San Sevaine Startup Period Report-final20120208 - Inland Empire Utilities Agency · 2020. 7. 22. · tr (a S th • S th re th ch ar • S de m D • S S 20 S • A ti pr de ef fo

Inland EmpirP.O. Box 902Chino Hills, C909.993.1740

R

re Utilities Agency20 CA 91708 0

RECYCLE

y

ED WATE

STARFO

CHINER GROUN

RT-UP POR SAN

Febru

NO BASINNDWATER

PERIODN SEVA

uary 8, 201

N R RECHA

D REPOAINE 5

12

9Ranch

ARGE PRO

ORT

Chino Basin Wate641 San Bernardin

ho Cucamonga, CA909.4

OGRAM

ermaster no Road A 91730 84.3888

Inland Empire Utilities Agency Chino Basin Watermaster P.O. Box 9020 9641 San Bernardino Road Chino Hills, CA 91708 Rancho Cucamonga, CA 91730 909.993.1740 909.484.3888

February 8, 2012 Regional Water Quality Control Board, Santa Ana Region Attention: Mr. Gary Stewart 3737 Main Street, Suite 500 Riverside, California 92501-3348 Subject: Transmittal of the Start-Up Period Report for San Sevaine 5 Chino Basin Recycled Water Groundwater Recharge Program Dear Mr. Stewart: The Inland Empire Utilities Agency (IEUA) and the Chino Basin Watermaster (CBWM) hereby submit the Start-Up Period Report for San Sevaine 5 for the Recycled Water Groundwater Recharge Program being implemented by IEUA and CBWM. This document is submitted pursuant to requirements in the following documents:

• California Regional Water Quality Control Board, Santa Ana Region, Order No. R8-2007-0039 Water Recycling Requirements for Inland Empire Utilities Agency and Chino Basin Watermaster, Chino Basin Recycled Water Groundwater Recharge Program, Phase I and Phase II Projects, June 29, 2007,

• California Regional Water Quality Control Board, Santa Ana Region, Monitoring and Reporting Program No. R8-2007-0039 for Inland Empire Utilities Agency and Chino Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects San Bernardino County,

• California Regional Water Quality Control Board, Santa Ana Region, Order No. R8-2009-0057, Amending Order No. R8-2007-0039, Water Recycling Requirements For Inland Empire Utilities Agency and Chino Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects, San Bernardino County, October 23, 2009, and

• IEUA and CBWM, 2010, Start-Up Protocol Plan for San Sevaine Basins (San Sevaine 5), May 27, 2010.

The following items highlight the Start-Up Period Report findings for San Sevaine 5:

• The start-up period for San Sevaine 5 was July 2010 through August 2011 and was extended beyond 180 days to allow for subsurface travel time estimation of storm water recharged during the record 2010/11 winter storm season.

• Infiltration rates for San Sevaine 5 were very low during the start-up period at 0.1 feet per day, but can be as high as 0.6 feet per day after periods of non-use and deeper water depth.

• Electrical conductivity (EC) is an effective tracer of recycled water and is useful for estimating travel times to 20-foot and shallower depths at San Sevaine 5. Recharged

Inland EmpirP.O. Box 902Chino Hills, C909.993.1740

refoin

• Raptr(aSth

• Sthrethchar

• SdemD

• SS20S

• Atiprdeeffo

• Fcoan

• T12Rth

If you ha

re Utilities Agency20 9641 CA 91709 0

ecycled wateoot, and 35-fon the properti

Recharge watepproximatelyravel time to approximatelS-1/1 ground

he well (approil-Aquifer T

he upper 20 fecommendedhat further rehange in sediround these dan Sevaine 5epth. The 1.

maximum alloDetermination

AT is effectievaine 5. Th0-foot depth AT. At 20 fe

An Alternativme to the selroposed Alteelivery pipelfficiencies (2or the benefitor the initial ontinue for Tnalyses that c

The Start-Up P20 months of

RWC limit. Ahe Annual Re

ave any ques

y

r was detectefoot lysimeteries of the deeer moved dowy 46 days to t20 feet incre

ly 300 days odwater was nroximately 39Treatment (Sfeet of sedimd for compliaduction in TOiment properdeeper lysim5 Basin achie82 mg/L 20-owable Recyn of maximumive at removihe average SAand shallow

feet deep, TNe Monitoringlected 20-fooernative Monine during ac

20-foot lysimts of SAT. year of mon

TOC, TN, andcannot be maPeriod Reporf recharge wi

All RWC Maeport for the

tions, please

ed at the 20-frs did not refeper sedimenwnward throthe 20-foot d

eased to 56 daof recharge). not detected d90 days). AT) was verent at San Se

ance measureOC may occurties betweeneters on its w

eved TOC remsample rollincled Water Cm RWC is asing total nitroAT removal er lysimeters

