California Department of Transportation Monitoring Results ... · PDF fileMRR, ASBS monitoring, TMDL monitoring, water quality results, cooperative agreements, corrective action

October 2017

California Department of Transportation

Monitoring Results Report: Fiscal Year 2016–17

CTSW-RT-17-350.01.01

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NOTICE For individuals with sensory disabilities, this document is available in alternate formats upon request. Please call or write to: Stormwater Liaison California Department of Transportation, Division of Environmental Analysis PO Box 942874, MS-27 Sacramento, CA 94274-0001 (916) 653-8896 Voice, or dial 711 to use a relay service.


CALTRANS TECHNICAL REPORT DOCUMENTATION PAGE

1. Report No. CTSW-RT-17-350.01.01

2. Type of Report Report

3. Report Phase and Edition Final

4. Title and Subtitle Monitoring Results Report: Fiscal Year 2016–17

5. Report Date October 2017

6. Copyright Owner(s) California Department of Transportation

7. Caltrans Project Coordinator Mark Keisler, P.E.

8. Performing Organization Names and Addresses Office of Water Programs California State University, Sacramento 6000 J Street Modoc Hall, Suite 1001 Sacramento, CA 95819-6025

9. Task Order No. 01 Amendment No. None 10. Contract No. 43A0350

11. Sponsoring Agency Name and Address California Department of Transportation 1120 N Street P.O. Box 942874 MS 27 Sacramento, CA 94274

12. Caltrans Functional Reviewers Dr. Bhaskar Joshi, P.E.; Ram Gupta, P.E.; Mark Keisler, P.E.; Nelson Kwong, P.E.; Bala Nanjundaiah, P.E.; Cornelis Hakim, P.E. Mike Rogers, P.G., C.E.G.

13. Supplementary Notes None

14. External Reviewers Dr. Michael Trapp, MBI.

15. Abstract The Caltrans NPDES Permit requires water quality monitoring at ASBS and TMDL sites, also referred to as Tier 1 monitoring sites. The results of this water quality monitoring and a summary of sites requiring corrective action are to be reported annually in the Monitoring Results Report (MRR). This MRR includes data for Fiscal Year 2016–17. 16. Key Words MRR, ASBS monitoring, TMDL monitoring, water quality results, cooperative agreements, corrective action

17. Distribution Statement None

18. No. of Pages 334


Monitoring Results Report Fiscal Year 2016–17

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TABLE OF CONTENTS TABLE OF CONTENTS........................................................................................................................ i

List of Tables ................................................................................................................................ v

List of Figures ............................................................................................................................ viii

List of Abbreviations and Acronyms ........................................................................................... ix

INTRODUCTION ............................................................................................................................... 1

1.1 BACKGROUND AND PURPOSE .......................................................................................... 1

1.2 NUMBER OF ACTIVE MONTIORING SITES ........................................................................ 2

1.3 PRESENTATION OF WATER QUALITY DATA ...................................................................... 2

1.3.1 Monitoring Site Identification Number .................................................................... 3

1.3.2 Surface Water Ambient Monitoring Program Comparability ................................... 3

1.3.3 Quality Assurance/Quality Control Samples ............................................................. 3

1.4 DATA SUBMITTAL ............................................................................................................. 4

1.4.1 Limitations of the Data ............................................................................................. 4

1.4.2 Relation to the Annual Report .................................................................................. 4

ASBS MONITORING ......................................................................................................................... 5

2.1 OVERVIEW ........................................................................................................................ 5

2.1.1 Monitoring Sites ...................................................................................................... 10

2.2 RESULTS .......................................................................................................................... 14

2.2.1 Changes from the 2015–16 Wet Season ................................................................ 14

2.2.2 Storm Event Summary ............................................................................................ 17

2.2.3 Northern California RMG ASBS Sites ...................................................................... 20

2.2.4 Central California RMG ASBS Sites .......................................................................... 41

2.2.5 Southern California RMG ASBS Sites ...................................................................... 77

2.3 COMPARISON TO NATURAL WATER QUALITY ............................................................. 123

TMDL MONITORING .................................................................................................................... 149


ii

3.1 OVERVIEW .................................................................................................................... 149

3.1.1 Monitoring Sites .................................................................................................... 149

3.1.2 Monitoring Approach ............................................................................................ 160

3.1.3 Monitoring Projects on Hold ................................................................................. 161

3.2 RESULTS ........................................................................................................................ 163

3.2.1 Storm Event Summary .......................................................................................... 163

3.2.2 Chollas Creek Project Sites .................................................................................... 168

3.2.3 Tier 1 Project Sites ................................................................................................ 201

TIER 2 MONITORING ................................................................................................................... 325

CORRECTIVE ACTIONS ................................................................................................................. 327

5.1 ASBS SITES .................................................................................................................... 327

5.1.1 ASBS 05 ................................................................................................................. 328

5.1.2 ASBS 08 ................................................................................................................. 328

5.1.3 ASBS 09 ................................................................................................................. 328

5.1.4 ASBS 15 ................................................................................................................. 328

5.1.5 ASBS 34 ................................................................................................................. 328

5.1.6 ASBS 24 ................................................................................................................. 328

5.1.7 ASBS 33 ................................................................................................................. 329

5.2 TMDL SITES ................................................................................................................... 329

5.2.1 Chollas Creek Project ............................................................................................ 329

5.2.2 Tier 1 Project ......................................................................................................... 329

5.2.3 District 8 Coachella Valley TMDL Monitoring Project ........................................... 329

5.2.4 Rainbow Creek TMDL Monitoring Project ............................................................ 329

SITES PROPOSED TO BE RELEASED FROM MONITORING ........................................................... 331

6.1 ASBS Sites ..................................................................................................................... 331

6.2 TMDL Sites .................................................................................................................... 331

REFERENCES ................................................................................................................................ 333


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Appendix A Water Quality Data for the 2016–17 Wet Season (Electronic Only) Appendix B Monitoring Reports from Cooperative Agreements (Electronic Only) Appendix C ASBS Additional Information Appendix D Water Quality Reference Values for TMDL Sites Appendix E Communication with the State Water Board and Regional Water Boards


iv



v

LIST OF TABLES

Table 2.01 ASBS with Caltrans Discharges ........................................................................... 6

Table 2.02 Target Number of Samples Per Wet Season by Monitoring Type ..................... 9

Table 2.03 ASBS 05 Monitoring Sites ................................................................................. 10







Table 2.10 2016–17 Storm Event Summary ...................................................................... 18

Table 2.11 Cumulative Number of Storm Events Captured .............................................. 19

Table 2.12 Caltrans Monitoring Sites in ASBS 05 ............................................................... 20


Table 2.14a Results for ASBS 05 UOs (18”–36”) .................................................................. 23

Table 2.14b Results for ASBS Site 1-331 (SAU008, CO) ....................................................... 25

Table 2.14c Results for ASBS Site 1-338 (SAU012-ORW) ..................................................... 27


Table 2.15b Results for ASBS Site 1-322 (RED028, CO) ........................................................ 31

Table 2.15c Results for ASBS Site 1-323 (RED028-ORW) ..................................................... 35




Table 2.19a Results for ASBS Site 4-341 (FIT012, CO) ......................................................... 45

Table 2.19b Results for ASBS Site 4-342 (FIT012-ORW) ...................................................... 49


Table 2.20b Results for ASBS Site 4-345 (ANO033, CO) ....................................................... 57

Table 2.20c Results for ASBS Site 4-346 (ANO033-ORW) .................................................... 61

Table 2.21a Results for ASBS Site 5-303 (CAR006, UO) ....................................................... 67


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Table 2.21b Results for ASBS Site 5-304 (CAR007B, CO) ..................................................... 69

Table 2.21c Results for ASBS Site 5-305 (CAR007B-ORW) .................................................. 73




Table 2.24b Results for ASBS 24 UOs (>36”) ........................................................................ 93

Table 2.24c Results for ASBS Site 7-345 (MUG010) ............................................................ 97

Table 2.24d Results for ASBS Site 7-407 (MUG010RW) ..................................................... 101

Table 2.25a Results for ASBS Site 12-358 (IRV001, UO) .................................................... 107

Table 2.25b Results for ASBS 33 UOs (>36”) ...................................................................... 109

Table 2.25c Results for ASBS Site 12-362 (IRV009 Upstream) .......................................... 113

Table 2.25d Results for ASBS Site 12-363 (Muddy Creek) ................................................. 115

Table 2.25e Results for ASBS Site 12-350 (IRV007, CO) ..................................................... 117

Table 2.25f Results for ASBS Site 12-351 (IRV007-ORW) .................................................. 119

Table 2.26 ASBS Natural Water Quality Values ............................................................... 127

Table 2.27a Comparison with Natural Water Quality Values – ASBS 05 ........................... 131

Table 2.27b Comparison with Natural Water Quality Values – ASBS 08 ........................... 133

Table 2.27c Comparison with Natural Water Quality Values – ASBS 09 ........................... 135

Table 2.27d Comparison with Natural Water Quality Values – ASBS 15 ........................... 137

Table 2.27e Comparison with Natural Water Quality Values – ASBS 34 ........................... 139

Table 2.27f Comparison with Natural Water Quality Values – ASBS 24 ........................... 141

Table 2.27g Comparison with Natural Water Quality Values – ASBS 33 ........................... 143

Table 3.01 Number of TMDL Monitoring Sites by Project ............................................... 149

Table 3.02 List of TMDL Monitoring Sites for Chollas Creek Project ............................... 151

Table 3.03 List of TMDL Monitoring Sites for Tier 1 Project ............................................ 153

Table 3.04 2016–17 Storm Event Sampling Summary for Chollas Creek Project ............ 164

Table 3.05 2016–17 Storm Event Sampling Summary for Tier 1 Project ........................ 165

Table 3.06 Cumulative Number of Storm Events Captured at Chollas Creek Sites ......... 166

Table 3.07 Cumulative Number of Storm Events Captured at Tier 1 Sites ...................... 167


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Table 3.08 Chollas Creek Project Sites ............................................................................. 168

Table 3.09a Results for Chollas Creek TMDL Site 11-340 (28th Street Influent) ................ 171

Table 3.09b Results for Chollas Creek TMDL Site 11-341 (28th Street Effluent) ................ 173

Table 3.09c Results for Chollas Creek TMDL Site 11-343 (I-15S/SR94-INF) ...................... 177

Table 3.09d Results for Chollas Creek TMDL Site 11-344 (I-15S/SR94-EFF) ...................... 179

Table 3.09e Results for Chollas Creek TMDL Site 11-346 (I-15S/Market-EFF) .................. 183

Table 3.09f Results for Chollas Creek TMDL Site 11-350 (SR94E/Bridge-INF) .................. 187

Table 3.09g Results for Chollas Creek TMDL Site 11-351 (SR94E/Bridge-EFF) .................. 189

Table 3.09h Results for Chollas Creek TMDL Site 11-352 (SR94E/Mass-INF) .................... 193

Table 3.09i Results for Chollas Creek TMDL Site 11-353 (SR94E/Mass-EFF) .................... 195

Table 3.09j Results for Chollas Creek TMDL Receiving Water Sites ................................. 199

Table 3.10 Tier 1 Project Sites – Group 1 ......................................................................... 201




Table 3.14 Results for Tier 1 Project Site 1-341 (1-Hum-101-37.334) ............................. 205

Table 3.15 Results for Tier 1 Project Site 1-342 (1-Hum-101-27.673) ............................. 209

Table 3.16a Results for Tier 1 Project Site 4-349 (Carquinez Bridge, South) .................... 213

Table 3.16b Results for Tier 1 Project Site 4-351 (I-580/80 Interchange) ......................... 219

Table 3.17 Results for Tier 1 Project Site 4-350 (I-680/24 Interchange) ......................... 225

Table 3.18 Results for Tier 1 Project Site 4-407 (4-Mrn-131-R1.558) ............................. 231

Table 3.19a Results for Tier 1 Project Site 4-412 (4-Sol-12-0.945) .................................... 235

Table 3.19b Results for Tier 1 Project Site 4-413 (4-Sol-12-0.945) .................................... 237

Table 3.20a Results for Tier 1 Project Site 4-414 (4-CC-4-23.9-INF) .................................. 241

Table 3.20b Results for Tier 1 Project Site 4-415 (4-CC-4-23.9-EFF) ................................. 243

Table 3.21a Results for Tier 1 Project Site 5-306 (Santa Cruz HWY 1/17 IC) ..................... 247

Table 3.21b Results for Tier 1 Project Site 5-307 (Santa Cruz SB HWY 1 Influent) ............ 251

Table 3.21c Results for Tier 1 Project Site 5-308 (Santa Cruz SB HWY 1 Effluent) ............ 253

Table 3.22a Results for Tier 1 Project Site 2-303 (Shasta River Influent) .......................... 257


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Table 3.22b Results for Tier 1 Project Site 2-304 (Shasta River Effluent) .......................... 259

Table 3.23 Results for Tier 1 Project Site 2-305 (Lost River) ............................................ 263

Table 3.24 Results for Tier 1 Project Site 2-306 (Mad River) ........................................... 267

Table 3.25a Results for Tier 1 Project Site 3-397 (I-5 Southbound at Consumnes) .......... 271

Table 3.25b Results for Tier 1 Project Site 10-300 (209-6T) .............................................. 275

Table 3.25c Results for Tier 1 Project Site 4-405 (Antioch Influent) ................................. 279

Table 3.25d Results for Tier 1 Project Site 4-406 (Antioch Effluent) ................................. 281

Table 3.26a Results for Tier 1 Project Site 3-404 (Truckee River Influent) ........................ 285

Table 3.26b Results for Tier 1 Project Site 3-405 (Truckee River Effluent) ........................ 287

Table 3.27a Results for Tier 1 Project Site 7-08 (North Hollywood CSF Inlet) ................... 291

Table 3.27b Results for Tier 1 Project Site 7-09 (North Hollywood CSF Outlet) ................ 293

Table 3.27c Results for Tier 1 Project Site 7-404, (UCLA-1 Influent) ................................. 297

Table 3.27d Results for Tier 1 Project Site 7-201 (UCLA-1 Effluent) .................................. 299

Table 3.27e Results for Tier 1 Project Site 7-405 (Shoup Influent) ................................... 303

Table 3.27f Results for Tier 1 Project Site 7-406 (Shoup Effluent) ................................... 305

Table 3.28 Results for Tier 1 Project Site 7-336 (SMB-MC) ............................................. 309

Table 3.29a Results for Tier 1 Project Site 12-329 (1149L Inlet) ....................................... 313

Table 3.29b Results for Tier 1 Project Site 12-330 (1149L Outlet) .................................... 315

Table 3.29c Results for Tier 1 Project Site 12-335 (1194R Inlet) ....................................... 319

Table 3.29d Results for Tier 1 Project Site 12-336 (1194R Outlet) .................................... 321

Table 5.01 ASBS Exceedances to Date ............................................................................. 327 LIST OF FIGURES

Figure 2.01 ASBS Affected by Caltrans Discharges ............................................................... 7

Figure 2.02a ASBS Compliance Flow Chart – Part 1 ............................................................ 125

Figure 2.02b ASBS Compliance Flow Chart – Part 2 ............................................................ 126

Figure 3.01 TMDL Watersheds with Caltrans Monitoring Sites ........................................ 159


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LIST OF ABBREVIATIONS AND ACRONYMS ASBS Area (or Areas) of Special Biological Significance Basin Plan Water Quality Control Plan BMP Best Management Practice Caltrans California Department of Transportation Ce. Coast Central Coast CEDEN California Environmental Data Exchange Network CO Coupled Outfall CTR California Toxics Rule MRR Monitoring Results Report No. CA Northern California NPDES National Pollutant Discharge Elimination System NWQ Natural Water Quality ORA Ocean Reference Area ORW Ocean Receiving Water Permit Caltrans NPDES Statewide Storm Water Permit Order No. 2012-0011-DWQ PCH Pacific Coast Highway QA/QC Quality Assurance/Quality Control QAPP Quality Assurance Project Plan QPF Quantitative Precipitation Forecast Regional Water Board Regional Water Quality Control Board RMG Regional Monitoring Group SCCWRP Southern California Coastal Water Research Project Site ID Site Identifier SMARTS Storm Water Multiple Application and Report Tracking System So. CA Southern California State Parks California Department of Parks and Recreation State Water Board State Water Resources Control Board SWAMP Surface Water Ambient Monitoring Program TMDL Total Maximum Daily Load UO Uncoupled Outfall WLA Waste Load Allocation WQS Water Quality Standard


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1

Section 1

INTRODUCTION 1.1 BACKGROUND AND PURPOSE This Monitoring Results Report (MRR) is being submitted pursuant to reporting requirements in the California Department of Transportation (Caltrans) National Pollutant Discharge Elimination System (NPDES) Statewide Storm Water Permit Order No. 2012-0011-DWQ (Permit), Section E.2.c.5 (State Water Board 2012). The NPDES Permit requires monitoring to be conducted in two tiers. Tier 1 consists of all sites for which monitoring is required pursuant to the Areas of Special Biological Significance (ASBS) Special Protections and for which monitoring is required pursuant to an approved Total Maximum Daily Load (TMDL) in an impaired watershed where Caltrans has been assigned a Waste Load Allocation (WLA). Tier 2 consists of effluent and receiving water sites that are not a part of ASBS or TMDL monitoring. The NPDES Permit requires that the MRR include: • A list of all Tier 1 and Tier 2 sites that had been actively monitored during the past fiscal

year, i.e., from July 1 of the prior year through June 30 of the current year; • Results of the past fiscal year’s monitoring activities, including effluent and receiving

water quality monitoring, with sample values exceeding applicable Water Quality Standards (WQSs) highlighted; and

• A summary of sites requiring corrective actions needed to achieve compliance, and a

review of any iterative procedures (where applicable) at sites needing corrective actions.


2

1.2 NUMBER OF ACTIVE MONTIORING SITES For the 2016–17 wet season, 134 Tier 1 sites were actively monitored by Caltrans. These sites consisted of:

• ASBS Monitoring Program, 84 sites

• TMDL Monitoring Program, 50 sites The total number of Tier 1 sites exceeded the NPDES Permit requirement of 100; therefore, no Tier 2 sites were monitored during the 2016–17 wet season. In addition to these 134 Tier 1 sites, Caltrans also entered into cooperative agreements. For the 2016–17 wet season, Caltrans participated in ten cooperative agreements in approximately eight TMDL watersheds. Some of these cooperative agreements include provisions to perform monitoring activities related to adopted TMDLs. Monitoring under cooperative agreements occurred at 42 sites as stated in the cooperative stakeholder group monitoring reports that were available as of this report date. 1.3 PRESENTATION OF WATER QUALITY DATA Water quality monitoring data for storm events successfully monitored at ASBS sites are presented in Section 2. Water quality monitoring data for storm events successfully monitored at TMDL sites are presented in Section 3. In the future, if monitoring is conducted at Tier 2 sites, effluent and receiving water quality monitoring data will be presented in Section 4. No Tier 2 sites were monitored for the 2016–17 wet season. Water quality data for each site are provided in a data table. Data for each constituent analyzed are reported as they were received from the analytical laboratories. The number of significant figures used to report data may vary throughout this document due to reporting by different laboratories, and in some cases, different dilutions. Results from quality assurance/ quality control (QA/QC) samples are not included in data tables but are included in Appendix A—Water Quality Data for the 2016–17 Wet Season.


3

The available reports for monitoring activities conducted under cooperative agreements are provided in Appendix B–Monitoring Reports from Cooperative Agreements. Appendix B includes reports from the 2015–16 wet season issued after July 1, 2016 (i.e., not included in the previous MRR) and reports from the 2016–17 wet season submitted through September 1, 2017. 1.3.1 Monitoring Site Identification Number Each monitoring site in this report is designated by a unique monitoring site identifier (Site ID). Site IDs are composed of two parts separated by a hyphen; the first part is the number of the Caltrans district in which the monitoring site resides, and the second part is a three-digit number, generally assigned on a sequential basis. For example, Monitoring Site 201 in Caltrans District 7 is identified as Site 7-201. The site number portion of a Site ID is not unique; individual sites in different Caltrans districts can be assigned the same site number. For example, site number 201 exists in Caltrans District 6 (Site 6-201) and in Caltrans District 7 (Site 7-201). 1.3.2 Surface Water Ambient Monitoring Program Comparability All monitoring during the 2016–17 wet season was conducted in accordance with Surface Water Ambient Monitoring Program (SWAMP)-compliant Quality Assurance Project Plans (QAPPs). The data reported in this MRR is SWAMP comparable. 1.3.3 Quality Assurance/Quality Control Samples Under the ASBS and TMDL monitoring programs, samples marked as QA/QC are only used for QA/QC analysis. These QA/QC results are not included in the data tables in this MRR but are included in Appendix A.


4

1.4 DATA SUBMITTAL The NPDES Permit requires all receiving water and effluent water quality data to be uploaded to the Storm Water Multiple Application and Report Tracking System (SMARTS) and all receiving water monitoring data to be uploaded to the California Environmental Data Exchange Network (CEDEN). However, the SMARTS system is unable to receive stormwater monitoring data from Caltrans. Therefore, Caltrans has opted to (1) upload all monitoring data to the CEDEN system, and (2) provide all monitoring data in a spreadsheet, with three worksheets, as an appendix to this MRR. There is one worksheet for general chemistry data, one worksheet for field data, and one worksheet for toxicity data. The data upload for the 2016–17 wet season to CEDEN is expected to be completed by fall 2017. All data for the 2016–17 wet season, including associated QA/QC data, are included in Appendix A. 1.4.1 Limitations of the Data All data (i.e., data from both ASBS and TMDL sites) for the 2016–17 wet season have been reviewed. However, not all data have been finalized due to the delayed submittal of some electronic data deliverables by laboratories. It is possible that some values may change once the data are finalized. Caltrans will issue an addendum or errata sheet to this report if there are any changes. 1.4.2 Relation to the Annual Report The 2016–17 Stormwater Management Program Annual Report (Annual Report) describes the stormwater management activities Caltrans performed from July 1, 2016 to June 30, 2017. The Annual Report includes a description of the monitoring activities in Section 3 and a summary of the monitoring results in Section 16. The same information is shared in both the Annual Report and the MRR. The Annual Report was finalized prior to the finalization of the MRR. Therefore, it is possible there are inconsistencies between the two documents due to edits made to the MRR after the finalization of the Annual Report. These inconsistencies are noted where applicable.


5

Section 2

ASBS MONITORING 2.1 OVERVIEW The ASBS monitoring was conducted in accordance with the NPDES Permit, Section E.2.c.2)a)i), also referred to as the Special Protections. ASBS monitoring comprises the following: 1. Core Discharge Monitoring Program

2. Ocean Receiving Water and Reference Area Monitoring Program The Core Discharge Monitoring Program consists of estimating runoff flow measurements and collecting grab samples of runoff at outfalls equal to or greater than 18 inches in diameter or width. The Ocean Receiving Water and Reference Area Monitoring Program includes (1) collecting grab samples from the surf zone in the ocean at the point where runoff from an outfall discharges into the ocean, and (2) collecting grab samples from ocean reference area sites where flow from a natural drainage discharges into the ocean. The Special Protections prescribe two options for fulfilling the monitoring requirements associated with the Ocean Receiving Water and Reference Area Monitoring Program: Option 1. Conduct an Individual Monitoring Program, or Option 2. Participate in a Regional Integrated Monitoring Program. Caltrans chose Option 2. Caltrans entered into data sharing agreements with the three ASBS Regional Monitoring Groups (RMGs): Northern California (No. CA), Central Coast (Ce. Coast), and Southern California (So. CA). Under these agreements, Caltrans provides the results of its ocean receiving water (ORW) monitoring to the RMGs. Caltrans did not receive any data collected by others. Caltrans only receives the calculated natural water quality (NWQ) values, also referred to as the 85th percentile values, which are calculated from ocean reference area (ORA) data.


6

Attachment III of the NPDES Permit lists the 77 ASBS high-priority discharge locations to be monitored. These 77 high-priority discharge locations were originally identified in March 2001 (SCCWRP 2003). Some of these 77 locations have been replaced by alternate locations due to, for example, safety concerns, landslides, and a lack of connectivity to the ocean. Table 2.01 lists the seven ASBS with Caltrans priority discharges, the abbreviated ASBS names that will be used throughout this MRR, and the corresponding RMG. A map of California that shows the approximate location of the seven ASBS is provided in Figure 2.01. Table 2.01. ASBS with Caltrans Discharges

ASBS No.

ASBS Name

Name Used in this MRR

RMG

05 Kelp Beds at Saunders Reef Saunders Northern California (No. CA)

08 Redwoods National Park Redwoods Northern California (No. CA)

09 James V. Fitzgerald Marine Reserve Fitzgerald Central Coast (Ce. Coast)

15 Ano Nuevo Point and Island Ano Nuevo Central Coast (Ce. Coast)

24 Laguna Point to Latigo Point Laguna to Latigo Southern California (So. CA)

33 Irvine Coast Marine Life Refuge Irvine Coast Southern California (So. CA)

34 Carmel Bay Carmel Bay Central Coast (Ce. Coast)


7

Figure 2.01. ASBS Affected by Caltrans Discharges


8



9

ASBS outfalls are classified as either coupled or uncoupled outfalls. Coupled outfalls (CO) are associated with ORW sites and uncoupled outfalls (UO) are not. ORW sites are located in the surf zone of the ocean adjacent to coupled outfalls. The ORA sites are located in the surf zone of the ocean at mouths of open space watersheds with typically less than 10 percent development. The ORA and ORW sites are approved by State Water Resources Control Board (State Water Board) staff. The constituent lists vary among RMG areas, and the constituent lists are based on the ASBS Special Protections, the California Ocean Plan, the QAPPs for each RMG, and discussions with State Water Board staff. The RMGs have completed their respective monitoring, and Caltrans continues to use the RMG area QAPPs. The constituent lists are described further in the Caltrans Quality Assurance Project Plan (Caltrans 2016). ORW samples are only collected when the stormwater runoff from the coupled outfall is observed to reach the ORW site. The NPDES Permit requires a minimum of three storm events to be captured per wet season, over two wet seasons, at the ORW sites—see Sections E.2.c.2)a)i)(2)(b)(i) and (iii). The target number of samples to be collected for each type of monitoring each wet season are listed in Table 2.02. Table2.02.TargetNumberofSamplesPerWetSeasonbyMonitoringType

Monitoring Type

Number of Samples1

Pre‐Storm Sample

Post‐Storm Sample2

Core Discharge Monitoring Program

Coupled Outfall sites 3 / 6

Uncoupled Outfall sites 1 / 3

Ocean Receiving Water and Reference Area Monitoring Program

Ocean Receiving Water (ORW) sites 3 / 6

Ocean Reference Area (ORA) sites See Note 3 See Note 3 See Note 3 Notes: 1. For the 2016–17 wet season, the State Water Board requested from Caltrans to increase the target number of

samples for ASBS 33 from three to six for coupled outfall sites, from one to three for uncoupled outfall sites, and from three to six for ORW sites. The target number of samples remained the same as in previous wet seasons at the remaining ASBS.

2. A post‐storm sample refers to a sample collected during, or immediately after, a storm event. 3. The Natural Water Quality values, discussed in Section 2.3, have been finalized. Therefore, no more

monitoring is required at the ORA sites.


10

2.1.1 Monitoring Sites Tables 2.03 through 2.09 list the actively monitored sites for the ASBS Monitoring Program for the 2016–17 wet season. Information in these tables includes site identification number, site name, monitoring type, Regional Water Quality Control Board (Regional Water Board) region number, and the latitude and longitude for each site. Table 2.03. ASBS 05 Monitoring Sites

Site ID

Site Name

Monitoring Type

Regional Water Board

Latitude

Longitude

1-325 SAU019A Outfall, 18"–36" 1 38.86067 -123.65280

1-326 SAU020A Outfall, 18"–36" 1 38.85916 -123.65273

1-327 SAU015 Outfall, 18"–36" 1 38.85612 -123.65178

1-328 SAU014 Outfall, 18"–36" 1 38.85510 -123.65170

1-329 SAU013A Outfall, 18"–36" 1 38.85451 -123.65140

1-330 SAU011A Outfall, 18"–36" 1 38.85270 -123.64853

1-331 SAU008 Outfall, Coupled 1 38.85202 -123.64821

1-334 SAU009A Outfall, 18"–36" 1 38.85254 -123.64809

1-335 SAU006A Outfall, 18"–36" 1 38.85186 -123.64777

1-337 SAU016A Outfall, 18"–36" 1 38.85849 -123.65237

1-338 SAU012-ORW Ocean Receiving Water 1 38.85178 -123.64892

Table 2.04. ASBS 08 Monitoring Sites

Site ID

Site Name

Monitoring Type


Latitude

Longitude

1-317 RED014 Outfall, 18"–36" 1 41.63059 -124.11296

1-318 RED015 Outfall, 18"–36" 1 41.62928 -124.11257

1-320 RED017A Outfall, 18"–36" 1 41.61195 -124.10571

1-321 RED023 Outfall, 18"–36" 1 41.60527 -124.10170

1-322 RED028 Outfall, Coupled 1 41.59799 -124.10066

1-323 RED028-ORW Ocean Receiving Water 1 41.59732 -124.10138

1-324 RED027 Outfall, 18"–36" 1 41.59654 -124.10127

1-336 RED018A Outfall, 18"–36" 1 41.61300 -124.10610


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Table 2.05. ASBS 09 Monitoring Sites Site ID

Site Name

Monitoring Type


Latitude

Longitude

4-341 FIT012 Outfall, Coupled 2 37.531406 -122.51686

4-342 FIT012-ORW Ocean Receiving Water 2 37.530960 -122.51783


Site ID

Site Name

Monitoring Type


Latitude

Longitude

4-343 ANO001 Outfall, 18”–36” 3 37.12167 -122.30636

4-344 ANO030 Outfall, 18”–36” 3 37.11415 -122.30105

4-345 ANO033 Outfall, Coupled 3 37.11292 -122.29890

4-346 ANO033-ORW Ocean Receiving Water 3 37.11183 -122.29899

4-348 ANO035 Outfall, 18”–36” 3 37.10787 -122.29270

4-353 ANO002 Outfall, 18”–36” 3 37.11987 -122.30534


Site ID

Site Name

Monitoring Type


Latitude

Longitude

5-303 CAR006 Outfall, 18”–36” 3 36.52463 -121.92431

5-304 CAR007B Outfall, Coupled 3 36.52499 -121.92379

5-305 CAR007B-ORW Ocean Receiving Water 3 36.52647 -121.92525


12

Table 2.08. ASBS 24 Monitoring Sites Site ID

Site Name

Monitoring Type


Latitude

Longitude

7-343 MUG005 Outfall, >36” 4 34.083896 -119.038210

7-345 MUG010 Outfall, Coupled 4 34.070804 -119.014826

7-346 MUG013 Outfall, 18”–36” 4 34.065445 -118.993551

7-347 MUG016 Outfall, <18” 4 34.062852 -118.987069

7-348 MUG028 Outfall, 18”–36” 4 34.058928 -118.974165

7-349 MUG031 Outfall, 18”–36” 4 34.056265 -118.968706

7-350 MUG041 Outfall, 18”–36” 4 34.053461 -118.964271

7-351 MUG046 Outfall, <18” 4 34.052112 -118.960862

7-352 MUG048 Outfall, <18” 4 34.051645 -118.959451

7-353 MUG049 Outfall, 18”–36” 4 34.051650 -118.95943

7-354 MUG051 Outfall, 18”–36” 4 34.050937 -118.957316

7-355 MUG053 Outfall, 18”–36” 4 34.050248 -118.955390

7-356 MUG058 Outfall, <18” 4 34.048355 -118.950420

7-357 MUG059 Outfall, 18”–36” 4 34.048835 -118.951500

7-358 MUG061 Outfall, <18” 4 34.047675 -118.948340

7-359 MUG066 Outfall, 18”–36” 4 34.047140 -118.924654

7-360 MUG070 Outfall, <18” 4 34.045864 -118.931970

7-361 MUG073 Outfall, <18” 4 34.046418 -118.922723

7-362 MUG077 Outfall, <18” 4 34.045197 -118.934452

7-363 MUG078 Outfall, <18” 4 34.045431 -118.934358

7-364 MUG135 Outfall, 18”–36” 4 34.041983 -118.897426

7-365 MUG147 Outfall, <18” 4 34.041553 -118.894154

7-366 MUG150 Outfall, <18” 4 34.040872 -118.889212

7-367 MUG187 Outfall, <18” 4 34.039285 -118.869505

7-368 MUG283 Outfall, >36” 4 34.025890 -118.765915

7-370 MUG346 Outfall, <18” 4 34.025080 -118.783588

7-371 MUG355 Outfall, 18”–36” 4 34.020820 -118.829696

7-372 SAD0950 Outfall, 18”–36” 4 34.026990 -118.838550

7-373 SAD0960 Outfall, 18”–36” 4 34.023020 -118.837500

7-374 SAD0970 Outfall, 18”–36” 4 34.025359 -118.836458

7-375 SAD0980 Outfall, >36” 4 34.024387 -118.834798


13

Table 2.08. (cont’d) Site ID

Site Name

Monitoring Type


Latitude

Longitude

7-376 SAD0990 Outfall, >36” 4 34.023020 -118.832672

7-377 SAD1000 Outfall, 18”–36” 4 34.021265 -118.830324

7-378 SAD1040 Outfall, 18”–36” 4 34.017480 -118.825660

7-379 SAD1050 Outfall, 18”–36” 4 34.017000 -118.824920

7-380 SAD1060 Outfall, >36” 4 34.015590 -118.822540

7-381 SAD1030 Outfall, 18”–36” 4 34.018711 -118.827049

7-383 MUG318 Outfall, 18”–36” 4 34.023879 -118.834316

7-384 ALT004 Outfall, 18”–36” 4 34.086090 -119.059097

7-385 ALT005 Outfall, <18” 4 34.085415 -119.054291

7-386 ALT006 Outfall, <18” 4 34.085361 -119.048653

7-388 ALT008 Outfall, <18” 4 34.062325 -118.985931

7-389 ALT009 Outfall, <18” 4 34.059978 -118.975975

7-390 ALT010 Outfall, <18” 4 34.047873 -118.948184

7-391 ALT011 Outfall, <18” 4 34.045355 -118.939404

7-393 ALT017 Outfall, 18”–36” 4 34.025805 -118.777059

7-400 ALT018 Outfall, <18” 4 34.083392 -119.035485

7-407 MUG010RW Ocean Receiving Water 4 34.070663 -119.014887


Site ID

Site Name

Monitoring Type


Latitude

Longitude

12-350 IRV007 Outfall, Coupled 8 33.564500 -117.828167

12-351 IRV007-ORW Ocean Receiving Water 8 33.564153 -117.828557

12-352 IRV002 Outfall, >36” 8 33.560705 -117.82148

12-353 IRV009 Outfall, >36” 8 33.565300 -117.831200

12-354 IRV020 Outfall, >36” 8 33.574016 -117.840233

12-358 IRV001 Outfall, 18”–36” 8 33.558000 -117.81858

12-362 IRV009 Upstream Other 8 33.566744 -117.830345

12-363 Muddy Creek Other 8 33.565233 -117.827337 Notes: 1. Site 12-362 (IRV009 Upstream) and Site 12-363 (Muddy Creek) do not count toward the total number of ASBS

sites. Water quality samples are collected and results reported for informational purposes only.


14

2.2 RESULTS The monitoring results for each ASBS site are presented in data tables. The data tables contain the 2016–17 data for CO, UC, and ORW sites. The tables also contain the estimated annual runoff volume if the ASBS site is an outfall, i.e., CO or UC. The estimated annual runoff volume is based on the Caltrans tributary area. The method for calculating the annual runoff volume is provided in Appendix C–ASBS Additional Information. Data tables for the seven ORW sites for all storm events monitored from the 2012–13 wet season through the 2016–17 wet season are included in Section 2.3. These seven data tables in Section 2.3 contain the comparisons to NWQ values. Results from QA/QC samples, e.g., field blanks, field duplicates, etc., are not included in these tables. All water quality data, including QA/QC sample results, are provided in Appendix A. Results for field duplicates are used for QA/QC purposes only—the results of the original sample and field duplicate sample are not averaged together. 2.2.1 Changes from the 2015–16 Wet Season A couple of changes occurred to the ASBS Monitoring Program for the 2016–17 wet season. Constituent List. Changes to the constituent list were made, with State Water Board approval, to four of the seven ASBS: • ASBS 05 (Saunders). The following constituents were removed from the list:

polynuclear aromatic hydrocarbons, organophosphorus pesticides, pyrethroid pesticides, and toxicity.

• ASBS 09 (Fitzgerald). The following constituent was removed from the list:

orthophosphate. • ASBS 15 (Ano Nuevo). The following constituents were removed from the list:

orthophosphate and pyrethroid pesticides.


15

• ASBS 33 (Irvine Coast). The constituent list was revised to only include metals and polynuclear aromatic hydrocarbons.

Monitoring Sites. A couple of monitoring sites changed, and a couple of monitoring sites could not be monitored because they were damaged for the 2016–17 wet season.

• ASBS 05 (Saunders) and ASBS 08 (Redwoods). The ORA sites in these ASBS, Sites 1-340 (Greenwood Creek) and 1-339 (Nickel Creek), were not monitored in the 2016–17 wet season. Data from the ORA sites are used to calculate the NWQ values. These values were finalized in the previous wet season; therefore, no additional monitoring is required at these sites.

• ASBS 24 (Laguna Point to Latigo Point). For the past two wet seasons, a sand berm had

prevented runoff from the CO, Site 7-368 (MUG283), from reaching the ocean. The CO moved to a new location for the 2016–17 wet season—Site 7-345 (MUG010). Site 7-368 (MUG283) was still monitored during the 2016–17 wet season as an UO. The UO at Site 7-349 (MUG031) was destroyed by a landslide at the start of the wet season—no samples were collected at this site. The UO at Site 7-378 (SAD1040) was buried under a sand berm for the entire 2016–17 wet season—no samples were collected at this site.

• ASBS 33 (Irvine Coast). Two new sites were added for monitoring in ASBS 33. A new

site was added just upstream from existing Site 12-353 (IRV009) at an edge-of-pavement location that collects runoff exclusively from Pacific Coast Highway (PCH). This new site is Site 12-362 (IRV009 Upstream). Another new site was added along Muddy Creek upstream from any Caltrans stormwater input. This new site is Site 12-363 (Muddy Creek).


16

Field crews conducted a detailed investigation of the ASBS 33 monitoring sites at the start of the 2016–17 wet season. During the investigation, the pipe that Caltrans originally thought went from PCH to Site 12‐353 (IRV009) was found to be abandoned. The pipe had been abandoned during a construction project that was completed in 2005. Therefore, runoff received at Site 12‐353 (IRV009) appears to be exclusively from within the Crystal Cove State Park, which is owned and operated by the California Department of Parks and Recreation (State Parks). Monitoring continued at Site 12‐353 (IRV009) for the wet season.

SampleCollection. As described in Section 2.1, each storm event consists of collecting a single grab sample for water quality analysis. This sample collection approach was modified for monitoring at ASBS 33. For the 2016–17 wet season, time‐weighted composite samples were collected, instead of a single grab sample, due to the concern that the single grab sample result was not accurately representing the water quality at ASBS 33 sites. In general, samples were collected every 5 to 15 minutes at the outfalls. Samples were collected every hour at the ORW site. Starting with the third storm event, the ORW samples were split to create a composite of the entire storm event and two sub‐composites—one sub‐composite for the initial response and one sub‐composite for the watershed response. The initial response sub‐composite contains a higher percentage of Caltrans runoff than the watershed response sub‐composite. The sub‐composite for the watershed response is typically characterized by large sediment‐laden flows. RegionalMonitoringGroups. The three RMGs did not monitor during the 2016–17 wet season since their respective monitoring has been completed. Caltrans was the only ASBS discharger conducting monitoring activities during the 2016–17 wet season. Appendix C provides additional information on monitoring and reporting by the RMGs for previous wet seasons.


17

2.2.2 StormEventSummary

The mobilization criteria to qualify a storm event for ASBS monitoring is provided below. These criteria apply to outfalls and ORW sites. 1. A potential storm event must have a quantitative precipitation forecast (QPF) of at least

0.1 inch of rainfall with the probability of precipitation equal to or greater than 70 percent. Each ASBS has its own location‐specific minimum QPF criteria for mobilization. The location‐specific minimum QPF is based on previous experience with various storm event sizes that generate sufficient flow for successful sampling. The location‐specific minimum QPFs are provided below:

ASBS

Minimum

QPF (in)

ASBS 05, Saunders 0.5

ASBS 08, Redwoods 2.0

ASBS 09, Fitzgerald 0.25

ASBS 15, Ano Nuevo 0.75

ASBS 24, Laguna to Latigo 0.1

ASBS 33, Irvine Coast 0.1

ASBS 34, Carmel Bay 0.5

2. A potential storm event must be preceded by an antecedent dry period of at least 72

hours without a measurable storm event. A measurable storm event is an event which produces 0.1 inches or more rainfall in a 24‐hour period. This 72‐hour criterion may be shortened with State Water Board staff approval.

3. Some situations will require best professional judgment to determine whether to qualify

a storm event for monitoring. In addition to the mobilization criteria above, a successful storm event capture requires that the discharge from the coupled outfall must reach the ORW site. The number of storm events forecasted, false starts, and successfully captured for the ASBS Monitoring Program are presented in Table 2.10.


18

Table 2.10. 2016–17 Storm Event Summary

ASBS

Number of Forecasted

Events

Number of Non-

mobilized Storm Events1, 3

Number of False Start

Storm Events2, 3

Number of Successfully

Captured Storm Events2, 3

ASBS 05 (Saunders) 11 7 1 3

ASBS 08 (Redwoods) 16 13 0 3

ASBS 09 (Fitzgerald) 25 19 3 3

ASBS 15 (Ano Nuevo) 14 9 2 3

ASBS 34 (Carmel Bay) 27 22 3 2

ASBS 24 (Laguna to Latigo) 28 25 0 3

ASBS 33 (Irvine Coast) 14 7 1 6 Notes: 1. A non-mobilized storm event occurs when a forecasted storm event fails to meet the mobilization criteria at

the point in time when a “Go” or “No-Go” decision needs to be made. 2. A false start or successfully captured storm event is a storm event that met the criteria for mobilization and

resulted in (a) a successfully captured storm event, (b) an incomplete storm event, (c) a false start, or (d) a ground truthing storm event. An incomplete storm event occurs when a field crew mobilizes to a site, collects the pre-storm samples, but are not able to collect the during-storm samples. A false start occurs when a field crew mobilizes to a site but neither the pre-storm nor during-storm samples are collected. A ground truthing storm event occurs when a field crew mobilizes to a site to verify the approximate drainage area during a storm event—no samples are collected.

3. Number of Non-mobilized Storm Events + Number of False Start Storm Events + Number of Successfully Captured Storm Events = Number of Forecasted Events.

The 2016–17 wet season is the fifth wet season for the ASBS monitoring effort. The cumulative numbers of storm events captured over the five wet seasons are presented in Table 2.11.


19

Table 2.11. Cumulative Number of Storm Events Captured

ASBS

Ocean

Receiving Water Site ID

2016–17 Number of

Successfully Captured Storm

Events

Cumulative Number of

Successfully Captured Storm

Events1

Target

Number of Storm

Events2

ASBS 05 (Saunders) 1-338 3 9 6

ASBS 08 (Redwoods) 1-323 3 6 6

ASBS 09 (Fitzgerald) 4-342 3 9 6

ASBS 15 (Ano Nuevo) 4-346 3 8 6

ASBS 34 (Carmel Bay) 5-305 2 6 6

ASBS 24 (Laguna to Latigo) 7-369 3 4 6

ASBS 33 (Irvine Coast) 12-351 6 15 6 Notes: 1. Monitoring continued at the ASBS 05, ASBS 09, ASBS 15, and ASBS 33 ORW sites beyond the minimum six

storm events at the direction of State Water Board staff. 2. The target number of storm events is six—three storm events per wet season over two wet seasons. See

Permit Sections E.2.c.2)a)i)(2)(b)(ii) and (iii).


20

2.2.3 Northern California RMG ASBS Sites Tables 2.12 and 2.13 summarize the storm event sampling conducted at the No. CA RMG sites during the 2016–17 wet season. Additional site information is provided in Appendix C. Table 2.12. Caltrans Monitoring Sites in ASBS 05

Site ID

Site Name

Monitoring Type1

Event 10/14/2016

Event 11/19/2016

Event 12/10/2016

1-325 SAU019A UO, 18"–36"

1-326 SAU020A UO, 18"–36"

1-327 SAU015 UO, 18"–36"

1-328 SAU014 UO, 18"–36"

1-329 SAU013A UO, 18"–36"

1-330 SAU011A UO, 18"–36"

1-331 SAU008 CO

1-334 SAU009A UO, 18"–36"

1-335 SAU006A UO, 18"–36"

1-337 SAU016A UO, 18"–36"

1-338 SAU012-ORW ORW

A summary of the ASBS 05 wet season is provided below: • The target number of storm events (three) for the ORW site was successfully captured.

• The target number of storm events (three) for coupled outfalls was successfully captured.

• The target number of storm events (one) for uncoupled outfalls was successfully captured.


21

Table 2.13. Caltrans Monitoring Sites in ASBS 08 Site ID

Site Name

Monitoring Type1

Event 10/13/2016

Event 1/10/2017

Event 1/18/2017

1-317 RED014 UO, 18"–36"

1-318 RED015 UO, 18"–36"

1-320 RED017A UO, 18"–36"

1-321 RED023 UO, 18"–36"

1-322 RED028 CO

1-323 RED028-ORW ORW

1-324 RED027 UO, 18"–36"

1-336 RED018A UO, 18"–36"


• The target number of storm events (three) for coupled outfalls was successfully

captured.


Tables 2.14a through 2.15c present the monitoring results for the No. CA RMG sites. The data tables do not include any QA/QC results. Both the original value and any QA/QC values, including field duplicates, are provided in Appendix A.


22


Table 2.14a. Results for ASBS 05 UOs (18"–36")

1-325 1-326 1-327 1-328 1-329 1-330

SAU019A SAU020A SAU015 SAU014 SAU013A SAU011A

Event Event Event Event Event Event

Units 11/19/2016 11/19/2016 11/19/2016 11/19/2016 11/19/2016 11/19/2016

Field Measurements 1

pH pH Units 7.89 8.00 8.12 7.85 7.96 8.07

Specific Conductivity µS/cm 68 47 66 173 57 91

Temperature oC 12.81 12.48 12.65 11.97 12.41 12.18

Conventionals

Total Suspended Solids mg/L 170.1 190 6 11.5 12.6 35.8

Oil & Grease mg/L ND ND ND ND ND ND

Seasonal Runoff Volume Estimate

Runoff Volume ft3 8,523 49,435 14,916 33,525 13,353 22,303

Constituent

23

Table 2.14a. (cont'd)

1-334 1-335 1-337

SAU009A SAU006A SAU016A

Event Event Event

Units 11/19/2016 11/19/2016 11/19/2016


pH pH Units 7.97 8.01 8.03

Specific Conductivity µS/cm 110 82 71

Temperature oC 12.3 12.15 12.52

Conventionals

Total Suspended Solids mg/L 36.1 33.3 52.4

Oil & Grease mg/L ND ND ND


Runoff Volume ft3 23,297 24,575 21,450

Constituent

24

Table 2.14b. Results for ASBS Site 1-331 (SAU008, CO)

Event Event Event

Units 10/14/2016 11/19/2016 12/10/2016


pH pH Units 6.73 6.84 8.34

Specific Conductivity µS/cm 276 291 30.1


Conventionals

Total Orthophosphate as P mg/L 0.05 0.05 ND



Ammonia as N mg/L 0.06 0.05 0.03

Nitrate as N mg/L 0.05 0.04 0.09

Elements

Arsenic, total µg/L 0.014 ND 0.027

Cadmium, total µg/L 0.0103 ND ND

Chromium, total µg/L 0.6307 0.8428 0.0872

Copper, total µg/L 4.245 1.906 1.577

Lead, total µg/L 0.2988 0.4592 0.0482

Mercury µg/L 0.00255 0.00032 0.0018

Nickel, total µg/L 1.0114 1.0792 0.333

Selenium, total µg/L 0.019 0.019 0.025

Silver, total µg/L ND ND ND

Zinc, total µg/L 12.9391 11.2975 8.6949


Runoff Volume ft3

Constituent

35,087

25


26

Table 2.14c. Results for ASBS Site 1-338 (SAU012-ORW)

Units Pre Post Pre Post Pre Post

Field Measurements

pH pH Units 8.09 7.96 8.09 7.84 7.56 7.58

Salinity ppt 32.8 32.2 34.4 32.6 33.3 24.5

Specific Conductivity µS/cm 37,900 37,500 40,400 37,900 36,645 29,803

Temperature oC 12.2 12.38 12.9 12.4 10.2 13.1

Conventionals

Total Orthophosphate as P mg/L 0.06 0.06 0.07 0.06 0.09 0.06

Total Suspended Solids mg/L 42.7 80.3 17.1 37.7 18.3 16.2


Ammonia as N mg/L 0.03 0.06 0.02 ND ND 0.04

Nitrate as N mg/L 0.17 0.16 0.21 0.14 0.51 0.41

Elements

Arsenic, total µg/L 1.598 1.494 1.915 2.076 2.128 1.436

Cadmium, total µg/L 0.0675 0.0852 0.0452 0.0243 0.0704 0.0368

Chromium, total µg/L 0.55 1.1702 0.9568 0.3468 1.1476 1.0301

Copper, total µg/L 0.259 0.617 0.575 0.233 0.589 0.73

Lead, total µg/L 0.0541 0.1844 0.1306 0.0214 0.1372 0.1735

Mercury µg/L ND 0.00079 0.00032 0.00246 0.00013 0.00202

Nickel, total µg/L 0.6595 1.4513 1.2394 0.467 1.223 1.0358

Selenium, total µg/L 0.025 0.049 0.066 0.041 0.053 0.021

Silver, total µg/L ND ND 0.01 0.04 ND ND

Zinc, total µg/L ND 0.7889 1.4486 0.4119 1.5122 1.7802

Event

Constituent

Event Event

10/14/2016 11/19/2016 12/10/2016

27

Table 14.a, b, c. (cont’d) Acronyms & Abbreviations:

CO = Coupled Outfall ND = Non-detect ORW = Ocean Receiving Water Site P/F = Pass/Fail UO = Uncoupled Outfall

Notes: 1. Salinity measurements are only reported for the ORW sites in the No. CA RMG area. In general, salinity measurements are not taken at outfall locations.

However, field crews inadvertently took a salinity measurement at CO Site 1-331 (SAU008). This salinity value is not presented in the data table but is provided in Appendix A.

28


1-317 1-318 1-320 1-321 1-324 1-336

RED014 RED015 RED017A RED023 RED027 RED018A


Units 10/13/2016 10/13/2016 10/13/2016 10/13/2016 10/13/2016 10/13/2016


pH pH Units 7.07 7.09 7.10 7.06 7.67 7.07

Specific Conductivity µS/cm 12.0 15.6 8.0 24.0 10 8.0

Temperature oC 15.0 15.5 16.2 16.0 16.3 16.0

Conventionals


Oil & Grease mg/L 1 1 ND ND 1.3 3.3

Toxicity

Urchin P/F Pass Pass Pass Pass Pass Pass


Runoff Volume ft3 43,379 118,307 102,532 516,606 70,984 63,097

Constituent

29

Thispagehasbeenintentionallyleftblanktofacilitatedouble‐sidedprinting.

30

Table 2.15b. Results for ASBS Site 1-322 (RED028, CO)

Event Event Event

Units 10/13/2016 1/10/2017 1/18/2017


pH pH Units 8.53 8.4 9.01



Conventionals

Total Orthophosphate as P mg/L 0.06 0.01 0.09





Elements

Arsenic, total µg/L 1.188 0.368 0.245

Cadmium, total µg/L 0.0301 0.0336 0.04


Copper, total µg/L 5.519 4.699 4.412

Lead, total µg/L 2.5387 2.9072 3.3183

Mercury µg/L 0.0168 0.0099 0.0088

Nickel, total µg/L 6.9926 7.2889 7.0847



Zinc, total µg/L 19.5436 15.8789 13.0955

Toxicity

Urchin P/F Pass Pass Pass

Organophosphorus Pesticides

Chlorpyrifos ng/L ND ND ND

Diazinon ng/L ND ND ND

Dimethoate ng/L ND ND ND

Disulfoton ng/L ND ND ND

Malathion ng/L ND ND ND

Methidathion ng/L ND ND ND

Methyl Parathion ng/L ND ND ND

Constituent

31

Table 2.15b. (cont'd)

Event Event Event

Units 10/13/2016 1/10/2017 1/18/2017Constituent

Phorate ng/L ND ND ND

Phosmet ng/L ND ND ND

Polynuclear Aromatic Hydrocarbons

Acenaphthene ng/L ND ND ND

Acenaphthylene ng/L ND ND ND

Anthracene ng/L ND ND ND

Benz(a)anthracene ng/L ND ND ND

Benzo(a)pyrene ng/L ND ND ND

Benzo(b)fluoranthene ng/L 7.3 ND ND

Benzo(e)pyrene ng/L ND ND ND

Benzo(g,h,i)perylene ng/L 9.7 ND ND

Benzo(k)fluoranthene ng/L ND ND ND

Biphenyl ng/L ND ND 1.2

Chrysene ng/L ND ND ND

Dibenz(a,h)anthracene ng/L ND ND ND

Dibenzothiophene ng/L ND ND ND

Dimethylnaphthalene, 2,6- ng/L ND 1.8 1.5

Fluoranthene ng/L 3.7 2.4 2.4

Fluorene ng/L ND ND 1.1

Indeno(1,2,3-c,d)pyrene ng/L 4.7 ND ND

Methylnaphthalene, 1- ng/L ND 1.4 1.3

Methylnaphthalene, 2- ng/L 1.5 1.5 2.4

Methylphenanthrene, 1- ng/L ND 1.2 ND

Naphthalene ng/L 1.9 1.1 2.5

Perylene ng/L 5.5 ND ND

Phenanthrene ng/L 3.8 3.1 4.2

Pyrene ng/L 4.9 4.4 4.2

Trimethylnaphthalene, 2,3,5- ng/L ND ND ND

Pyrethroid Pesticides

Bifenthrin ng/L ND ND ND

Cyfluthrin ng/L ND ND ND

32


Event Event Event


Cypermethrin, total ng/L ND ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND ND

Esfenvalerate ng/L ND ND ND

Fenvalerate ng/L ND ND ND

Fenpropathrin ng/L ND ND ND

lamda-Cyhalothrin, total ng/L ND ND ND

cis-Permethrin, total ng/L ND ND ND

trans-Permethrin ng/L ND ND ND


Runoff Volume ft3 433,791

33


34

Table 2.15c. Results for ASBS Site 1-323 (RED028-ORW)



pH pH Units 6.64 7.02 7.92 7.99 7.98 7.92

Salinity ppt 33.4 31.58 29.4 27.4 26.9 28.1

Specific Conductivity µS/cm 44,450 48,240 44,520 42,829 41,145 43,785

Temperature oC 13.2 13.7 9.1 10.3 9.6 10.5

Conventionals

Total Orthophosphate as P mg/L 0.06 0.08 0.01 ND 0.04 0.04



Ammonia as N mg/L 0.08 0.23 0.12 ND ND 0.18

Nitrate as N mg/L 0.22 0.24 0.22 0.22 0.19 0.12

Elements




Copper, total µg/L 0.622 3.021 0.359 3.873 1.667 1.636

Lead, total µg/L 0.1049 0.7133 0.054 0.7489 0.2923 0.3235

Mercury µg/L 0.00044 0.00607 ND 0.0095 0.00186 0.00281

Nickel, total µg/L 1.5911 6.0295 0.9965 10.1949 4.2982 5.0946


Silver, total µg/L ND ND ND ND ND 0.01

Zinc, total µg/L 0.8278 3.6688 1.1116 6.443 2.4049 2.8395

Event

Constituent

Event Event

10/13/2016 1/18/20171/10/2017

35

Table 2.15c. (cont'd)


Event

Constituent

Event Event

10/13/2016 1/18/20171/10/2017

Toxicity

Urchin P/F NA Pass NA Pass NA Pass

Kelp - Germination P/F NA Pass NA Pass NA Pass

Kelp - Growth P/F NA Pass NA Pass NA Pass

Mussel P/F NA Pass NA Pass NA Pass


Chlorpyrifos ng/L ND ND ND ND ND ND

Diazinon ng/L ND ND ND ND ND ND

Dimethoate ng/L ND ND ND ND ND ND

Disulfoton ng/L ND ND ND ND ND ND

Malathion ng/L ND ND ND ND ND ND

Methidathion ng/L ND ND ND ND ND ND

Methyl Parathion ng/L ND ND ND ND ND ND

Phorate ng/L ND ND ND ND ND ND

Phosmet ng/L ND ND ND ND ND ND


Acenaphthene ng/L ND ND ND ND ND ND

Acenaphthylene ng/L ND ND ND ND ND ND

Anthracene ng/L ND ND ND ND ND ND

Benz(a)anthracene ng/L ND ND ND ND ND ND

Benzo(a)pyrene ng/L ND ND ND ND ND ND

Benzo(b)fluoranthene ng/L ND ND ND ND ND ND

36



Event

Constituent

Event Event

10/13/2016 1/18/20171/10/2017

Benzo(e)pyrene ng/L ND ND ND ND ND ND

Benzo(g,h,i)perylene ng/L ND 7.4 ND ND ND ND

Benzo(k)fluoranthene ng/L ND ND ND ND ND ND

Biphenyl ng/L ND ND ND 1 ND 1.1

Chrysene ng/L ND ND ND ND ND ND

Dibenz(a,h)anthracene ng/L ND ND ND ND ND ND

Dibenzothiophene ng/L ND ND ND ND ND ND

Dimethylnaphthalene, 2,6- ng/L 1.1 2.1 ND 2.5 ND 1.7

Fluoranthene ng/L ND 70.4 ND 1.1 ND ND

Fluorene ng/L ND ND ND 1.6 ND 1.1

Indeno(1,2,3-c,d)pyrene ng/L ND ND ND ND ND ND

Methylnaphthalene, 1- ng/L ND ND ND 2.6 1 1.6

Methylnaphthalene, 2- ng/L ND 1 ND 2.2 1.7 3.1

Methylphenanthrene, 1- ng/L ND ND ND ND ND ND

Naphthalene ng/L 1.3 1.6 1 3.3 1.6 2.8

Perylene ng/L ND ND ND ND ND ND

Phenanthrene ng/L ND 1.3 ND 3 1.5 2.5

Pyrene ng/L ND 1.8 ND 1.4 ND ND

Trimethylnaphthalene, 2,3,5- ng/L ND ND ND ND ND ND


Bifenthrin ng/L ND ND ND ND ND ND

Cyfluthrin ng/L ND ND ND ND ND ND

37



Event

Constituent

Event Event

10/13/2016 1/18/20171/10/2017

Cypermethrin, total ng/L ND ND ND ND ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND ND ND ND ND

Esfenvalerate ng/L ND ND ND ND ND ND

Fenvalerate ng/L ND ND ND ND ND ND

Fenpropathrin ng/L ND ND ND ND ND ND

lamda-Cyhalothrin, total ng/L ND ND ND ND ND ND

cis-Permethrin, total ng/L ND ND ND ND ND ND

trans-Permethrin ng/L ND ND ND ND ND ND

38

Table 2.15a, b, c. (cont’d) Acronyms & Abbreviations:


Notes: 1. Salinity measurements are only reported for the ORW sites in the No. CA RMG area. In general, salinity measurements are not taken at outfall locations.

However, field crews inadvertently took salinity measurements at all ASBS 08 outfall sites. These salinity values are not presented in the data tables but are provided in Appendix A.

2. The field conductivity meter used at Site 1-323 (RED028-ORW) for the 10-14-2016 storm event (SE #1)had been improperly calibrated. The values presented in the data table are one-half the values shown on the conductivity meter.

39


40


41

2.2.4 Central California RMG ASBS Sites Tables 2.16 through 2.18 summarize the storm event sampling conducted at the Ce. Coast RMG sites during the 2016–17 wet season. Additional site information is provided in Appendix C. Table 2.16. Caltrans Monitoring Sites in ASBS 09

Site ID

Site Name

Monitoring Type1

Event 1/18/2017

Event 2/17/2017

Event 4/6/2017

4-341 FIT012 CO

4-342 FIT012-ORW ORW



captured.

• There are no uncoupled outfalls in ASBS 09.


42


Site Name

Monitoring Type1

Event 12/8/2016

Event 12/15/2016

Event 1/18/2017

4-343 ANO001 UO, 18”–36”

4-344 ANO030 UO, 18”–36”

4-345 ANO033 CO

4-346 ANO033-ORW ORW

4-348 ANO035 UO, 18”–36”

4-353 ANO002 UO, 18”–36”



captured.



43

Table2.18.CaltransMonitoringSitesinASBS34Site ID

Site Name

Monitoring Type1

Event 2/17/2017

Event 4/7/2017

5‐303 CAR006 UO, 18”–36”

5‐304 CAR007B CO

5‐305 CAR007B‐ORW ORW

A summary of the ASBS 34 wet season is provided below: Only two of the targeted three storm events for the ORW site were successfully

captured.

Only two of the targeted three storm events for the coupled outfall were successfully captured.

The target number of storm events (one) for uncoupled outfalls was successfully captured.

The targeted number of storm events was not met primarily due to not enough storm events meeting the mobilization criteria discussed in Section 2.2.2. Even though the targeted number of storm events for the wet season was not met, the cumulative number of storm events captured reached six. Therefore, no make‐up storm events are planned. Tables 2.19a through 2.21c present the monitoring results for the Ce. Coast RMG sites. The data tables do not include any QA/QC results. Both the original value and any QA/QC values, including field duplicates, are provided in Appendix A.


44


Table 2.19a. Results for ASBS Site 4-341 (FIT012, CO)

Event Event Event

Units 1/18/2017 2/17/2017 4/6/2017


pH pH Units 7.83 7.88 8.87


Temperature oC 11 13 12.55

Conventionals

Total Suspended Solids mg/L 6 5 122

Oil & Grease mg/L 3 ND 4

Ammonia as N mg/L ND ND 0.08

Nitrate as N mg/L ND ND 0.2

Urea mg/L 0.01 0.014 0.153

Elements




Copper, total µg/L 9.277 7.629 33.03

Lead, total µg/L 1.2977 1.8479 5.8545

Mercury µg/L 0.00662 0.00477 0.0125

Nickel, total µg/L 1.6469 1.4477 7.9175


Silver, total µg/L ND ND 0.03

Zinc, total µg/L 17.5806 19.1929 130.5324

Toxicity

Urchin P/F Pass Pass Fail



Chlorpyrifos methyl ng/L ND ND ND


Dichlofenthion ng/L ND ND ND

Ethion ng/L ND ND ND

Ethoprop (Prophos) ng/L ND ND ND

Ethyl Parathion ng/L ND ND ND

Constituent

45


Event Event Event


Fenchlorphos (Ronnel) ng/L ND ND ND

Fenitrothion ng/L ND ND ND

Fonofos (Dyfonate) ng/L ND ND ND



Sulfotep ng/L ND ND ND

Thionazin (Thionzin) ng/L ND ND ND

Tokuthion (Prothiofos) ng/L ND ND ND

Trichloronate ng/L ND ND ND




Anthracene ng/L ND ND 12

Benz(a)anthracene ng/L ND ND 74

Benzo(a)pyrene ng/L ND ND 100

Benzo(b)fluoranthene ng/L ND ND 172

Benzo(e)pyrene ng/L 4 5 110

Benzo(g,h,i)perylene ng/L 5 7 111

Benzo(k)fluoranthene ng/L ND ND 59

Biphenyl ng/L ND ND 6

Chrysene ng/L ND ND 125

Dibenz(a,h)anthracene ng/L ND ND 21

Dibenzothiophene ng/L ND ND 22

Dimethylnaphthalene, 2,6- ng/L ND ND 5

Fluoranthene ng/L ND 6 284

Fluorene ng/L ND ND ND

Indeno(1,2,3-c,d)pyrene ng/L ND ND 100

Methylnaphthalene, 1- ng/L ND ND ND


Methylphenanthrene, 1- ng/L ND ND 12

Naphthalene ng/L ND ND 5

46


Event Event Event


Perylene ng/L ND ND 31

Phenanthrene ng/L ND ND 90

Pyrene ng/L 6 9 244



Bifenthrin ng/L ND ND ND

Cyfluthrin ng/L ND ND 22


Deltamethrin/Tralomethrin, total ng/L ND ND 46

Esfenvalerate/Fenvalerate, total ng/L ND ND ND

Fenpropathrin ng/L ND ND ND


cis-Permethrin, total ng/L ND ND 2

trans-Permethrin ng/L ND ND 3



47


48

Table 2.19b. Results for ASBS Site 4-342 (FIT012-ORW)


Field Measurements

pH pH Units 8 8 7.87 8.1 7.7 6.97

Salinity ppt 34.3 32.5 33.65 30.6 30.13 28.14


Temperature oC 11.9 11.6 13.87 13.3 11.95 10.8

Conventionals

Total Suspended Solids mg/L 18 18 49 40 46 23

Oil & Grease mg/L 2 2 2 ND ND ND

Ammonia as N mg/L ND ND ND ND ND ND

Nitrate as N mg/L ND ND ND ND 0.3 0.3

Urea mg/L ND ND 0.011 ND 0.018 ND

Elements

Arsenic, total µg/L 1.725 1.699 1.84 1.83 1.483 ND



Copper, total µg/L 0.531 1.052 1.017 1.143 2.475 23.38

Lead, total µg/L 0.2015 0.3351 0.4756 0.3794 0.3571 3.4786

Mercury µg/L 0.00164 0.00229 0.00229 0.00226 0.0026 ND

Nickel, total µg/L 1.1729 1.4783 2.0338 1.7288 1.9041 5.284


Silver, total µg/L 0.04 0.02 ND ND 0.09 0.02

Zinc, total µg/L 1.6964 4.1838 3.8971 3.4658 3.4331 79.927

Constituent

Event Event Event

4/6/20172/17/20171/18/2017

49


Units Pre Post Pre Post Pre PostConstituent

Event Event Event

4/6/20172/17/20171/18/2017

Toxicity


Kelp - Germination P/F Pass Pass Pass Pass Pass Pass

Kelp - Growth P/F Pass Pass Pass Pass Pass Pass

Mussel - Normal Development P/F Pass Fail Pass Fail Fail Pass

Mussel - Survival P/F Pass Pass Pass Pass Pass Pass



Chlorpyrifos methyl ng/L ND ND ND ND ND ND


Dichlofenthion ng/L ND ND ND ND ND ND

Ethion ng/L ND ND ND ND ND ND

Fenchlorphos (Ronnel) ng/L ND ND ND ND ND ND

Fenitrothion ng/L ND ND ND ND ND ND

Fonofos (Dyfonate) ng/L ND ND ND ND ND ND


Ethyl Parathion ng/L ND ND ND ND ND ND


Ethoprop (Prophos) ng/L ND ND ND ND ND ND

Sulfotep ng/L ND ND ND ND ND ND

Thionazin (Thionzin) ng/L ND ND ND ND ND ND

Tokuthion (Prothiofos) ng/L ND ND ND ND ND ND

50



Event Event Event

4/6/20172/17/20171/18/2017

Trichloronate ng/L ND ND ND ND ND ND









Benzo(g,h,i)perylene ng/L ND ND ND ND ND ND


Biphenyl ng/L ND ND ND ND ND ND




Dimethylnaphthalene, 2,6- ng/L ND ND ND ND ND ND

Fluoranthene ng/L ND ND ND ND ND ND

Fluorene ng/L ND ND ND ND ND ND


Methylnaphthalene, 1- ng/L ND ND ND ND ND ND



51



Event Event Event

4/6/20172/17/20171/18/2017

Naphthalene ng/L ND ND ND ND ND ND

Perylene ng/L ND ND 3.2 4 ND ND

Phenanthrene ng/L ND ND ND ND 4 ND

Pyrene ng/L ND ND ND ND ND ND




Cyfluthrin ng/L ND ND ND ND ND ND

Cypermethrin, total ng/L ND ND ND ND ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND ND ND ND ND

Esfenvalerate/Fenvalerate, total ng/L ND ND ND ND ND ND

Fenpropathrin ng/L ND ND ND ND ND ND




52

Table 2.19a, b. (cont’d) Acronyms & Abbreviations:


Notes: 1. Salinity measurements are only reported for the ORW sites in the Ce. Coast RMG area. In general, salinity measurements are not taken at outfall locations.

However, field crews inadvertently took a salinity measurement at CO Site 4-341 (FIT012). This salinity value is not presented in the data table but is provided in Appendix A.

53


54


4-343 4-344 4-348 4-353

ANO001 ANO030 ANO035 ANO002

Event Event Event Event

Units 12/15/2016 12/15/2016 12/15/2016 12/15/2016


pH pH Units 7.85 8.1 8.4 7.86

Specific Conductivity µS/cm 52 150 50 52

Temperature oC 13.84 13.5 13.1 13.8

Conventionals

Total Suspended Solids mg/L 31 51 26 32

Oil & Grease mg/L ND ND 5 3

Bacteria

Fecal Coliform MPN/100mL 385 220 181 349

Enterococcus MPN/100mL 557 1672 2602 83

Toxicity

Urchin P/F Pass Pass Pass Pass


Runoff Volume ft3 152,862 49,415 45,614 18,463

Constituent

55


56

Table 2.20b. Results for ASBS Site 4-345 (ANO033, CO)

Event Event Event

Units 12/8/2016 12/15/2016 1/18/2017

Bacteria

Fecal Coliform MPN/100mL 1600 2549 17

Enterococcus MPN/100mL ND 39726 52


pH pH Units 7.6 7.1 7.4



Conventionals



Ammonia as N mg/L ND ND ND

Nitrate as N mg/L 0.6 0.4 ND

Urea mg/L 0.043 0.027 0.016

Elements




Copper, total µg/L 10.685 7.189 5.596

Lead, total µg/L 0.7323 1.6703 1.1962

Mercury µg/L 0.0147 0.0129 0.00711

Nickel, total µg/L 2.2312 3.1907 5.0205



Zinc, total µg/L 6.2157 11.8206 12.6411

Toxicity

Urchin P/F Pass Pass Pass



Chlorpyrifos methyl ng/L ND ND ND


Dichlofenthion ng/L ND ND ND

Constituent

57


Event Event Event


Ethion ng/L ND ND ND

Fenchlorphos (Ronnel) ng/L ND ND ND

Fenitrothion ng/L ND ND ND

Fonofos (Dyfonate) ng/L ND ND ND


Ethyl Parathion ng/L ND ND ND


Ethoprop (Prophos) ng/L ND ND ND

Sulfotep ng/L ND ND ND

Thionazin (Thionzin) ng/L ND ND ND

Tokuthion (Prothiofos) ng/L ND ND ND

Trichloronate ng/L ND ND ND







Benzo(b)fluoranthene ng/L ND ND ND

Benzo(e)pyrene ng/L ND ND ND

Benzo(g,h,i)perylene ng/L ND ND ND


Biphenyl ng/L ND ND ND



Dibenzothiophene ng/L ND ND ND

Dimethylnaphthalene, 2,6- ng/L ND ND 7

Fluoranthene ng/L ND ND ND


Indeno(1,2,3-c,d)pyrene ng/L ND ND ND


58


Event Event Event



Methylphenanthrene, 1- ng/L ND ND ND

Naphthalene ng/L ND ND ND

Perylene ng/L ND ND ND

Phenanthrene ng/L ND ND ND

Pyrene ng/L ND ND ND




59


60

Table 2.20c. Results for ASBS Site 4-346 (ANO033-ORW)


Bacteria

Fecal Coliform MPN/100mL 2 900 2 327 2 2

Enterococcus MPN/100mL 10 2254 10 4711 10 31


pH pH Units 8 7.8 7.9 7.55 7.67 8.1

Salinity ppt 30.6 35 34.9 30.75 33.42 30.5


Temperature oC 13.7 11.6 12.9 12.8 12.34 11.76

Conventionals

Total Suspended Solids mg/L 7 32 33 213 26 18

Oil & Grease mg/L ND 2 ND 3 3 ND

Ammonia as N mg/L ND ND ND ND ND ND

Nitrate as N mg/L 0.2 0.4 0.2 0.3 ND ND

Urea mg/L ND ND ND 0.014 ND ND

Elements




Copper, total µg/L 0.184 0.491 0.324 1.87 0.414 2.904

Lead, total µg/L 0.0435 0.0976 0.1113 1.0087 0.0818 4.0504

Mercury µg/L 0.000745 0.00117 0.00385 0.00634 0.00759 0.00196

Nickel, total µg/L 0.5745 0.8762 1.0852 3.3874 0.9314 10.9272

Constituent

Event Event Event

1/18/201712/15/201612/8/2016

61



Event Event Event

1/18/201712/15/201612/8/2016


Silver, total µg/L ND ND ND ND 0.04 0.56

Zinc, total µg/L 0.5355 1.4366 2.3944 5.4686 0.9753 20.2078

Toxicity



Kelp - Growth P/F Pass Pass Pass Pass Pass Pass

Mussel - Normal Development P/F Pass Pass Pass Pass Pass Pass

Mussel - Survival P/F Pass Pass Pass Pass Pass Pass



Chlorpyrifos methyl ng/L ND ND ND ND ND ND


Dichlofenthion ng/L ND ND ND ND ND ND

Ethion ng/L ND ND ND ND ND ND

Fenchlorphos (Ronnel) ng/L ND ND ND ND ND ND

Fenitrothion ng/L ND ND ND ND ND ND

Fonofos (Dyfonate) ng/L ND ND ND ND ND ND


Ethyl Parathion ng/L ND ND ND ND ND ND


Ethoprop (Prophos) ng/L ND ND ND ND ND ND

62



Event Event Event

1/18/201712/15/201612/8/2016

Sulfotep ng/L ND ND ND ND ND ND

Thionazin (Thionzin) ng/L ND ND ND ND ND ND

Tokuthion (Prothiofos) ng/L ND ND ND ND ND ND

Trichloronate ng/L ND ND ND ND ND ND














Dibenzothiophene ng/L ND ND ND 5 ND ND

Dimethylnaphthalene, 2,6- ng/L ND ND ND ND ND ND

Fluoranthene ng/L ND ND ND ND ND ND



63



Event Event Event

1/18/201712/15/201612/8/2016




Naphthalene ng/L ND ND ND ND ND ND

Perylene ng/L ND 4 8 ND 8 4

Phenanthrene ng/L ND ND ND ND ND ND

Pyrene ng/L ND ND ND ND ND ND


64



Notes: 1. Salinity measurements are only reported for the ORW sites in the Ce. Coast RMG area. In general, salinity measurements are not taken at outfall locations. 2. The specific conductivity value for Site 4-346 (ANO033-ORW) was not measured in the field pre-storm for 12-08-2016 storm event (SE #1). The field crews

did not have a field meter that could measure the value. The specific conductivity value reported in the table is a calculation based on salinity and temperature.