N was on averg Plan is propot compliancenitoring Plan ctive recharg

meter) for TOC

nitoring, montd EC with baade due to samrt includes anith recycled w

anagement PlRecycled Wa

e do not hesi

foot deep andflect rechargents. ough initially deep lysimeteays (approxim Arrival of S

during the sta

ry effective aevaine 5 and ment. Increaur with depth

n 20 and 25 feway to first grmoval efficieng average TContribution s follows: RWogen (TN) inefficiency fo

s were withinrage 0.8 mg/Lposed for Sane point that rincludes weee and the useC and TN, re

thly samplinackup samplimple volumen RWC Manwater to mainlans are updaater Groundw

itate to call u

d shallower lye water qualit

unsaturated er. With incrmately 100 d

San Sevaine 5art-up period

at removing tSAT removaased TOC remh beyond 20feet, San Sevaroundwater (ency of 78% TOC at the 20

(RWC) limitWC limit = 0n the upper 20or TN was 69n the TN comL. n Sevaine 5 dresults from rekly sampline of 78% andespectively, t

ng of the 20-fing of the 15-e limits at the

nagement Planntain compli

ated annuallywater Rechar

us.

Ranch

ysimeters. Tty due to inte

soil over a prease durationdays of recha5 recharge at

d through the

otal organic al efficiency moval with dfeet. Howevaine 5 rechar(about 200 fethrough SAT

0-foot lysimet of 27% at S

0.5 mg/L / TO0 feet of sedi9%. All TN vmpliance limi

due to the 56regular rechag from the re

d 69% SAT rto adjust the p

foot deep lysi-foot deep lye 20-foot deen to forecast ance with the

y and submittrge Program.

Chino Basin Wate San Bernardin

ho Cucamonga, CA909.4

The 25-foot, 3erpreted chan

period of n of recharge

arge) and 86 dt monitoring wlast sampling

carbon (TOCat this depth

depth indicatver, due to a rge water moeet deep). T by a 20-fooeter provides San Sevaine 5OC average.iment at San values from tit of 5 mg/L w

6 to 72-day trarge activity.ecycled wateremoval pipeline sam

imeter will ysimeter for ep lysimeter.the next

e proposed 2ted to CDPH .

ermaster no Road A 91730 84.3888

30-nges

e, days well g of

C) in are

tes

ves

ot for a

5.

the with

ravel The r

mple

27% in

Start-Up Period Report for San Sevaine 5 Table of Contents

i

Table of Contents

1. Introduction ...................................................................................................................... 1-1

1.1 Requirements of Order No. R8-2007-0039 .............................................................. 1-1

1.2 Organization of the Start-Up Period Report .............................................................. 1-2

2. Lysimeter and Well Installation ...................................................................................... 2-1

3. Recharge Operations ....................................................................................................... 3-1

3.1 Volume of Historical Diluent Water Recharged ....................................................... 3-1

3.2 Recharge Operations during the Start-Up Period ...................................................... 3-1

3.3 Estimated Infiltration Rates ....................................................................................... 3-2

4. Surface Water and Lysimeter Sampling Results .......................................................... 4-1

4.1 Surface Water, Lysimeter, and Monitoring Well Sampling Results ......................... 4-1

4.2 Recharge Travel Times .............................................................................................. 4-2

4.2.1 Lysimeter Monitoring ............................................................................................ 4-3

4.2.2 Well Monitoring..................................................................................................... 4-3

5. Soil-Aquifer Treatment Efficiency: TOC & TN Removal ............................................... 5-1

6. Start-Up Period ................................................................................................................. 6-1

6.1 Determination of the Start-Up Period ........................................................................ 6-1

6.2 Compliance Point Selection....................................................................................... 6-1

6.3 Alternative Monitoring Plan ...................................................................................... 6-2

6.4 Maximum RWC Determination ................................................................................ 6-2

7. RWC Management Plan ................................................................................................... 7-1

8. Initial Year Monitoring Plan ............................................................................................. 8-1

9. References ........................................................................................................................ 9-1

List of Appendices Appendix A - Lysimeter and Monitoring Well Construction Drawings