65


66

Table 2.21a. Results for ASBS Site 5-303 (CAR006, UO)

Event

Units 2/17/2017

Bacteria

Fecal Coliform MPN/100mL 1600

Enterococcus MPN/100mL 24196


pH pH Units 7.34

Specific Conductivity µS/cm 120

Temperature oC 12.1

Conventionals

Total Suspended Solids mg/L 181

Oil & Grease mg/L 3

Toxicity

Urchin P/F Pass



Constituent

67


68

Table 2.21b. Results for ASBS Site 5-304 (CAR007B, CO)

Event Event

Units 2/17/2017 4/7/2017

Bacteria

Fecal Coliform MPN/100mL 1600 98

Enterococcus MPN/100mL 3654 213


pH pH Units 7.12 7.6

Specific Conductivity µS/cm 240 140

Temperature oC 12.2 13.74

Conventionals

Dissolved Orthophosphate as P mg/L 0.04 0.1

Total Suspended Solids mg/L 99 88

Oil & Grease mg/L ND 4

Ammonia as N mg/L ND ND

Nitrate as N mg/L ND 0.3

Urea mg/L 0.012 0.019

Elements

Arsenic, total µg/L 0.164 ND

Cadmium, total µg/L 0.0578 0.2082

Chromium, total µg/L 1.8754 3.901

Copper, total µg/L 15.501 41.142

Lead, total µg/L 8.4012 65.1268

Mercury µg/L 0.00139 0.00387

Nickel, total µg/L 3.0216 4.4085

Selenium, total µg/L 0.053 0.156

Silver, total µg/L ND 0.03

Zinc, total µg/L 30.0403 74.6328

Toxicity

Urchin P/F Pass Pass


Chlorpyrifos ng/L ND ND

Chlorpyrifos methyl ng/L ND ND

Diazinon ng/L ND ND

Constituent

69


Event Event

Units 2/17/2017 4/7/2017Constituent

Dichlofenthion ng/L ND ND

Ethion ng/L ND ND

Fenchlorphos (Ronnel) ng/L ND ND

Fenitrothion ng/L ND ND

Fonofos (Dyfonate) ng/L ND ND

Malathion ng/L ND ND

Ethyl Parathion ng/L ND ND

Methyl Parathion ng/L ND ND

Ethoprop (Prophos) ng/L ND ND

Sulfotep ng/L ND ND

Thionazin (Thionzin) ng/L ND ND

Tokuthion (Prothiofos) ng/L ND ND

Trichloronate ng/L ND ND


Acenaphthene ng/L ND ND

Acenaphthylene ng/L ND ND

Anthracene ng/L ND ND

Benz(a)anthracene ng/L ND 4

Benzo(a)pyrene ng/L ND ND

Benzo(b)fluoranthene ng/L 5 ND

Benzo(e)pyrene ng/L 9 10

Benzo(g,h,i)perylene ng/L 13 11

Benzo(k)fluoranthene ng/L ND ND

Biphenyl ng/L ND ND

Chrysene ng/L 5 6

Dibenz(a,h)anthracene ng/L ND ND

Dibenzothiophene ng/L 4 7

Dimethylnaphthalene, 2,6- ng/L 7 ND

Fluoranthene ng/L 12 12

Fluorene ng/L ND ND

Indeno(1,2,3-c,d)pyrene ng/L ND ND

70


Event Event


Methylnaphthalene, 1- ng/L ND ND

Methylnaphthalene, 2- ng/L ND ND

Methylphenanthrene, 1- ng/L ND ND

Naphthalene ng/L ND ND

Perylene ng/L 4 5

Phenanthrene ng/L 7 8

Pyrene ng/L 20 14

Trimethylnaphthalene, 2,3,5- ng/L ND ND

Pyrethroids

Bifenthrin ng/L ND ND

Cyfluthrin ng/L ND ND

Cypermethrin, total ng/L ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND

Esfenvalerate/Fenvalerate, total ng/L ND ND

Fenpropathrin ng/L ND ND

lamda-Cyhalothrin, total ng/L ND ND

cis-Permethrin, total ng/L ND ND

trans-Permethrin ng/L ND ND



71


72

Table 2.21c. Results for ASBS Site 5-305 (CAR007B-ORW)

Units Pre Post Pre Post

Bacteria


Enterococcus MPN/100mL 30 20 10 10


pH pH Units 8.24 8.19 8.17 7.05

Salinity ppt 27.8 20.8 32.4 24.1

Specific Conductivity µS/cm 34000 25800 36900 29000

Temperature oC 13.8 13.4 11.5 12.25

Conventionals

Dissolved Orthophosphate as P mg/L 0.04 0.1 0.06 0.07

Total Suspended Solids mg/L 4 38 10 14

Oil & Grease mg/L ND ND ND ND

Ammonia as N mg/L ND ND ND ND

Nitrate as N mg/L ND 0.3 0.3 0.2

Urea mg/L 0.051 ND ND ND

Elements

Arsenic, total µg/L 1.255 0.323 1.082 0.455

Cadmium, total µg/L 0.0518 0.2139 0.077 0.1418

Chromium, total µg/L 0.2655 0.6026 0.3307 0.2808

Copper, total µg/L 0.156 0.729 0.105 0.317

Lead, total µg/L 0.0549 0.4579 0.0546 0.1434

Mercury µg/L 0.000884 0.00609 0.0004 0.00201

Nickel, total µg/L 0.3431 1.0194 0.3773 0.6072

Selenium, total µg/L 0.011 0.066 0.028 0.045

Silver, total µg/L ND ND 0.08 0.05

Zinc, total µg/L 0.695 5.641 0.7399 5.6332

Toxicity

Urchin P/F Pass Pass Pass Pass

Kelp - Germination P/F Pass Pass Pass Pass

Kelp - Growth P/F Pass Pass Pass Pass

Mussel - Normal Development P/F Pass Pass Pass Pass

Constituent

Event Event

2/17/2017 4/7/2017

73


Units Pre Post Pre PostConstituent

Event Event

2/17/2017 4/7/2017

Mussel - Survival P/F Pass Pass Pass Pass


Chlorpyrifos ng/L ND ND ND ND

Chlorpyrifos methyl ng/L ND ND ND ND

Diazinon ng/L ND ND ND ND

Dichlofenthion ng/L ND ND ND ND

Ethion ng/L ND ND ND ND

Fenchlorphos (Ronnel) ng/L ND ND ND ND

Fenitrothion ng/L ND ND ND ND

Fonofos (Dyfonate) ng/L ND ND ND ND

Malathion ng/L ND ND ND ND

Ethyl Parathion ng/L ND ND ND ND

Methyl Parathion ng/L ND ND ND ND

Ethoprop (Prophos) ng/L ND ND ND ND

Sulfotep ng/L ND ND ND ND

Thionazin (Thionzin) ng/L ND ND ND ND

Tokuthion (Prothiofos) ng/L ND ND ND ND

Trichloronate ng/L ND ND ND ND


Acenaphthene ng/L ND ND ND ND

Acenaphthylene ng/L ND ND ND ND

Anthracene ng/L ND ND ND ND

Benz(a)anthracene ng/L ND ND ND ND

Benzo(a)pyrene ng/L ND ND ND ND

Benzo(b)fluoranthene ng/L ND ND ND ND

Benzo(e)pyrene ng/L ND ND ND ND

Benzo(g,h,i)perylene ng/L ND ND ND ND

Benzo(k)fluoranthene ng/L ND ND ND ND

Biphenyl ng/L ND ND ND ND

Chrysene ng/L ND ND ND ND

Dibenz(a,h)anthracene ng/L ND ND ND ND

74


Units Pre Post Pre PostConstituent

Event Event

2/17/2017 4/7/2017

Dibenzothiophene ng/L ND ND ND ND

Dimethylnaphthalene, 2,6- ng/L ND ND ND ND

Fluoranthene ng/L ND ND ND ND

Fluorene ng/L ND ND ND ND

Indeno(1,2,3-c,d)pyrene ng/L ND ND ND ND

Methylnaphthalene, 1- ng/L ND ND ND ND

Methylnaphthalene, 2- ng/L ND ND ND ND

Methylphenanthrene, 1- ng/L ND ND ND ND

Naphthalene ng/L ND ND ND ND

Perylene ng/L ND ND ND ND

Phenanthrene ng/L ND ND ND ND

Pyrene ng/L ND ND ND ND

Trimethylnaphthalene, 2,3,5- ng/L ND ND ND ND


Bifenthrin ng/L ND ND ND ND

Cyfluthrin ng/L ND ND ND ND

Cypermethrin, total ng/L ND ND ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND ND ND

Esfenvalerate/Fenvalerate, total ng/L ND ND ND ND

Fenpropathrin ng/L ND ND ND ND

lamda-Cyhalothrin, total ng/L ND ND ND ND

cis-Permethrin, total ng/L ND ND ND ND

trans-Permethrin ng/L ND ND ND ND

75



Notes: 1. Salinity measurements are only reported for the ORW sites in the Ce. Coast RMG area. In general, salinity

measurements are not taken at outfall locations. 2. The specific conductivity values reported Site 5-305 (CAR007B-ORW) were not measured in the field but

calculated based on salinities and temperatures.

76


77

2.2.5 Southern California RMG ASBS Sites Tables 2.22 and 2.23 summarize the storm event sampling conducted at the So. CA RMG sites during the 2016–17 wet season. Additional site information is provided in Appendix C. Table 2.22. Caltrans Monitoring Sites in ASBS 24

Site ID

Site Name

Monitoring Type1

Event 1/18/2017

Event 2/10/2017

Event 2/16/2017

7-345 MUG010 CO

7-407 MUG010RW ORW

7-3431 MUG005 UO, 18”–36”

7-346 MUG013 UO, 18”–36”

7-3472 MUG016 UO, <18”

7-348 MUG028 UO, 18”–36”

7-349 MUG031 UO, 18”–36” See Note 3 See Note 3 See Note 3

7-350 MUG041 UO, 18”–36”

7-351 MUG046 UO, <18”

7-352 MUG048 UO, <18”

7-353 MUG049 UO, 18”–36”

7-354 MUG051 UO, 18”–36”

7-355 MUG053 UO, 18”–36”

7-356 MUG058 UO, <18”

7-357 MUG059 UO, 18”–36”

7-358 MUG061 UO, <18”

7-359 MUG066 UO, 18”–36”

7-360 MUG070 UO, <18”

7-361 MUG073 UO, <18”

7-362 MUG077 UO, <18”

7-363 MUG078 UO, <18”

7-364 MUG135 UO, 18”–36”

7-365 MUG147 UO, <18”

7-366 MUG150 UO, <18”

7-367 MUG187 UO, <18”

7-368 MUG283 UO, >36”


78

Table2.22.(cont’d)Site ID

Site Name

Monitoring Type1

Event 1/18/2017

Event 2/10/2017

Event 2/16/2017

7‐370 MUG346 UO, <18”

7‐371 MUG355 UO, 18”–36”

7‐372 SAD0950 UO, 18”–36”

7‐373 SAD0960 UO, 18”–36”

7‐374 SAD0970 UO, 18”–36”

7‐375 SAD0980 UO, >36”

7‐376 SAD0990 UO, >36”

7‐377 SAD1000 UO, 18”–36”

7‐378 SAD1040 UO, 18”–36” See Note 4 See Note 4 See Note 4

7‐379 SAD1050 UO, 18”–36”

7‐380 SAD1060 UO, >36”

7‐381 SAD1030 UO, 18”–36”

7‐383 MUG318 UO, 18”–36”

7‐384 ALT004 UO, 18”–36”

7‐385 ALT005 UO, <18”

7‐386 ALT006 UO, <18”

7‐388 ALT008 UO, <18”

7‐389 ALT009 UO, <18”

7‐390 ALT010 UO, <18”

7‐391 ALT011 UO, <18”

7‐393 ALT017 UO, 18”–36”

7‐4005 ALT018 UO, <18” Notes: 1. In previous MRRs, Site 7‐343 (MUG005) was inadvertently marked as an UO that is greater than 36 inches—

the correct size is between 18 inches and 36 inches. 2. Site 7‐347 (MUG016) is an UO. Two storm events were captured at this site, instead of one, due to a

questionable pH result of 1.93 during the first storm event. During that event, field crews did perform a field check of the meter. The meter checked out as functional and calibrated. The meter reconfirmed the low pH value. The site was resampled during the second event. The pH was measured at 7.1 for the second storm event—a value in line with expectations.

3. Site 7‐349 (MUG031) was an active monitoring site until a landside occurred at some point during the 2016–17 wet season but prior to the fist storm event. Site 7‐408 (MUG014) was approved by the Los Angeles Regional Water Board and State Water Board on June 22, 2017 to replace Site 7‐349 (MUG031) for the start of the 2017–18 wet season.


79

Table2.22.(cont’d)4. Site 7‐378 (SAD1014) was an active monitoring site; however, the outfall was buried underneath a sand berm

for all three storm events. 5. Monitoring at Site 7‐344 (MUG008) was halted due to a landslide in March 2015. Site 7‐400 (ALT018) was

tentatively approved by the State Water Board to replace Site 7‐344 (MUG008) for the 2016–17 wet season. However, the Los Angeles Regional Water Board wanted a different site to replace Site 7‐344 (MUG008). Site 7‐387 (ALT007) was approved by the Los Angeles Regional Water Board and State Water Board on June 22, 2017 to replace Site 7‐344 (MUG008) for the start of the 2017–18 wet season. Site 7‐400 (ALT018) was only monitored for the 2016–17 wet season.

A summary of the ASBS 24 wet season is provided below: The target number of storm events (three) for the ORW site was successfully captured.

The target number of storm events (three) for coupled outfalls was successfully

captured.

The target number of storm events (one) for uncoupled outfalls was successfully captured.


80



Site Name

Monitoring Type

Event 11/20/2016

Event 11/26/2016

Event 12/15/2016

Event 12/30/2016

Event 1/5/2017

Event 1/9/2017

12-350 IRV007 CO

12-351 IRV007-ORW ORW

12-352 IRV002 UO, >36”

12-3531 IRV009 UO, >36”

12-354 IRV020 UO, >36”

12-3582 IRV001 UO, 18”–36”

12-3623 IRV009 Upstream Other

12-3634 Muddy Creek Other Notes: 1. Runoff from Site 12-353 (IRV009) was originally attributed to Caltrans (see Permit, Attachment III). During a field investigation at the start of the season,

the pipe that Caltrans originally thought went from the Pacific Coast Highway to Site 12-353 (IRV009) was found to be abandoned. The runoff received at Site 12-353 (IRV009) appears to be exclusively from Crystal Cove State Park.

2. Site 12-358 (IRV001) is an outfall between 18 and 36 inches. Under the modified monitoring approach for 2016–17, only field measurements were taken at this site.

3. Site 12-362 (IRV009 Upstream) is a new site for the 2016–17 wet season. This site is an edge of pavement monitoring location that consists entirely of Caltrans runoff from PCH.

4. Site 12-363 (Muddy Creek) is a new site for the 2016–17 wet season. This site is a monitoring point within Muddy Creek and is upstream from any Caltrans runoff input.

81


82


83

A summary of the ASBS 33 wet season is provided below: • The target number of storm events (six) for the ORW site was successfully captured.

• The target number of storm events (six) for coupled outfalls was successfully captured.

• The target number of storm events (two) for uncoupled outfalls was successfully captured.

Tables 2.24a through 2.25f present the monitoring results for the So. CA RMG sites. The data tables do not include any QA/QC results. Both the original value and any QA/QC values, including field duplicates, are provided in Appendix A.


84



7-343 7-346 7-348 7-350

MUG005 MUG013 MUG028 MUG041


Units 2/16/2017 2/10/2017 1/18/2017 2/10/2017 1/18/2017 2/10/2017

Field Measurements

pH pH Units 9.51 7.76 1.93 7.10 7.55 7.61

Salinity ppt 0.0749 0.7170 0.0062 0.1240 0.0732 0.1660

Specific Conductivity µS/cm 160.7 1444.0 11.0 263.0 155.9 355.0

Temperature oC 14.3 17.5 13.7 15.5 13.9 15.9

Conventionals

Total Suspended Solids mg/L 1095 26.9 60.1 56.4 8.4 362

Oil & Grease mg/L 3.8 4 1.2 2.9 ND 4.8

Toxicity

Urchin P/F Fail Fail Fail Fail Fail Fail


Runoff Volume ft3 45,938 26,950 26,338 42,876

Constituent

7-347

MUG016

23,888

85


7-351 7-352 7-353 7-354 7-355 7-356

MUG046 MUG048 MUG049 MUG051 MUG053 MUG058


Units 1/18/2017 1/18/2017 2/10/2017 2/10/2017 2/10/2017 2/10/2017

Field Measurements

pH pH Units 6.81 6.20 7.42 6.81 8.33 7.24

Salinity ppt 0.0345 0.0080 0.0934 0.0788 0.0906 0.0232


Temperature oC 13.0 13.0 17.4 18.4 18.4 15.8

Conventionals

Total Suspended Solids mg/L 13.8 56.5 23 119.7 147.4 19.9

Oil & Grease mg/L ND ND 1.5 4.2 3.8 2.3

Toxicity



Runoff Volume ft3 75,339 42,263 47,731 145,898 160,167 31,631

Constituent

86


7-357 7-358 7-359 7-360 7-361 7-362



Units 1/18/2017 1/18/2017 1/18/2017 2/16/2017 1/18/2017 2/10/2017

Field Measurements

pH pH Units 6.77 7.15 6.72 7.61 6.59 7.74

Salinity ppt 0.0329 0.0256 0.0360 0.0941 0.0337 0.1170


Temperature oC 13.5 13.1 14.1 14.1 14.0 17.0

Conventionals

Total Suspended Solids mg/L 18.6 40 26.7 97.4 7.3 165

Oil & Grease mg/L 1.8 ND ND 4.1 ND 3.1

Toxicity



Runoff Volume ft3 73,590 23,884 111,823 64,926 42,605 6,125

Constituent

87


7-363 7-364 7-365 7-366 7-367 7-370



Units 2/10/2017 2/10/2017 2/10/2017 1/18/2017 2/10/2017 1/18/2017

Field Measurements

pH pH Units 7.27 7.81 7.93 7.06 7.47 7.07

Salinity ppt 0.0205 0.0276 0.0452 0.0417 0.0587 0.0204


Temperature oC 15.8 16.6 17.1 14.4 17.5 13.8

Conventionals

Total Suspended Solids mg/L 93.5 136 176 9.2 30.9 153.2

Oil & Grease mg/L 6.3 4.9 5.8 ND 2 1.6

Toxicity

Urchin P/F Fail Fail Fail Pass Fail Fail


Runoff Volume ft3 54,224 167,578 139,810 149,910 603,599 59,590

Constituent

88


7-371 7-372 7-373 7-374 7-377 7-379

MUG355 SAD0950 SAD0960 SAD0970 SAD1000 SAD1050


Units 2/16/2017 2/16/2017 1/18/2017 2/16/2017 2/16/2017 2/16/2017

Field Measurements

pH pH Units 7.28 7.12 7.53 8.00 7.61 7.45

Salinity ppt 0.0321 0.0358 0.1550 0.1050 0.1010 0.0193

Specific Conductivity µS/cm 69.3 79.3 327 222.0 221.0 43.3

Temperature oC 14.0 15.1 13.8 14.5 16.0 14.3

Conventionals

Total Suspended Solids mg/L 25.5 174 78.1 175 67.7 35.2

Oil & Grease mg/L 1.3 1.4 ND 2.7 ND ND

Toxicity

Urchin P/F Fail Fail Fail Fail Pass Pass


Runoff Volume ft3 311,198 279,878 206,599 188,545 127,722 341,920

Constituent

89


7-381 7-383 7-384 7-385 7-386 7-388

SAD1030 MUG318 ALT004 ALT005 ALT006 ALT008


Units 2/16/2017 2/16/2017 1/18/2017 2/10/2017 2/10/2017 2/10/2017

Field Measurements

pH pH Units 7.27 7.16 7.65 8.07 8.41 7.80

Salinity ppt 0.0194 0.0276 0.0255 0.2980 0.1690 0.5340


Temperature oC 14.8 15.1 14.3 16.0 15.9 16.0

Conventionals

Total Suspended Solids mg/L 38.3 80.9 3570 861.5 804.3 255

Oil & Grease mg/L ND 1.1 4.2 4.1 10 16.1

Toxicity

Urchin P/F Pass Fail Fail Fail Fail Fail


Runoff Volume ft3 199,469 109,115 23,579 67,801 24,918 19,123

Constituent

90


7-389 7-390 7-391 7-393 7-400

ALT009 ALT010 ALT011 ALT017 ALT018

Event Event Event Event Event

Units 2/10/2017 1/18/2017 1/18/2017 1/18/2017 2/10/2017

Field Measurements

pH pH Units 7.11 9.01 6.83 7.40 8.18

Salinity ppt 0.1950 0.0401 0.0308 0.0114 0.0990

Specific Conductivity µS/cm 413.0 85.9 67.4 22.0 213.0

Temperature oC 16.2 13.2 13.7 12.8 15.4

Conventionals

Total Suspended Solids mg/L 117.6 43.8 491.4 100.3 175

Oil & Grease mg/L 3.5 ND 1.3 1.4 3.1

Toxicity

Urchin P/F Fail Fail Fail Fail Fail


Runoff Volume ft3 13,328 3,675 58,320 69,893 26,905

Constituent

91


92

Table 2.24b. Results for ASBS 24 UOs (>36")

7-368 7-375 7-376 7-380

MUG283 SAD0980 SAD0990 SAD1060


Units 2/10/2017 2/10/2017 2/10/2017 2/16/2017

Field Measurements

pH pH Units 7.79 6.78 6.83 8.42

Salinity ppt 0.0452 0.048 0.1 0.0578

Specific Conductivity µS/cm 97.9 108.6 206 130

Temperature oC 17 16.6 16.1 15.3

Conventionals

Total Orthophosphate as P mg/L 0.35 0.02 0.04 0.45

Total Suspended Solids mg/L 137.6 15.5 18.2 242.6

Oil & Grease mg/L 5.4 1.2 ND 1.1

Ammonia as N mg/L 0.43 0.98 0.34 0.14

Nitrate as N mg/L 0.6 0.15 0.26 0.46

Elements

Arsenic, total µg/L 0.481 0.08 0.109 1.094

Cadmium, total µg/L 0.9468 0.038 0.064 0.583

Chromium, total µg/L 7.2509 1.1828 1.3638 13.0036

Copper, total µg/L 29.547 4.48 4.508 23.469

Lead, total µg/L 31.769 1.4807 0.6937 7.3926

Mercury µg/L 0.00962 0.00437 0.00677 0.0207

Nickel, total µg/L 9.8138 1.7105 2.6577 15.0901

Selenium, total µg/L 0.148 0.033 0.079 0.152

Silver, total µg/L ND ND ND ND

Zinc, total µg/L 120.0425 11.5436 51.2398 101.595

Toxicity

Urchin P/F Fail Fail Fail Fail


Chlorpyrifos ng/L ND ND ND ND

Diazinon ng/L ND ND ND ND


Acenaphthene ng/L 5.1 ND ND 3.5

Constituent

93


7-368 7-375 7-376 7-380



Units 2/10/2017 2/10/2017 2/10/2017 2/16/2017Constituent

Acenaphthylene ng/L 7.6 ND ND 18.4

Anthracene ng/L 9.8 ND ND 29.7

Benz(a)anthracene ng/L 45.3 1.3 4.6 136.2

Benzo(a)pyrene ng/L 28 ND ND 52.5

Benzo(b)fluoranthene ng/L 156.5 ND ND 274

Benzo(e)pyrene ng/L 58.2 ND ND 129.6

Benzo(g,h,i)perylene ng/L 83.4 ND ND 67.9

Benzo(k)fluoranthene ng/L 48.3 ND ND 172.1

Biphenyl ng/L 3.8 4 5.5 2.4

Chrysene ng/L 98.8 8.4 7.5 209

Dibenz(a,h)anthracene ng/L 12.5 ND ND 36.3

Dibenzothiophene ng/L 13.2 ND 5.2 10

Dimethylnaphthalene, 2,6- ng/L 3.3 ND 1.2 2.2

Fluoranthene ng/L 120.7 11.6 9 283.4

Fluorene ng/L ND 3.1 ND 1.7

Indeno(1,2,3-c,d)pyrene ng/L 40 ND ND 112.2

Methylnaphthalene, 1- ng/L 3.7 1.5 2.4 1.9

Methylnaphthalene, 2- ng/L 6.2 2.6 1.3 2.8

Methylphenanthrene, 1- ng/L 21.6 ND ND 11.5

Naphthalene ng/L 18.2 3.6 2.4 4.2

Perylene ng/L 63.4 ND ND 23.1

Phenanthrene ng/L 41.8 9.6 7 47.3

Pyrene ng/L 187.4 13.9 11.5 258.5

Trimethylnaphthalene, 2,3,5- ng/L ND ND ND ND


Bifenthrin ng/L 18.3 ND ND 13.9

Cyfluthrin ng/L ND ND ND ND

Cypermethrin, total ng/L ND ND ND ND

Deltamethrin/Tralomethrin, total ng/L ND ND ND ND

94


7-368 7-375 7-376 7-380



Units 2/10/2017 2/10/2017 2/10/2017 2/16/2017Constituent

Esfenvalerate ng/L ND ND ND ND

Fenvalerate ng/L ND ND ND ND

Fenpropathrin ng/L ND 1.1 2.4 ND

lamda-Cyhalothrin, total ng/L ND ND ND ND

cis-Permethrin, total ng/L ND ND ND ND

trans-Permethrin ng/L ND ND ND ND


Runoff Volume ft3 87,188 195,391 164,153 195,972

95


96

Table 2.24c. Results for ASBS Site 7-345 (MUG010)

Event Event Event

Units 1/18/2017 2/10/2017 2/16/2017

Field Measurements

pH pH Units 8.71 8.09 8.4

Salinity ppt 0.0448 2.075 0.315

Specific Conductivity µS/cm 91.8 3980 659

Temperature oC 14.4 16.9 14

Conventionals

Total Orthophosphate as P mg/L 0.07 0.14 0.05

Total Suspended Solids mg/L 116.7 19 60.7

Oil & Grease mg/L ND 1.8 ND



Elements




Copper, total µg/L 13.934 11.894 6.073

Lead, total µg/L 3.5882 3.5469 2.0932

Mercury µg/L 0.00651 0.0111 0.0136

Nickel, total µg/L 5.9851 5.1819 3.4834



Zinc, total µg/L 44.9406 57.4191 26.6533

Toxicity

Urchin P/F Fail Fail Pass





Acenaphthene ng/L 2.5 48.1 3.4

Acenaphthylene ng/L 1.4 ND 1.6

Anthracene ng/L 6.3 122.6 10.1

Constituent

97


Event Event Event


Benz(a)anthracene ng/L 85.7 535.1 102.2

Benzo(a)pyrene ng/L 23 247.4 72

Benzo(b)fluoranthene ng/L 76.6 336.4 171.2

Benzo(e)pyrene ng/L 93.1 187.1 82.2

Benzo(g,h,i)perylene ng/L 100.7 154.5 71.2

Benzo(k)fluoranthene ng/L 52.2 322.3 128.4

Biphenyl ng/L 1.6 5 1.6

Chrysene ng/L 75.5 428.5 165.8

Dibenz(a,h)anthracene ng/L ND 58.6 23.2

Dibenzothiophene ng/L 4.5 35.2 11.5

Dimethylnaphthalene, 2,6- ng/L ND 3.8 ND


Fluorene ng/L 1.8 46.7 2.1

Indeno(1,2,3-c,d)pyrene ng/L 82.9 311.7 135.2



Methylphenanthrene, 1- ng/L 12.8 62.2 17.3


Perylene ng/L 11.1 62.8 32.7


Pyrene ng/L 136.4 821.9 175



Bifenthrin ng/L 2.1 21.5 ND

Cyfluthrin ng/L ND ND ND


Deltamethrin/Tralomethrin, total ng/L ND ND ND

Esfenvalerate ng/L 0.8 ND ND

Fenvalerate ng/L 0.8 ND ND

Fenpropathrin ng/L ND 7.3 1.1


98


Event Event Event


cis-Permethrin, total ng/L ND ND ND

trans-Permethrin ng/L ND ND ND



99


100

Table 2.24d. Results for ASBS Site 7-407 (MUG010RW)


Field Measurements

pH pH Units 7.98 8.27 8.1 8.14 8.09 7.95

Salinity ppt 31.6 30.6 31.3 30.3 30.8 29.6


Temperature oC 15.6 16 16.2 15.6 15.6 15.2

Conventionals

Total Orthophosphate as P mg/L ND ND ND ND 0.02 0.05

Total Suspended Solids mg/L 6.2 11 10.7 10.2 8.2 42.8


Ammonia as N mg/L 0.16 0.04 0.05 0.23 ND 0.03

Nitrate as N mg/L ND ND ND 0.1 0.01 0.04

Elements




Copper, total µg/L 0.171 0.243 0.183 0.248 0.179 1.054

Lead, total µg/L 0.0137 0.0608 0.0635 0.0935 0.0242 0.3779

Mercury µg/L 0.00034 0.0005 ND 0.00056 ND 0.00166

Nickel, total µg/L 0.264 0.3771 0.3416 0.4246 0.3677 2.2847

Selenium, total µg/L ND ND 0.007 0.011 0.007 0.017

Silver, total µg/L 0.01 0.01 0.01 0.01 0.03 0.03

Zinc, total µg/L 0.6906 2.109 1.0525 10.2669 0.3985 24.7738

Constituent

Event Event Event

1/18/2017 2/10/2017 2/16/2017

101

Table 2.24d. (cont'd)


Event Event Event

1/18/2017 2/10/2017 2/16/2017

Toxicity



Kelp - Growth P/F Pass Pass Pass Fail Pass Pass

Mussel - Normal Development P/F Pass Pass Pass Pass Pass Pass





Acenaphthene ng/L ND ND ND ND ND 1.2



Benz(a)anthracene ng/L ND ND ND 2.5 ND ND









Dibenzothiophene ng/L ND ND ND ND ND 92.9

102



Event Event Event

1/18/2017 2/10/2017 2/16/2017

Dimethylnaphthalene, 2,6- ng/L ND ND 1 1.3 ND 1.6

Fluoranthene ng/L ND ND ND 1.1 ND 2.1




Methylnaphthalene, 2- ng/L 1.4 1.1 1.6 1 ND ND


Naphthalene ng/L 1.9 1.9 1.4 2.2 ND 1.2


Phenanthrene ng/L ND 1.1 ND 1.5 ND 2.2

Pyrene ng/L ND ND ND ND ND 1.4




Cyfluthrin ng/L 0.6 ND ND ND ND ND

Cypermethrin, total ng/L 0.6 ND ND ND ND ND

Deltamethrin/Tralomethrin, total ng/L 1 ND ND ND ND ND

Esfenvalerate ng/L 0.8 ND ND ND ND ND

Fenvalerate ng/L 0.7 ND ND ND ND ND

Fenpropathrin ng/L 0.3 0.4 ND ND ND ND



103



Event Event Event

1/18/2017 2/10/2017 2/16/2017


104

Table 24.a, b, c, d. (cont’d) Acronyms & Abbreviations:


105


106

Table 2.25a. Results for ASBS Site 12-358 (IRV001, UO)

Event Event

Units 11/20/2016 12/15/2016

Field Measurements


Salinity ppt 0.32 0.16




Runoff Volume ft3

Constituent

81,191

107


108

Table 2.25b. Results for ASBS 33 UOs (>36")


Units 11/20/2016 12/15/2016 11/20/2016 12/15/2016 11/20/2016 12/15/2016

Field Measurements

pH pH Units 5.62 7.08 7.11 6 6.91 6.81

Salinity ppt 0.4 0.13 0.08 0.03 0.05 0.07

Specific Conductivity µS/cm 699 233 149.4 43 85 129

Temperature oC 17.78 17.4 17.6 16.8 17.49 18.2

Elements




Copper, total µg/L 103.858 74.31 5.873 2.909 34.593 30.383

Lead, total µg/L 5.1796 4.1203 0.8038 0.4535 1.0126 1.0045

Mercury µg/L 0.014 0.03 0.00371 0.0118 0.00413 0.0113

Nickel, total µg/L 353.0674 142.2303 2.1353 1.137 4.5378 3.1578


Silver, total µg/L ND ND ND ND ND ND

Zinc, total µg/L 1188.464 477.2511 32.4391 19.6293 98.1145 75.5415


Acenaphthene ng/L ND 6.5 ND 2.1 ND 4.4

Acenaphthylene ng/L 4.1 5.4 2.4 1.6 2.1 2.9

Anthracene ng/L 14.1 17.7 4.1 3.4 8.7 10.2

Benz(a)anthracene ng/L 7.5 19.3 ND 5 2.5 10

IRV009

12-353

Constituent

12-352

IRV002

12-354

IRV020

109



Units 11/20/2016 12/15/2016 11/20/2016 12/15/2016 11/20/2016 12/15/2016

IRV009

12-353

Constituent

12-352

IRV002

12-354

IRV020

Benzo(a)pyrene ng/L 45.4 39.7 19.7 8.7 24.1 24

Benzo(b)fluoranthene ng/L 27.8 31.4 8.4 ND 10.3 ND

Benzo(e)pyrene ng/L 12.7 18.7 4.9 3.1 4.9 7.7

Benzo(g,h,i)perylene ng/L 123 42.2 68.2 10.3 69.2 23.5

Benzo(k)fluoranthene ng/L 6.9 17.8 2.1 ND 3.1 ND

Biphenyl ng/L 6 5.4 3.4 2.7 4.5 3.4

Chrysene ng/L 41.7 63.1 13.6 13.5 20.2 37.7


Dibenzothiophene ng/L 13.2 7.3 13 6.4 15 6.8

Dimethylnaphthalene, 2,6- ng/L 2.7 2.7 1.9 ND ND 1.4

Fluoranthene ng/L 59.5 74.8 17.2 14 17.5 26.3

Fluorene ng/L 3.6 5.1 1.9 1.5 ND ND

Indeno(1,2,3-c,d)pyrene ng/L 46.5 15.2 26.1 2.3 33.9 5.7

Methylnaphthalene, 1- ng/L 3.6 4.6 1.7 2.5 2 4.2

Methylnaphthalene, 2- ng/L 5.2 2.8 2.5 1.5 3.2 1.2

Methylphenanthrene, 1- ng/L 10 7.1 ND ND ND ND

Naphthalene ng/L 13.9 12.2 7.4 5.1 10.3 7.5

Perylene ng/L 15.5 12.6 4.8 ND 7.6 8.7

Phenanthrene ng/L 40.1 30.3 9.7 6.7 10 11.5

Pyrene ng/L 80.9 125.8 33.8 28.4 35.2 62

Trimethylnaphthalene, 2,3,5- ng/L ND 3.3 ND ND ND ND

110



Units 11/20/2016 12/15/2016 11/20/2016 12/15/2016 11/20/2016 12/15/2016

IRV009

12-353

Constituent

12-352

IRV002

12-354

IRV020


Runoff Volume ft3 252,596 437,5326,766

111


112

Table 2.25c. Results for ASBS Site 12-362 (IRV009 Upstream)

Event Event

Units 11/20/2016 12/15/2016

Field Measurements


Salinity ppt 0.04 0.02

Specific Conductivity µS/cm 67.6 27.9


Elements

Arsenic, total µg/L 0.167 0.102

Cadmium, total µg/L 0.161 0.0553


Copper, total µg/L 15.247 8.72

Lead, total µg/L 0.7984 0.287

Mercury µg/L 0.00358 0.00721

Nickel, total µg/L 2.2654 1.0214

Selenium, total µg/L 0.035 0.018

Silver, total µg/L ND ND

Zinc, total µg/L 72.3434 32.7344


Acenaphthene ng/L ND 3.2

Acenaphthylene ng/L 2.3 1.6

Anthracene ng/L 6.4 5.3

Benz(a)anthracene ng/L 3.2 3.7

Benzo(a)pyrene ng/L 28.1 9.3

Benzo(b)fluoranthene ng/L 13 ND

Benzo(e)pyrene ng/L 6.5 4

Benzo(g,h,i)perylene ng/L 105.1 10.8

Benzo(k)fluoranthene ng/L 3.6 ND

Biphenyl ng/L 3.9 2.4

Chrysene ng/L 22.5 16.6


Dibenzothiophene ng/L 15.2 6.3

Dimethylnaphthalene, 2,6- ng/L 2.3 1.3

Constituent

113


Event Event


Fluoranthene ng/L 19.7 11.2

Fluorene ng/L ND ND

Indeno(1,2,3-c,d)pyrene ng/L 45.5 3.1

Methylnaphthalene, 1- ng/L 2.2 2.1

Methylnaphthalene, 2- ng/L 2.8 1.3

Methylphenanthrene, 1- ng/L 5.1 ND

Naphthalene ng/L 8.5 7.7

Perylene ng/L 3.9 3

Phenanthrene ng/L 11.3 6.1

Pyrene ng/L 38.6 27.1

Trimethylnaphthalene, 2,3,5- ng/L 2.2 ND

114

Table 2.25d. Results for ASBS Site 12-363 (Muddy Creek)


Units 11/20/2016 11/26/2016 12/15/2016 12/30/2016 1/5/2017 1/9/2017

Field Measurements

pH pH Units 7.4 7.94 7.77 7.89 8.08 8.6

Salinity ppt 1.37 0.5 1.04 1.05 1.31 0.64


Temperature oC 17.1 12.4 15 15.3 14 15.1

Elements




Copper, total µg/L 9.642 4.275 8.391 2.584 28.692 18.407

Lead, total µg/L 1.5676 0.2349 1.5566 0.3203 12.9238 8.5311

Mercury µg/L 0.0115 0.00185 0.0118 0.00247 0.103 0.0518

Nickel, total µg/L 44.3769 14.858 22.4971 28.9513 82.3486 55.9586



Zinc, total µg/L 53.8164 17.6254 31.6923 19.7903 110.1651 85.0918


Acenaphthene ng/L 9.6 5.6 7.7 1.9 2.1 2


Anthracene ng/L 1.6 ND 3.2 ND 1.4 ND

Benz(a)anthracene ng/L ND ND 4.1 ND 2.2 ND

Benzo(a)pyrene ng/L ND ND 3.6 ND 5.9 ND

Benzo(b)fluoranthene ng/L 1.9 ND 6.5 ND 9 ND

Constituent

115



Units 11/20/2016 11/26/2016 12/15/2016 12/30/2016 1/5/2017 1/9/2017Constituent

Benzo(e)pyrene ng/L ND ND 2.1 ND 12.1 ND

Benzo(g,h,i)perylene ng/L ND ND 3.1 ND 24.6 ND

Benzo(k)fluoranthene ng/L ND ND 3.8 ND 4.9 ND

Biphenyl ng/L 2.6 1.8 ND 1.1 1.9 1.1

Chrysene ng/L 2.2 ND 9.2 ND 5.5 4.4

Dibenz(a,h)anthracene ng/L ND ND 2.7 ND 1.2 ND

Dibenzothiophene ng/L 3.4 2.5 ND ND 1.5 ND

Dimethylnaphthalene, 2,6- ng/L ND ND 1.2 ND ND ND

Fluoranthene ng/L 3.1 2.6 8.2 1.5 154 5.6

Fluorene ng/L ND ND ND ND 2.9 ND

Indeno(1,2,3-c,d)pyrene ng/L ND ND 2.7 ND 19.2 ND

Methylnaphthalene, 1- ng/L 2 1.8 7.2 1.7 1.9 1.3


Methylphenanthrene, 1- ng/L ND 28.6 ND ND ND ND

Naphthalene ng/L 5.4 4.7 3.3 4.9 5.2 3.6

Perylene ng/L 7.2 2.4 1.7 ND 1.8 ND

Phenanthrene ng/L 3.2 2 5.1 1.5 8.2 3.6

Pyrene ng/L 5.5 2.6 8.4 1.3 41.1 7.9


116

Table 2.25e. Results for ASBS Site 12-350 (IRV007, CO)


Units 11/20/2016 11/26/2016 12/15/2016 12/30/2016 1/5/2017 1/9/2017

Field Measurements

pH pH Units 7.78 7.48 7.12 8.43 7.12 7.35

Salinity ppt 0.08 0.24 0.28 0.19 0.06 0.05

Specific Conductivity µS/cm 147.3 495 470 389 135 104

Temperature oC 17.6 15.9 15.8 13.9 14.6 14.6

Elements




Copper, total µg/L 40.904 46.856 17.762 33.899 19.832 20.906

Lead, total µg/L 1.0791 1.4393 0.6083 1.3945 0.6659 1.3382

Mercury µg/L 4.077 0.00459 0.0107 0.0185 0.00516 0.009550001

Nickel, total µg/L 5.2319 5.0743 1.7323 3.3505 1.8822 2.2549



Zinc, total µg/L 128.5819 137.6394 55.445 126.5457 50.6769 72.4187


Acenaphthene ng/L ND 10.5 5.1 5.7 3.5 ND

Acenaphthylene ng/L 2.5 3.4 2.3 3.2 1.6 1.5

Anthracene ng/L 10.1 11.9 8 ND 3 ND

Benz(a)anthracene ng/L ND ND 5.2 9.3 6.5 ND

Benzo(a)pyrene ng/L 22.9 41.2 16.1 6.5 2.8 ND

Benzo(b)fluoranthene ng/L 13.7 20.7 ND 9.3 6.3 ND

Constituent

117

Table 2.25e. (cont'd)


Units 11/20/2016 11/26/2016 12/15/2016 12/30/2016 1/5/2017 1/9/2017Constituent

Benzo(e)pyrene ng/L 6.3 8 6.2 28.3 17.9 7.7

Benzo(g,h,i)perylene ng/L 53.8 110.7 13 33.4 17 ND

Benzo(k)fluoranthene ng/L 5.8 2.8 ND ND ND ND

Biphenyl ng/L 4.7 8 3.2 6.9 2.9 2.7

Chrysene ng/L 17.8 32.8 24.3 29.2 25.2 8.6

Dibenz(a,h)anthracene ng/L ND ND ND 1.6 ND ND

Dibenzothiophene ng/L 17.2 20.5 5.8 5.3 4.8 1.8

Dimethylnaphthalene, 2,6- ng/L ND 1.7 1 1 ND ND

Fluoranthene ng/L 16.7 30.1 14.5 63.7 45.2 11.8

Fluorene ng/L 2.4 ND 1.8 3.5 1.9 ND

Indeno(1,2,3-c,d)pyrene ng/L ND 43.9 4 8.9 6 ND




Naphthalene ng/L 8.4 13.2 6.4 13 6.2 6.9

Perylene ng/L 5.9 15.3 5.2 4.4 3.6 ND

Phenanthrene ng/L 10.9 16.6 6.4 16.8 13.3 6.2

Pyrene ng/L 31 52.7 30.3 26.4 27.5 26.5




118

Table 2.25f. Results for ASBS Site 12-351 (IRV007-ORW)


Field Measurements

pH pH Units 7.85 8.18 8.13 8.24 8.02 8.11

Salinity ppt 32.61 30.67 33.09 32.78 32.71 28.8


Temperature oC 19.7 20.5 17.8 14.7 17.2 14.4

Elements




Copper, total µg/L 0.226 1.608 0.22 0.346 ND 1.616

Lead, total µg/L ND 0.2883 0.014 ND ND 0.3924

Mercury µg/L ND 0.00109 ND ND ND 0.00142

Nickel, total µg/L 0.2913 8.2956 0.3177 0.3848 0.2733 4.9736

Selenium, total µg/L 0.006 0.269 ND ND ND 0.212

Silver, total µg/L 0.01 ND ND ND ND ND

Zinc, total µg/L 0.1874 8.2408 0.4229 0.6235 0.2647 8.1647


Acenaphthene ng/L ND ND ND ND ND 1.5





Event Event Event

Constituent

11/20/2016 11/26/2016 12/15/2016

119

Table 2.25f. (cont'd)


Event Event Event

Constituent

11/20/2016 11/26/2016 12/15/2016

Benzo(b)fluoranthene ng/L ND ND ND ND ND 1.2





Chrysene ng/L ND ND ND ND ND 1.5



Dimethylnaphthalene, 2,6- ng/L ND 1.1 ND 1.1 ND 1.1

Fluoranthene ng/L ND 1.1 ND ND ND 2



Methylnaphthalene, 1- ng/L 1.1 ND ND ND ND ND


Methylphenanthrene, 1- ng/L ND ND 1.4 ND ND ND

Naphthalene ng/L 1.8 2.2 1.9 2.5 1.1 1.3


Phenanthrene ng/L ND 1.1 ND ND ND 1.7

Pyrene ng/L ND 1.3 ND ND ND 1.7


120

Table 2.25a, b, c, d, e, f. (cont’d) Acronyms & Abbreviations:


121


122


123

2.3 COMPARISON TO NATURAL WATER QUALITY The purpose of ASBS monitoring is to assess how water quality in receiving waters near ASBS discharges compare to natural water quality near reference drainage locations. The flowcharts in Figures 2.02a and 2.02b provide the decision structure for assessing compliance which, in general, consists of comparisons between (1) the NWQ and Caltrans ORW values, and (2) pre-storm and during-storm ORW values. The flowchart is applied to consecutive pairs of storm events. For example, if there are six storm events, exceedances are identified by assessing Storm Event #1 and Storm Event #2, then Storm Event #2 and Storm Event #3, etc., through Storm Event #5 and Storm Event #6—the flow chart is applied five times to six storm events. However, based on discussions between State Water Board staff and Caltrans staff, if a wet season only has a single storm event captured, the results of that storm event are not used to assess for compliance, i.e., to identify exceedances of NWQ. Table 2.26 summarizes the NWQ values which are RMG area specific. The NWQ values for use by the No. CA RMG were calculated by ADH Environmental. The NWQ values for use by the Ce. Coast RMG were calculated by Applied Marine Sciences. The NWQ values for use by the So. CA RMG were calculated by the Southern California Coastal Water Research Project (SCCWRP).