ii

LIST OF TABLES

3-1 San Sevaine Basins 1 Through 5: Historical Diluent Water Direct Recharge

3-2 San Sevaine 5: Daily Water Deliveries During the Start-Up Period

3-3 San Sevaine Basins 1 Though 5: Historical Monthly Water Deliveries and RWC

3-4 San Sevaine 5: Infiltration Rate Measurements

4-1 San Sevaine 5: Surface Water and Lysimeter Results - Electrical Conductivity

4-2 San Sevaine 5: Surface Water and Lysimeter Results - Total Organic Carbon

4-3 San Sevaine 5: Surface Water and Lysimeter Results - Nitrogen Speciation

4-4 San Sevaine 5: Surface Water and Lysimeter Results - Total Nitrogen

4-5 San Sevaine 5: Monitoring Well SS-1 Water Quality Results

5-1 San Sevaine 5: SAT Removal Efficiencies for TOC and TN

7-1 RWC Management Plan for San Sevaine Basins 1 Through 5


iii

LIST OF FIGURES

1-1 Chino Basin Recycled Water Groundwater Recharge Program Basin Locations

2-1 Location of Facilities at San Sevaine 5

4-1a San Sevaine 5 Lysimeters: Electrical Conductivity Time Series

4-1b San Sevaine 5 Monitoring Well SS-1/1: Electrical Conductivity Time Series

4-2a San Sevaine 5 Lysimeters: Total Organic Carbon Time Series

4-2b San Sevaine 5 Monitoring Well SS-1/1: Total Organic Carbon Time Series

4-3a San Sevaine 5 Lysimeters: Total Nitrogen Time Series

4-3b San Sevaine 5 Monitoring Well SS-1/1: Total Nitrogen Time Series

5-1 San Sevaine 5: Depth Profile of Average TOC and TN

7-1 San Sevaine 5: Recycled Water Management Plan

Start-Up Period Report for San Sevaine 5 Section 1 Introduction

1-1

1. Introduction

Inland Empire Utilities Agency (IEUA) and Chino Basin Watermaster (CBWM) are co-permit holders for the Chino Basin Recycled Water Groundwater Recharge Program. IEUA and CBWM maintain and operate the program’s recharge facilities together with Chino Basin Water Conservation District and San Bernardino County Flood Control District. The recharge program is an integral part of CBWM’s Optimum Basin Management Plan goals of enhancing water supply reliability and improving groundwater quality in the Chino Basin. These goals are to be met by increasing the recharge of storm water, imported water, and recycled water.

IEUA initiates groundwater recharge using recycled water at permitted recharge sites by following and reporting on a minimum 6-month long start-up period of recycled water delivery and intensive water quality testing. The locations of Recycled Water Groundwater Recharge Program basins including San Sevaine basins 1 through 5 are shown on Figure 1-1. The San Sevaine Basins were modified under the Chino Basin Facilities Improvement Project (CBFIP) to include telemetry of water levels and a hardened spill point in San Sevaine 5. The hydrogeologic background for the San Sevaine Basins is described in the Chino Basin Phase I Recycled Water Groundwater Recharge Project Title 22 Engineering Report (CH2MHill, 2003). While the entire San Sevaine basin site is permitted for recycled water recharge, only San Sevaine 5 is currently plumbed for the delivery of recycled water. An additional start-up period would be conducted should any of the upper cells be plumbed for recycled water delivery in the future.

The San Sevaine 5 Start-Up Period was conducted in accordance with the protocols approved by California Department of Public Health (CDPH) [formerly California Department of Health Services (CDHS)] and set forth in the Start-Up Protocol Plan for San Sevaine Basins (San Sevaine 5) (IEUA 2010). This report documents the testing results, the soil-aquifer treatment (SAT) efficiencies at San Sevaine 5 for the removal of total organic carbon (TOC) and total nitrogen (TN), and the subsequent determination of the maximum recycled water contribution (RWC) limit associated with the reduced TOC concentrations at a chosen compliance point (e.g. a lysimeter or a monitoring well).

1.1 Requirements of Order No. R8-2007-0039

The Chino Basin Recycled Water Groundwater Recharge Program is subject to the following requirements set forth by the Regional Water Quality Control Board Santa Ana Region:

• Order No. R8-2007-0039 Water Recycling Requirements for Inland Empire Utilities Agency and Chino Basin Watermaster, Chino Basin Recycled Water Groundwater Recharge Program, Phase I and Phase II Projects, June 29, 2007,

• Monitoring and Reporting Program No. R8-2007-0039 for Inland Empire Utilities Agency and Chino Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects, June 29, 2007, and

• California Regional Water Quality Control Board, Santa Ana Region, Order No. R8-2009-0057, Amending Order No. R8-2007-0039, Water Recycling Requirements for Inland Empire Utilities Agency and Chino

Start-Up Period Report for San Sevaine 5 Section 1 Introduction

1-2

Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects, San Bernardino County, October 23, 2009.

Recharge of recycled water at the San Sevaine Basin site was permitted by Order No. R8-2007-0039. Section F.4 of Order No. R8-2007-0039 describes the requirements for the Start-Up Period Report:

The Start-Up Period report shall include: site specific determinations of percolation rates, soil aquifer treatment efficiency and optimum depths and locations of lysimeters to obtain representative compliance samples of recycled water after soil aquifer treatment. The report shall specify the date that the Start-Up Period ended. The report shall make recommendations for final compliance lysimeter placement and the monitoring plan to be employed during the initial year of operation, the initial year maximum average RWC and corresponding TOC limit, and generalized method that will be used to track recharge water in the vadose zone. The analytical results from weekly lysimeter samples shall be evaluated and reported along with conclusions regarding soil aquifer treatment (SAT) performance. This report is subject to approval by the CDHS [sic, now CDPH] and the Regional Board Executive Officer. The report recommendations shall be implemented upon approval.

Order No. R8-2009-0057 amended R8-2007-0039 to extend the previously 60-month volume-based RWC compliance calculation to 120 months and to allow that RWC calculation to include groundwater underflow as diluent water.

1.2 Organization of the Start-Up Period Report

Section 2 of this report describes the installation of the lysimeters and monitoring well. Section 3 details the recharge operations during the start-up period. Sections 4 and 5 discuss the lysimeter sampling and monitoring results and the SAT removal efficiency for TOC and TN. Section 6 describes the determination of the start-up period and recommendation of the compliance point. Section 7 discusses the determination of the basin’s maximum RWC limit and a RWC Management Plan to ensure that the RWC limit is not exceeded in the future. Section 8 is a proposed water quality monitoring plan for the initial year after the start-up period, and Section 9 lists cited references.

Start-Up Period Report for San Sevaine 5 Section 2 Lysimeter Installation

2-1

2. Lysimeter and Well Installation

Figure 2-1 is a map of the San Sevaine Basin site showing all five cells comprising the recharge basin. Also shown on the figure are the locations of the San Sevaine 5 lysimeter cluster and the nested monitoring well used to collect water samples during the start-up period.

In May 2010, a cluster of seven lysimeters were installed in the southwest corner of the basin near the juncture of the toe of the northwest slope and the conservation berm. The ground elevation of the lysimeters is approximately 1392 feet above Mean Sea Level. The lysimeter cluster is comprised of individual lysimeters at depths of 5, 10, 15, 20, 25, 30, and 35 feet. The lysimeter construction drawings are included in Appendix A. The San Sevaine 5 lysimeter construction process is summarized in the Start-Up Protocol Plan for San Sevaine Basins (San Sevaine 5) (IEUA, 2010). Throughout the report text, tables, and figures, water samples from the lysimeters are referred to as SS5-xx, where xx equals the nominal depth of the porous tip of the lysimeter below ground surface (bgs). Depending on context, the surface water samples collected at each lysimeter are referred to as a 00-depth sample or surface water sample. These samples represent grab samples of surface water collected from the basin near the lysimeter installation. During the start-up period, surface water depth in San Sevaine 5 varied from about 2 to 6 feet.

Monitoring well SS-1 was constructed during November and December 2009. The well is located on the southwest end of San Sevaine 5 on the access road just above the outlet gate. The monitoring well consists of two casings which are named SS-1/1 for casing 1 (screened from 260 to 310 feet) and SS-1/2 for casing 2 (screened from 630 to 690 feet). The top of the well casings are both approximately 1396 feet above Mean Sea Level. Although originally intended as a single casing well, two casings were installed to help monitoring the more complex hydrogeology discovered at the time of drilling. SS-1/1 is a 4-inch diameter casing, is the shallower of the two casings, and was installed both to sample water recharged at the site and monitoring water levels of the shallower aquifer. Casing SS-1/2 is a 2-inch diameter casing, is the deeper of the two, and was installed only to monitor water levels in the deeper aquifer found at this location. The screened sections of these two well casings are separated by over 100 feet of clay aquitard interbedded with other sediments. The original well design was for a single casing for sampling, but due to encountered formations the second piezometer casing was added to collect additional long-term water level data.

Start-Up Period Report for San Sevaine 5 Section 3 Recharge Operations

3-1

3. Recharge Operations

3.1 Volume of Historical Diluent Water Recharged

Recharge in San Sevaine 5 was estimated from field observations, recorded water depths from storm water activities, and from periodic stream gauging of dry weather flows. Table 3-1 lists the historical diluent water direct recharge volumes at San Sevaine Basins 1 through 5 for July 2005 through December 2011. Diluent water is all water recharged that is not recycled water or imported water, but is locally originating water (dry weather and storm water flows).

Table 3-1 shows only water directly recharged in the basin and does not included groundwater underflow. Groundwater underflow recharges at another location and flows under the basin to comingle with direct recharge. Groundwater underflow as discussed in Section 7 will be used as a diluent water source when evaluating the percentage of recycled water recharge from the site.

San Sevaine Basin site was improved from its flood control function to include groundwater recharge as part of the CBFIP basin improvements. New infrastructure included water level sensors, hardened spill point in San Sevaine 5 conservation berm. The site also receives periodic maintenance to remove storm sediments which may inhibit recharge activities. Since 2005, the fiscal year diluent water recharge for San Sevaine Basins 1 through 5 ranged from 225 acre-feet (AF) (for a dry year with no imported water purchase) to 10,521 AF (for a wet year with imported water purchases).