124



125

Figure 2.02a. ASBS Compliance Flowchart – Part 1


126

Figure 2.02b. ASBS Compliance Flowchart – Part 2

Table 2.26. ASBS Natural Water Quality Values1

Ce. Coast RMG3,7,8

No. CA Region North South So. CA

RMG2,7,12 Wide Sub-region Sub-region RMG4,9

General (mg/L)

Ammonia as N 0.048 0 0 0 0.015

Nitrate as N 2.784 0.68 1.15 0.6 0.34

Oil & Grease 0 0 0 0 0.5

Ortho-Phosphate5,6 0.09 0.08 0.16 0.05 0.10

TSS 52.086 24 560.3 19.8 48

Metals (µg/L)

Arsenic 1.773 1.6 4.95 1.60 1.8

Cadmium 0.063 0.06 0.24 0.043 0.15

Chromium 4.916 1.74 13.28 0.97 1.9

Copper 2.106 1.11 11.81 1.00 1.5

Lead 0.602 0.22 3.02 0.18 0.5

Mercury 0.005 0.00423 0.0259 0.00316 0.0006

Nickel 4.626 1.67 26.89 0.75 1.3

Selenium 0.029 0.113 0.34 0.077 0.003

Silver 0.13 0.6 0.37 0.62 0.08

Zinc 8.664 2.66 31.76 1.75 18.6

Organics (µg/L)

Total PAHs10,11 0.047 0 0.0038 0 0.0125

Total OPs 0 0 0 0 0.006

Total PPs 0 0 0 0 0.00675

RMG Specific

Urea (µg/L) NA 10 10.45 4.5 NA

Fecal Coliform (MPN/100 mL) NA 143 1,024 83.9 NA

Enterococcus (MPN/100 mL) NA 229 477 188.6 NA

Analyte

127


128

Table2.26.(cont’d)Acronyms & Abbreviations

NA = Not Applicable OPs = Organophosphorus Pesticides PAHs = Polynuclear Aromatic Hydrocarbons PPs = Pyrethroid Pesticides TSS = Total Suspended Solids

Notes: 1. Some values in this table have been rounded for reporting purposes. 2. Source: Wilde, Peter. "NorCal 85th Percentile." Message to Ram Gupta. June 21, 2016. Email. 3. Source: Hardin, Dane. "Central California Reference Data." Message to Bhaskar Joshi. June 21, 2016. Email. 4. Source: Table 6, Near‐Coastal Water Quality at Reference Sites Following Storm Events (SCCWRP 2015). 5. The fraction is Total for the No. CA and So. CA RMGs. 6. The fraction is Dissolved for the Ce. Coast RMG. 7. The NWQ values are calculated with non‐detects equal to 0. 8. The Ce. Coast RMG calculated the natural water quality (NWQ) values two ways. First, a NWQ value was

calculated for the entire region. Second, a NWQ value was calculated on a sub‐region basis where the region was divided into a north‐half and a south‐half. ASBS 9 and 15 lie within the north‐half sub‐region. ASBS 34 lie within the south‐half sub region. State Water Board staff have indicated the desire to use the NWQ values calculated for the entire region. The exceedances identified for ASBS 09, 15, and 34 in this report are based on the region‐wide NWQ values. The sub‐region NWQ values are provided for informational purposes.

9. The NWQ values are calculated with non‐detects equal to one‐half the method detection limit. 10. The Total PAHs NWQ value is based on the sum of the 13 PAHs listed in the California Ocean Plan. 11. The Total PAHs NWQ value is based on the sum of the 25 PAHs listed in the report: Near‐Coastal Water

Quality at Reference Sites Following Storm Events (SCCWRP 2015). 12. An error was found in the NWQ values. The corrected values are listed. Source: Trump, Steen. “FW: North

Coast ASBS RMP and data submitted to CEDEN.” Message to Paul Levy. August 8, 2017. Email.


129

Tables 2.27a through 2.27g present the cumulative data collected starting with the 2012–13 wet season through the current 2016–17 wet season for the seven ORW sites and the NWQ values. Any results where an exceedance has been identified using the flowchart, i.e., Figures 2.02a and 2.02b, are highlighted in yellow. Any results where the ORW Post Storm value is greater than the NWQ value and greater than the Pre Storm ORW value, but not an exceedance, are highlighted in green. As previously mentioned, if a wet season only has a single storm event captured, the results of that storm event are not used to identify exceedances of NWQ. The ASBS Compliance Flowchart is applied to the following consecutive storm events for each ASBS: ASBS 05, No. CA RMG Area. • Event #2 (2/5/2015) & Event #3 (4/6/2015) • Event #4 (12/18/2015) & Event #5 (1/28/2016) • Event #5 (1/28/2016) & Event #6 (2/17/2016) • Event #7 (10/14/2016) & Event #8 (11/19/2016) • Event #8 (11/19/2016) & Event #9 (12/7/2016) ASBS 08, No. CA RMG Area. • Event #4 (10/14/2016) & Event #5 (1/10/2017) • Event #5 (1/10/2017) & Event #6 (1/18/2017) ASBS 09, Ce. Coast RMG Area. • Event #1 (2/6/2014) & Event #2 (2/26/2014) • Event #3 (2/6/2015) & Event #4 (4/7/2015)

• Event #5 (12/3/2015) & Event #6 (3/5/2016) • Event #7 (1/18/2017) & Event #8 (2/15/2017) • Event #8 (2/15/2017) & Event #9 (4/6/2017) ASBS 15, Ce. Coast RMG Area. • Event #2 (12/11/2014) & Event #3 (2/6/2015) • Event #4 (1/3/2016) & Event #5 (3/5/2016) • Event #6 (12/8/2016) & Event #7 (12/15/2016)

• Event #7 (12/15/2016) & Event #8 (1/18/2017)


130

ASBS 34, Ce. Coast RMG Area.

• Event #2 (1/3/2016) & Event #3 (3/5/2016) • Event #3 (3/5/2016) & Event #4 (3/11/2016)

• Event #5 (2/17/2017) & Event #6 (4/7/2017) ASBS 24, So. CA RMG Area. • Event #2 (1/18/2017) & Event #3 (2/10/2017)

• Event #3 (2/10/2017) & Event #4 (2/16/2017) ASBS 33, So. CA RMG Area. • During the 2016–17 wet season, Caltrans determined that, with one exception, it no

longer has direct discharges to the ASBS. Therefore, the ASBS Compliance Flowchart is not applied to any consecutive storm events.

Table 2.27a. Comparison with Natural Water Quality Values - ASBS 05

Units NWQ Pre Post Pre Post Pre Post Pre Post Pre Post Pre Post

Total Orthophosphate as P mg/L 0.09 0.06 0.07 0.04 0.1 0.08 0.05 0.06 0.06 0.04 0.02 0.07 0.06

Total Suspended Solids mg/L 52.086 7.8 18.4 12 47.7 34.2 11 13.2 18.5 23.3 8.2 19.5 14.1

Oil & Grease mg/L 0 0 0 0 0 0 0 1 0 0 0 0 0

Ammonia as N mg/L 0.048 0 0 0 0 0 0 0.06 0.05 0 0.02 0.06 0.05

Nitrate as N mg/L 2.784 0.33 0.29 0.05 0.1 0.42 0.31 0.18 0.27 0.08 0.07 0.21 0.2

Arsenic µg/L 1.773 1.486 1.732 1.443 1.298 2.149 1.527 1.534 1.362 1.738 0.26 1.685 1.817

Cadmium µg/L 0.063 0.0592 0.0513 0.0205 0.0283 0.0875 0.0469 0.0329 0.0248 0.0257 0.009 0.0504 0.0454

Chromium µg/L 4.916 0.4873 1.3377 0.5366 1.81 1.6211 0.814 0.8125 1.1012 1.2533 0.7276 1.3875 1.0525

Copper µg/L 2.106 0.455 0.425 0.161 1.145 0.93 0.313 0.391 0.679 0.736 0.954 0.68 0.698

Lead µg/L 0.602 0 0.1377 0.0136 0.4461 0.4701 0.1207 0.08 0.0828 0.2135 0.1836 0.1236 0.0953

Mercury3 µg/L 0.005 0 0 0.0239 0.0106 0 0 0.0009 0.0015 0.00283 0.00648 0.00213 0.00192

Nickel µg/L 4.626 0.4561 1.2748 0.4546 1.9138 1.6569 0.8196 0.8495 1.3074 1.5534 1.0805 1.7137 1.2882

Selenium µg/L 0.029 0.015 0.032 0.018 0.034 0.041 0.028 0.02 0.031 0.034 0.03 0.037 0.036

Silver µg/L 0.13 0.24 0.06 0.03 0.03 0.31 0.31 0.07 0.07 0.09 0.06 0.04 0.05

Zinc µg/L 8.664 0.8851 1.7923 0.3336 5.4123 2.8918 1.4899 0.9907 1.4056 2.3531 9.5324 1.5839 2.2809

Toxicity, Urchin P/F P P P P P P P P P P P P P

Toxicity, Kelp - Germination P/F P P P P P P P P P P P P P

Toxicity, Kelp - Growth P/F P P P P P P P P P P P P P

Toxicity, Mussel P/F P P F P P P P P P P P P P

Total OPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PAHs4 ng/L 47 3.5 2.8 2.6 9.1 2.9 1.8 39.7 4.5 0 0 7.4 7.8

Total PPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Constituent1,2

2/17/2016

Event #1 Event #2 Event #3 Event #4 Event #5 Event #6

2/26/2014 2/5/2015 4/6/2015 12/18/2015 1/28/2016


Units NWQ Pre Post Pre Post Pre Post

Total Orthophosphate as P mg/L 0.09 0.06 0.06 0.07 0.06 0.09 0.06

Total Suspended Solids mg/L 52.086 42.7 80.3 17.1 37.7 18.3 16.2

Oil & Grease mg/L 0 0 0 0 0 0 0

Ammonia as N mg/L 0.048 0.03 0.06 0.02 0.042 0.042 0.04

Nitrate as N mg/L 2.784 0.17 0.16 0.21 0.14 0.51 0.41

Arsenic µg/L 1.773 1.598 1.494 1.915 2.076 2.128 1.436

Cadmium µg/L 0.063 0.0675 0.0852 0.0452 0.0243 0.0704 0.0368

Chromium µg/L 4.916 0.55 1.1702 0.9568 0.3468 1.1476 1.0301

Copper µg/L 2.106 0.259 0.617 0.575 0.233 0.589 0.73

Lead µg/L 0.602 0.0541 0.1844 0.1306 0.0214 0.1372 0.1735

Mercury3 µg/L 0.005 0 0.00079 0.00032 0.00246 1.223 0.00202

Nickel µg/L 4.626 0.6595 1.4513 1.2394 0.467 0.053 1.0358

Selenium µg/L 0.029 0.025 0.049 0.066 0.041 0.03 0.021

Silver µg/L 0.13 0 0 0.01 0.04 1.5122 0.13

Zinc µg/L 8.664 0 0.7889 1.4486 0.4119 0.00013 1.7802

Toxicity, Urchin P/F P NS NS NS NS NS NS

Toxicity, Kelp - Germination P/F P NS NS NS NS NS NS

Toxicity, Kelp - Growth P/F P NS NS NS NS NS NS

Toxicity, Mussel P/F P NS NS NS NS NS NS

Total OPs ng/L 0 NS NS NS NS NS NS

Total PAHs4 ng/L 47 NS NS NS NS NS NS

Total PPs ng/L 0 NS NS NS NS NS NS

Constituent1,2

Event #7

10/14/2016

Event #8

11/19/2016

Event #9

12/10/2016

Table 2.27b. Comparison with Natural Water Quality Values - ASBS 08


Total Orthophosphate as P mg/L 0.09 0.01 0.02 0.03 0.07 0.04 0.07 0.06 0.01 0.01 0 0.04 0.04

Total Suspended Solids mg/L 52.086 25 39 13.1 60.6 10.6 44.8 15.5 101.6 4.2 78.6 34.1 54.3

Oil & Grease mg/L 0 0 0 0 0 0 1.3 0 0 0 0 0 0

Ammonia as N mg/L 0.048 0.03 0.06 0 0 0.02 0.11 0.08 0.23 0.12 0 0 0.18

Nitrate as N mg/L 2.784 0.05 0.4 0.04 0.04 0.17 0.07 0.22 0.24 0.22 0.22 0.19 0.12

Arsenic µg/L 1.773 1.365 1.456 1.403 1.562 1.572 1.814 1.701 2.238 1.386 1.794 1.541 1.605

Cadmium µg/L 0.063 0.037 0.0377 0.0234 0.0246 0.0173 0.0227 0.079 0.0975 0.0309 0.0566 0.0432 0.0388

Chromium µg/L 4.916 2.3531 3.5081 1.1858 2.7215 1.1025 3.468 0.9471 4.2755 0.8081 6.7463 3.5169 4.1613

Copper µg/L 2.106 1.037 2.104 0.964 1.546 0.815 2.313 0.622 3.021 0.359 3.873 1.667 1.636

Lead µg/L 0.602 0.1424 0.5508 0.1881 0.2345 0.0736 0.2654 0.1049 0.7133 0.054 0.7489 0.2923 0.3235

Mercury3 µg/L 0.005 0 0 0.0066 0 0.00205 0.00472 0.00044 0.00607 0 0.0095 0.00186 0.00281

Nickel µg/L 4.626 3.1683 4.0769 2.1049 3.5974 2.3131 5.9296 1.5911 6.0295 0.9965 10.1949 4.2982 5.0946

Selenium µg/L 0.029 0.027 0.025 0.021 0.022 0.008 0.023 0.016 0.051 0.018 0.032 0.025 0.035

Silver µg/L 0.13 0.03 0.01 0.05 0.05 0.09 0.09 0 0 0 0 0 0.01

Zinc µg/L 8.664 1.4019 4.5731 0.9768 2.3989 2.2686 2.7112 0.8278 3.6688 1.1116 6.443 2.4049 2.8395

Toxicity, Urchin P/F P P P NS P NS P NS P NS P NS P

Toxicity, Kelp - Germination P/F P P P NS P NS P NS P NS P NS P

Toxicity, Kelp - Growth P/F P P P NS P NS P NS P NS P NS P

Toxicity, Mussel P/F P P P NS P NS P NS P NS P NS P

Total OPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PAHs4 ng/L 47 1.4 2.1 1.5 3.7 3.1 2.1 0 80.9 0 6 1.5 3.6

Total PPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Constituent1,2

1/18/2017


2/14/2014 3/20/2015 3/21/2016 10/13/2016 1/10/2017


Table 2.27c. Comparison with Natural Water Quality Values - ASBS 09


Urea mg/L 0.01 0 0 0 0.015 0.01 0.01 0 0 0 0 0.01 0.016

Dissolved Orthophosphate as P mg/L 0.08 0.1 0.11 0.06 0 0.08 0.1 0.06 0.09 0.02 0.02 0.03 0.02

Total Suspended Solids mg/L 24 5 9 11 40 11 52 24 39 6 15 8 16

Oil & Grease mg/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Ammonia as N mg/L 0 0 0 0 0 0 0 0 0.08 0 0 0 0

Nitrate as N mg/L 0.68 0 0.2 0 0 0 0 0.7 0.8 0.2 0.2 0.4 0.3

Arsenic µg/L 1.6 1.267 1.082 1.497 2.126 1.48 1.879 1.684 1.047 1.41 1.51 1.445 1.524

Cadmium µg/L 0.06 0.1037 0.0404 0.0795 0.0626 0.0366 0.0459 0.0853 0.0933 0.0252 0.0228 0.0451 0.0413

Chromium µg/L 1.74 0.4997 0.8204 0.8962 5.6589 0.6731 2.0722 0.7811 1.0118 0.6732 1.0717 0.7916 0.8277

Copper µg/L 1.11 0.524 3.116 1.511 5.706 0.307 1.367 0.314 6.204 0.366 0.822 1.817 0.938

Lead µg/L 0.22 0.018 0.254 0.186 0.9387 0.0764 0.3335 0.1205 0.3937 0.0782 0.1633 0.1783 0.1221

Mercury3 µg/L 0.00423 0 0 0 0 0.000511 0.00186 0.00103 0.00687 0.000493 0.00165 0.00101 0.00141

Nickel µg/L 1.67 0.57 0.8738 0.9672 2.3616 0.8498 2.3131 0.9279 1.4492 0.7519 0.9899 0.8128 0.8976

Selenium µg/L 0.113 0.017 0.014 0.015 0.032 0.012 0.036 0.035 0.028 0.016 0.02 0.014 0.028

Silver µg/L 0.6 0 0 0.25 0.22 0.05 0.05 0.28 0.21 0.08 0.08 0.05 0.04

Zinc µg/L 2.66 1.664 5.031 1.626 8.2874 0.5671 3.5249 1.4209 13.1183 0.8059 2.5109 1.6071 0.8717

Toxicity, Urchin P/F P P P P F P P P P P P P P


Toxicity, Kelp - Growth P/F P P P P P P P P P P F F F

Toxicity, Mussel6 P/F P P P P F - - - - - - - - - - - - - - - - - - - - - - - -

Toxicity, Mussel - Normal Devel.6 P/F P - - - - - - - - - - - - P P P P P P F P

Toxicity, Mussel - Survival6 P/F P - - - - - - - - - - - - P P P P P P P P

Total OPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PAHs4 ng/L 0 0 0 5.55 0 13.22 0 0 0 0 4 0 0

Total PPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Constituent1,2,5

3/5/2016


2/6/2014 2/26/2014 2/6/2015 4/7/2015 12/3/2015



Urea mg/L 0.01 0 0 0.011 0 0.018 0

Dissolved Orthophosphate as P mg/L 0.08 NS NS NS NS NS NS

Total Suspended Solids mg/L 24 18 18 49 40 46 23

Oil & Grease mg/L 0 2 2 2 0 1.5 0

Ammonia as N mg/L 0 0 0 0 0 0 0

Nitrate as N mg/L 0.68 0 0 0 0 0.3 0.3

Arsenic µg/L 1.6 1.725 1.699 1.84 1.83 1.483 0

Cadmium µg/L 0.06 0.0285 0.0372 0.048 0.0478 0.0642 0.1154

Chromium µg/L 1.74 1.2128 1.61 2.3466 1.8721 1.7572 5.3257

Copper µg/L 1.11 0.531 1.052 1.017 1.143 2.475 23.38

Lead µg/L 0.22 0.2015 0.3351 0.4756 0.3794 0.3571 3.4786

Mercury3 µg/L 0.00423 0.00164 0.00229 0.00229 0.00226 0.0026 0

Nickel µg/L 1.67 1.1729 1.4783 2.0338 1.7288 1.9041 5.284

Selenium µg/L 0.113 0.026 0.027 0.049 0.023 0.056 0.077

Silver µg/L 0.6 0.04 0.02 0 0 0.09 0.02

Zinc µg/L 2.66 1.6964 4.1838 3.8971 3.4658 3.4331 79.927

Toxicity, Urchin P/F P P P P P P P

Toxicity, Kelp - Germination P/F P P P P P P P

Toxicity, Kelp - Growth P/F P P P P P P P

Toxicity, Mussel6 P/F P - - - - - - - - - - - - - - - - - -

Toxicity, Mussel - Normal Devel.6 P/F P P F P F F P

Toxicity, Mussel - Survival6 P/F P P P P P P P

Total OPs ng/L 0 0 0 0 0 0 0

Total PAHs4 ng/L 0 0 0 0 0 0 0

Total PPs ng/L 0 0 0 0 0 0 0

Constituent1,2

Event #7

1/18/2017

Event #8

2/17/2017

Event #9

4/6/2017

Table 2.27d. Comparison with Natural Water Quality Values - ASBS 15


Fecal Coliform MPN/100mL 143 R R 10 100 0 512 0 405 0 240 2 900

Enterococcus MPN/100mL 229 20 41 20 30760 0 4549 See Note 7 521 0 7701 10 2254

Urea mg/L 0.01 0 0 0 0 0.01 0.04 0 0.022 0.014 0.011 0 0

Dissolved Orthophosphate as P mg/L 0.08 0.15 0.07 0.06 0 0.04 0.04 0.03 0.03 0.05 0.07 NS NS


Oil & Grease mg/L 0 0 0 0 0 0 0 0 0 0 0 0 2

Ammonia as N mg/L 0 0 0 0.18 0.17 0 0 0 0 0 0 0 0

Nitrate as N mg/L 0.68 0 0 0.1 1.4 0 0.3 0.4 1.9 0.4 1.2 0.2 0.4

Arsenic µg/L 1.6 1.43 1.393 1.895 2.927 1.533 2.002 1.496 4.659 1.725 1.982 1.764 1.926

Cadmium µg/L 0.06 0.0448 0.0372 0.0609 0.477 0.0261 0.0802 0.047 0.5007 0.0471 0.0645 0.044 0.0647

Chromium µg/L 1.74 0.5784 0.7024 4.2347 8.4077 0.7331 4.9468 0.8781 15.661 1.9124 2.0574 0.5534 1.0501

Copper µg/L 1.11 0.244 0.269 1.371 5.604 0.246 2.292 0.517 11.678 0.646 1.351 0.184 0.491

Lead µg/L 0.22 0 0.0344 0.3122 2.2277 0.0422 0.7145 0.0965 3.6845 0.1649 0.3303 0.0435 0.0976

Mercury3 µg/L 0.00423 0 0 0.00271 0.0119 0.00049 0.00589 0.000863 0.0129 0.00217 0.00376 0.000745 0.00117

Nickel µg/L 1.67 0.6543 0.864 4.3354 12.2134 0.6893 3.818 0.8327 24.5697 1.6814 2.0114 0.5745 0.8762

Selenium µg/L 0.113 0.02 0.015 0.033 0.133 0.017 0.046 0.028 1.814 0.047 0.031 0.02 0.036

Silver µg/L 0.6 0 0.03 0.15 0.15 0.06 0.05 0.07 0.12 0.05 0.05 0 0

Zinc µg/L 2.66 0.8004 0.6004 6.379 17.059 0.6104 7.0301 0.8244 33.5847 1.4353 3.9703 0.5355 1.4366




Toxicity, Mussel6 P/F P P P - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Toxicity, Mussel - Normal Devel.6 P/F P - - - - - - P P P P P P P P P P

Toxicity, Mussel - Survival6 P/F P - - - - - - P P P F P P P P P P

Total OPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PAHs4 ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PPs ng/L 0 0 0 0 0 0 0 0 0 0 0 NS NS

Constituent1,2

12/8/2016


2/5/2014 12/11/2014 2/6/2015 1/3/2016 3/5/2016


Units NWQ Pre Post Pre Post

Fecal Coliform MPN/100mL 143 2 327 2 2

Enterococcus MPN/100mL 229 10 4711 10 31

Urea mg/L 0.01 0 0.014 0 0

Dissolved Orthophosphate as P mg/L 0.08 NS NS NS NS

Total Suspended Solids mg/L 24 33 213 26 18

Oil & Grease mg/L 0 0 3 3 0

Ammonia as N mg/L 0 0 0 0 0

Nitrate as N mg/L 0.68 0.2 0.3 0 0

Arsenic µg/L 1.6 1.747 2.507 1.649 3.012

Cadmium µg/L 0.06 0.0858 0.1849 0.0372 0.2704

Chromium µg/L 1.74 1.4442 4.5973 0.8577 6.4889

Copper µg/L 1.11 0.324 1.87 0.414 2.904

Lead µg/L 0.22 0.1113 1.0087 0.0818 4.0504

Mercury3 µg/L 0.00423 0.00385 0.00634 0.00759 0.00196

Nickel µg/L 1.67 1.0852 3.3874 0.9314 10.9272

Selenium µg/L 0.113 0.038 0.05 0.031 1.568

Silver µg/L 0.6 0 0 0.04 0.56

Zinc µg/L 2.66 2.3944 5.4686 0.9753 20.2078

Toxicity, Urchin P/F P P P P P

Toxicity, Kelp - Germination P/F P P P P P

Toxicity, Kelp - Growth P/F P P P P P

Toxicity, Mussel6 P/F P - - - - - - - - - - - -

Toxicity, Mussel - Normal Devel.6 P/F P P P P P

Toxicity, Mussel - Survival6 P/F P P P P P

Total OPs ng/L 0 0 0 0 0

Total PAHs4 ng/L 0 0 0 0 0

Total PPs ng/L 0 NS NS NS NS

Event #7

12/15/2016

Event #8

1/18/2017

Constituent1,2

Table 2.27e. Comparison with Natural Water Quality Values - ASBS 34


Fecal Coliform MPN/100mL 143 0 100 0 50 7 14 0 130 2 22 10 110

Enterococcus MPN/100mL 229 0 413 See Note 7 119 0 161 0 86 30 20 10 10

Urea mg/L 0.01 0 0 0 0 0 0 0 0 0.051 0 0 0

Dissolved Orthophosphate as P mg/L 0.08 0 0.16 0.02 0.06 0.03 0.04 0.03 0.07 0.04 0.1 0.06 0.07


Oil & Grease mg/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Ammonia as N mg/L 0 0.28 0 0 0 0 0 0 0 0 0 0 0

Nitrate as N mg/L 0.68 0.1 1.4 0.3 0.3 0.4 0.3 0.4 0.4 0 0.3 0.3 0.2

Arsenic µg/L 1.6 1.525 1.097 1.576 0.853 1.516 1.368 1.855 0.606 1.255 0.323 1.082 0.455

Cadmium µg/L 0.06 0.0228 0.6066 0.0185 0.1047 0.032 0.0292 0.0558 0.1412 0.0518 0.2139 0.077 0.1418

Chromium µg/L 1.74 0.2582 1.5982 0.1765 0.852 0.2053 0.2573 0.1594 0.4414 0.2655 0.6026 0.3307 0.2808

Copper µg/L 1.11 0.148 2.073 0.104 0.902 0.123 0.216 0.192 0.736 0.156 0.729 0.105 0.317

Lead µg/L 0.22 0 0.8902 0.065 0.4248 0.0105 0.0679 0.0487 0.2601 0.0549 0.4579 0.0546 0.1434

Mercury3 µg/L 0.00423 0.000293 0.00885 0.000258 0.00853 0 0.00173 0.000886 0.00481 0.000884 0.00609 0.0004 0.00201

Nickel µg/L 1.67 0.2426 2.9799 0.1976 1.28 0.2284 0.3135 0.3731 1.0924 0.3431 1.0194 0.3773 0.6072

Selenium µg/L 0.113 0.016 0.68 0.013 0.347 0.019 0.015 0.015 0.044 0.011 0.066 0.028 0.045

Silver µg/L 0.6 0.21 0.02 0.08 0 0.05 0.05 0.09 0.08 0 0 0.08 0.05

Zinc µg/L 2.66 0.4003 11.2771 0 6.0746 0.2058 0.6086 1.9792 4.435 0.695 5.641 0.7399 5.6332




Toxicity, Mussel - Normal Devel. P/F P P P P P P P P P P P P P

Toxicity, Mussel - Survival P/F P P P P P P P P P P P P P

Total OPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PAHs4 ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Total PPs ng/L 0 0 0 0 0 0 0 0 0 0 0 0 0

Constituent1,2

4/7/2017


12/11/2014 1/3/2016 3/5/2016 3/11/2016 2/17/2017


Table 2.27f. Comparison with Natural Water Quality Values - ASBS 24

Units NWQ Pre Post Pre Post Pre Post Pre Post

Total Orthophosphate as P mg/L 0.1 0.03 0.11 0.005 0.005 0.005 0.005 0.02 0.05

Total Suspended Solids mg/L 48 14.5 134 6.2 11 10.7 10.2 8.2 42.8

Oil & Grease mg/L 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Ammonia as N mg/L 0.015 0.01 0.01 0.16 0.04 0.05 0.23 0.01 0.03

Nitrate as N mg/L 0.34 0.03 0.01 0.005 0.005 0.005 0.1 0.01 0.04

Arsenic µg/L 1.8 1.422 1.904 1.467 1.39 1.317 1.513 1.362 1.439

Cadmium µg/L 0.15 0.1053 0.1473 0.0187 0.0228 0.0264 0.0222 0.0224 0.0825

Chromium µg/L 1.9 1.2754 1.6479 0.3298 0.4574 0.2837 0.4529 0.4254 3.1823

Copper µg/L 1.5 0.519 1.31 0.171 0.243 0.183 0.248 0.179 1.054

Lead µg/L 0.5 0.1691 0.6973 0.0137 0.0608 0.0635 0.0935 0.0242 0.3779

Mercury3 µg/L 0.0006 0.0006 0.0006 0.00034 0.0005 0.0006 0.00056 0.0006 0.00166

Nickel µg/L 1.3 0.8569 1.9577 0.264 0.3771 0.3416 0.4246 0.3677 2.2847

Selenium µg/L 0.003 0.042 0.085 0.0025 0.0025 0.007 0.011 0.007 0.017

Silver µg/L 0.08 0.07 0.08 0.01 0.01 0.01 0.01 0.03 0.03

Zinc µg/L 18.6 1.7841 7.5549 0.6906 2.109 1.0525 10.2669 0.3985 24.7738

Toxicity, Urchin P/F P P P P P P P P P

Toxicity, Kelp - Germination P/F P P P P P P P P P

Toxicity, Kelp - Growth P/F P P P P P P P P P

Toxicity, Mussel P/F P P P P P P P P P

Total OPs9 ng/L 6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total PAHs4 ng/L 12.5 11.6 10.9 14.8 15.1 15 19.1 12.5 27.99

Total PPs ng/L 7 7 7 6 3.65 3.4 3.4 3.4 3.4

Constituent1,2

Event #18 Event #2 Event #3 Event #4

2/26/2014 1/18/2017 2/10/2017 2/16/2017


Table 2.27g. Comparison with Natural Water Quality Values - ASBS 33


Total Orthophosphate as P mg/L 0.1 0.02 0.02 0.01 0.02 0.02 0.02 0.02 0.08 0.03 0.03 0.03 0.03

Total Suspended Solids mg/L 48 18 11.3 7.2 10.3 22 4.4 4.7 15.7 4.6 6.4 3.2 13.8

Oil & Grease mg/L 0.5 1 0.5 0.5 7.3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Ammonia as N mg/L 0.015 0.01 0.04 0.03 0.01 0.01 0.01 0.01 0.03 0.03 0.01 0.01 0.01

Nitrate as N mg/L 0.34 0.3 0.31 0.15 0.12 0.03 0.03 0.02 0.13 0.02 0.03 0.01 0.02

Arsenic µg/L 1.8 1.48 1.549 1.4 1.435 1.349 1.648 1.35 1.621 1.393 1.566 1.517 1.648

Cadmium µg/L 0.15 0.044 0.0409 0.14 0.1371 0.0622 0.0968 0.018 0.5441 0.0113 0.1077 0.051 0.1045

Chromium µg/L 1.9 0.3 0.2799 0.69 0.589 0.5078 0.9756 0.2382 1.4911 0.1415 0.5613 0.3385 1.2709

Copper µg/L 1.5 0.23 0.385 0.41 0.648 0.247 0.561 0.506 1.061 0.553 0.377 0.232 2.304

Lead µg/L 0.5 0.052 0.1043 0.46 0.1165 0.1127 0.3218 0.0391 0.1481 0.023 0.1715 0.0741 0.37

Mercury3 µg/L 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006 0.0006

Nickel µg/L 1.3 0.33 0.3596 0.62 0.843 0.4045 0.8299 0.2723 3.8244 0.1777 0.6794 0.3303 1.2345

Selenium µg/L 0.003 0.022 0.01 0.018 0.031 0.018 0.028 0.013 0.222 0.0025 0.019 0.011 0.035

Silver µg/L 0.08 0.005 0.005 0.01 0.005 0.13 0.01 0.08 0.05 0.07 0.06 0.08 0.09

Zinc µg/L 18.6 2.86 3.5577 25.5 30.471 1.4477 2.2298 0.5231 4.9648 0.2875 1.8278 0.9003 3.4486



Toxicity, Kelp - Growth P/F P P P P P P F P P P F P P

Toxicity, Mussel P/F P P P P P P P P P P P P P

Total OPs9 ng/L 6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Total PAHs4 ng/L 12.5 6.5 6.5 6.5 6.5 7.3 6.5 6.5 6.5 8 6.5 6.5 7.5

Total PPs ng/L 7 7 7 7 7 7 7 7 7 7 7 7 7

12/12/2014


2/18/2013 3/6/2013 2/27/2014 10/31/2014 12/2/2014

Constituent1,2

Table 2.27g. (cont'd)


Total Orthophosphate as P mg/L 0.1 0.02 0.06 0.02 0.02 0.02 0.22 NS NS NS NS NS NS

Total Suspended Solids mg/L 48 5.1 165.6 2.8 3.8 3.1 91.1 NS NS NS NS NS NS

Oil & Grease mg/L 0.5 0.5 0.5 0.5 0.5 0.5 0.5 NS NS NS NS NS NS

Ammonia as N mg/L 0.015 0.04 0.05 0.01 0.01 0.01 0.01 NS NS NS NS NS NS

Nitrate as N mg/L 0.34 0.005 0.06 0.005 0.005 0.005 0.05 NS NS NS NS NS NS

Arsenic µg/L 1.8 1.505 3.318 1.491 1.537 1.452 2.417 1.913 1.768 1.576 1.793 1.439 2.263

Cadmium µg/L 0.15 0.0465 7.2197 0.0648 0.0632 0.0557 0.7831 0.0277 2.2919 0.0348 0.0355 0.044 1.6929

Chromium µg/L 1.9 0.2856 6.1695 0.3014 0.2266 0.282 5.5058 0.1296 1.2255 0.1725 0.1542 0.3255 4.0382

Copper µg/L 1.5 0.217 4.401 0.292 0.276 2.27 3.99 0.226 1.608 0.22 0.346 0.0025 1.616

Lead µg/L 0.5 0.0512 1.3711 0.0548 0.0455 0.1777 1.16 0.00125 0.2883 0.014 0.00125 0.00125 1.4336

Mercury3 µg/L 0.0006 0.0018 0.0109 0.00089 0.00061 0.00002 0.00885 0.0006 0.00109 0.0006 0.0006 0.0006 0.00142

Nickel µg/L 1.3 0.3968 27.6453 0.4187 0.3604 0.4034 5.6835 0.2913 8.2956 0.3177 0.3848 0.2733 12.5573

Selenium µg/L 0.003 0.024 0.667 0.011 0.015 0.02 0.076 0.006 0.269 0.0025 0.0025 0.0025 0.212

Silver µg/L 0.08 0.06 0.06 0.1 0.11 0.05 0.06 0.005 0.005 0.005 0.005 0.005 0.005

Zinc µg/L 18.6 0.0815 31.1309 0.6542 0.4392 1.7026 14.5928 0.1874 8.2408 0.4229 0.6235 0.2647 8.1647

Toxicity, Urchin P/F P P P P P P P NS NS NS NS NS NS

Toxicity, Kelp - Germination P/F P P P P P P P NS NS NS NS NS NS

Toxicity, Kelp - Growth P/F P P P P P P P NS NS NS NS NS NS

Toxicity, Mussel P/F P P P P P P P NS NS NS NS NS NS

Total OPs9 ng/L 6 0.5 0.5 0.5 0.5 0.5 0.5 NS NS NS NS NS NS

Total PAHs4 ng/L 12.5 14.6 21.4 23.8 19.8 12.5 29.3 14.4 16.8 14.8 15.1 13.1 20.5

Total PPs ng/L 7 7 7 7 7 7 7 NS NS NS NS NS NS

Event #9

3/6/2016

Event #7

1/5/2016

Event #8

2/17/2016

Constituent1,2

Event #10

11/20/2016

Event #11

11/26/2016

Event #12

12/15/2016



Total Orthophosphate as P mg/L 0.1 NS NS NS NS NS NS

Total Suspended Solids mg/L 48 NS NS NS NS NS NS

Oil & Grease mg/L 0.5 NS NS NS NS NS NS

Ammonia as N mg/L 0.015 NS NS NS NS NS NS

Nitrate as N mg/L 0.34 NS NS NS NS NS NS

Arsenic µg/L 1.8 1.541 1.306 1.443 2.397 1.223 2.098

Cadmium µg/L 0.15 0.1872 0.0993 0.1051 1.0631 0.0777 0.6697

Chromium µg/L 1.9 0.726 0.2285 0.2131 6.1976 0.3167 5.0067

Copper µg/L 1.5 0.352 0.069 0.0025 2.259 0.0025 2.092

Lead µg/L 0.5 0.4684 0.00125 0.0357 1.9907 0.0141 1.961

Mercury3 µg/L 0.0006 0.00129 0.00025 0.00028 0.00559 0.00007 0.00504

Nickel µg/L 1.3 0.7487 0.7147 0.9017 5.3479 0.5406 4.5471

Selenium µg/L 0.003 0.017 0.02 0.019 0.06 0.024 0.054

Silver µg/L 0.08 0.005 0.005 0.005 0.005 0.005 0.005

Zinc µg/L 18.6 2.9501 0.6342 0.3914 13.9138 0.313 12.0441

Toxicity, Urchin P/F P NS NS NS NS NS NS

Toxicity, Kelp - Germination P/F P NS NS NS NS NS NS

Toxicity, Kelp - Growth P/F P NS NS NS NS NS NS

Toxicity, Mussel P/F P NS NS NS NS NS NS

Total OPs9 ng/L 6 NS NS NS NS NS NS

Total PAHs4 ng/L 12.5 19.1 18.4 15.1 20.3 15.2 19

Total PPs ng/L 7 NS NS NS NS NS NS

Constituent1,2

Event #13 Event #14 Event #15

12/30/2016 1/5/2017 1/9/2017


Table 2.27a, b, c, d, e, f, g. (cont’d) Acronyms & Abbreviations:

F = Fail NS = Not Sampled OPs = Organophosphorus Pesticides P = Pass PAHs = Polynuclear aromatic hydrocarbons PPs = Pyrethroid Pesticides P/F = Pass/Fail R = Rejected Data

Notes: 1. Cells shaded in green indicate a single Post Storm ORW result that is greater than both the NWQ value and the

Pre Storm ORW result. However, cells shaded in green do not indicate an exceedance of Natural Water Quality in accordance with the ASBS compliance flow chart (Figures 2.02a and 2.02b). Rows shaded in yellow indicate a constituent that has exceeded a NWQ value.