Although not tabulated as in-basin recharge in Table 3-1, groundwater underflow will be credited as diluent water in the 120-month running average RWC calculation (discussed in Section 7). For San Sevaine Basins 1 through 5, groundwater underflow is estimated at approximately 1,667 AF per year (139 AF per month) using a previously approved methodology (NWRI, 2010). San Sevaine Basin groundwater underflow is also underflow to the Victoria Basin, which is located approximately 4,000 feet southwest and down gradient of San Sevaine 5. Underflow in this region will thus be divided between Victoria and San Sevaine Basins in their respective RWC calculations in proportion with their respective needs. Direct recharge of diluent and recycled water at these basins will not be shared.

3.2 Recharge Operations during the Start-Up Period

Water delivered to San Sevaine 5 during the start-up period included recycled water, local runoff and storm water. Local runoff and storm water enter the basin via local storm drains, Etiwanda Channel from the west and San Sevaine Creek from the northeast. Storm water recharge was estimated using measured increases in water depth correlated with the depth-to-volume relationship of the basin’s stage-storage curve. A correction for infiltration during storms was applied using the basin’s measured infiltration rates and the storm duration. Table 3-2 lists daily water deliveries to San Sevaine 5 (only) during the start-up period. Negative values in Table 3-2 indicate a volume drained from the basin. For San Sevaine Basins 1 through 5, Table 3-3 lists historical monthly deliveries and the 120-month running average of percent recycled water to total recharge volume, as will ultimately be required for the maximum RWC

Start-Up Period Report for San Sevaine 5 Section 3 Recharge Operations

limit compliance for the entire San Sevaine Basin site. While an RWC calculation is provided starting on the first month of RW recharge, 120 months of data may not be available until 10 years of recharge operations. Groundwater underflow is included as a diluent water source in the RWC calculations in Table 3-3 beginning October 2009 as this is the month the recharge permit was amended to allow such use (RWQCB, 2009).

3.3 Estimated Infiltration Rates

Infiltration rates of San Sevaine 5 were measured using water level data reported through level sensors installed at the basin. Table 3-4 contains these data and the calculated infiltration rates. For comparison Table 3-4 also contains rates for San Sevaine 1, 2, and 3. Rates in Table 3-4 are measured during periods without water inflow.

The rates for San Sevaine 5 range from 0.1 to 0.6 feet per day and drop off with the record 2010/11 storm season and with extended usage. Infiltration rates can vary by water depth and seasonal impacts. For instance, deeper surface water can contact higher infiltration rate soils not yet adversely impacted by fine-grained sediment introduced by storm water and can thereby have periodically higher rates. San Sevaine 5 infiltration rates are much lower than the other San Sevaine basins which typically range from 1 to 3 feet per day. As discussed in Section 4, San Sevaine 5 hydrogeology is influenced by a shallow change in sediment properties between 20 and 25 feet deep which may likely impact infiltration rates during extended use of the basin.

Start-Up Period Report for San Sevaine 5 Section 4 Surface Water and Lysimeter Sampling Results

4-1

4. Surface Water and Lysimeter Sampling Results

4.1 Surface Water, Lysimeter, and Monitoring Well Sampling Results

The monitoring schedule from the CDPH-approved Start-Up Protocol Plan for San Sevaine 5 Basin (IEUA, 2010) included weekly sampling for surface water and lysimeter water, and analyses for:

• Electrical Conductivity (EC), • TOC, • Nitrate as Nitrogen (NO3-N), Nitrite as Nitrogen (NO2-N), Ammonia as Nitrogen (NH3-N), and

Total Kjeldahl Nitrogen (TKN), and • TN, calculated as the sum of NO3-N, NO2-N and TKN.

Monitoring well SS-1/1 was also monitored quarterly for these same water quality parameters. The lysimeter and monitoring well water quality data are summarized in Tables 4-1 through 4-5. While time-series graphs and tabularized data are presented in this section, they are interpreted and discussed in Section 5 (Soil-Aquifer Treatment Efficiency) and Section 6 (Start-Up Period).

TN results that are non-detect (<0.6 mg/L) are graphed and averaged at half the detection limit. If not all nitrogen species results are non-detect and the sum of their concentrations is less than 0.6 mg/L and greater than 0.3 mg/L, then TN is reported as <0.6 mg/L but graphed and averaged with the summed value. If there is insufficient sample to analyze for TKN, then NH3-N is substituted for TKN into the calculation of TN. This is done as the other components of TKN (e.g. organic nitrogen and NH3-N) are typically removed during the wastewater treatment process. If following collection of the TOC sample there is insufficient sample to analyze for NO3-N, TKN, or NH3-N, then TN is not calculated.

Time-series graphs of EC from San Sevaine 5 lysimeters and monitoring well SS-1/1 are presented on Figure 4-1a and Figure 4-1b, respectively. Time-series graphs of TOC from San Sevaine 5 lysimeters and monitoring well SS-1/1 are presented on Figure 4-2a and Figure 4-2b, respectively. Time-series graphs of TN from San Sevaine 5 lysimeters and monitoring well SS-1/1 are presented on Figure 4-3a and Figure 4-3b, respectively. In the upper part of all of the time-series graphs, horizontal series denote periods when various sources of water were routed into San Sevaine 5. These bars do not indicate source water recharge at the other San Sevaine basins (1 through 4) as the chemistry of those water are not reflective of the lysimeters.

Changes in source waters recharged at San Sevaine 5 were readily detected at 5-, 10-, 15- and 20-foot deep lysimeters based on comparing measured EC values at the lysimeters with measured EC values of the source waters. However, the EC trends indicate the 25-, 30-, and 35-feet deep lysimeters are not influenced significantly by the recharged source waters. At the initiation of recycled water recharge at San Sevaine 5, water at all of the lysimeter depths had EC values of 1,900 to 3,200 μmhos/cm, several times that of the recycled water (700 μmhos/cm) recharged in the following weeks. Within 33 days of initiation of recycled water recharge, the EC of both the water in the basin and the water at the 20-foot and shallower lysimeters were similar. The EC of water at the deeper lysimeters did begin to noticeably decrease after 6 months of recycled water recharge, but had not reached the EC of the recharged recycled water


4-2

after more than one year of recycled water recharge. The data collected for the 25-, 30-, and 25-foot lysimeters is presented on the relevant time-series figures as lighter colored lines, but will not be discussed further in the start-up period report. The Chino Basin Watermaster Engineer (Mark Wildermuth) has indicated in several discussion that there is a geologic transition from younger (less consolidated) alluvial sediments to older (more consolidated) alluvial sediments at the San Sevaine Basin. Based on the lysimeter data and the low infiltration rates for San Sevaine 5, this transition may occur at a depth of between 20 and 25 feet at the lysimeter installations.

The EC of pre-test water measured in the San Sevaine 5 lysimeters was persistently higher (over 1,000 μmhos/cm) than the water recharged in the basin (Figure 4-1a). One possible explanation may be that an impurity in the backfill materials used in the lysimeter construction has leaching a low concentration of dissolved solids into the formation water. A similarly higher EC was measured at the Victoria Basin lysimeters, which were installed contemporaneously with the San Sevaine 5 lysimeters by the same contractor with the same design and materials. Another indication of a leaching source of EC into the sampled water is that EC increased when recharge activities are temporarily suspended.

Nevertheless, changes in source waters recharged at San Sevaine 5 are readily detectable at the 20-foot and shallower lysimeters based on EC variation trends. Unfortunately the anomalously higher pre-test EC and the indications of leaching make it impractical to precisely estimate percent recycled water at the lysimeters over time when EC is greater than the recycled water.

4.2 Recharge Travel Times

The travel time for recharge water to reach the various sample depths is critical to the evaluation of the start-up period data and development of future monitoring protocols. Surface water travel times to the lysimeters were evaluated to identify offset times for the pairing of surface and lysimeter data. Travel time data are also important for the development of monitoring plans such that the collected lysimeter or monitoring well samples can be referenced to a prior surface water sample. Travel times along recharge flow paths were estimated by comparison of EC time-series variations of surface water and of water at the lysimeter and monitoring well.

Exact matching of water parameter concentrations is not always possible due to many reasons, including but not limited to the following:

• Daily recharge volumes over the study period are not constant, resulting in variations in surface water depth and percent water saturation of underlying soils.

• Recharge waters blend with water already in the soil which can mute chemical changes from correlative changes in the surface water.

• Seasonal water quality changes (such as in EC) in background groundwater at monitoring wells can be more significant than changes in the vadose zone using the overlying lysimeters.

The initial arrival or indication of a parameter with increased depth can represent the quickest travel time, but the peak arrival may be delayed and be more suitable for purposes of sample comparison. While intrinsic parameters such as EC can be used to conservatively estimate travel


4-3

times, the parameters TOC and TN are not suitable tracers, because their concentrations change through SAT as they travel through the soil.

4.2.1 Lysimeter Monitoring Recharge travel times from the basin surface to the various depth lysimeters can typically be estimated by observation of delays in transition from lower EC diluent water to higher EC recycled water. The travel time estimates can vary throughout the start-up period depending on changes in basin operation, basin soil conditions, and sediment saturation. Evaluation of the lysimeter EC data shows that the 20-foot deep and shallower lysimeters respond to changes in source water EC as recharged in San Sevaine 5. Once saturated, water in the upper 20 feet of sediments would flow horizontally under a saturated flow regime as opposed to vertical percolation. Due to the shallow nature of the interpreted formational change between 20 and 25 feet of sediment depth, travel times to various depths vary widely depending on the recharge conditions. Tracking EC changes from the initial recycled water recharge (July 9, 2010) with initially unsaturated sediments indicates travel time to 20 feet as 25 to 30 days. Under these initial unsaturated conditions, travel to the 10 and 20 foot depths were similar. A second estimate made after 193 days of recharge (now with saturated near surface sediments), the tracking of EC changes originating from the resumption of recycled water recharge (on January 18, 2011) after a storm period indicates travel times of 8, 14, 42, and 56 days for the 5, 10, 15, and 20-foot lysimeters, respectively. A third estimate after 311 days of recharge (still with saturated near surface sediments), the tracking of EC changes originating from the resumption of recycled water recharge (on May 16, 2011) after a storm period indicates even longer travel times of 42, 52, and 79 days for the 5, 10, and 15-foot lysimeters, respectively. For this last event, travel time to the 20-foot lysimeter could not be estimated due to sample return issues, but is presumed to be greater than 86 days, based on relative differences between this and the prior estimate at shallower depths. The slower vertical travel time from surface to 20 feet deep are likely due to increased lateral flow of recharge water away from the site due groundwater mounding above the 25-foot depth.