2. Non Detect values are treated as follows: • ASBS 05 and 08. Per the No. CA RMG, Non Detect values are set equal to zero. • ASBS 09, 15, and 34. Per the Ce. Coast RMG, Non Detect values are set equal to zero. • ASBS 24 and 33. Per the So. CA RMG, Non Detect values are set equal to one-half the method detection

limit. 3. The Sampling and Analysis Plan (SAP) was updated for the 2014–15 wet season and finalized in March 2015.

The updated SAP included a lower detection limit for mercury. This change was made because the method changed from EPA 1640 to EPA 1631e. Additionally: • ASBS 05. The detection limit for mercury was lowered from 0.005 µg/L to 0.0002 µg/L. The change in

method did not take effect until the start of the 2015–16 wet season. The first three storm events used Method 1640 for the analysis of mercury. The remaining storm events used Method 1631e for the analysis of mercury.

• ASBS 08. The detection limit for mercury was lowered from 0.005 µg/L to 0.0002 µg/L. The first storm event used Method 1640 for the analysis of mercury. The remaining storm events used Method 1631e for the analysis of mercury.

• ASBS 09, 15, and 34. Even though the SAP method changed, the laboratory performing the analysis had always used Method 1631e for mercury.

• ASBS 24. The detection limit for mercury was lowered from 0.005 µg/L to 0.0002 µg/L. The first storm event used Method 1640 for the analysis of mercury. The remaining storm events used Method 1631e for the analysis of mercury.

• ASBS 33. The detection limit for mercury was lowered from 0.005 µg/L to 0.0002 µg/L. The change in method did not take effect until the start of the 2015–16 wet season. The first six storm events used Method 1640 for the analysis of mercury. The remaining storm events used Method 1631e for the analysis of mercury.

4. During the 2012–13 and 2013–14 wet seasons, 13 PAHs were analyzed as required by the Caltrans Permit. The SCCWRP Reference Water Quality Study (Report), released in February 2015, used 25 PAHs. After the Report was released, Caltrans started analyzing for 25 PAHs.

147

• ASBS 05 and 08. After the release of the SCCWRP Report, the No. CA RMG decided that the Total PAHs should be based on 13 PAHs—not the 25 PAHs used in the SCCWRP Report. The first storm event captured during the 2013–14 wet season only analyzed for 13 PAHs. All remaining storm events captured were analyzed for 25 PAHs. However, all Total PAHs listed in the data tables are based on 13 PAHs since that is what the NWQ values are based on.

• ASBS 09. After the release of the SCCWRP Report, the Ce. Coast RMG decided that the Total PAHs should be based on 13 PAHs—not the 25 PAHs used in the SCCWRP Report. The first two storm events captured during the 2013–14 wet season only analyzed for 13 PAHs. All remaining storm events captured were analyzed for 25 PAHs. However, all the Total PAHs listed in the data table are based on 13 PAHs since that is what the NWQ values are based on.

• ASBS 15. After the release of the SCCWRP Report, the Ce. Coast RMG decided that the Total PAHs should be based on 13 PAHs—not the 25 PAHs used in the SCCWRP Report. The first storm event captured during the 2013–14 wet season only analyzed for 13 PAHs. All remaining storm events captured were analyzed for 25 PAHs. However, all the Total PAHs listed in the data table are based on 13 PAHs since that is what the NWQ values are based on.

• ASBS 34. After the release of the SCCWRP Report, the No. CA RMG decided that the Total PAHs should be based on 13 PAHs—not the 25 PAHs used in the SCCWRP Report. All storm events captured were analyzed for 25 PAHs. However, all the Total PAHs listed in the data table are based on 13 PAHs since that is what the NWQ values are based on.

• ASBS 24. The So. CA RMG used the Total PAHs value based on the 25 PAHs calculated in the SCCWRP Report. The first storm event captured during the 2013–14 wet season only analyzed for 13 PAHs. All remaining storm events captured were analyzed for 25 PAHs.

• ASBS 33. The So. CA RMG used the Total PAHs value based on the 25 PAHs calculated in the SCCWRP Report. The first six storm events captured only analyzed for 13 PAHs. All remaining storm events captured were analyzed for 25 PAHs.

5. ASBS 09 lies outside the range of the Southern Sea Otter where bacteria samples are required to be collected. Bacteria samples were inadvertently collected the first 3 storm events. Results of the bacteria samples are not included in this MRR but are included in previous MRRs.

6. The toxicity laboratory initially reported a single Pass/Fail value for Mussel toxicity, and then the laboratory switched to reporting Pass/Fail values for Normal Development and Survival.

7. The laboratory lost the pre-storm sample for the January 3, 2016 storm event for ASBS 15 and 34; therefore, there are no data to report.

8. The ORW site moved within ASBS 24. Water quality data for Event #1 was captured at a different ORW site than the other events.

9. The NWQ value for Total OPs in ASBS 24 and 33 is 6 ng/L. This NWQ value is based on eight OPs. CT only monitored for two OPs.

148


149

Section 3

TMDL MONITORING 3.1 OVERVIEW Caltrans is a named stakeholder in 84 TMDLs (State Water Board 2012). Caltrans conducts characterization monitoring and BMP effectiveness monitoring in these TMDL watersheds. For the 2016–17 wet season, the Caltrans TMDL Monitoring Program consisted of two projects: 1. District 11 Chollas Creek TMDL Monitoring Project

2. Tier 1 TMDL Monitoring Project In previous MRRs, the Tier 1 TMDL Monitoring Project was referred to as the NPDES Permit TMDL Monitoring Project. 3.1.1 Monitoring Sites The two projects listed above consist of 50 monitoring sites, see Table 3.01. Table 3.01. Number of TMDL Monitoring Sites by Project

Number of Sites

TMDL Monitoring Project

Name Used in this Report

11 District 11 Chollas Creek TMDL Monitoring Project Chollas Creek Project

39 Tier 1 TMDL Monitoring Project (Districts 1, 2, 3, 4, 5, 7, 10, and 12) Tier 1 Project

Notes: 1. In previous MRRs, the Tier 1 TMDL Monitoring Project was referred to as the NPDES Permit TMDL Monitoring

Project.

HJChen

Highlight


150

The 50 monitoring sites in these two projects are located in more than 20 TMDLs. A list of Chollas Creek Project sites is provided in Table 3.02. A list of Tier 1 Project sites is provided in Table 3.03. Tables 3.02 and 3.03 include site identification number, site name, Regional Water Board region number, and the latitude and longitude for each site. A map of the TMDL watersheds is presented in Figure 3.01.

Table3.02.ListofTMDLMonitoringSitesforChollasCreekProject

Site ID Number

Site Name

BMP Type

Roadway Post Mile

Latitude1 Longitude1

TMDL(s)2

TMDL Reach No.

11‐340

28th Street Influent

Bio‐infiltration

Swale

SR‐94 2.23

32.714 ‐117.133

Chollas Creek Diazinon TMDL Chollas Creek Dissolved Metals TMDL

1 1

11‐341

28th Street Effluent

Bio‐infiltration

Swale

SR‐94 2.23

32.714 ‐117.134


1 1

11‐343

I‐15S/SR94‐INF

Modular Infiltration

Trench

I‐15 2.14

32.716 ‐117.118


1 1

11‐344

I‐15S/SR94‐EFF


Trench

I‐15 2.14

32.716 ‐117.118


1 1

11‐346

I‐15S/Market‐EFF


Trench

I‐15 1.82

32.711 ‐117.120


1 1

11‐350

SR94E/Bridge‐INF


Trench

SR‐94 3.34

32.718 ‐117.115


1 1

11‐351

SR94E/Bridge‐EFF


Trench

SR‐94 3.34

32.718 ‐117.115


1 1

11‐352

SR94E/Mass‐INF

Bio‐infiltration

Swale

SR‐94 8.27

32.744 ‐117.042


2 2

11‐353

SR94E/Mass‐EFF

Bio‐infiltration

Swale

SR‐94 8.27

32.744 ‐117.042


2 2

151

Table3.02.(cont’d)

Site ID Number

Site Name

BMP Type

Roadway Post Mile

Latitude Longitude

TMDL(s)1

TMDL Reach No.

11‐355

RW‐NF

None3

SR‐94 3.34

32.718 ‐117.115


1 1

11‐356

RW‐SF

None3

SR‐94 5.78

32.723 ‐117.076


2 2

Notes: 1. Latitude and longitude numbers have been rounded for reporting purposes. 2. TMDLs are within the San Diego Regional Water Quality Control Board area. 3. Receiving water site—not a characterization site or BMP effluent site.

152

Table3.03.ListofTMDLMonitoringSitesforTier1Project

Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

1‐341

Weott North Humboldt

None2

US 101 37.334

40.373 ‐123.927

1

Lower Eel River Sediment & Temperature TMDL

1

1‐342

Meyers Flat Humboldt

None2

US 101 27.673

40.267 ‐123.866

1

South Fork Eel River Temperature & Sediment TMDL

1

2‐303

Shasta River Influent

Detention Basin

I‐5 22.18

41.431 ‐121.765

1

Klamath River in California Temperature, Dissolved Oxygen, Nutrients and Microcystin TMDL

Shasta River Dissolved Oxygen and

Temperature TMDL4

20 3

2‐304

Shasta River Effluent

Detention Basin

I‐5 22.18

41.432 ‐122.429

1


Shasta River Dissolved Oxygen and

Temperature TMDL4

20 3

2‐305

Lost River

None2

SR‐161 8.78

41.997 ‐121.724

1


Lost River Nitrogen Biochemical Oxygen

Demand to address Dissolved Oxygen and pH Impairments TMDL

25 1

2‐306

Mad River

None2

SR‐36 2.82

40.450 ‐123.502

1

Mad River Sediment and Turbidity TMDL

5

3‐397

I‐5 SB at Cosumnes

None1

I‐5 15.471

38.473 ‐121.502

5

Sacramento‐San Joaquin River Delta Estuary Methylmercury TMDL

2

3‐404

Truckee River Influent

Detention Basin

SR‐267 1.09

39.325 ‐120.158

6

Truckee River Sediment TMDL

1

3‐405

Truckee River Effluent

Detention Basin

SR‐267 1.09

39.326 ‐120.158

6


1

153


Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

4‐349

Carquinez Br.

South

None2

I‐80

13.545

38.054 ‐122.226

4

San Francisco Bay Mercury TMDL San Francisco Bay PCBs TMDL

5 5

4‐350

I‐680/24 IC

None2

SR‐24 9.07

37.897 ‐122.072

4

San Francisco Bay Urban Creeks Diazinon and Pesticide TMDL


3 5 1

4‐351

I‐580/80 IC

None1

I‐80 7.57

37.891 ‐122.308

4


12

12

4‐405

Antioch Influent

Biofiltration Basin

SR‐4 26.78

38.001 ‐121.824

4


1

4‐406

Antioch Effluent

Biofiltration Basin

SR‐4 26.78

38.001 ‐121.824

4


1

4‐407

Marin SR‐131

None2

SR‐131 R1.558

37.896 ‐122.491

4

Richardson Bay Pathogens TMDL

1

4‐412

4‐Sol‐12‐0.945‐INF

Bioswale

SR‐12 0.945

38.208 ‐122.186

4

Napa River Sediment TMDL

1

4‐413

4‐Sol‐12‐0.945‐EFF

Bioswale

SR‐12 0.945

38.208 ‐122.186

4


1

4‐414

4‐CC‐4‐23.9‐INF

Bioswale

SR‐4 23.9

38.013 ‐121.874

4


1

4‐415

4‐CC‐4‐23.9‐EFF

Bioswale

SR‐4 23.9

38.013 ‐121.874

4


1

5‐306

Santa Cruz HWY 1/17 IC

None2

SR‐1 17.197

36.986 ‐122.023

3

San Lorenzo River (includes Carbonera, Lompico, and Shingle Mills Creeks) Sediment TMDL

1

154


Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

5‐307

Santa Cruz SB HWY 1 Influent

Bioswale

SR‐1 16.6

36.989 ‐122.017

3


1

5‐308

Santa Cruz SB HWY 1 Effluent

Bioswale

SR‐1 16.6

36.989 ‐122.017

3


1

7‐08

North Hollywood CSF Influent

CSF3

US‐101 11.11

34.149 ‐118.373

4

Los Angeles River Watershed Bacteria TMDL

Los Angeles River Watershed Metals

TMDL

5 4

7‐09

North Hollywood CSF Effluent

CSF3

US 101 11.11

34.149 ‐118.373

4



TMDL

5 4

7‐201

UCLA‐1 Effluent

Linear Radial GSRD

US 101 18.61

34.165 ‐118.481

4



TMDL

5 5

7‐336

SMB‐MC

None2

SR‐1 46.9

34.035 ‐118.681

4

Malibu Creek and Lagoon Bacteria TMDL Malibu Creek and Lagoon Sedimentation

and Nutrients TMDL

1 1

7‐404

UCLA‐1 Influent

Linear Radial GSRD

US 101 18.61

34.165 ‐118.481

4



TMDL

5 5

155


Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

7‐405

Shoup Influent

Inclined Screen GSRD

US 101 26.0

34.167 118.615

4

Los Angeles River Trash TMDL Los Angeles River Watershed Bacteria

TMDL Los Angeles River Watershed Metals

TMDL

14

14

14

7‐406

Shoup Effluent

Inclined Screen GSRD

US 101 26.0

34.167 118.615

4

Los Angeles River Trash TMDL Los Angeles River Watershed Bacteria

TMDL Los Angeles River Watershed Metals

TMDL

14

14

14

10‐300

209‐6T

None2

I‐5 10.348

37.747 ‐121.344

5


3

12‐329

1149L Inlet

Bioretention

SR‐73 23.6

33.640 ‐117.861

8

San Diego Creek and Newport Bay, including Rhine Channel Metals (Cu, Pb, Zn) TMDL

San Diego Creek and Upper Newport Bay

Cadmium TMDL San Diego Creek Watershed,

Organochlorine Compounds and PCBs TMDL

3 2 1

156


Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

12‐330

1149L Outlet

Bioretention

SR‐73 23.6

33.640 ‐117.861

8





3 2 1

12‐335

1194R Inlet

Austin Sand Filter

SR‐73 24.7

33.653 ‐117.862

8





3 2 1

12‐336

1194R Outlet

Austin Sand Filter

SR‐73 24.7

33.653 ‐117.862

8





3 2 1

157


Site ID Number

Site Name

BMP Type

Roadway Post Mile



TMDL(s)

TMDL Reach No.

Sites canceled after the start of the wet season.

3‐402

Cache Creek Influent

Vegetated Swale

I‐5 8.26

38.697 ‐121.765

5

Cache Creek, Bear Creek, Sulphur Creek, and Harley Gulch Mercury TMDL

1

3‐403

Cache Creek Effluent

Vegetated Swale

I‐5 8.26

38.696 ‐121.761

5

Cache Creek, Bear Creek, Sulphur Creek, and Harley Gulch Mercury TMDL

1

4‐324

I‐80/880/580 IC,

Basin 5

Bioretention

I‐580

46.526R

37.828 ‐122.294

4


12

12

4‐410

Livermore, (I‐580) BMP

Bioswale

I‐580 11.048

37.703 ‐121.747

4


13

14

4‐411

Livermore, (I‐580) BMP

Bioswale

1‐580 11.048

37.703 ‐121.747

4


13

14 Notes: 1. Latitude and longitude numbers have been rounded for reporting purposes. 2. TMDL characterization site. 3. CSF = Compost Stormwater Filter BMP 4. Shasta River Dissolved Oxygen and Temperature TMDL is not listed in the Annual Report.

158


159

Figure 3.01. TMDL Watersheds with Caltrans Monitoring Sites Notes: 1. Blue shading indicates a TMDL watershed where Caltrans has been assigned a WLA. 2. Orange shading indicates a TMDL watershed where Caltrans has been assigned a WLA and had an active

monitoring site for the 2016–17 wet season. A watershed may have more than one TMDL.


160

Three Tier 1 Project sites, Sites 3-403, 4-324, 4-411, were actively monitored at the start of the 2016–17 wet season but monitoring at these sites was later canceled. Monitoring at Site 3-403 was canceled due to a lack of flow observed at the site during most storm events. Monitoring at Sites 4-324 and 4-411 was canceled because the San Francisco Water Board no longer required monitoring at these. No storm events were captured at Sites 3-403 and 4-411. One storm event was captured at Site 4-324. Data for this storm event are provided in Appendix A. 3.1.2 Monitoring Approach The sample collection practices for the two TMDL monitoring projects are provided below: Chollas Creek Project. Water quality samples are collected via a combination of composite and grab samples. Grab samples are only used to collect microbiological and oil and grease samples. Tier 1 Project. In general, two different strategies are used to collect water quality samples. The strategy depends on whether the water quality samples were collected from a BMP effectiveness site or a characterization site: 1. BMP Effectiveness Sites. Automated, flow-weighted composite samples are collected at

both the influent to the BMP and the effluent from the BMP for the entire event, or up to a maximum of 36 hours (unless, under certain circumstances, as directed by the Caltrans Task Order Manager). Microbiological and oil and grease samples are collected via a grab sample.

2. Characterization Site. Time-weighted, composite samples are collected manually (i.e., grab samples) for a 3-hour period during a storm event. Flow measurements are estimated during the same 3-hour period.

The four TMDL sites in District 12 did not use the two strategies above. Instead, the District 12 sites continued to use the same strategy from the 2015–16 wet season. The strategy is described below:


161

1. Two storms per season were planned for flow-weighted composite sampling using automatic equipment for the first 3 hours of discharge, with flow data being recorded for the full duration of the event.

2. One storm per season was planned for flow-weighted composite sampling for

the entire storm duration using automatic sampling. 3. One storm per season was planned for obtaining at least three discrete grab

samples collected manually during each of the first 3 hours of the event’s discharge and compositing them into a single flow-weighted sample. These manual grab samples are collected during the same storm event described in monitoring strategy #2 above.

3.1.3 Monitoring Projects on Hold Two TMDL monitoring projects were on hold for the 2016–17 wet season: 1. District 8 Coachella Valley TMDL Monitoring Project

2. Rainbow Creek TMDL Monitoring Project These two TMDL monitoring projects are discussed below. District 8 Coachella Valley TMDL Monitoring Project. After 2 years of monitoring that concluded at the start of the 2015–16 wet season, Caltrans submitted its required monitoring report to the Colorado River Basin Water Board in November 2015. The monitoring report concludes that it is highly unlikely that Caltrans facilities represented by the monitoring sites have been responsible for contribution of bacteria to the Coachella Valley Stormwater Channel due to not enough runoff reaching the channel.


162

At the time the monitoring report was submitted, Caltrans requested from the Colorado River Basin Regional Water Board to be removed from the TMDL due to lack of connectivity. The Colorado River Basin Regional Water Board responded on January 6, 2016 indicating that it was too early to determine exclusion of any groups/individuals from the responsible party list. No further work is anticipated at this time until the Colorado River Basin Regional Water Board makes a determination of exclusion. The Phase I monitoring effort is complete. Caltrans is waiting for direction from the Colorado River Basin Regional Water Board on the next phase of the TMDL. Rainbow Creek TMDL Monitoring Project. After 4 years of monitoring, Caltrans submitted a letter with a document that summarized the monitoring activities to the San Diego Basin Regional Water Board in February 2017. The document concludes that its runoff did not meet the 2013 and 2017 Nitrogen WLAs and is slightly in excess of the 2021 Nitrogen WLA. Caltrans runoff did not meet the 2013 Phosphorus WLA, but Caltrans runoff is well below the 2017 and 2021 Phosphorus WLA. The difference between the Caltrans result and the WLA are within normal limits of data variability and there is no consistent trend in the data. A comparison of Caltrans runoff concentrations with the upstream and downstream receiving water locations indicate that it is unlikely Caltrans discharges are providing significant nutrient contributions to Rainbow Creek. The Caltrans drainage area contains no known sources of nutrients, makes up approximately 2 percent of the total watershed, and is bordered by commercial growers, nurseries and orchards—operations that take up 21 percent of the watershed. Soil tests have shown that the installation of an infiltration-type BMP is not practical. Caltrans has requested that the San Diego Basin Regional Water Board adjust the permitting language accordingly based on the monitoring report conclusions. The San Diego Basin Regional Water Board responded to Caltrans indicating that it supports a reduction in monitoring frequency to once per permit term, see letter in Appendix E–Communications with the State Water Board and Regional Water Boards. The letter stipulates that the next reporting period for Caltrans is October 1, 2020 to September 30, 2021.


163

3.2 RESULTS The TMDL monitoring results are presented in data tables. The list of constituents varies from site to site depending on the applicable TMDL. Results from QA/QC samples, e.g., field blanks, field duplicates, etc., are not included in these tables. Results for field duplicates are used for QA/QC purposes only—the results of the original sample and field duplicate sample are not averaged together. All water quality data, including QA/QC sample results, are provided in Appendix A. Each data table contains applicable TMDL limits, California Toxics Rule (CTR) values, and water quality control plan (Basin Plan) values. Water quality results are directly compared to TMDLs with concentration-based WLAs and not compared to TMDLs with mass-based WLAs. The concentration-based WLAs for the San Diego Creek and Newport Bay, including Rhine Channel Metals (Cu, Pb, Zn) TMDL and the San Diego Creek and Upper Newport Bay Cadmium TMDL vary based on flow. The flow values are not available, therefore, comparisons are not made. The water quality results are not directly compared to CTR values and water quality objectives in basin plans because these are not directly applicable to stormwater discharges. These values are included in this report as reference values for informational purposes. 3.2.1 Storm Event Summary The number of storm events forecasted, false starts, and successfully captured for the TMDL sites are presented in Tables 3.04 and 3.05. The cumulative number of storm events captured over the past wet seasons are presented in Table 3.06.


164

Table 3.04. 2016–17 Storm Event Sampling Summary for Chollas Creek Project

Site ID


Events1,2

Number of Non-

mobilized Storm Events3,6


Storm Events4,6


Captured Storm Events5,6

11-340 4 1 1 2

11-341 4 1 1 2

11-343 4 1 1 2

11-344 4 1 1 2

11-346 4 1 1 2

11-350 4 1 1 2

11-351 4 1 1 27

11-352 4 1 1 2

11-353 4 1 1 2

11-355 4 1 1 2

11-356 4 1 1 2 Notes: 1. Forecasted storm events met or exceeded 0.5-inch precipitation with a probability of 75 percent or greater. 2. Notice to Proceed received from Caltrans on January 13, 2017. Storm events that occurred prior to this date

are not included in the event totals. 3. A non-mobilized storm event occurs when a forecasted storm event fails to meet the mobilization criteria at

the point in time when a “Go” or “No-Go” decision needs to be made. 4. A false start is a storm event that met the criteria for mobilization, but samples were not collected due to

insufficient runoff or equipment issues. 5. A successfully captured storm event is a storm event that met the criteria and samples were sent to the

laboratory for analysis. 6. Number of Non-mobilized Storm Events + Number of False Start Storm Events + Number of Successfully

Captured Storm Events = Number of Forecasted Events. 7. No measurable flows occurred at modular infiltration BMP effluent station 11-351 during the second

monitoring event because the BMP fully retained/treated runoff volume. However, the paired inlet station, 11-350, was successfully sampled and submitted for analysis and is therefore considered a successful event.


165

Table 3.05. 2016–17 Storm Event Sampling Summary for Tier 1 Project

Site ID


Events

Number of Non-



Storm Events2, 4



1-341 19 15 1 3

1-342 14 10 1 3

2-303 15 12 0 3

2-304 15 12 0 3

2-305 18 16 1 1

2-306 13 10 0 3

3-397 17 13 1 3

3-404 15 10 2 3

3-405 15 10 2 3

4-349 15 11 1 3

4-350 15 11 1 3

4-351 15 12 0 3

4-405 15 11 1 3

4-406 15 11 1 3

4-407 22 19 1 2

4-412 15 11 1 3

4-413 15 11 1 3

4-414 15 13 0 2

4-415 15 13 0 2

5-306 7 3 1 3

5-307 22 18 2 2

5-308 22 18 2 2

7-08 10 6 1 3

7-09 10 6 1 3

7-201 10 6 1 3

7-336 10 6 1 3

7-404 10 6 1 3

7-405 10 6 1 3

7-406 10 6 1 3

10-300 18 16 0 2


166

Table 3.05. (cont’d)

Site ID


Events

Number of Non-



Storm Events2, 4



12-329 10 7 0 3

12-330 10 7 0 3

12-335 10 7 0 3

12-336 10 7 0 3 Notes: 1. A non-mobilized storm event occurs when either: (1) a forecasted storm event fails to meet the mobilization

criteria at the point in time when a “Go” or “No-Go” decision needs to be made, or (2) installation of monitoring equipment has not yet occurred at a monitoring site.

2. A false start is a storm event that met the criteria for mobilization, but samples were not collected due to insufficient runoff or equipment issues.

3. A successfully captured storm event is a storm event that met the criteria and samples were sent to the laboratory for analysis.

4. Number of Non-mobilized Storm Events + Number of False Start Storm Events + Number of Successfully Captured Storm Events = Number of Forecasted Events.

Table 3.06. Cumulative Number of Storm Events Captured at Chollas Creek Sites

Station ID

2016–17 Number of Successfully Captured Storm Events

Cumulative Number of Successfully Captured Storm Events

Target Number of

Storm Events1

11-340 2 8 9

11-341 2 8 9

11-343 2 2 6

11-344 2 2 6

11-346 2 3 6

11-350 2 2 3

11-351 2 2 3

11-352 2 2 3

11-353 2 2 3

11-355 2 2 3

11-356 2 2 3 Notes: 1. Target Number of Storm Events. This column is based on 3 storm events per wet season.


167

Table 3.07. Cumulative Number of Storm Events Captured at Tier 1 Project Sites

Station ID


Cumulative Number of Successfully Captured Storm Events1

Target Number of

Storm Events2

1-341 3 3 3

1-342 3 3 3

2-303 3 3 3

2-304 3 3 3

2-305 1 1 3

2-306 3 3 3

3-397 3 6 6

3-404 3 3 3

3-405 3 3 3

4-349 3 9 12

4-350 3 8 12

4-351 3 9 12

4-405 3 3 3

4-406 3 3 3

4-407 2 2 3

4-412 3 3 3

4-413 3 3 3

4-414 2 2 3

4-415 2 2 3

5-306 3 3 3

5-307 2 3 3

5-308 2 3 3

7-08 3 9 12

7-09 3 9 12

7-201 3 10 12

7-336 3 10 12

7-404 3 10 12

7-405 3 10 12

7-406 3 3 3

10-300 2 9 12


168

Table 3.07. (cont’d)

Station ID


Cumulative Number of Successfully Captured Storm Events1

Target Number of

Storm Events2

12-329 3 11 12

12-330 3 11 12

12-335 3 10 12

12-336 3 10 12 Notes: 1. Cumulative Number of Successfully Captured Storm Events. This column only includes storm events captured

during the current Permit term. 2. Target Number of Storm Events. This column is based on 3 storm events per wet season.

3.2.2 Chollas Creek Project Sites Table 3.08 presents a summary of the storm event sampling conducted at the Chollas Creek Project sites during the 2016–17 wet season. Table 3.08. Chollas Creek Project Sites

Site ID

Site Name

Event 2/17/2017

Event 5/7/2017

11-340 28th Street Influent

11-341 28th Street Effluent

11-343 I-15S/SR94-INF

11-344 I-15S/SR94-EFF

11-346 I-15S/Market-EFF

11-350 SR94E/Bridge-INF

11-351 SR94E/Bridge-EFF

11-352 SR94E/Mass-INF

11-353 SR94E/Mass-EFF

11-355 RW-NF1

11-356 RW-SF1 Notes: 1. Receiving water site.


169

Tables 3.09a through 3.09j present the monitoring results for the Chollas Creek Project sites. Any results in these data tables greater than the TMDL values are highlighted in green. For the 2014–15 MRR, if a field duplicate was collected for a storm event, the results presented in the data tables were the average of the original sample and duplicate sample. For the 2015–16 and 2016–17 MRRs, only the original values are presented in the data tables. Both the original value and any field duplicate value are provided in Appendix A.


170


Table 3.09a. Results for Chollas Creek TMDL Site 11-340 (28th Street Influent)Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL

Event Event

Units 2/17/2017 5/7/2017

TMDL Specific Constituents

Diazinon ng/L ND ND

Copper, dissolved µg/L 7.6 14

Lead, dissolved µg/L 0.8 2.4

Zinc, dissolved µg/L 28 66

Field Measurements

pH pH units 6.73 6.66



Average Flow Rate gpm 24.2 7.9

Bacteria


Conventionals

Hardness as CaCO3 mg/L 19 27

Nitrate as N mg/L 0.18 0.26

Oil & Grease mg/L 3 4

Total Dissolved Solids mg/L 8 44

Total Kjeldahl Nitrogen mg/L 0.7 1.23

Total Phosphorus mg/L 0.1 0.14


Total Organic Carbon mg/L 9.16 12.6

Dissolved Organic Carbon mg/L 6.68 11.4

Elements

Aluminum, total µg/L 1200 21


Copper, total µg/L 19 36

Iron, total µg/L 980 27

Lead, total µg/L 33 23

Zinc, total µg/L 78 170

Toxicity

Constituent1

171

Table 3.09a. (cont'd)Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL

Event Event

Units 2/17/2017 5/7/2017Constituent1

Chronic Toxicity, Biomass P/F PASS FAIL

Chronic Toxicity, Survival P/F PASS PASS





Benz(a)anthracene ng/L ND ND


Benzo(b)fluoranthene ng/L ND ND

Benzo(g,h,i)perylene ng/L ND ND


Chrysene ng/L ND ND


Fluoranthene ng/L ND ND

Fluorene ng/L ND ND



Phenanthrene ng/L ND ND

Pyrene ng/L ND ND

172

Table 3.09b. Results for Chollas Creek TMDL Site 11-341 (28th Street Effluent)Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL

Event Event TMDL CTR Basin Plan

Units 2/17/2017 5/7/2017 Limits1,2,3 Values Values


Diazinon ng/L ND ND 72 72

Copper, dissolved µg/L 6.7 12 11 12 12

Lead, dissolved µg/L 1 1.5 52 58 58

Zinc, dissolved µg/L 11 14 97 108 108

Field Measurements

pH pH units 6.78 6.76 6.5 to 8.5




Bacteria


Conventionals









Reference Values4,5

Constituent1

173

Table 3.09b. (cont'd)Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL



Reference Values4,5

Constituent1


Elements


Chromium, total µg/L 2.4 2.5 1605

Copper, total µg/L 11 19 13


Lead, total µg/L 13 9 72

Zinc, total µg/L 28 35 110

Toxicity

Chronic Toxicity, Biomass P/F FAIL PASS

Chronic Toxicity, Survival P/F FAIL PASS










Chrysene ng/L ND ND

174

Table 3.09b. (cont'd)Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL



Reference Values4,5

Constituent1



Fluorene ng/L ND ND




Pyrene ng/L ND ND

175


176

Table 3.09c. Results for Chollas Creek TMDL Site 11-343 (I-15S/SR94-INF)

Chollas Creek Diazinon TMDL, Chollas Creek Dissolved Metals TMDL

Event Event

Units 2/17/2017 5/7/2017


Diazinon ng/L ND ND




Field Measurements





Bacteria

Fecal Coliform MPN/100mL 13000 ND

Conventionals



Oil & Grease mg/L ND ND







Elements


Chromium, total µg/L 4.3 2



Lead, total µg/L 12 7.6


Toxicity

Constituent1

177



Event Event


Chronic Toxicity, Biomass P/F FAIL FAIL











Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND

178

Table 3.09d. Results for Chollas Creek TMDL Site 11-344 (I-15S/SR94-EFF)






Copper, dissolved µg/L 11 25 11 12 12

Lead, dissolved µg/L 0.1 0.3 52 58 58


Field Measurements

pH pH units 7.48 6.83 6.5 to 8.5


Specific Conductivity µS/cm 99 29.4


Bacteria


Conventionals









Reference Values4,5

Constituent1

179





Reference Values4,5

Constituent1


Elements





Lead, total µg/L 9.7 6.3 72


Toxicity


Chronic Toxicity, Survival P/F PASS FAIL










Chrysene ng/L ND ND

180





Reference Values4,5

Constituent1



Fluorene ng/L ND ND




Pyrene ng/L ND ND

181


182

Table 3.09e. Results for Chollas Creek TMDL Site 11-346 (I-15S/Market-EFF)






Copper, dissolved µg/L 6.2 18 11 12 12



Field Measurements

pH pH units 6.03 6.64 6.5 to 8.5




Bacteria


Conventionals








Total Organic Carbon mg/L 11.4 18

Reference Values4,5

Constituent1

183





Reference Values4,5

Constituent1


Elements


Chromium, total µg/L 5.2 1 1605





Toxicity


Chronic Toxicity, Survival P/F FAIL FAIL










Chrysene ng/L ND ND

184





Reference Values4,5

Constituent1



Fluorene ng/L ND ND




Pyrene ng/L ND ND

185


186

Table 3.09f. Results for Chollas Creek TMDL Site 11-350 (SR94E/Bridge-INF)


Event Event

Units 2/17/2017 5/7/2017


Diazinon ng/L ND ND




Field Measurements





Bacteria


Conventionals










Elements







Toxicity

Constituent1

187



Event Event


Chronic Toxicity, Biomass P/F PASS FAIL

Chronic Toxicity, Survival P/F PASS FAIL










Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND

188

Table 3.09g. Results for Chollas Creek TMDL Site 11-351 (SR94E/Bridge-EFF)





Diazinon ng/L ND See Note 6 72 72

Copper, dissolved µg/L 8 See Note 6 11 12 12

Lead, dissolved µg/L 0.1 See Note 6 52 58 58

Zinc, dissolved µg/L 10 See Note 6 97 108 108

Field Measurements

pH pH units 7.54 See Note 6 6.5 to 8.5

Temperature oC 15.06 See Note 6

Specific Conductivity µS/cm 321 See Note 6

Average Flow Rate gpm 6.4 See Note 6

Bacteria

Fecal Coliform MPN/100mL 1600 See Note 6

Conventionals

Hardness as CaCO3 mg/L 73 See Note 6

Nitrate as N mg/L 1.75 See Note 6

Oil & Grease mg/L ND See Note 6

Total Dissolved Solids mg/L 184 See Note 6

Total Kjeldahl Nitrogen mg/L 0.2 See Note 6

Total Phosphorus mg/L 0.08 See Note 6

Total Suspended Solids mg/L 6 See Note 6

Total Organic Carbon mg/L 16.3 See Note 6

Constituent1

Reference Values4,5

189




Units 2/17/2017 5/7/2017 Limits1,2,3 Values ValuesConstituent1

Reference Values4,5

Dissolved Organic Carbon mg/L 15.5 See Note 6

Elements

Aluminum, total µg/L 460 See Note 6

Chromium, total µg/L 4.4 See Note 6 1605

Copper, total µg/L 14 See Note 6 13

Iron, total µg/L 530 See Note 6

Lead, total µg/L 3.6 See Note 6 72

Zinc, total µg/L 20 See Note 6 110

Toxicity

Chronic Toxicity, Biomass P/F FAIL See Note 6

Chronic Toxicity, Survival P/F PASS See Note 6


Acenaphthene ng/L ND See Note 6

Acenaphthylene ng/L ND See Note 6

Anthracene ng/L ND See Note 6

Benz(a)anthracene ng/L ND See Note 6

Benzo(a)pyrene ng/L ND See Note 6

Benzo(b)fluoranthene ng/L ND See Note 6

Benzo(g,h,i)perylene ng/L ND See Note 6

Benzo(k)fluoranthene ng/L ND See Note 6

Chrysene ng/L ND See Note 6

190




Units 2/17/2017 5/7/2017 Limits1,2,3 Values ValuesConstituent1

Reference Values4,5

Dibenz(a,h)anthracene ng/L ND See Note 6

Fluoranthene ng/L ND See Note 6

Fluorene ng/L ND See Note 6

Indeno(1,2,3-c,d)pyrene ng/L ND See Note 6

Naphthalene ng/L ND See Note 6

Phenanthrene ng/L ND See Note 6

Pyrene ng/L ND See Note 6

191


192

Table 3.09h. Results for Chollas Creek TMDL Site 11-352 (SR94E/Mass-INF)


Event Event

Units 2/17/2017 5/7/2017


Diazinon ng/L ND ND




Field Measurements





Bacteria


Conventionals








Total Organic Carbon mg/L 10.7 19


Elements







Toxicity

Constituent1

193

Table 3.09h. (cont'd)


Event Event



Chronic Toxicity, Survival P/F FAIL FAIL










Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND

194

Table 3.09i. Results for Chollas Creek TMDL Site 11-353 (SR94E/Mass-EFF)






Copper, dissolved µg/L 5.6 8.6 11 12 12



Field Measurements

pH pH units 7.35 7.31 6.5 to 8.5




Bacteria


Conventionals









Reference Values4,5

Constituent1

195

Table 3.09i. (cont'd)




Reference Values4,5

Constituent1


Elements



Copper, total µg/L 6.3 11 13




Toxicity

Chronic Toxicity, Biomass P/F PASS PASS











Chrysene ng/L ND ND

196

Table 3.09i. (cont'd)




Reference Values4,5

Constituent1



Fluorene ng/L ND ND




Pyrene ng/L ND ND

197


198

Table 3.09j. Results for Chollas Creek TMDL Receiving Water Sites



Units 2/17/2017 5/7/2017 2/17/2017 5/7/2017

Field Measurements

pH pH units 7.65 7.32 7.39 7.81

Temperature oC 17.2 14.9 16.5 15.35

Specific Conductivity µS/cm 257.1 122 689.2 293

Conventionals

Hardness as CaCO3 mg/L 37 58 190 130

Calcium, Total mg/L 9.66 15.3 38.4 26.9

Magnesium, total mg/L 3.21 5.53 21.7 14.6

Sodium, Total mg/L 10.4 19.0 97.0 61.7

Sulfate mg/L 10.7 139 74.3 63.8

Potassium mg/L 2.89 4.35 8.23 4.49

Chloride, Dissolved mg/L 10.3 124 176 195

Alkalinity as CaCO3 mg/L 28 ND ND ND

Alkalinity, Bicarbonate mg/L 28 34 104 44

Alkalinity, Hydroxide mg/L ND ND ND ND

Dissolved Organic Carbon mg/L 12.1 11 42.7 14.4

Constituent1

RW-NF

11-355 11-356

RW-SF

199

Table 3.09a, b, c, d, e, f, g, h, i, j. (cont’d) Abbreviations and Acronyms:

P/F = Pass/Fail ND = Non-detect

Notes: 1. Chollas Creek Diazinon TMDL. The concentration-based waste load allocation for diazinon is 0.072 µg/L, or 72 ng/L, for acute (1-hour average) conditions

and 0.045 µg/L for chronic (4-day average) conditions. 2. Chollas Creek Dissolved Copper, Lead and Zinc TMDLs. The concentration-based waste load allocations for dissolved copper, lead and zinc are set as the

acute and chronic limits in the CTR times 90 percent and based on statistical measures of hardness. The waste load allocations in this table are for the acute condition and calculated based on an assumed hardness of the receiving water of 90.8 mg/L. Only results greater than the acute values are highlighted.

3. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water Permit. Only results greater than the acute value are highlighted.

4. CTR metals objectives based on hardness of receiving water. Hardness cap of 400 mg/L used as required in CTR. 5. See Appendix D–Water Quality Reference Values for TMDL Sites. 6. The May 7, 2017 storm event did not produce effluent flow at Site 11-351 (SR94E/Bridge-EFF).

200


201

3.2.3 Tier 1 Project Sites The list of Tier 1 Project sites is divided into four groups. Each group of sites is monitored by a specific monitoring contractor. Tables 3.10 through 3.13 summarize the storm event sampling conducted at the Tier 1 Project sites during the 2016–17 wet season. Table 3.10. Tier 1 Project Sites – Group 11

Site ID

Site Name

Event #1 Date

Event #2 Date

Event #3 Date

1-341 Weott North, Humboldt 11/18/2016 12/13/2016 4/6/2017

1-342 Myers Flat, Humboldt 11/18/2016 1/18/2017 2/16/2017

4-349 Carquinez Bridge, So. 10/14/2016 10/27/2016 2/1/2017

4-350 I-680/24 Interchange 10/14/2016 12/13/2016 1/18/2017

4-351 I-580/680 Interchange 10/14/2016 11/19/2016 12/13/2016

4-407 Marin Hwy 131 11/19/2016 1/18/2017 NA

4-412 4-Sol-12-0.945-INF 2/1/2017 3/20/2017 4/6/2017

4-413 4-Sol-12-0.945-EFF 2/1/2017 3/20/2017 4/6/2017

4-414 4-CC-4-23.9-INF 3/20/2017 4/6/2017 NA

4-415 4-CC-4-23.9-EFF 3/20/2017 4/6/2017 NA

5-306 Santa Cruz HWY 1/17 IC 10/27/2016 12/7/2016 1/18/2017

5-307 Santa Cruz SB HWY 1 Effluent 2/1/2017 4/6/2017 NA

5-308 Santa Cruz SB HWY 1 Effluent 2/1/2017 4/6/2017 NA Acronyms & Abbreviations:

NA = Not Applicable Notes: 1. Monitoring canceled at Sites 4-324 (I-80/880/580 IC, Basin 5), 4-410 (Livermore, (I-580) BMP) and 4-411

(Livermore, (I-580) BMP) after the start of the wet season—see Section 3.1.1. One storm event was captured at Site 4-324 (I-80/880/580 IC, Basin 5) on 12-13-2016, and no storm events were captured at Sites 4-410 (Livermore, (I-580) BMP) and 4-411 (Livermore, (I-580) BMP). Data for Site 4-324 (I-80/880/580 IC, Basin 5) is included in Appendix A.


202

Table3.11.Tier1ProjectSites–Group21

Site ID Site Name

Event #1 Date

Event #2 Date

Event #3 Date

2‐303 Shasta River Influent 10/24/2016 12/13/2016 2/16/2017

2‐304 Shasta River Effluent 10/24/2016 12/13/2016 2/16/2017

2‐305 Lost River 12/13/2016 NA NA

2‐306 Mad River 10/24/2016 12/13/2016 1/18/2017

3‐397 I‐5 SB @ Consumnes 12/15/2016 1/18/2017 4/6/2017

3‐404 Truckee River Influent 12/15/2016 2/16/2017 3/9/2017

3‐405 Truckee River Effluent 12/15/2016 2/16/2017 3/9/2017

4‐405 Antioch Influent 12/15/2016 1/18/2017 2/16/2017

4‐406 Antioch Effluent 12/15/2016 1/18/2017 2/16/2017

10‐300 209‐6T 12/15/2016 1/18/2017 NA Acronyms & Abbreviations:

NA = Not Applicable Notes: 1. Monitoring canceled at Site 3‐402 (Cache Creek Influent) and Site 3‐403 (Cache Creek Effluent) after the start

of the wet season—see Section 3.1.1 (Table 3.03). No storm events were captured at these sites.

Table3.12.Tier1ProjectSites–Group3

Site ID

Site Name

Event #1 Date

Event #2 Date

Event #3 Date

7‐08 North Hollywood CSF Influent 11/20/2016 12/15/2016 1/9/2017

7‐09 North Hollywood CSF Effluent 11/20/2016 12/15/2016 1/9/2017

7‐201 UCLA‐1 Effluent 11/20/2016 12/15/2016 1/9/2017

7‐336 SMB‐MC 11/20/2016 12/15/2016 1/9/2017

7‐404 UCLA‐1 Influent 11/20/2016 12/15/2016 1/9/2017

7‐405 Shoup Influent 11/20/2016 12/15/2016 1/9/2017

7‐406 Shoup Effluent 11/20/2016 12/15/2016 1/9/2017


203

Table 3.13. Tier 1 Project Sites – Group 4

Site ID Site

Name Event #1

Date Event #2

Date Event #3

Date

12-329 1149L Inlet 11/20/2016 12/15/2016 1/9/2017

12-330 1149L Outlet 11/20/2016 12/15/2016 1/9/2017

12-335 1194R Inlet 11/20/2016 12/15/2016 1/9/2017

12-336 1194R Outlet 11/20/2016 12/15/2016 1/9/2017

Tables 3.14 through 3.29d present the monitoring results for the Tier 1 Project sites. Previously in the 2014–15 MRR, if a field duplicate sample was collected for a storm event, the results presented in the data tables were the average of the original sample and duplicate sample. For the 2015–16 and 2016–17 MRRs, only the original values are presented in the data tables. Both the original value and any field duplicate value are provided in Appendix A.


204


Table 3.14. Results for Tier 1 Project Site 1-341 (1-Hum-101-37.334)


Event Event Event TMDL CTR Basin Plan

Units 11/18/2016 12/13/2016 4/6/2017 Limits Values Values


Suspended Sediment Concentration mg/L 155 41 18 See Notes 1,2

Temperature oC 10.6 8.5 11.9 See Notes 1,2

Field Measurements

pH pH units 7.55 7.49 7.29 6.5 - 8.5

Average Flow Rate gpm 13.4 11.3 55.1

Conventionals

Hardness as CaCO3 mg/L 8 8 8

Nitrate as N mg/L 0.037 ND ND 10

Oil & Grease mg/L 1.9 ND 1.5

Total Dissolved Solids mg/L 19 40 6

Total Kjeldahl Nitrogen mg/L 0.57 1.1 0.57

Total Phosphorus mg/L 0.047 0.022 0.031


Bacteria

Fecal Coliform MPN/100mL 49 170 See Note 5

Elements

Aluminum, total µg/L 200 190 230 1000


Copper, total µg/L 3.2 3 2.7 13

Iron, total µg/L 330 330 340

Reference Values3,4

Constituent

205

Table 3.14. (cont'd)




Reference Values3,4

Constituent

Lead, total µg/L 0.53 0.33 0.33 65 50

Zinc, total µg/L 33 30 30 120

Toxicity 6

Chronic Toxicity, Biomass P/F Fail Fail Fail

Chronic Toxicity, Survival P/F Pass Pass Pass

















206





Reference Values3,4

Constituent


Total PAHs ng/L ND ND ND

207

Table 3.14. (cont’d) Abbreviations and Acronyms:


Notes: 1. Lower Eel River Sediment & Temperature TMDL. The waste load allocation for the sediment TMDL assigned to Caltrans is expressed as equivalent to the

load locations in tons/mi2/yr. The waste load allocation for the temperature TMDL assigned to Caltrans is zero net increase in receiving water temperature.

2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water Permit.

3. CTR metals objectives based on hardness of receiving water. Hardness cap of 400 mg/L used as required in CTR. For water bodies classified as estuarine, most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table.

4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Field crews collected a sample for bacteria analysis at Site 1-341 (1-Hum-101-37.334) for the 4-06-2017 storm event (SE #3). However, due to sampling

timing, the analysis would have occurred out of holding time. Therefore, a decision was made not to submit the sample to the laboratory for analysis. There are no Fecal Coliform results to report for this storm event.

6. Toxicity single species is Fathead Minnows.

208

Table 3.15. Results for Tier 1 Project Site 1-342 (1-Hum-101-27.673)





Suspended Sediment Concentration mg/L 8.3 54 3.3 See Notes 1,2

Temperature oC 11.1 8.5 11.3 See Notes 1,2

Field Measurements

pH pH units 7.63 8.47 7.02 6.5 - 8.5


Conventionals


Nitrate as N mg/L 0.16 0.089 0.067 10

Oil & Grease mg/L 2.2 1.9 ND

Total Dissolved Solids mg/L 12 ND 6




Bacteria

Fecal Coliform MPN/100mL 140 46 See Note 5

Elements


Chromium, total µg/L 1 1 0.71

Copper, total µg/L 3.5 3.4 2.9 13


Reference Values3,4

Constituent

209





Reference Values3,4

Constituent

Lead, total µg/L 0.33 0.72 0.28 65 50


Toxicity 6

Chronic Toxicity, Biomass P/F Fail Pass Fail


















210





Reference Values3,4

Constituent

Pyrene ng/L ND 35.3 22.6

Total PAHs ng/L ND 35.3 22.6

211



Notes: 1. Lower Eel River Sediment & Temperature TMDL. The waste load allocation for the sediment TMDL assigned to Caltrans is expressed as equivalent to the

load locations in tons/mi2/yr. The waste load allocation for the temperature TMDL assigned to Caltrans is zero net increase in receiving water temperature.

2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water Permit.


4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Field crews decided not to collect a sample for bacteria analysis at Site 1-342 (1-Hum-101-27.673) for the 2-16-2017 storm event (SE #3) due to sampling

timing. The field crews believed that the analysis would have occurred outside of the hold time. There are no Fecal Coliform results to report for this storm event.

6. Toxicity species is a Fathead minnow.

212

Table 3.16a. Results for Tier 1 Project Site 4-349 (Carquinez Bridge, South)

San Francisco Bay Mercury TMDL, San Francisco Bay PCBs TMDL




Mercury µg/L 0.061 0.014 0.083 See Notes 1,3

Methyl Mercury ng/L 0.67 0.17 See Note 6 See Notes 1,3

Suspended Sediment Concentration mg/L 115 46 74

PCB 005/8 ng/L 0.23 0.0914 0.292 See Notes 2,3

PCB 018 ng/L 0.534 0.177 0.456 See Notes 2,3

PCB 020/21/33 ng/L 0.282 0.139 0.457 See Notes 2,3

PCB 028 ng/L 0.436 0.23 0.587 See Notes 2,3

PCB 031 ng/L 0.448 0.182 0.603 See Notes 2,3

PCB 043/49 ng/L 0.306 0.141 0.314 See Notes 2,3

PCB 044 ng/L 0.443 0.205 0.436 See Notes 2,3

PCB 052/69 ng/L 0.448 0.208 0.462 See Notes 2,3

PCB 056/60 ng/L 0.215 0.108 0.201 See Notes 2,3

PCB 061/70 ng/L 0.489 0.203 0.411 See Notes 2,3

PCB 066/76 ng/L 0.343 0.142 0.304 See Notes 2,3

PCB 074 ng/L 0.176 0.0752 0.166 See Notes 2,3

PCB 087/117/125 ng/L 0.374 0.136 0.245 See Notes 2,3

PCB 090/101 ng/L 0.824 0.291 0.574 See Notes 2,3

PCB 095/98/102 ng/L 0.605 0.216 0.426 See Notes 2,3

PCB 097 ng/L 0.262 0.0964 0.182 See Notes 2,3

PCB 099 ng/L 0.363 0.12 0.251 See Notes 2,3

Reference Values4,5

Constituent

213





Reference Values4,5

Constituent

PCB 105 ng/L 0.323 0.105 0.202 See Notes 2,3

PCB 106/118 ng/L 0.781 0.29 0.533 See Notes 2,3

PCB 110 ng/L 0.931 0.352 0.618 See Notes 2,3

PCB 128/162 ng/L 0.129 0.0561 0.0925 See Notes 2,3

PCB 132/161 ng/L 0.233 0.094 0.165 See Notes 2,3

PCB 138/163/164 ng/L 0.891 0.341 0.579 See Notes 2,3

PCB 139/149 ng/L 0.588 0.225 0.305 See Notes 2,3

PCB 141 ng/L 0.144 0.0637 0.0949 See Notes 2,3

PCB 151 ng/L 0.154 0.0597 0.079 See Notes 2,3

PCB 153 ng/L 0.665 0.269 0.434 See Notes 2,3

PCB 156 ng/L 0.0964 0.0353 0.0507 See Notes 2,3

PCB 158/160 ng/L 0.101 0.0413 0.0716 See Notes 2,3

PCB 170 ng/L 0.173 0.0758 0.129 See Notes 2,3

PCB 174 ng/L 0.195 0.0884 0.162 See Notes 2,3

PCB 177 ng/L 0.121 0.0522 0.0775 See Notes 2,3

PCB 180 ng/L 0.467 0.196 0.304 See Notes 2,3

PCB 182/187 ng/L 0.224 0.111 0.13 See Notes 2,3

PCB 183 ng/L 0.0987 0.0453 0.0478 See Notes 2,3

PCB 194 ng/L 0.101 0.0378 0.0806 See Notes 2,3

PCB 195 ng/L 0.0374 0.0186 0.0544 See Notes 2,3

PCB 196/203 ng/L 0.131 0.0941 ND See Notes 2,3

214





Reference Values4,5

Constituent

PCB 201 ng/L ND ND 0.0171 See Notes 2,3

Field Measurements

pH pH units 7.4 8.05 6.6 6.5 to 8.5



Bacteria

Fecal Coliform MPN/100mL 1600 See Note 7 920

Enterococcus MPN/100mL 2419.6 See Note 7 See Note 8 151

Conventionals


Nitrate as N mg/L 2 0.64 0.74

Oil & Grease mg/L 9.7 3.7 3.4





Elements

Aluminum, total µg/L 5900 780 1700

Chromium, total µg/L 26 5.7 8.9

Copper, total µg/L 190 42 42 18 18

Iron, total µg/L 11000 1600 3800

215





Reference Values4,5

Constituent

Lead, total µg/L 33 5 6.7 114 114

Zinc, total µg/L 930 210 200 150 150

Toxicity 9

Chronic Toxicity, Biomass P/F Fail Fail Pass

Chronic Toxicity, Survival P/F Fail Pass Pass












Fluoranthene ng/L 232 35.1 ND



Naphthalene ng/L ND 30 ND


216





Reference Values4,5

Constituent

Pyrene ng/L 329 65.8 ND

Total PAHs ng/L 561 130.9 ND

217


218

Table 3.16b. Results for Tier 1 Project Site 4-351 (I-580/80 Interchange)





Mercury µg/L 0.015 0.01 0.014 See Notes 1,3

Methyl Mercury ng/L 0.7 0.31 0.11 See Notes 1,3


PCB 005/8 ng/L ND 0.0499 0.23 See Notes 2,3

PCB 018 ng/L 0.0809 0.118 0.465 See Notes 2,3

PCB 020/21/33 ng/L 0.078 0.137 0.485 See Notes 2,3

PCB 028 ng/L 0.1 0.192 0.762 See Notes 2,3

PCB 031 ng/L 0.109 0.167 0.672 See Notes 2,3

PCB 043/49 ng/L 0.0663 0.152 0.481 See Notes 2,3

PCB 044 ng/L 0.102 0.216 0.746 See Notes 2,3

PCB 052/69 ng/L 0.123 0.212 0.812 See Notes 2,3

PCB 056/60 ng/L 0.0632 0.08 0.362 See Notes 2,3

PCB 061/70 ng/L 0.13 0.203 0.774 See Notes 2,3

PCB 066/76 ng/L 0.0809 0.131 0.504 See Notes 2,3

PCB 074 ng/L 0.0443 0.0823 0.285 See Notes 2,3

PCB 087/117/125 ng/L 0.0992 0.0965 0.547 See Notes 2,3

PCB 090/101 ng/L 0.25 0.239 1.41 See Notes 2,3

PCB 095/98/102 ng/L 0.155 0.178 0.979 See Notes 2,3

PCB 097 ng/L 0.0763 0.0722 0.389 See Notes 2,3

PCB 099 ng/L 0.105 0.0937 0.555 See Notes 2,3

Reference Values4,5

Constituent

219





Reference Values4,5

Constituent

PCB 105 ng/L 0.0867 0.0789 0.448 See Notes 2,3

PCB 106/118 ng/L 0.212 0.191 1.16 See Notes 2,3

PCB 110 ng/L 0.252 0.254 1.4 See Notes 2,3

PCB 128/162 ng/L 0.0434 0.0337 0.237 See Notes 2,3

PCB 132/161 ng/L 0.0665 0.0706 0.401 See Notes 2,3

PCB 138/163/164 ng/L 0.25 0.246 1.4 See Notes 2,3

PCB 139/149 ng/L 0.128 0.15 0.871 See Notes 2,3

PCB 141 ng/L 0.0415 0.044 0.26 See Notes 2,3

PCB 151 ng/L ND 0.0328 0.207 See Notes 2,3

PCB 153 ng/L 0.216 0.199 1.14 See Notes 2,3

PCB 156 ng/L 0.017 0.0215 0.131 See Notes 2,3

PCB 158/160 ng/L 0.0314 0.0268 0.167 See Notes 2,3

PCB 170 ng/L 0.062 0.0502 0.276 See Notes 2,3

PCB 174 ng/L 0.0575 0.0532 0.335 See Notes 2,3

PCB 177 ng/L 0.0339 0.0318 0.185 See Notes 2,3

PCB 180 ng/L 0.127 0.111 0.708 See Notes 2,3

PCB 182/187 ng/L 0.0617 0.0665 0.369 See Notes 2,3

PCB 183 ng/L 0.0255 0.0267 0.151 See Notes 2,3

PCB 194 ng/L 0.0354 0.0248 0.139 See Notes 2,3


PCB 196/203 ng/L 0.0349 0.0341 0.195 See Notes 2,3

220





Reference Values4,5

Constituent

PCB 201 ng/L 0.00979 0.0036 0.0318 See Notes 2,3

Field Measurements

pH pH units 7.02 6.93 6.6 6.5 to 8.5



Bacteria


Enterococcus MPN/100mL 2419.6 See Note 8 See Note 8 151

Conventionals



Oil & Grease mg/L 7 5.7 5.8





Elements


Chromium, total µg/L 8.7 4 4.5


Iron, total µg/L 2800 1200 1900

221





Reference Values4,5

Constituent

Lead, total µg/L 8.7 3.7 5 114 114

Zinc, total µg/L 390 150 160 150 150

Toxicity 9

Chronic Toxicity, Biomass P/F Fail Pass Pass













Fluoranthene ng/L 134 81.6 160





222





Reference Values4,5

Constituent

Pyrene ng/L 189 132 396

Total PAHs ng/L 323 214 556

223

Table 3.16a, b. (cont’d) Abbreviations and Acronyms:


Notes: 1. San Francisco Bay Mercury TMDL. There are no waste load allocations specific to Caltrans. Instead, Caltrans' waste load allocation is an unspecified

portion of the waste load allocation assigned to the city or municipal NPDES permit in which Caltrans' roads or facilities resides. 2. San Francisco Bay PCBs TMDL. All storm water runoff sources share a 2 kg/yr waste load allocation. 3. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water

Permit. 4. CTR metals objectives based on hardness of receiving water. Hardness cap of 400 mg/L used as required in CTR. For water bodies classified as estuarine,

most stringent of freshwater and saltwater criteria selected. Basin Plan freshwater acute values are presented in the table. 5. See Appendix D–Water Quality Reference Values for TMDL Sites. 6. Field crews collected and submitted the sample for methyl mercury analysis at Site 4-349 (Carquinez Bridge, South) for the 2-01-2017 storm event (SE #3).

However, the laboratory inadvertently stored the sample outside of the required temperature range. Therefore, the laboratory did not analyze the sample for methyl mercury. There are no results to report for this storm event.

7. Field crews collected and submitted the sample for bacteria analysis at Site 4-349 (Carquinez Bridge, South) for the 10-27-2016 storm event (SE #2). The sample was not delivered to the laboratory on time. Therefore, the laboratory did not perform the analysis. There are no bacteria results to report for this storm event.

8. Prior to the start of the 2-01-2017 storm event (SE #3), the distance between Site 4-349 (Carquinez Bridge, South) and the receiving water was measured to be greater than 300 feet. Prior to the start of the 11-19-2016 storm event (SE #2), the distance between Site 4-351 (I-580/80 Interchange) and the receiving water was measured to be greater than 300 feet. Therefore, the requirement to collect a sample for Enterococcus no longer applies at these sites.

9. Toxicity species to be used is Fathead minnow.

224

Table 3.17. Results for Tier 1 Project Site 4-350 (I-680/24 Interchange)

San Francisco Bay Mercury TMDL, San Francisco Bay PCBs TMDL, San Francisco Bay Urban Creeks Diazinon and Pesticide TMDL




Mercury µg/L 0.027 0.026 0.03 See Notes 1,4 2.4

Methyl Mercury ng/L 0.57 0.15 0.19 See Notes 1,4 0.05

Diazinon ng/L ND ND ND See Notes 2,4 100


PCB 005/8 ng/L ND 0.039 0.0339 See Notes 3,4

PCB 018 ng/L 0.0166 0.0596 0.0646 See Notes 3,4

PCB 020/21/33 ng/L 0.0131 0.0707 0.0513 See Notes 3,4

PCB 028 ng/L 0.016 0.0892 0.0721 See Notes 3,4

PCB 031 ng/L 0.0152 0.0812 0.064 See Notes 3,4

PCB 043/49 ng/L 0.0131 0.0641 0.0571 See Notes 3,4

PCB 044 ng/L 0.0218 0.112 0.0979 See Notes 3,4

PCB 052/69 ng/L 0.0275 0.135 0.121 See Notes 3,4

PCB 056/60 ng/L 0.0165 0.0729 0.0635 See Notes 3,4

PCB 061/70 ng/L 0.0397 0.162 0.149 See Notes 3,4

PCB 066/76 ng/L 0.0218 0.0911 0.0928 See Notes 3,4

PCB 074 ng/L 0.0114 0.0506 0.0458 See Notes 3,4

PCB 087/117/125 ng/L 0.0344 0.187 0.167 See Notes 3,4

PCB 090/101 ng/L 0.0855 0.445 0.399 See Notes 3,4

PCB 095/98/102 ng/L 0.0506 0.316 0.265 See Notes 3,4

PCB 097 ng/L 0.0255 0.134 0.108 See Notes 3,4

Reference Values5,6

Constituent

225





Reference Values5,6

Constituent

PCB 099 ng/L 0.0327 0.16 0.151 See Notes 3,4

PCB 105 ng/L 0.0279 0.152 0.151 See Notes 3,4

PCB 106/118 ng/L 0.0736 0.401 0.346 See Notes 3,4

PCB 110 ng/L 0.089 0.525 0.47 See Notes 3,4

PCB 128/162 ng/L 0.0123 0.101 0.0851 See Notes 3,4

PCB 132/161 ng/L 0.0264 0.175 0.147 See Notes 3,4

PCB 138/163/164 ng/L 0.0886 0.636 0.573 See Notes 3,4

PCB 139/149 ng/L 0.0667 0.363 0.416 See Notes 3,4

PCB 141 ng/L 0.0163 0.108 0.111 See Notes 3,4

PCB 151 ng/L 0.0159 0.1 0.111 See Notes 3,4

PCB 153 ng/L 0.0742 0.467 0.442 See Notes 3,4

PCB 156 ng/L 0.00647 0.0559 0.0577 See Notes 3,4

PCB 158/160 ng/L 0.0108 0.0772 ND See Notes 3,4

PCB 170 ng/L 0.0159 0.147 0.115 See Notes 3,4

PCB 174 ng/L 0.0205 0.185 0.143 See Notes 3,4

PCB 177 ng/L 0.0124 0.0986 0.074 See Notes 3,4

PCB 180 ng/L 0.0479 0.402 0.286 See Notes 3,4

PCB 182/187 ng/L 0.019 0.209 0.166 See Notes 3,4

PCB 183 ng/L 0.00687 0.0832 0.0701 See Notes 3,4

PCB 194 ng/L 0.0141 0.0946 0.0521 See Notes 3,4


226





Reference Values5,6

Constituent

PCB 196/203 ng/L 0.00826 0.138 0.0775 See Notes 3,4

PCB 201 ng/L 0.00257 0.0175 0.0129 See Notes 3,4

Chronic Toxicity – Ceriodaphnia dubia P/F Fail Fail Fail

Acute Toxicity – Chironomus dilutes P/F Fail Pass Fail

Acute Toxicity – Hyallela azteca P/F Fail Fail Pass

Field Measurements

pH pH units 7.4 6 6.82 6.5 to 8.5



Bacteria


Conventionals



Oil & Grease mg/L 10 4.9 4.7

Total Dissolved Solids mg/L 480 54 37 500




Elements


227





Reference Values5,6

Constituent



Iron, total µg/L 1900 1500 1900

Lead, total µg/L 13 3.7 4 65 65

Zinc, total µg/L 1300 130 190 120 120

Toxicity 7














Fluoranthene ng/L ND 72.4 166


228





Reference Values5,6

Constituent



Phenanthrene ng/L ND ND 75

Pyrene ng/L 216 182 451

Total PAHs ng/L 216 254 692

229



Notes: 1. San Francisco Bay Mercury TMDL. There are no waste load allocations specific to Caltrans. Instead, Caltrans' waste load allocation is an unspecified

portion of the waste load allocation assigned to the city or municipal NPDES permit in which Caltrans' roads or facilities resides. 2. San Francisco Bay Urban Creeks Diazinon and Pesticide TMDL. The waste load allocation assigned to Caltrans is 100 ng/L as a one-hour average. 3. San Francisco Bay PCBs TMDL. All storm water runoff sources share a 2 kg/yr waste load allocation. 4. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 6. See Appendix D–Water Quality Reference Values for TMDL Sites. 7. Toxicity species to be used is Fathead minnow.

230

Table 3.18. Results for Tier 1 Project Site 4-407 (4-Mrn-131-R1.558)



Units 11/19/2016 1/18/2017 Limits Values Values


Enterococcus CFU/100 mL 2419.6 488.4 See Notes 1,2

Total Coliform MPN/100mL See Note 5 3500 See Notes 1,2

Field Measurements


Temperature oC 15 9.7


Conventionals


Nitrate as N mg/L 0.065 0.18 10

Oil & Grease mg/L ND 2.4





Bacteria


Elements



Copper, total µg/L 21 25 13 13

Constituent

Reference Values3,4

231




Units 11/19/2016 1/18/2017 Limits Values ValuesConstituent

Reference Values3,4


Lead, total µg/L 1.1 2.3 65 65


Toxicity 6

Chronic Toxicity, Biomass P/F Fail Pass

Chronic Toxicity, Survival P/F Pass Pass










Chrysene ng/L ND ND



Fluorene ng/L ND ND



232





Reference Values3,4


Pyrene ng/L 32.7 ND

Total PAHs ng/L 32.7 ND

233



Notes: 1. Richardson Bay Pathogens TMDL. The waste load allocation for Fecal Coliform assigned to Caltrans is a median of <14 MPN/100 mL and a 90th percentile

of <43 MPN/100mL (no more than 10 percent of total samples during any 30-day period may exceed this number). 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. The laboratory inadvertently canceled the Total Coliform analysis for the 11-19-2016 storm event (SE #1) at this site. There are no results to report. 6. Toxicity species to be used is Fathead minnow.

234

Table 3.19a. Results for Tier 1 Project Site 4-412 (4-Sol-12-0.945)


Event Event Event

Units 2/1/2017 3/20/2017 4/6/2017


Suspended Sediment Concentration mL/L 41 6.3 332

Field Measurements

pH pH units 7.06 6.22 6.72

Temperature oC 12.3 14 12.5


Conventionals


Nitrate as N mg/L 0.22 0.16 0.062

Oil & Grease mg/L 2.1 ND ND





Bacteria


Elements


Chromium, total µg/L 23 17 22


Iron, total µg/L 2100 1300 2100

Lead, total µg/L 2.9 1.9 2.2


Toxicity 6

Chronic Toxicity, Biomass P/F Pass Pass Pass






Constituent

235



Event Event Event









Fluoranthene ng/L 32.6 ND ND





Pyrene ng/L 89.3 ND ND

Total PAHs ng/L 122 ND ND

236

Table 3.19b. Results for Tier 1 Project Site 4-413 (4-Sol-12-0.945)





Suspended Sediment Concentration mL/L 12 6.9 8.1 See Notes 1,2

Field Measurements

pH pH units 6.87 6.13 6.7



Conventionals


Nitrate as N mg/L 0.45 0.25 0.13 10



Total Kjeldahl Nitrogen mg/L 1 0.13 0.92



Bacteria


Elements


Chromium, total µg/L 13 9.8 13

Copper, total µg/L 7.9 9.3 11 13 13

Iron, total µg/L 1300 1600 1700

Reference Values3,4

Constituent

237





Reference Values3,4

Constituent

Lead, total µg/L 1.1 1.2 1.1 65 65

Zinc, total µg/L 16 13 15 120 120

Toxicity 5



















238





Reference Values3,4

Constituent



239



Notes: 1. Napa River Sediment TMDL. Caltrans is deemed to be implementing appropriate control measures if it discharges in compliance with the Permit, and if it

conducts the monitoring program included in the Permit. 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water

Permit. Only results greater than the acute value are highlighted. 3. CTR metals objectives based on hardness of receiving water. Hardness cap of 400 mg/L used as required in CTR. For water bodies classified as estuarine,


240

Table 3.20a. Results for Tier 1 Project Site 4-414 (4-CC-4-23.9-INF)

Sacramento-San Joaquin River Delta Estuary Methylmercury TMDL, San Francisco Bay Mercury TMDL,


Event Event

Units 3/20/2017 4/6/2017


Methyl Mercury ng/L See Note 7 See Note 7

Diazinon ng/L ND ND

Suspended Sediment Concentration mL/L 79 42

Chronic Toxicity – Ceriodaphnia dubia P/F Fail Fail

Acute Toxicity – Chironomus dilutes P/F Fail Fail

Acute Toxicity – Hyallela azteca P/F Pass Fail

Field Measurements




Conventionals



Oil & Grease mg/L 3.7 3.6


Total Kjeldahl Nitrogen mg/L 1.4 2



Bacteria


Elements







Toxicity 8

Constituent

241




Event Event


Chronic Toxicity, Biomass P/F Pass Pass











Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND

Total PAHs ng/L ND ND

242

Table 3.20b. Results for Tier 1 Project Site 4-415 (4-CC-4-23.9-EFF)





TMDL Specific Constituents 2

Methyl Mercury ng/L See Note 7 See Note 7 See Notes 1,4 0.05

Diazinon ng/L ND ND See Notes 3,4

Suspended Sediment Concentration mL/L 14 9

Chronic Toxicity – Ceriodaphnia dubia P/F Pass Pass See Notes 3,4

Acute Toxicity – Chironomus dilutes P/F Fail Fail See Notes 3,4

Acute Toxicity – Hyallela azteca P/F Pass Pass See Notes 3,4

Field Measurements

pH pH units 5.77 6.27 6.5 to 8.5

Temperature oC 15 13.2


Conventionals








Bacteria

Reference Values5,6

Constituent

243






Reference Values5,6

Constituent


Elements



Copper, total µg/L 6.6 8 13 13


Lead, total µg/L 0.54 1.3 65 65


Toxicity 8

Chronic Toxicity, Biomass P/F Pass Pass











244






Reference Values5,6

Constituent

Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND


245



Notes: 1. Sacramento-San Joaquin River Delta Estuary Methylmercury TMDL. There are no waste load allocations specific to Caltrans. However, allocations for each

of the defined municipal entities include all current and future permitted discharges within the geographic boundaries of these municipalities and unincorporated areas, including Caltrans.

2. San Francisco Bay Mercury TMDL. There are no waste load allocations specific to Caltrans. Instead, Caltrans' waste load allocation is an unspecified portion of the waste load allocation assigned to the city or municipal NPDES permit in which Caltrans' roads or facilities resides.

3. San Francisco Bay Urban Creeks Diazinon and Pesticide TMDL. The waste load allocation assigned to Caltrans is 100 ng/L as a one-hour average. 4. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 6. See Appendix D–Water Quality Reference Values for TMDL Sites. 7. Field crews inadvertently did not collect samples at Site 4-414 (4-CC-4-23.9-INF) and Site 4-415 (4-CC-4-23.9-EFF) for the 3-20-2017 storm event (SE #1)

and the 4-06-2017 storm event (SE #2). There are no results to report. 8. Toxicity species to be used is Fathead minnow.