4.2.2 Well Monitoring

Monitoring wells SS-1, located on the basin perimeter road southwest of San Sevaine 5 conservation berm, is sampled quarterly. The monitoring well consists of two casings which are named SS-1/1 for casing 1 (screened from 260 to 310 feet) and SS-1/2 for casing 2 (screened from 630 to 690 feet). Only the shallower, 4-inch diameter casing (SS-1/1) was used for sampling. Monitoring travel time to a monitoring well can often be characterized by changes in intrinsic water quality parameters of the recharge water, such as EC.

Figure 4-1b is a time-series graph of EC in SS-1/1, but also shows for comparison the EC of San Sevaine 5 surface water and of the 15- and 20-foot lysimeters. The EC of groundwater at monitoring well SS-1/1 prior to the start of recycled water recharge was 340 µmhos/cm. Recycled water delivered to San Sevaine 5 generally ranged from 650 to 850 µmhos/cm. Following initiation of recycled water recharge at San Sevaine 5 in July 2010 through August


4-4

2011, there has been no observable change in groundwater EC at these wells that would indicate recycled water recharge arrival at these locations.

Trending of groundwater TN and TOC at SS-1/1 also indicates no observable TOC and TN change that would indicate recycled water recharge arrival at the monitoring well. TOC and TN time-series trends for monitoring wells SS-1/1 are shown on Figure 4-2b and Figure 4-3b respectively. For comparison with the recharge water, both figures also show the data tends for San Sevaine 5 surface water and the 15- and 20-foot lysimeters.

Start-Up Period Report for San Sevaine 5 Section 5 Soil-Aquifer Treatment Efficiency: TOC & TN Removal

5-1

5. Soil-Aquifer Treatment Efficiency: TOC & TN Removal

SAT is a natural biodegradation process occurring beneath a recharge basin as recharge water flows through shallow soil where TOC and TN concentrations are reduced. As allowed in Order R8-2007-0039, demonstrated SAT reduction of TOC concentration can be a significant influence on the RWC limit based on the formula:

averageaverage RWC

LmgTOC

/5.0=

Figure 5-1 is a graph of the average TOC and TN concentrations as a function of increasing depth at San Sevaine 5. Data for this graph come from Table 4-2 and Table 4-4. The surface water grab sample is represented by the 0-foot depth, while the other depths correspond to the lysimeter depths, in feet. The TOC values plotted correspond to the data after August 18, 2010 when recycled water was first detected at the 20-foot lysimeter through August 30, 2011 the last day of the start-up period. TOC values during this period are generally between 2.0 and 3.0 mg/L. TN values during this period were generally less than 2.0 mg/L and were consistently less than the compliance limit of 5 mg/L. Figure 5-1 shows a noticeable decrease in both average TOC and TN concentration with increased depth and suggests that SAT reduction continues to at least 20 feet bgs at the basin. Below a depth of 20 feet at the lysimeter location, a change in sediment properties is interpreted to interfere with the vertical flow of recharge water, yet vertical flow likely continues to the regional groundwater table away from the lysimeter location. Depth to first groundwater at San Sevaine 5 during the start-up period was approximately 200 feet bgs.

Figure 4-2a and Figure 4-3a are time-series graphs of TOC and TN, respectively, from the San Sevaine 5 surface water and lysimeter samples. Data for these figures are found in Table 4-2 and 4-4, respectively. In the upper part of these time-series graphs are horizontal bars denote periods when various sources of water were diverted into San Sevaine 5 (excludes water in San Sevaine 1 through 4). Note that at San Sevaine 5, SAT removal of TOC and TN continues with depth to 20 feet and over time to generate fairly consistent and lower concentrations despite higher and variable TOC and TN concentration in the surface water.

SAT removal efficiencies for TOC and TN were estimated using both the 15-foot and 20-foot lysimeters. For compliance monitoring, the 20-foot lysimeter would likely be a preferred depth than the 15-foot depth due to increased removals with depth. However, the 20-foot lysimeter developed sample return limitations late in the start-up period. Thus a comparison with the more functional 15-foot depth is warranted.