246

Table 3.21a. Results for Tier 1 Project Site 5-306 (Santa Cruz HWY 1/17 IC)





Suspended Sediment Concentration mL/L 101 105 46 See Notes 1,2

Field Measurements

pH pH units 7.95 8.03 8.47


Average Flow Rate gpm 459.4 1,094.5 994.4

Conventionals



Oil & Grease mg/L 8.4 ND ND





Bacteria


Elements




Iron, total µg/L 1400 2000 2000

Reference Values3,4

Constituent

247





Reference Values3,4

Constituent

Lead, total µg/L 6 6.3 3.5 65 30

Zinc, total µg/L 53 57 50 120 200

Toxicity 6














Fluoranthene ng/L 117 ND 24.6





248





Reference Values3,4

Constituent

Pyrene ng/L 158 ND 44.3

Total PAHs ng/L 275 ND 68.9

249


250

Table 3.21b. Results for Tier 1 Project Site 5-307 (Santa Cruz SB HWY 1 Influent)


Event Event

Units 2/1/2017 4/6/2017


Suspended Sediment Concentration mg/L 48 6.5

Field Measurements

pH pH units 7.5 7.8



Conventionals








Bacteria


Elements





Lead, total µg/L 3.8 1.7


Toxicity 5

Chronic Toxicity, Biomass P/F Pass See Note 6

Chronic Toxicity, Survival P/F Pass See Note 6





Constituent

251



Event Event







Chrysene ng/L ND ND



Fluorene ng/L ND ND




Pyrene ng/L ND ND


252

Table 3.21c. Results for Tier 1 Project Site 5-308 (Santa Cruz SB HWY 1 Effluent)





Suspended Sediment Concentration mg/L 34 20 See Notes 1,2

Field Measurements


Temperature oC 13.8 13


Conventionals



Oil & Grease mg/L 1.6 ND





Bacteria


Elements





Reference Values3,4

Constituent

253





Reference Values3,4

Constituent

Lead, total µg/L 4.3 3.1 65 30

Zinc, total µg/L 110 120 120 200

Toxicity 5

Chronic Toxicity, Biomass P/F Pass See Note 6

Chronic Toxicity, Survival P/F Pass See Note 6










Chrysene ng/L ND ND



Fluorene ng/L ND ND




254





Reference Values3,4

Constituent

Pyrene ng/L ND ND


255

Table 3.21a, b, c. (cont’d) Abbreviations and Acronyms:


Notes: 1. San Lorenzo River (includes Carbonera, Lompico, and Shingle Mills Creeks) Sediment TMDL. There are no waste load allocations specific to Caltrans. 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan freshwater hard values and acute values are presented in the table. 4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Toxicity species to be used is Fathead minnow. 6. Field crews were able to collect sufficient sample volume for all analyses except toxicity for the 4-06-2017 storm event (SE #2) at Site 5-307

(Santa Cruz SB HWY 1 Influent) and 5-308 (Santa Cruz SB HWY 1 Effluent). Therefore, there are no toxicity results to report for this storm event at these sites.

256

Table 3.22a. Results for Tier 1 Project Site 2-303 (Shasta River Influent)

Klamath River In California Temperature, Dissolved Oxygen, Nutrients and Microcystin TMDL

Event Event Event

Units 10/24/2016 12/14/2016 2/16/2017


Total Settleable Solids10 mL/L ND ND ND

Turbidity (Field Measurement) NTU 27 33.1 92.2

Nitrite as N mg/L ND See Note 6 See Note 6

Total Nitrogen mg/L 0.42 See Note 6 See Note 6

Field Measurements

pH pH units 8.59 7.89 7.59



Conventionals



Oil & Grease mg/L See Note 5 ND ND




Total Suspended Solids mg/L 32 19 54.9

Elements



Copper, total µg/L 8.6 11.3 15.2

Iron, total µg/L 1200 2260 5990


Zinc, total µg/L 19 25.9 39.2

Constituent

257


258

Table 3.22b. Results for Tier 1 Project Site 2-304 (Shasta River Effluent)





Total Settleable Solids10 mL/L ND ND ND See Notes 1,2

Turbidity (Field Measurement) NTU 22 36 71.6

Nitrite as N mg/L ND See Note 6 See Note 6 1

Total Nitrogen mg/L 0.83 See Note 6 See Note 6

Field Measurements

Temperature oC 8.5 7.6 See Note 7


Conventionals


Nitrate as N mg/L 0.21 0.11 0.07 10





Total Suspended Solids mg/L 22 6.5 9.1

Bacteria8

Fecal Coliform MPN/100mL 130 ND 17

Elements



Reference Values3,4

Constituent

259





Reference Values3,4

Constituent

Copper, total µg/L 11 6.6 7 13

Iron, total µg/L 1100 2330 3840

Lead, total µg/L 1.2 0.9 1.5 65 50

Zinc, total µg/L 20 30.3 37.6 120

Toxicity9







Benz(a)anthracene ng/L 41.4 ND ND










260





Reference Values3,4

Constituent




Total PAHs ng/L 41.4 ND ND

261



Notes: 1. Klamath River In California Temperature, Dissolved Oxygen, Nutrients and Microcystin TMDL. There are no waste load allocations specific to Caltrans.

Caltrans is expected to address nutrient inputs into the Klamath River watershed through control of sediment from its road and highway facilities. 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. The bottle containing the oil and grease sample broke before it was delivered to the laboratory for Site 2-303 (Shasta River Influent) for the 10-24-2016

storm event (SE #1). 6. The laboratory did not analyze for Nitrite or Total Nitrogen for the 12-14-2016 storm event (SE #2) due to using the wrong constituent list at Site 2-303

(Shasta River Influent) and Site 2-304 (Shasta River Effluent). There are no results to report. 7. Field crews inadvertently forget to take a temperature measurement at Site 2-304 (Shasta River Effluent) for the 2-16-2017 storm event (SE #3). 8. Bacteria samples collected at effluent station, Site 2-304 (Shasta River Effluent), only. 9. Toxicity species to be used is Fathead minnow. Toxicity samples collected at effluent station, Site 2-304 (Shasta River Effluent), only. 10. Analytical method is SM 2540 F.

262

Table 3.23. Results for Tier 1 Project Site 2-305 (Lost River)

Lost River Nitrogen Biochemical Oxygen Demand to address Dissolved Oxygen and pH Impairments TMDL

Event TMDL CTR Basin Plan

Units 12/14/2016 Limits Values Values


Total Settleable Solids6 mL/L ND

Carbonaceous BOD mg/L 14 See Notes 1,2

Turbidity (Field Measurement) NTU 9

Nitrite as N mg/L 0.009

Total Nitrogen mg/L 5.4

Ammonia as N mg/L 0.77

Inorganic Nitrogen mg/L 0.83 See Notes 1,2

Field Measurements

pH pH units 7.30 7.0 - 9.0

Temperature oC 3.8

Average Flow Rate gpm 1.4

Turbidity NTU 9

Conventionals

Hardness as CaCO3 mg/L 27

Nitrate as N mg/L 0.11 10

Oil & Grease mg/L ND

Total Dissolved Solids mg/L 321

Total Kjeldahl Nitrogen mg/L 5.3

Total Phosphorus mg/L 0.41

Total Suspended Solids mg/L 11.2

Bacteria

Fecal Coliform MPN/100mL ND

Elements


Chromium, total µg/L 0.5

Copper, total µg/L 5.7 13

Iron, total µg/L 385

Lead, total µg/L 0.3 65 50

Constituent

Reference Values3,4

263


Lost River Nitrogen Biochemical Oxygen Demand to address Dissolved Oxygen and pH Impairments TMDL

Event TMDL CTR Basin Plan

Units 12/14/2016 Limits Values ValuesConstituent

Reference Values3,4

Zinc, total µg/L 11.6 230

Toxicity 5

Chronic Toxicity, Biomass P/F Pass

Chronic Toxicity, Survival P/F Pass


Acenaphthene ng/L ND

Acenaphthylene ng/L ND

Anthracene ng/L ND

Benz(a)anthracene ng/L ND

Benzo(a)pyrene ng/L ND

Benzo(b)fluoranthene ng/L ND

Benzo(g,h,i)perylene ng/L ND

Benzo(k)fluoranthene ng/L ND

Chrysene ng/L ND

Dibenz(a,h)anthracene ng/L ND

Fluoranthene ng/L ND

Fluorene ng/L ND

Indeno(1,2,3-c,d)pyrene ng/L ND

Naphthalene ng/L ND

Phenanthrene ng/L ND

Pyrene ng/L ND

Total PAHs ng/L ND

264



Notes: 1. Lost River Nitrogen Biochemical Oxygen Demand to address Dissolved Oxygen and pH Impairments TMDL.

The waste load allocation for dissolved inorganic nitrogen assigned to Caltrans is 0.3 kg/day. The waste load allocation for carbonaceous biochemical oxygen demand assigned to Caltrans is 0.5 kg/day.



4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Toxicity species to be used is Fathead minnow. 6. Analytical method is SM 2540 F.

265


266

Table 3.24. Results for Tier 1 Project Site 2-306 (Mad River)






Suspended Sediment Concentration mg/L See Note 5 See Note 6 See Note 6 See Notes 1,2

Turbidity (Field Measurement) NTU 160 33.3 78.3

Field Measurements

pH pH units 8.42 8.81 9.70 6.5 - 8.5



Conventionals


Nitrate as N mg/L 0.077 ND ND 10





Total Suspended Solids mg/L 134 7.8 55

Bacteria


Elements



Reference Values3,4

Constituent

267





Reference Values3,4

Constituent

Copper, total µg/L 11 5.5 6.9 13

Iron, total µg/L 8400 2200 4250

Lead, total µg/L 3.7 0.8 1.7 65 50

Zinc, total µg/L 85 28.8 31.9 120

Toxicity7







Benz(a)anthracene ng/L 99.3 ND ND

Benzo(a)pyrene ng/L 90 ND ND




Chrysene ng/L 102 ND ND


Fluoranthene ng/L 97.2 ND 41.6


Indeno(1,2,3-c,d)pyrene ng/L 54.6 ND ND

268





Reference Values3,4

Constituent



Pyrene ng/L 107 ND 36.4

Total PAHs ng/L 616.2 ND 78

269



Notes: 1. Mad River Sediment and Turbidity TMDL. The waste load allocations for sediment and turbidity assigned to Caltrans are equivalent to and represented by

the load allocations, and the load allocations are expressed on a unit loading basis (tons/mi2/yr). 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. The laboratory did not analyze for Suspended Sediment Concentration for the 10-24-2016 storm event (SE #1) due to using the wrong constituent list.

There are no results to report. 6. The laboratory is not able to do low-level Suspended Sediment Concentration. There are no results to report. 7. Toxicity species to be used is Fathead minnow. 8. Analytical method is SM 2540 F.

270

Table 3.25a. Results for Tier 1 Project Site 3-397 (I-5 Southbound at Consumnes)

Sacramento-San Joaquin River Delta Estuary Methylmercury TMDL





Total Settleable Solids8 mL/L 0.7 0.5 1.1

Turbidity (Field Measurement) NTU 550 500 1400

Field Measurements

pH pH units 9.09 9.17 7.87 6.5 - 8.5



Conventionals








Bacteria


Elements


Chromium, total µg/L 65 60 160

Reference Values3,4

Constituent

271





Reference Values3,4

Constituent


Iron, total µg/L 32000 29000 74000

Lead, total µg/L 18 15 37 65

Zinc, total µg/L 270 200 440 120

Toxicity6




Acenaphthene ng/L 20.7 ND ND




Benzo(a)pyrene ng/L ND ND ND 200






Fluoranthene ng/L 502 60.7 54.3



272





Reference Values3,4

Constituent


Phenanthrene ng/L 407 ND 42.4

Pyrene ng/L 538 115.9 230

Total PAHs ng/L 1470 176.6 327

273


274

Table 3.25b. Results for Tier 1 Project Site 10-300 (209-6T)





Methyl Mercury ng/L 0.21 0.22 See Notes 1,2

Total Settleable Solids8 mL/L 0.42 0.2

Turbidity (Field Measurement) NTU 45 55

Field Measurements

pH pH units 7.50 7.41 6.5 to 8.5



Conventionals








Bacteria


Elements



Constituent

Reference Values3,4

275





Reference Values3,4





Toxicity

Chronic Toxicity, Biomass P/F Pass Fail

Chronic Toxicity, Survival P/F Pass Fail










Chrysene ng/L ND ND


Fluoranthene ng/L ND 91.1

Fluorene ng/L ND ND


276





Reference Values3,4



Pyrene ng/L 205 195.5

Total PAHs ng/L 205 286.6

277


278

Table 3.25c. Results for Tier 1 Project Site 4-405 (Antioch Influent)


Event Event Event

Units 12/14/2016 1/18/2017 2/16/2017


Methyl Mercury ng/L 0.06 0.13 0.04

Total Settleable Solids8 mL/L ND 0.3 0.1


Field Measurements

pH pH units See Note 5 6.78 See Note 5

Temperature oC See Note 5 9.36 See Note 5


Conventionals








Elements




Iron, total µg/L 1600 1400 1800



Constituent

279


280

Table 3.25d. Results for Tier 1 Project Site 4-406 (Antioch Effluent)








Field Measurements

pH pH units 8.37 See Note 5 8.17 6.5 to 8.5

Temperature oC 16.71 See Note 5 13.05


Conventionals








Bacteria7


Elements



Reference Values3,4

Constituent

281





Reference Values3,4

Constituent



Lead, total µg/L 1.2 1.8 1.2 65


Toxicity6








Benzo(a)pyrene ng/L ND ND ND 200






Fluoranthene ng/L 34.2 76.9 ND



282





Reference Values3,4

Constituent


Phenanthrene ng/L ND 34.9 ND

Pyrene ng/L 59.8 146 ND

Total PAHs ng/L 94 258 ND

283

Table 3.25a, b, c, d. (cont’d) Abbreviations and Acronyms:


Notes: 1. Sacramento-San Joaquin River Delta Estuary Methylmercury TMDL. There are no waste load allocations specific to Caltrans. However, allocations for each

of the defined municipal entities include all current and future permitted discharges within the geographic boundaries of these municipalities and unincorporated areas, including Caltrans.



4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Field crews inadvertently forget to take a temperature measurement at Site 4-405 (Antioch Influent) for the 12-14-2016 storm event (SE #1), Site 4-405

(Antioch Influent) for the 2-16-2017 storm event (SE #3) and Site 4-406 (Antioch Effluent) for 1-18-2017 storm event (SE #3). There are no results to report.

6. Toxicity species to be used is Fathead minnow. Toxicity samples collected at effluent station, Site 4-406 (Antioch Effluent), only. 7. Bacteria samples collected at effluent station, Site 4-406 (Antioch Effluent), only. 8. Analytical method is SM 2540 F.

284

Table 3.26a. Results for Tier 1 Project Site 3-404 (Truckee River Influent)


Event Event Event

Units 12/14/2016 2/16/2017 3/9/2017


Total Settleable Solids8 mL/L 0.4 0.2 0.1


Field Measurements

pH pH units 8.99 9.52 7.95



Conventionals


Nitrate as N mg/L 0.038 0.076 0.04

Oil & Grease mg/L 2 6.4 See Note 5





Elements


Chromium, total µg/L 14 11 1.9

Copper, total µg/L 30 19 4.8

Iron, total µg/L 14000 8800 1400

Lead, total µg/L 12 5.3 1


Constituent

285


286

Table 3.26b. Results for Tier 1 Project Site 3-405 (Truckee River Effluent)





Total Settleable Solids8 mL/L 0.2 ND ND See Notes 1,2


Field Measurements

pH pH units 8.59 8.71 7.94 6.5 - 8.5



Conventionals


Nitrate as N mg/L 0.044 0.1 0.034






Bacteria 6

Fecal Coliform MPN/100mL 1600 2 ND

Elements



Copper, total µg/L 16 10 4.7 13

Reference Values3,4

Constituent

287





Reference Values3,4

Constituent

Iron, total µg/L 8800 4500 1500

Lead, total µg/L 7.6 2.8 1.1 65


Toxicity 7


















288





Reference Values3,4

Constituent




289



Notes: 1. Truckee River Sediment TMDL. Caltrans’ compliance with its stormwater permit is deemed to be evidence of compliance with its responsibility to help

achieve desired watershed conditions. 2. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water


most stringent of freshwater and saltwater criteria selected. Basin Plan acute values are presented in the table. 4. See Appendix D–Water Quality Reference Values for TMDL Sites. 5. Field crews inadvertently reviewed the wrong constituent list prior to collecting the samples at Site 3-404 (Truckee River Influent) for the 3-09-2017 storm

event (SE #3). The field crews did not collect the oil and grease sample. Therefore, there are no results to report. 6. Bacteria samples collected at effluent station, Site 3-405 (Truckee River Effluent), only. 7. Toxicity species to be used is Fathead minnow. Toxicity samples collected at effluent station, Site 3-405 (Truckee River Effluent), only. 8. Analytical method is SM 2540 F.

290

Table 3.27a. Results for Tier 1 Project Site 7-08 (North Hollywood CSF Inlet)

Los Angeles River Metals TMDL, Los Angeles River Trash TMDL, Los Angeles River Watershed Bacteria TMDL

Event Event Event

Units 11/20/2016 12/15/2016 1/9/2017



Copper, total µg/L 12 18 8.6

Lead, total µg/L 3 13 5.6


E. coli MPN/100mL 1099 52 184

Field Measurements

pH pH units 7.23 8.45 8.74



Bacteria


Conventionals



Oil & Grease mg/L ND 1 2


Total Kjeldahl Nitrogen mg/L ND 0.73 0.56



Elements




Toxicity 8

Chronic Toxicity, Biomass P/F See Note 6 Pass Pass

Chronic Toxicity, Survival P/F See Note 6 Pass Pass




Constituent

291



Event Event Event

















292

Table 3.27b. Results for Tier 1 Project Site 7-09 (North Hollywood CSF Outlet)





Cadmium, total µg/L 0.2 ND 0.1 See Notes 1,3 10.4

Copper, total µg/L 15 7.5 8.9 See Notes 1,3 28

Lead, total µg/L 4.7 1.4 6.4 See Notes 1,3 209

Zinc, total µg/L 150 67 77 See Notes 1,3 224

E. coli MPN/100mL 1317 46 579 See Notes 2,3

Field Measurements

pH pH units 7.34 8.39 8.38 6.5 to 8.5



Bacteria


Conventionals








Elements

Reference Values4,5

Constituent

293





Reference Values4,5

Constituent




Toxicity 8


















294





Reference Values4,5

Constituent




295


296

Table 3.27c. Results for Tier 1 Project Site 7-404 (UCLA-1 Influent)


Event Event Event

Units 11/20/2016 12/15/2016 1/9/2017






E. coli MPN/100mL 2420 1986 91

Field Measurements

pH pH units See Note 7 8.35 8.38

Temperature oC See Note 7 15.4 13.8


Bacteria


Conventionals








Elements




Toxicity 8

Chronic Toxicity, Biomass P/F See Note 6 Pass See Note 6

Chronic Toxicity, Survival P/F See Note 6 Pass See Note 6




Constituent

297



Event Event Event

















298

Table 3.27d. Results for Tier 1 Project Site 7-201 (UCLA-1 Effluent)





Cadmium, total µg/L 0.3 0.2 0.1 See Notes 1,3 10.4

Copper, total µg/L 83 66 30 See Notes 1,3 28

Lead, total µg/L 5.4 4.8 3.4 See Notes 1,3 209


E. coli MPN/100mL 830 2420 96 See Notes 2,3

Field Measurements

pH pH units 8.4 8.19 8.28 6.5 to 8.5



Bacteria


Conventionals








Elements

Reference Values4,5

Constituent

299





Reference Values4,5

Constituent




Toxicity 8

Chronic Toxicity, Biomass P/F See Note 6 Pass Pass

Chronic Toxicity, Survival P/F See Note 6 Pass Pass
















300





Reference Values4,5

Constituent




301


302

Table 3.27e. Results for Tier 1 Project Site 7-405 (Shoup Influent)


Event Event Event

Units 11/20/2016 12/15/2016 1/9/2017


Cadmium, total µg/L ND 0.2 0.1

Copper, total µg/L ND 62 39

Lead, total µg/L ND 4.3 4.1


E. coli MPN/100mL 2420 154 35

Field Measurements

pH pH units 7.82 8.18 See Note 7

Temperature oC 14.1 13 See Note 7


Bacteria


Conventionals

Hardness as CaCO3 mg/L ND 26 20

Nitrate as N mg/L ND 0.86 0.52

Oil & Grease mg/L 4 16 2

Total Dissolved Solids mg/L ND 44 12




Elements




Toxicity 8

Chronic Toxicity, Biomass P/F See Note 6 Fail Fail

Chronic Toxicity, Survival P/F See Note 6 Pass Fail




Constituent

303



Event Event Event

















304

Table 3.27f. Results for Tier 1 Project Site 7-406 (Shoup Effluent)





Cadmium, total µg/L 0.3 0.2 0.1 See Notes 1,3 10.4

Copper, total µg/L 69 68 37 See Notes 1,3 28

Lead, total µg/L 2.5 6.6 4 See Notes 1,3 209


E. coli MPN/100mL 244 55 33 See Notes 2,3 235

Field Measurements

pH pH units 7.82 7.8 9.34 6.5 to 8.5



Bacteria


Conventionals



Oil & Grease mg/L 4 7 2





Elements

Reference Values4,5

Constituent

305





Reference Values4,5

Constituent




Toxicity 8

Chronic Toxicity, Biomass P/F See Note 6 Fail Fail

Chronic Toxicity, Survival P/F See Note 6 Pass Fail
















306





Reference Values4,5

Constituent




307

Table 3.27a, b, c, d, e, f. (cont’d) Abbreviations and Acronyms:


Notes: 1. Los Angeles River Watershed Metals TMDL. The TMDL includes wet-weather and dry-weather waste load allocations. The wet-weather allocations are

apportioned among stormwater permit holders based on the percent area of the watershed served by storm drains. The mass-based wet-weather allocations are a function of the Water-Effect ratio and the daily volume.

2. Los Angeles River Watershed Bacteria TMDL. The TMDL uses a "reference system/anti-degradation approach" to implement the water quality objectives per the implementation provisions in Chapter 3 of the Basin Plan. A certain number of daily exceedances of the single sample bacteria objectives are permitted. The single sample target for E. coli density shall not exceed 235/100 mL.



5. See Appendix D–Water Quality Reference Values for TMDL Sites. 6. Field crews were able to collect sufficient sample volume for all analyses except toxicity for the 11-20-2016 storm event (SE #1) at Site 7-08

(North Hollywood CSF Inlet), Site 7-404 (UCLA-1 Influent), Site 7-201 (UCLA-1 Effluent), Site 7-405 (Shoup Influent), and Site 7-406 (Shoup Effluent). Field crews were able to collect sufficient sample volume for all analyses except toxicity for the 1-09-2017 storm event (SE #3) at Site 7-404 (UCLA-1 Influent). Therefore, there are no toxicity results to report for this storm event at these sites.

7. Field crews did not record any field values, pH and temperature, for the 11-20-2016 storm event (SE #1) at Site 7-404 and the 1-09-2017 storm event (SE #3) at Site 7-405.

8. Toxicity species to be used is Fathead minnow.

308

Table3.28.ResultsforTier1ProjectSite7‐336(SMB‐MC)

Malibu Creek and Lagoon Bacteria TMDL, Malibu Creek and Lagoon Sedimentation and Nutrients TMDL




Total Coliform9 MPN/100mL 1600 1600 1600 See Notes 1,3 10000

Fecal Coliform9 MPN/100mL 1600 1600 240 See Notes 1,3 400

Enterococcus MPN/100mL 2419.6 2419.6 See Note 7 See Notes 1,3 104

Total Phosphorus mg/L 0.42 0.21 0.1 See Notes 2,4

Field Measurements

pH pH units 7.72 8.41 8.35 6.5 ‐ 8.5



Conventionals



Nitrite as N mg/L ND ND ND





Bacteria

E. coli MPN/100mL 1011 2420 194

Elements


Reference Values5,6

Constituent

309





Reference Values5,6

Constituent




Lead, total µg/L 4.8 4.3 5.4 477


Toxicity 8

Chronic Toxicity, Biomass P/F Pass Pass Fail















310





Reference Values5,6

Constituent






311

Table3.28.(cont’d)Abbreviations and Acronyms:

P/F = Pass/Fail ND = Non‐detect

Notes: 1. Malibu Creek and Lagoon Bacteria TMDL. No exceedances are allowed for the geometric mean limits. The allowable days of exceedance for the single

sample limits differ depending on season, dry weather or wet weather, and by sampling locations. This site drains to the lagoon, which is considered marine waters. For marine waters, the single sample bacteria standard for: Total Coliform is 10,000 or 1,000 if (fecal coliform)/(total coliform) > 0.1; Fecal Coliform is 400; and Enterecoccus is 104.

2. Malibu Creek and Lagoon TMDL for Sedimentation and Nutrients. The concentration‐based waste load allocation for Total Phosphorus in the Winter (Nov. 16 through Apr. 14) is 0.2 mg/L and in the summer (Apr. 15 through Nov. 15) is 0.1 mg/L. The concentration‐based waste load allocation for Total nitrogen in the Winter (Nov. 16 through Apr. 14) is 4 mg/L and in the summer (Apr. 15 through Nov. 15) is 1 mg/L.

3. Source: Order WQ 2014‐0077‐DWQ Amendment to State Water Board Order 2012‐0011‐DWQ Department of Transportation Statewide Storm Water Permit and Total Maximum Daily Loads for Bacteria in the Malibu Creek Watershed US Environmental Protection Agency Region 9.

4. Source: Order WQ 2014‐0077‐DWQ Amendment to State Water Board Order 2012‐0011‐DWQ Department of Transportation Statewide Storm Water Permit. Only results greater than the acute value are highlighted.


6. See Appendix D–Water Quality Reference Values for TMDL Sites. 7. Field crews inadvertently left Enterococcus off the Chain‐of‐Custody form for Site 7‐336 (SMB‐MC) for the 1‐09‐2017 storm event (SE #3). Therefore, the

laboratory did not analyze the sample for Enterococcus and there are no results to report. 8. Toxicity species to be used is Fathead minnow. 9. Several results for total and fecal coliform were reported as equal to 1600 MPN/100mL. This number is the maximum reportable value for the analytical

method, and it is a commonly‐reported value for samples with high levels of coliform bacteria.

312

Table3.29a.ResultsforTier1ProjectSite12‐329(1149LInlet)

San Diego Creek and Newport Bay, including Rhine Channel Metals (Cu, Pb, Zn) TMDL,

San Diego Creek and Upper Newport Bay Cadmium TMDL,

San Diego Creek Watershed, Organochlorine Compounds and PCBs TMDL

Event1 Event1 Event1

Units 11/20/2016 12/15/2016 1/9/2017


Toxaphene ng/L ND ND ND

Cadmium, dissolved µg/L 0.041 ND 0.007

Copper, dissolved µg/L 27.432 9.757 14.388

Lead, dissolved µg/L 0.04 0.023 0.047

Zinc, dissolved µg/L 62.87 28.89 46.4

DDD(o,p') ng/L ND ND ND

DDD(p,p') ng/L ND ND ND

DDE(o,p') ng/L ND ND ND

DDE(p,p') ng/L ND ND ND

DDT(o,p') ng/L ND ND ND

DDT(p,p') ng/L ND ND ND

Field Measurements

pH pH units 7.8 7.88 8.45



Bacteria


Conventionals

Hardness as CaCO3 mg/L 12 3.7 6.6






Total Suspended Solids mg/L 12 1.3 47

Elements

Aluminum, total µg/L 388.05 98.69 410.3

Constituent

313








Copper, total µg/L 52.341 14.376 47.202

Iron, total µg/L 728.18 179.78 734.53

Lead, total µg/L 1.965 0.765 2.933

Zinc, total µg/L 137.61 42.42 134.41

Toxicity 7

Chronic Toxicity, Biomass P/F Pass Fail Fail

Chronic Toxicity, Survival P/F Pass Pass Fail


Acenaphthene ng/L ND ND 5.4

Acenaphthylene ng/L 5.2 1.2 7

Anthracene ng/L 5.6 ND 9.5


Benzo(a)pyrene ng/L 25.7 2.8 48.7

Benzo(b)fluoranthene ng/L 19.8 3.6 33.8


Benzo(k)fluoranthene ng/L 4.8 ND 17.9

Chrysene ng/L 28.3 8.3 75.6

Dibenz(a,h)anthracene ng/L 11.8 ND ND



Indeno(1,2,3-c,d)pyrene ng/L 25.1 ND 15.1

Naphthalene ng/L 18.5 5 18.8


Pyrene ng/L 81.3 13.4 153.7

314

Table3.29b.ResultsforTier1ProjectSite12‐330(1149LOutlet)

San Diego Creek and Newport Bay, including Rhine Channel Metals (Cu, Pb, Zn) TMDL, San Diego Creek and Upper Newport Bay Cadmium TMDL,


Event1 Event1 Event1 TMDL CTR Basin Plan


TMDL Specific Constituents ‐ Chlorinated Pesticides

Toxaphene ng/L ND ND ND See Notes 2,4 730

Cadmium, dissolved µg/L 0.048 0.014 0.038 See Notes 2,3 10.8

Copper, dissolved µg/L 17.422 11.441 7.968 See Notes 2,3 30.2

Lead, dissolved µg/L 0.035 0.038 0.029 See Notes 2,3 162

Zinc, dissolved µg/L 10.13 6.46 4.77 See Notes 2,3 243

DDD(o,p') ng/L ND ND ND See Notes 2,4

DDD(p,p') ng/L ND ND ND See Notes 2,4

DDE(o,p') ng/L ND ND ND See Notes 2,4

DDE(p,p') ng/L ND ND ND See Notes 2,4

DDT(o,p') ng/L ND ND ND See Notes 2,4

DDT(p,p') ng/L ND ND ND See Notes 2,4

Field Measurements

pH pH units 7.1 7.36 7.21 6.5 to 8.5



Bacteria


Conventionals


Constituent

Reference Values5,6

315





Units 11/20/2016 12/15/2016 1/9/2017 Limits Values ValuesConstituent

Reference Values5,6







Elements



Copper, total µg/L 19.279 12.902 9.355 31.4

Iron, total µg/L 228.5 169.12 162.12

Lead, total µg/L 0.255 0.144 0.248 244

Zinc, total µg/L 13.57 7.86 7.4 248

Toxicity 7




Acenaphthene ng/L ND ND 4



316





Units 11/20/2016 12/15/2016 1/9/2017 Limits Values ValuesConstituent

Reference Values5,6








Fluoranthene ng/L ND 1.2 1.4

Fluorene ng/L 4.9 5 ND



Phenanthrene ng/L 1.6 2 1.4

Pyrene ng/L 1.4 ND 2

317


318

Table3.29c.ResultsforTier1ProjectSite12‐335(1194RInlet)





Units 11/20/2016 12/15/2016 1/9/2017

TMDL Specific Constituents ‐ Chlorinated Pesticides

Toxaphene ng/L ND ND ND

Cadmium, dissolved µg/L 0.047 ND 0.017

Copper, dissolved µg/L 25.016 11.495 14.594

Lead, dissolved µg/L 0.081 0.05 0.033

Zinc, dissolved µg/L 84.09 45.17 50.51

DDD(o,p') ng/L ND ND ND

DDD(p,p') ng/L ND ND ND

DDE(o,p') ng/L ND ND ND

DDE(p,p') ng/L ND ND ND

DDT(o,p') ng/L ND ND ND

DDT(p,p') ng/L ND ND ND

Field Measurements

pH pH units 8.43 8.47 6.73



Bacteria


Conventionals

Hardness as CaCO3 mg/L 27 18 20.6




Total Kjeldahl Nitrogen mg/L 1.46 0.84 1



Elements


Constituent1

319






Units 11/20/2016 12/15/2016 1/9/2017Constituent1


Copper, total µg/L 52.645 15.593 29.988

Iron, total µg/L 1032.44 337.51 549.11

Lead, total µg/L 3.188 0.962 1.979

Zinc, total µg/L 229.34 68.2 119.23

Toxicity 7

Chronic Toxicity, Biomass P/F Pass Fail Pass




Acenaphthylene ng/L 10.8 ND 4.7

Anthracene ng/L 9.4 3.9 7.7


Benzo(a)pyrene ng/L 49.8 3.7 30

Benzo(b)fluoranthene ng/L 33.8 5 21.8


Benzo(k)fluoranthene ng/L 9.1 ND 13.5

Chrysene ng/L 47.9 9.6 48.9

Dibenz(a,h)anthracene ng/L 28.6 ND ND



Indeno(1,2,3-c,d)pyrene ng/L 39.4 ND 9.4


Phenanthrene ng/L 39.4 10 24.7

Pyrene ng/L 159.2 12.7 87

320

Table 3.29d. Results for Tier 1 Project Site 12-336 (1194R Outlet)





TMDL Specific Constituents - Chlorinated Pesticides

Toxaphene ng/L ND ND ND See Notes 2,4 730

Cadmium, dissolved µg/L 0.08 0.009 0.033 See Notes 2,3 10.8

Copper, dissolved µg/L 21.655 13.883 9.917 See Notes 2,3 30.2

Lead, dissolved µg/L 0.079 0.026 0.019 See Notes 2,3 162

Zinc, dissolved µg/L 6.8 5.17 3.39 See Notes 2,3 243

DDD(o,p') ng/L ND ND ND See Notes 2,4

DDD(p,p') ng/L ND ND ND See Notes 2,4

DDE(o,p') ng/L ND ND ND See Notes 2,4

DDE(p,p') ng/L 19.6 7.5 ND See Notes 2,4

DDT(o,p') ng/L ND ND ND See Notes 2,4

DDT(p,p') ng/L ND ND ND See Notes 2,4

Field Measurements

pH pH units 7.52 7.6 7.31 6.5 to 8.5



Bacteria


Conventionals


Constituent1

Reference Values5,6

321





Units 11/20/2016 12/15/2016 1/9/2017 Limits Values ValuesConstituent1

Reference Values5,6


Oil & Grease mg/L 1.4 1 ND





Elements



Copper, total µg/L 23.575 15.765 10.673 31.4

Iron, total µg/L 253.83 250.46 80.36

Lead, total µg/L 0.319 0.273 0.132 244

Zinc, total µg/L 9.61 7.89 4.18 248

Toxicity 7






Anthracene ng/L 9 3.8 ND

322





Units 11/20/2016 12/15/2016 1/9/2017 Limits Values ValuesConstituent1

Reference Values5,6








Fluoranthene ng/L ND 1.2 1.1

Fluorene ng/L 1.6 1.6 ND


Naphthalene ng/L 4.9 4 2.7

Phenanthrene ng/L ND 3.7 3.1

Pyrene ng/L 1.3 ND 1.2

323

Table 3.29a, b, c, d. (cont’d) Abbreviations and Acronyms:


Notes: 1. As described in Section 3.1.2, the four District 12 sites used the same monitoring strategy as last year. Only the 3-hour storm event results are presented

in the data tables. The full storm event results for the 12-15-2016 storm event (SE #2) for all four sites are presented in Appendix A. 2. San Diego Creek Watershed, Organochlorine Compounds and PCBs TMDLs. The waste load allocations for Total DDT, Chlordane, Total PCBs, and

Toxaphene are 39.2 gm/yr, 25.2 gm/yr, 12.4 gm/yr and 0.6 gm/yr, respectively. However, based on Resolution No. RS-2011-0037 both chlordane and PCBs are now informational TMDLs with no associated waste load allocations.

3. San Diego Creek and Newport Bay Toxics TMDL. Waste load allocations for cadmium, copper, lead, and zinc based on receiving water flow. 4. Source: Order WQ 2014-0077-DWQ Amendment to State Water Board Order 2012-0011-DWQ Department of Transportation Statewide Storm Water



324


325

Section 4

TIER 2 MONITORING The total number of Tier 1 sites exceeded the NPDES Permit requirement of 100; therefore, no Tier 2 sites were monitored during the 2016–17 wet season.


326



327

Section 5

CORRECTIVE ACTIONS 5.1 ASBS SITES The state is divided into three regions for ASBS monitoring—each region has a distinct set of NWQ values. The NWQ values and the comparisons of water quality results to NWQ values are presented in Section 2.3. Table 5.01 lists the constituents that exceed natural water quality, by ASBS, that have been identified to date. Table 5.01. ASBS Exceedances to Date

ASBS

ORW Site ID

Constituents that Exceed Natural Water Quality (to Date)

ASBS 05 (Saunders)

1-338

None ASBS 08 (Redwoods)

1-323

Total Suspended Solids, Arsenic, Copper, Lead, Mercury,

Nickel, Selenium ASBS 09 (Fitzgerald)

4-342

Dissolved Orthophosphate, Total Suspended Solids,

Copper, Lead, Zinc, Toxicity ASBS 15 (Ano Nuevo)

4-346

Fecal Coliform, Enterococcus, Total Suspended Solids, Oil & Grease, Nitrate, Arsenic, Cadmium,

Chromium, Copper, Lead, Mercury, Nickel, Zinc ASBS 34 (Carmel Bay)

5-305

Cadmium, Lead,

Mercury, Zinc ASBS 24 (Laguna to Latigo)

7-369

Ammonia, Selenium, PAHs1 ASBS 33 (Irvine Coast)

12-351

See Note 2 Notes: 1. The list of exceedances in the Annual Report does not include PAHs. This exceedance was identified after the

Annual Report was finalized. 2. In the 2015–16 MRR, selenium and copper were listed as constituents that exceeded NWQ values in ASBS 33.

During the 2016–17 wet season, Caltrans determined that, with one exception, it no longer has direct discharges to the ASBS.


328

5.1.1 ASBS 05 Nine storm events have been captured to date in ASBS 05, and no exceedances have been identified. Caltrans has requested release from monitoring requirements in ASBS 05. 5.1.2 ASBS 08 Six storm events have been captured to date in ASBS 08, and seven exceedances have been identified. Caltrans has requested release from monitoring requirements in ASBS 08. Caltrans is assessing its next steps. 5.1.3 ASBS 09 Nine storm events have been captured to date in ASBS 09, and six exceedances have been identified. Caltrans has requested release from monitoring requirements in ASBS 09. Caltrans is assessing its next steps. 5.1.4 ASBS 15 Eight storm events have been captured to date in ASBS 15, and thirteen exceedances have been identified. Caltrans has requested release from monitoring requirements in ASBS 15. Caltrans is assessing its next steps. 5.1.5 ASBS 34 Six storm events have been captured to date in ASBS 34, and four exceedances have been identified. Caltrans has requested release from monitoring requirements in ASBS 34. Caltrans is assessing its next steps. 5.1.6 ASBS 24 Four storm events have been captured to date in ASBS 24, and three exceedances have been identified. Caltrans plans to continue monitoring in the 2017–18 wet season.


329

5.1.7 ASBS33

Fifteen storm events have been captured to date in ASBS 33. During the 2016–17 wet season, Caltrans conducted additional investigations of the monitoring sites. Caltrans determined that, with one exception, its outfalls do not directly drain to the ASBS. Stormwater BMPs to be implemented in ASBS 33 are described in the Caltrans ASBS Compliance Plan. The State Water Board issued a letter to Caltrans releasing Caltrans from monitoring requirements in this ASBS. The letter is provided in Appendix E. 5.2 TMDLSITES

The next steps for TMDL sites, including the TMDL monitoring projects on hold discussed in Section 3.1.3, are described below by TMDL Project. 5.2.1 ChollasCreekProject Caltrans has constructed bio‐infiltration swales and modular infiltration trenches to address the Chollas Creek Diazinon TMDL and the Dissolved Metals TMDL. These BMPs are monitored for effectiveness. Caltrans plans to continue monitoring for the 2017–18 wet season. 5.2.2 Tier1Project The Tier 1 Project includes monitoring several BMPs—see Table 3.03. These BMPs are monitored for effectiveness. Caltrans plans to continue monitoring for the 2017–18 wet season. 5.2.3 District8CoachellaValleyTMDLMonitoringProject

As noted in Section 3.1.3, Caltrans is waiting for direction from the Colorado River Basin Water Board on the next phase of the TMDL.


330

5.2.4 RainbowCreekTMDLMonitoringProject

As noted in Section 3.1.3, the San Diego Basin Regional Water Board issued a letter to Caltrans reducing TMDL monitoring requirements to once every five years. The letter also stated that discharges from Caltrans’ right‐of‐way are in compliance with the Rainbow Creek Total Nitrogen and Total Phosphorus TMDL. The next reporting period for Caltrans is October 1, 2020 to September 30, 2021. The letter is provided in Appendix E.


331

Section6

SITESPROPOSEDTOBERELEASEDFROMMONITORING 6.1 ASBSSITES

Caltrans has requested to the State Water Board that all monitoring sites within ASBS 05, 08, 09, 15, 34, and 33 be released from monitoring requirements. The request for release of monitoring requirements in ASBS 05, 08, 09, 15, and 34 was made because the minimum number of storm events, and in some cases more, have been captured at these sites. The State Water Board has verbally agreed to a one‐year suspension of monitoring for the 2017–18 wet season at these sites. The request for release of monitoring requirements in ASBS 33 was made because four of the five ASBS 33 sites were determined to either not directly discharge to the ocean or not consist of Caltrans runoff. Only one site in ASBS 33, Site 12‐358 (IRV001), discharges to the ocean. The State Water Board has agreed to remove from the Permit the four sites that either do not directly discharge to the ocean or do not consist of Caltrans runoff. The State Water Board has also suspended future monitoring requirements at ASBS 33 until the implementation of BMPs, as identified in Caltrans ASBS Compliance Plan. The State Water Board plans to release an amendment to the Caltrans NPDES Permit that contains the removal of four of the five listed ASBS 33 outfalls. 6.2 TMDLSITES Caltrans will evaluate the data collected to date to assess if monitoring can be discontinued at those sites where enough data has been collected.


332



333

Section 7

REFERENCES Caltrans 2016. Statewide Monitoring Program for Compliance with NPDES Permit No.

2012-0011-DWQ Areas of Special Biological Significance Quality Assurance Project Plan. Document No. CTSW-PL-16-327.03.3. August 2016.

SCCWRP 2015. Near-Coastal Water Quality at Reference Sites Following Storm Events.

Technical Report 853. February 2015. SCCWRP 2003. Final Report: Discharges into State Water Quality Protection Areas. Final Report

to the State Water Resources Control Board. Contract 01-187-250. July 2003. State Water Board 2012. Order No. 2012-0011-DWQ, NPDES No. CAS000003, National

Pollutant Discharge Elimination System (NPDES) Statewide Storm Water Permit Waste Discharge Requirements (WDRs) for State of California, Department of Transportation. September 19, 2012.


334


APPENDIX A

Water Quality Data for the 2016–17 Wet Season

(Electronic Only)


APPENDIX B

Monitoring Reports from Cooperative Agreements

(Electronic Only)


APPENDIX C

ASBS Additional Information



C-1

Appendix C ASBS Additional Information C.1 REGIONAL MONITORING GROUPS On February 12, 2012, the State Water Board finalized the Program Final Environmental Impact Report Exception to the California Ocean Plan Areas of Special Biological Significance Waste Discharge Prohibition for Storm Water and Nonpoint Source Discharges, with Special Protections (PFEIR) (State Water Board 2012). In Chapter 7 of the PFEIR, the state is divided into three monitoring groups for regional monitoring: (1) No. CA RMG, (2) Ce. Coast RMG, and (3) So. CA RMG. The ASBS with Caltrans discharges categorized by RMGs are listed in Table C.1. Table C.1. Regional Monitoring Groups with Associated ASBS

Northern California Regional Monitoring

Group

Central Coast Regional Monitoring

Group

Southern California Regional Monitoring

Group

ASBS 05 (Saunders) ASBS 09 (Fitzgerald) ASBS 24 (Laguno to Latigo)

ASBS 08 (Redwoods) ASBS 15 (Ano Nuevo) ASBS 33 (Irvine Coast)

ASBS 34 (Carmel Bay)

C.2 HISTORICAL MONITORING AND REPORTING RESPONSIBILITES Tables C.2, C.4, C.6, and C.8 summarize the monitoring responsibilities by organization with respect to outfall monitoring, ORW monitoring, and ORA monitoring. Tables C.3, C.5, C.7, and C-9 summarize which organizations prepared the reports for outfall monitoring, ORW monitoring, and ORA monitoring results. Caltrans has entered into data sharing agreements with each of the RMGs. Under these agreements, Caltrans provides the results of its ORW monitoring. Caltrans does not receive ORW data from the other dischargers or the ORA data collected by others. Caltrans receives the natural water quality values that are based on an analysis of the ORA data.


C-2

C.2.1 2012–13 Wet Season For the 2012–13 wet season, Caltrans did not conduct monitoring at its outfall or ORW sites within the Northern California and Central Coast RMG areas. Caltrans conducted outfall monitoring and ORW monitoring at its sites within the Southern California RMG area. The Southern California RMG monitoring consultant, the Southern California Coastal Water Research Project (SCCWRP), conducted ORA monitoring within its area. Caltrans outfall monitoring and ORW monitoring data were reported in its annual MRR. The ORA data were reported by the monitoring consultant for the Southern California RMG in a separate document. Table C.2. 2012–13 Monitoring Responsibilities by Organization

Monitoring No. CA RMG Ce. Coast RMG So. CA RMG

Outfalls1 No monitoring No monitoring CT

Ocean Receiving Water No monitoring No monitoring CT

Ocean Reference Area No monitoring No monitoring RMG

Notes: 1. Coupled and uncoupled outfalls.

Table C.3. 2012–13 Reporting of Monitoring Results by Organization


Outfalls No report1 No report1 MRR2

Ocean Receiving Water No report1 No report1 MRR2

Ocean Reference Area No report1 No report1 TR 8533

Notes: 1. No monitoring conducted. 2. Caltrans 2013. Monitoring Results Report: Fiscal Year 2012/13. Document No. CTSW-RT-13-312.01.01.

Caltrans. September 2013. 3. SCCWRP 2015. Near Coastal Water Quality at Reference Sites Following Storm Events. Technical Report 853.

SCCWRP. February 2015.


C-3

C.2.2 2013–14 Wet Season For the 2013–14 wet season, Caltrans conducted outfall monitoring and ORW monitoring at its sites within all three RMG areas. SCCWRP was under contract with the State Water Board to conduct ORA monitoring at sites within the Northern and Southern California RMG areas. The Central Coast RMG monitoring consultant, Applied Marine Sciences (AMS), conducted ocean reference area monitoring within its area. Caltrans outfall monitoring and ORW monitoring data were reported in its annual MRR. The ORA data for all three RMG areas were reported by SCCWRP in a separate document. In addition to the separate document by SCCWRP, AMS prepared an interim report for all dischargers that are a part of the Central California RMG. This report covers outfall monitoring, ORW monitoring, and ORA monitoring results for all dischargers except Caltrans. Table C.4. 2013–14 Monitoring Responsibilities by Organization


Outfalls1 CT CT CT

Ocean Receiving Water CT CT CT

Ocean Reference Area SCCWRP2 RMG RMG

Notes: 1. Coupled and uncoupled outfalls. 2. SCCWRP was under contract by the State Water Board to collect samples at the ocean reference area sites

within the Northern California RMG area.



Outfalls MRR1 MRR1 MRR1

Ocean Receiving Water MRR1 MRR1 MRR1

Ocean Reference Area TR8532 TR8532, 3 TR8532

Notes: 1. Caltrans 2014. Monitoring Results Report: Fiscal Year 2013/14. Document No. CTSW-RT-14-312.01.02.

Caltrans. October. 2. SCCWRP 2015. Near Coastal Water Quality at Reference Sites Following Storm Events. Technical Report 853.

SCCWRP. February. 3. Central Coast RMG 2015. Central California Regional Monitoring Program Stormwater Discharges into Areas

of Special Biological Significance Interim Report 2013–14. July 15.


C-4

C.2.3 2014–15 Wet Season For the 2014–15 wet season, Caltrans conducted outfall monitoring and ORW monitoring at its sites within all three RMG areas. Additionally, Caltrans conducted ORA monitoring at two sites in the Northern California RMG area. Other ASBS dischargers in the Northern California RMG area were required to conduct their own ORA monitoring. The Central Coast RMG monitoring consultant, AMS, conducted ocean reference area monitoring within its area. No monitoring was conducted in the Southern California RMG area since ORA monitoring has been completed. Caltrans outfall monitoring, ORW monitoring data, and ORA monitoring data were reported in its annual MRR. The Central Coast RMG monitoring consultant, AMS, did not prepare an interim report for the 2014–15 wet season. The data from the 2014–15 wet season is presented in a final report following the 2015–16 wet season. Table C.6. 2014–15 Monitoring Responsibilities by Organization


Outfalls1 CT CT CT


Ocean Reference Area CT2 RMG Monitoring Complete

Notes: 1. Coupled and uncoupled outfalls. 2. Caltrans monitored two ORA sites: one for ASBS 05 (Saunders) and one for ASBS 08 (Redwoods). The other

dischargers from the No. CA RMG monitored the remaining ORA sites.





Ocean Reference Area MRR1 No Report2 No Report3

Notes: 1. Caltrans 2015. Monitoring Results Report: Fiscal Year 2014–15. Document No. CTSW-RT-15-312.01.02.

Caltrans. October. 2. The Central Coast RMG did not prepare an interim report for the 2014–15 wet season. The data collected for

the 2014–15 wet season will be presented in the final report, which will include all wet seasons. The final report was submitted August 2016.

3. Monitoring is complete.


C-5

C.2.4 2015–16 Wet Season For the 2015–16 wet season, Caltrans conducted outfall monitoring and ORW monitoring at its sites within all three RMG areas. Additionally, Caltrans conducted ORA monitoring at two sites in the Northern California RMG area. Other ASBS dischargers in the Northern California RMG area were required to conduct their own ORA monitoring. The Central Coast RMG monitoring consultant, AMS, conducted ocean reference area monitoring within its area. No monitoring was conducted in the Southern California RMG area since ORA monitoring has been completed. Caltrans outfall monitoring, ORW monitoring data, and ORA monitoring data were reported in its annual MRR. The Central Coast RMG monitoring consultant, AMS, did not prepare an interim report for the 2015–16 wet season. The data from the 2015–16 wet season is presented in a final report following the 2015–16 wet season. Table C.8. 2015–16 Monitoring Responsibilities by Organization


Outfalls1 CT CT CT


Ocean Reference Area CT2 RMG Monitoring Complete

Notes: 1. Coupled and uncoupled outfalls. 2. Caltrans monitored two ORA sites: one for ASBS 05 (Saunders) and one for ASBS 08 (Redwoods). The other

dischargers from the No. CA RMG monitored the remaining ORA sites.





Ocean Reference Area MRR1 RMG2 No Report3

Notes: 1. AMS 2016. Final Report 2013–2016 Central Coast Regional Monitoring Program Water Quality in Areas of

Special Biological Significance. August 29, 2016. 2. Caltrans 2016. Monitoring Results Report: Fiscal Year 2015–16. Document No. CTSW-RT-16-312.01.02.

Caltrans. October. 3. Monitoring is complete.


C‐6

C.3 ANNUALRUNOFFVOLUMEESTIMATE

The annual runoff volumes presented in the data tables for Section 2 are estimated for each ASBS outfall as follows:

Vrunoff = RV * Vrainfall = RV * A * Drainfall

Where:

RV = dimensionless volumetric runoff coefficient, calculated as follows (Reese 2006):

RV = 0.0091 * I ‐ 0.0204

Where:

I = percent imperviousness (%)

A = catchment area (ft2) Drainfall = seasonal precipitation (ft)

The catchment area and the percent imperviousness are estimated from as‐builts and, where possible, verified in the field during storm events. The seasonal precipitation data comes from nearby rain gauges. These rain gauges are composed of: No. CA RMG Rain Gauges:

Mesowest Rain Gauge Station ORIC1 Mesowest Rain Gauge Station TERC1


C-7

Ce. Coast Rain Gauges: • Caltrans rain gauge installed near monitoring site

• Weather Underground Rain Gauge Station KCACARME19

• Weather Underground Rain Gauge Station KCAMOSSB3 So. CA Rain Gauges:

• Big Rock Mesa Precipitation Station

• Electric Avenue Pumping Plant Station • Lechuza Patrol Station #72 • Leo Carrillo Beach RAWS Station LCBC1 • Monte Nido FS Station #67 • Santa Monica Mountains Deals Flat Station • Corona Del Mar Station E3141 • Laguna Beach Station LAGC1 • Newport Beach Station 3L3


C-8


APPENDIX D

Water Quality Reference Values for TMDL Sites



D-1

Appendix D Water Quality Reference Values for TMDL Sites D.1 WATER QUALITY REFERNCE VALUES Tables D.01 through D.19 contain the reference values used in the TMDL data tables in Section 3.


D-2


Table D.01. Reference Values for Tier 1 Project Site 1-341

Units Acute Chronic Acute Chronic

Conventionals

pH pH units

Temperature Degrees F

TDS (90% Upper Limit)b mg/L 275b

TDS (50% Upper Limit)a mg/L 140a

Nutrients

Nitrate (as N) mg/L 10

Metals (Totals Only)

Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d

Lead µg/L 65a,c,d 2.5a,c,d 50

Zinc µg/L 120a,b,c,d 120a,b,c,d

Constituent Notes

a. 50% upper and lower limits represent the 50 percentile values of the monthly means for a calendar year. 50% or

more of the monthly means must be less than or equal to an upper limit and greater than or equal to a lower limit.

b. 90% upper and lower limits represent the 90 percentile values for a calendar year. 90% or more of the values must

be less than or equal to an upper limit and greater than or equal to a lower limit.

California Toxics Rule

1. Water Quality Standards; Establishment of Numeric Criteria for Priority Toxic Pollutants for the State of California;

Rule. 40 CFR Part 131. May 2000. Blank spaces indicate the absence of national section 304(a) criteria guidance.

a. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on the default CTR

hardness value of 100 mg/l as calcium carbonate (CaCO3). No site specific hardness data available.

b. This criterion has been updated pursuant to the 1995 Updates: Water Quality Criteria Documents for the

Protection of Aquatic Life in Ambient Water, Office of Water, EPA-820-B-96-001, September 1996.

c. Criteria for these metals are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is assumed

because no site specific data are available.

d. These freshwater and saltwater criteria for metals are expressed in terms of the dissolved fraction of the metal in

the water column. Criterion values were calculated by using USEPA’s Clean Water Act 304(a) guidance values

(described in the total recoverable fraction) and then applying the conversion factors in #131.36(b)(1) and (2).

Constituent

≤ 5°F increase

6.5 - 8.5

California Toxics Rule1

Freshwater

Region 1 Basin Plan1

Freshwater


Region 1 Basin Plan

1. The Basin Plan incorporates by reference the primary drinking water MCLs specified in Title 22 of the California

Code of Regulations. Surface waters designated for use as domestic or MUN shall not contain concentrations of

constituents in excess of the MCLs in Table 64431-A (Inorganic Chemicals), Table 64433.2-A (Fluoride),

Table 64444-A (Organic Chemicals), and Table 64449-A (Consumer Acceptance Limits) and 64449-B (Ranges) of

Title 22. Values displayed above in the table are primary MCLs unless specified.







Conventionals

pH pH units




Nutrients



Aluminum µg/L 1000




Constituents Notes

















Constituent

6.5 - 8.5

≤ 5°F increase

California Toxics Rule1 Region 1 Basin Plan1

Freshwater Freshwater


Region 1 Basin Plan










Table D.03. Reference Values for Tier 1 Project Sites 2-303 and 2-304


Conventionals


pH pH units


Nutrients

Nitrate as N mg/L 10

Nitrite as N mg/L 1.0


Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 50

Lead µg/L 65a,c,d 2.5a,c,d 50 22

Zinc µg/L 120a,b,c,d 120a,b,c,d 51













Region 1 Basin Plan

1. The Basin Plan incorporates by reference the primary drinking water MCLs specified in Title 22 of the California Code

of Regulations. Surface waters designated for use as domestic or MUN shall not contain concentrations of

constituents in excess of the MCLs in Table 64431-A (Inorganic Chemicals), Table 64433.2-A (Fluoride), Table 64444-A

(Organic Chemicals), and Table 64449-A (Consumer Acceptance Limits) and 64449-B (Ranges) of Title 22. Values

displayed above in the table are primary MCLs unless specified.

Constituent

≤ 5°F increase

7.0 to 8.5

Freshwater

Region 1 Basin Plan1California Toxics Rule1

Freshwater




Conventionals


pH pH units


Nutrients



Aluminum µg/L 1000
















Region 1 Basin Plan






≤ 5°F increase

7.0 to 9.0

Freshwater


Freshwater


Constituent




Conventionals



pH pH units

Temperature Degrees C

Nutrients



Aluminum µg/L 1000




Constituent Notes










b. This criterion has been updated pursuant to the 1995 Updates: Water Quality Criteria Documents for the Protection

of Aquatic Life in Ambient Water, Office of Water, EPA-820-B-96-001, September 1996.






Constituent

Freshwater


≤ 5°F increase

6.5 to 8.5

Freshwater



Region 1 Basin Plan












Conventionals


Turbidity NTU See Belowc 50

pH pH units


Nutrients



Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 5.6b

Iron µg/L 300

Lead µg/L 65a,c,d 2.5a,c,d

Zinc µg/L 120a,b,c,d 120a,b,c,d 16b

Microbiological

Fecal Coliform MPN/100 mL 200/400b

Other

Methylmercury ng/L 0.08/0.24a













Region 5 Basin Plan


6.5 to 8.5

≤ 5°F increase

Constituent

Region 5S Basin Plan1California Toxics Rule1

FreshwaterFreshwater






a. The average methylmercury concentrations shall not exceed 0.08 and 0.24 mg methylmercury/kg, wet weight, in

muscle tissue of trophic level 3 and 4 fish, respectively (150-500 mm total length). The average methylmercury

concentrations shall not exceed 0.03 mg methylmercury/kg, wet weight, in whole fish less than 50 mm in length.

b. In waters designated for contact recreation (REC-1) the fecal coliform concentration based on a minimum of not

less than five samples for any 30-day period shall not exceed a geometric mean of 200/100 ml, nor shall more than

ten percent of the total number of samples taken during any 30-day period exceed 400/100 ml.

c. Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Increases in

turbidity attributable to controllable water quality factors shall not exceed the following limits: • Where natural

turbidity is less than 1 Nephelometric Turbidity Unit (NTU), controllable factors shall not cause downstream water

turbidity to exceed 2 NTUs. • Where natural turbidity is between 1 and 5 NTUs, increases shall not exceed 1 NTU.

• Where natural turbidity is between 5 and 50 NTUs, increases shall not exceed 20 percent. • Where natural turbidity

is between 50 and 100 NTUs, increases shall not exceed 10 NTUs. • Where natural turbidity is greater than 100 NTUs,

increases shall not exceed 10 percent. To determine compliance with the above limits, appropriate averaging periods

may be applied provided that beneficial uses will be fully protected.



Conventionals

Total Settleable Solids mL/L/hr

Turbidity NTU

pH pH units


Nutrients



Aluminum µg/L 1000




Microbiological

Fecal Coliform MPN/100 mL 20/75a











the water column. Criterion values were calculated by using USEPA’s Clean Water Act 304(a) guidance values (described

in the total recoverable fraction) and then applying the conversion factors in #131.36(b)(1) and (2).

Region 6 Basin Plan


of Regulations. Surface waters designated for use as domestic or MUN shall not contain concentrations of constituents

in excess of the MCLs in Table 64431-A (Inorganic Chemicals), Table 64433.2-A (Fluoride), Table 64444-A (Organic

Region 6SLT Basin Plan1

Freshwater


Freshwater

Constituent

≤ 0.1 mL/L increase

≤ 3 NTU increase

6.5 to 8.5

≤ 5°F increase


Chemicals), and Table 64449-A (Consumer Acceptance Limits) and 64449-B (Ranges) of Title 22. Values displayed

above in the table are primary MCLs unless specified.

a. The fecal coliform concentration based on a minimum of not less than five samples for any 30-day period, shall not

exceed a log mean of 20/100 ml nor shall more than 10 percent of total samples during any 30-day period exceed

75/100 ml.


Units Acute Chronic Acute Chronic Acute Chronic

Bacteria

Enterococcus MPN/100 mL 151 500


Copper µg/L 18b,c 12b,c 18a,b,c,g 12a,b,c,g 5.8a,d 3.7a,d

Lead µg/L 114a,c 4.44a,c 114a,b,c,h 4.4a,b,c,h 221a,b,d 8.5a,b,d

Mercury µg/L 2.4a,i 0.025a,i 2.1a,e 0.025a,e

Zinc (Dissolved) µg/L 146b,c,d 148b,c,d 146a,f,k 148a,f,k 90a,b,c,d 81a,b,c,d

Zinc µg/L 150b,c 150b,c 150a 150a 95a,b,d 86a,b,d

Polychlorinated Biphenyls

Total PCBs µg/L 0.014e




a. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on NPDES

No. CA0005240 hardness value of 130 mg/l as calcium carbonate (CaCO3) for Carquinez Strait.



c. Criteria for these metals are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is assumed because

no site specific data are available.

d. These freshwater and saltwater criteria for metals are expressed in terms of the dissolved fraction of the metal in the

water column. Criterion values were calculated by using USEPA’s Clean Water Act 304(a) guidance values (described in

the total recoverable fraction) and then applying the conversion factors in #131.36(b)(1) and (2).

e. PCBs are a class of chemical that include aroclors 1242, 1254, 1221, 1232, 1248, 1260. The aquatic life criteria apply

to the sum of this set of seven aroclors.

Region 2 Basin Plan

1. Numerical freshwater quality objectives contained in Table 3-4 in the Basin Plan.

2. Numerical Marine Water quality objectives contained in Table 3-3 in the Basin Plan.

3. Carquinez Strait is classified as Estuarine, therefore both freshwater and marine water basin plan and CTR objectives

may apply.

Freshwater Notes

Constituent

California Toxics Rule1 Region 2 Basin Plan1,2,3

Freshwater Marine WaterFreshwater


a. Freshwaters are those in which the salinity is equal to or less than 1 part per thousand 95% of the time, as set forth in

Chapter 4 of the Basin Plan. Unless a site-specific objective has been adopted, these objectives shall apply to all

freshwaters except for the South Bay south of Dumbart on Bridge, where the California Toxics Rule (CTR) applies. For

waters in which the salinity is between 1 and 10 parts per thousand, the applicable objectives are the more stringent

of the marine (Table 3-3) and freshwater objectives.

b. Source: 40 CFR Part 131.38 (California Toxics Rule or CTR), May 18, 2000.

c. These objectives are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is assumed because no

site specific data are available.

d. These objectives for metals are expressed in terms of the dissolved fraction of the metal in the water column.

e. The objectives for copper are based on hardness. The hardness based objectives are calculated using the following

formulas where H = ln (hardness): The 4-day average objective for copper is e(0.8545H-1.702). The 1-hour average for

copper is e(0.9422H-1.700).

f. The objectives for lead are based on hardness. The hardness based objectives are calculated using the following

formulas where H = ln (hardness): The 4-day average objective is e(1.273H -4.705). The 1-hour average for lead is

e(1.273H-1.460).

g. Source: U.S. EPA Quality Criteria for Water 1986 (EPA 440/5-86-001), which established a mercury criterion of

0.012 ug/l. The Basin Plan set the objective at 0.025 based on considerations of the level of detection attainable at

that time.

h. The objectives for zinc are based on hardness. The hardness based objectives are calculated using the following

formulas where H = ln (hardness): The 4-day average objective for zinc is e(0.8473 H+0.884). The 1-hour average for

zinc is e(0.8473 H+ 0.884).

Marine Water Notes

a. Marine waters are those in which the salinity is equal to or greater than 10 parts per thousand 95% of the time, as

set forth in Chapter 4 of the Basin Plan. Unless a site-specific objective has been adopted, these objectives shall apply

to all marine waters except for the South Bay south of Dumbarton Bridge (where the California Toxics Rule (CTR) applies)

or as specified in note g (below). For waters in which the salinity is between 1 and 10 parts per thousand, the applicable

objectives are the more stringent of the freshwater (Table 3-4) or marine objectives.

b. Source: 40 CFR Part 131.38 (California Toxics Rule or CTR), May 18, 2000.

c. These objectives for metals are expressed in terms of the dissolved fraction of the metal in the water column.

d. According to the CTR, these objectives are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is

assumed because no site specific data are available.

e. Source: U.S. EPA Ambient Water Quality Criteria for Mercury (1984).



Conventionals

pH pH units


TDS mg/L 500

Nutrients


Organics

Diazinon ng/L 100

PCBs .014e .0005


Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 13a,b,c 9a,b,c

Lead µg/L 65a,c,d 2.5a,c,d 65a,b,d 2.5a,b,d

Zinc µg/L 120a,b,c,d 120a,b,c,d 120a,b,e 120a,b,e

Mercury 2.4 .025

Methyl Mercury 0.05 0.1













e. This criterion is expressed in the total recoverable form. This criterion was promulgated for specific waters in

California in the NTR in the total recoverable form. The specific waters to which the NTR criterion applies include:

Constituent

Freshwater


No Δ > 0.5

≤ 5°F increase

Freshwater


Waters of the San Francisco Bay upstream to and including Suisun Bay and the Sacramento–San Joaquin Delta; and

waters of Salt Slough, Mud Slough (north) and the San Joaquin River, Sack Dam to Vernalis.

Region 2 Basin Plan



constituents in excess of the MCLs in Table 64431-A (Inorganic Chemicals), Table 64433.2-A (Fluoride), Table

64444-A (Organic Chemicals), and Table 64449-A (Consumer Acceptance Limits) and 64449-B (Ranges) of Title 22.

Values displayed above in the table are primary MCLs unless specified.

a. Source: 40 CFR Part 131.38 (California Toxics Rule or CTR), May 18, 2000.

b. These objectives are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is assumed because no


c. The objectives for copper are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At

other hardnesses, the objectives must be calculated using the following formulas where H = ln (hardness): The 4-day

average objective for copper is e(0.8545H-1.702). The 1-hour average for copper is e(0.9422H-1.700).

d. The objectives for lead are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At other

hardnesses, the objectives must be calculated using the following formulas where H = ln (hardness): The 4-day

average objective is e(1.273H -4.705). The 1-hour average for lead is e(1.273H-1.460).

e. The objectives for zinc are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At other


average objective for zinc is e(0.8473 H+0.884). The 1-hour average for zinc is e(0.8473 H+ 0.884).



Conventionals


Turbidity NTU See Belowb 50

pH pH units


Nutrients



Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 5.6

Iron µg/L 300


Zinc µg/L 120a,b,c,d 120a,b,c,d 16

Hydrocarbons

Oil and Grease mg/L None allowed

Microbiological

Fecal Coliform MPN/100 mL 200/400a













Region 5 Basin Plan

≤ 5°F increase

FreshwaterFreshwater


Constituent

6.5 to 8.5







a. In waters designated for contact recreation (REC-1) the fecal coliform concentration based on a minimum of not

less than five samples for any 30-day period shall not exceed a geometric mean of 200/100 ml, nor shall more than

ten percent of the total number of samples taken during any 30-day period exceed 400/100 ml.

b. Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Increases in

turbidity attributable to controllable water quality factors shall not exceed the following limits: • Where natural

turbidity is less than 1 Nephelometric Turbidity Unit (NTU), controllable factors shall not cause downstream water

turbidity to exceed 2 NTUs. • Where natural turbidity is between 1 and 5 NTUs, increases shall not exceed 1 NTU.

• Where natural turbidity is between 5 and 50 NTUs, increases shall not exceed 20 percent. • Where natural turbidity

is between 50 and 100 NTUs, increases shall not exceed 10 NTUs. • Where natural turbidity is greater than 100 NTUs,

increases shall not exceed 10 percent. To determine compliance with the above limits, appropriate averaging periods

may be applied provided that beneficial uses will be fully protected.



Conventionals

pH pH units


TDS mg/L 500

Nutrients



Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 13a,b,c 9a,b,c



Microbiologicals

Fecal Coliform MPN/100 mL 151













Region 2 Basin Plan





Constituent

Freshwater

No Δ > 0.5

≤ 5°F increase


Freshwater


c. The objectives for copper are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At other





average objective is e(1.273H -4.705). The 1-hour average for lead is e(1.273H-1.460).



average objective for zinc is e(0.8473 H+0.884). The 1-hour average for zinc is e(0.8473 H+ 0.884).



Conventionals

pH pH units


TDS mg/L 500

Nutrients



Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 13b,c,g 9b,c,g

Lead µg/L 65a,c,d 2.5a,c,d 65b,c,h 2.5b,c,h

Zinc µg/L 120a,b,c,d 120a,b,c,d 120b,c,k 120b,c,k

Microbiologicals














Region 2 Basin Plan





Freshwater

Constituent

No Δ > 0.5

≤ 5°F increase


Freshwater


c. The objectives for copper are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At other

hardnesses, the objectives must be calculated using the following formulas where H = ln (hardness): The 4-day average

objective for copper is e(0.8545H-1.702). The 1-hour average for copper is e(0.9422H-1.700).



objective is e(1.273H -4.705). The 1-hour average for lead is e(1.273H-1.460).



objective for zinc is e(0.8473 H+0.884). The 1-hour average for zinc is e(0.8473 H+ 0.884).



Conventionals

pH pH units


TDS mg/L 500


Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 13a,b,c 9.0a,b,c



Methyl Mercury ng/L 0.05 0.1

Microbiologicals














Region 2 Basin Plan





c. The objectives for copper are based on hardness. The table values assume a hardness of 100 mg/l CaCO3. At

No Δ > 0.5

≤ 5°F increase

Constituent


Freshwater


Freshwater


other hardnesses, the objectives must be calculated using the following formulas where H = ln (hardness): The 4-day




objective is e(1.273H -4.705). The 1-hour average for lead is e(1.273H-1.460).



objective for zinc is e(0.8473 H+0.884). The 1-hour average for zinc is e(0.8473 H+ 0.884).

Table D.14. Reference Values for Tier 1 Project Sites 5-306, 5-307, and 5-308

Units Acute Chronic Hard Soft Acute

Conventionals

Hardness mg/L >100 <100


Aluminum µg/L 1000

Copper µg/L 13a,b,c,d 9.0a,b,c,d 30a 10a

Lead µg/L 65a,c,d 2.5a,c,d 30a 30a

Zinc µg/L 120a,b,c,d 120a,b,c,d 200a 4.0a

Microbiologicals

Fecal Coliform MPN/100 mL 400 200










d. These freshwater and saltwater criteria for metals are expressed in terms of the dissolved fraction of the metal

in the water column. Criterion values were calculated by using USEPA’s Clean Water Act 304(a) guidance values


Region 3 Basin Plan

1. Numerical freshwater quality objectives contained in Table 3-5 in the Region 3 Basin Plan.

a. Based on limiting values recommended in the National Academy of Sciences-National Academy of Engineers

"Water Quality Criteria 1973." Values are 90 percentile values except as noted in qualifying note "c" in Basin Plan.

Constituent

Freshwater


Freshwater


Table D.15. Reference Values for Tier 1 Project Sites 7-08, 7-09, 7-201, 7-404, 7-405, 7-406

Region 4

Units Acute Chronic Basin Plan


Cadmium (Total) µg/L 10.4a,b,c 4.4a,b,c

Copper (Total) µg/L 28.04b,c 17.5b,c

Lead (Total) µg/L 209a,c 8.1a,c

Zinc (Total) µg/L 224b,c 224b,c

Field Measurements

pH pH 6.5 to 8.5

Conventionals





a. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on the CTR default

hardness value of 209 mg/l as calcium carbonate (CaCO3) given for Reach 4 in Appendix A Los Angeles River Metals

TMDL Basin Plan Amendment Approved by Los Angeles Regional Water Quality Control Board, September 6, 2006.

b. This criterion has been recalculated pursuant to the 1995 Updates: Water Quality Criteria Documents for the




Constituent


Freshwater



Region 4



E. coli per 100 mL 235a

Enterococcus per 100 mL 104a

Fecal Coliform per 100 mL 400a

Total Coliform per 100 mL 10000a

Field Measurements

pH pH 6.5 to 8.5

Conventionals

Total Nitrogen mg/L 10



Copper µg/L 52b.c 30b,c

Lead µg/L 477a,c 19a,c

Zinc µg/L 388b,c 388b,c




a. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs calcuated using the maximum

CTR hardness value of 400 mg/l as calcium carbonate (CaCO3) based on average hardness of 700 mg/L in Malibu Creek

& Lagoon TMDL for Sedimentation and Nutrients to Address Benthic Community Impairments, EPA Region IX (2013).





Region 4 Basin Plan

a. Single Sample Limit.


Freshwater

Constituent




Field Measurements

pH pH 6.5 to 8.0

Bacteria

E. coli MPN/100 mL 235


Aluminum µg/L

Copper µg/L 14c,d 9.3c,d

Iron µg/L 300

Lead µg/L 82b,d 3.2b,d

Zinc µg/L 120c,d 120c,d










Constituent

Freshwater

California Toxics Rule1 Region 5 Basin Plan

Freshwater


Table D.18. Reference Values for Tier 1 Project Sites 11-340, 11-341, 11-343, 11-344, 11-346,

11-350, 11-351, 11-352, 11-353, 11-355, and 11-356

General

Units Acute Chronic Objectives Acute


Copper µg/L 12b,c,d 8.2b,c,d 12a

Diazinon µg/L 0.072

Lead µg/L 58a,c,d 2.3a,c,d 58a

Zinc µg/L 108b,c,d 109b,c,d 108a

Field Measurements

pH pH 6.5 to 8.5

Bacteria

Fecal Coliform µg/L 4000b

Conventionals

Phosphorus (Total) mg/L 0.1c

Elements

Chromium (Total) µg/L 1605c 191c

Copper (Total) µg/L 13b,c 8.6b,c 13a

Lead (Total) µg/L 72a,c 2.8a,c 72a

Zinc (Total) µg/L 110b,c 110b,c 110a




a. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on hardness value of

90.8 mg/l as calcium carbonate (CaCO3) in Appendix G, Metals Concentration Reduction Percentages Required to

Meet the Chollas Creek Metals Total Maximum Daily Loads. California Regional Water Quality Control Board, San

Diego Region.



c. Criteria for these metals are expressed as a function of the water-effect ratio (WER). A WER of 1.0 is assumed



Region 9 Basin PlanCalifornia Toxics Rule1

Freshwater

Constituent

Table D.18. Reference Values for Tier 1 Project Sites 11-340, 11-341, 11-343, 11-344, 11-346,



Region 9 Basin Plan

a. The TMDL numeric targets for copper, lead, and zinc are set equal to the numeric water quality criteria as defined

in the California Toxics Rule (CTR) and shown below. Because the concentration of a dissolved metal causing a toxic

effect varies significantly with hardness, the water quality criteria are expressed in the CTR as hardness based

equations. The numeric targets are equal to the loading capacity of these metals in Chollas Creek.

b. In waters designated for non-contact recreation (REC-2) and not designated for contact recreation (REC-1), the

average fecal coliform concentrations for any 30-day period, shall not exceed 2,000 organisms per 100 ml nor shall

more than 10 percent of samples collected during any 30-day period exceed 4,000 organisms per 100 ml. Not a

single sample reference value.

c. A desired goal in order to prevent plant nuisance in streams and other flowing waters appears to be 0.1 mg/l

total P. These values are not to be exceeded more than 10% of the time unless studies of the specific water body in

question clearly show that water quality objective changes are permissible and changes are approved by the

Regional Board. Not a single sample reference.

Table D.19. Reference Values for Tier 1 Project Sites 12-329, 12-330, 12-336, and 12-356

Region 8



Cadmium (Dissolved) µg/L 10.8b,c,d,e 4.2b,c,d,e

Copper (Dissolved) µg/L 30.2c,d,e 19c,d,e

Lead (Dissolved) µg/L 162b,d,e 6.3b,d,e

Zinc (Dissolved) µg/L 243c,d,e 245c,d,e

Toxaphene µg/L 0.73 0.0002

4,4'-DDT µg/L 1.1a 0.001a

Field Measurements

pH pH 6.5 to 8.5

Conventionals


Bacteria

Fecal Coliform per 100 mL 400a


Copper µg/L 31.4c,d 19c,d

Lead µg/L 244b,d 9.5b,d

Zinc µg/L 248c,d 248c,d




a. This criterion is based on 304(a) aquatic life criterion issued in 1980.

b. Conversion Factors for these pollutants in freshwater are hardness dependent. CFs are based on hardness value of

236 mg/l as calcium carbonate (CaCO3) in Table 5-2 of Total Maximum Daily Loads For Toxic Pollutants San Diego

Creek and Newport Bay, California (US EPA Region 9).

c. This criterion has been updated pursuant to the 1995 Updates: Water Quality Criteria Documents for the


d. Criteria for these metals are expressed as a function of the water-effect ratio (WER). A WER 0f 1.0 is assumed


e. These freshwater and saltwater criteria for metals are expressed in terms of the dissolved fraction of the metal in


Constituent

Freshwater


Table D.19. Reference Values for Tier 1 Project Sites 12-329, 12-330, 12-336, and 12-356


Region 8 Basin Plan

a. REC-1 standard: Not more than 10% of the samples exceed 400 organisms/100 mL for any 30-day period.

APPENDIX E

State Water Board and Regional Water Board Communications