SAT removal efficiencies were estimated for San Sevaine 5 without regard to the percent recycled water at the lysimeters because percent recycled water (less than 100%) could not be precisely estimated using the available EC data (see section 4.1). However, past startup period reports for IEUA recharge facilities have shown that average TOC and TN removal efficiencies are as high with a blend of water sources (imported, storm, recycled) as they are when recharge is with predominately recycled water. The long travel times (between 56 and 86 days with greater than 6 months of recharge) to the 20-foot depth and the variable nature of the surface

Start-Up Period Report for San Sevaine 5 Section 5 Soil-Aquifer Treatment Efficiency: TOC & TN Removal

5-2

water EC make pairing and comparisons of individual data points inappropriate for estimating SAT removal efficiencies. Instead, the average TOC and TN values from the lysimeters were used for the start-up period. Corresponding average surface water TOC and TN values were used for comparison, but with the data range offset backwards 56 and 86 days, respectively, for the travel times to the 15-foot and 20-foot lysimeters. Table 5-1 lists 1) the key recharge events used to track travel time to the 15-foot and 20-foot lysimeters, 2) the start-up period average, 3) the 20-week average TOC and TN values, the 20-sample average TOC, and the respective average SAT removal efficiencies.

Due to the lack of sufficient sample volume for analysis from the 20-foot lysimeter that began late in the start-up period, both a 20-week average TOC and a 20-sample average TOC were calculated from the end of the start-up period. The 20-week average TOC has less than 20 samples. As shown in Table 5-1, the SAT removal efficiencies for TOC after first arrival of recycled water at the 20-foot lysimeter through the end of the start-up period averaged 63% and 68% for the 15-foot and 20-foot lysimeters, respectively. The 20-week sample average SAT removal efficiencies for TOC were 72% and 76% and the 20-sample running average SAT removal efficiency for TOC was 76% and 78% for the 15-foot and 20-foot lysimeters, respectively. The 20-sample TOC average is 1.82 mg/L at the 20-foot lysimeter.

Figure 4-3a is a time-series graph of TN from San Sevaine 5 surface water and lysimeter samples. Data for this figure are found in Table 4-4. TN concentrations generally decrease with depth as recycled water recharge progresses. While TN concentration reduction through SAT does not increase the volume of recycled water that can be recharged under Order R8-2007-0039, it does assist in consistently meeting the TN compliance limit of 5 mg/L. During the start-up period, TN of the surface water was a maximum of 7.0 mg/L, a minimum of nondetect (<0.6 mg/L), and an average of 2.9 mg/L. Only five of the weekly surface water TN samples exceeded the 5 mg/L permit limit prior to SAT. All 15-foot and 20-foot lysimeters TN samples were less than the limit of 5 mg/L. The average TN at the 15-foot and 20-foot deep lysimeters following the arrival of recycled water at 20 feet was 0.6 and 1.4 mg/L, respectively. As shown in the bottom of Table 5-1, the 20-week running average SAT removal efficiencies for TN at the 15-foot and 20-foot lysimeters were 87% and 69%, respectively, while the 20-sample running average SAT removal efficiencies for TN at the 15-foot and 20-foot lysimeters were 88% and 69%, respectively. The 20-sample TN average is 0.85 mg/L at the 20-foot lysimeter.

Start-Up Period Report for San Sevaine 5 Section 6 Start-Up Period

6-1

6. Start-Up Period

6.1 Determination of the Start-Up Period

Order R8-2007-0039 establishes a start-up period for each recharge basin in the Chino Basin Recycled Water Groundwater Recharge Program (Finding 11, page 4):

. . . a Start-Up Period will be used at the outset of recycled water recharge operations. The purposes of each Start-Up Period are to establish site characteristics, including percolation rates, the physical characteristics of the vadose zone and soil aquifer treatment efficiency, and to establish a sampling regime, based on these characteristics, that is representative of recycled water following soil aquifer treatment. The length of the Start-Up Period at each basin will be contingent on site characteristics, including percolation rates and recycled water transit time in the subsurface. The Start-up Period shall last up to 180 days following commencement of recharge of recycled water to each basin, except if recharge of recycled water at that basin is significantly interrupted, for example due to storm event(s). . . . This Order requires IEUA to submit for CDHS [sic, now CDPH] and Regional Board approval a proposed Start-Up Period protocol at least two weeks prior to beginning each Start-Up Period. A Start–Up Period report will be prepared at the close of each Start-Up Period and will include recommendations for the optimum depths and locations for placement of lysimeters that will be used to measure compliance, and for a compliance-monitoring program. The report will also include recommendations for the maximum running monthly average Recycled Water Contribution and maximum running average Total Organic Carbon (TOC) limit for the initial year of recharge operations following the Start-Up Period.

The start-up period for each basin will be long enough to demonstrate effective TOC removal. As long as TOC concentrations continue to decline over time, the basin is still deemed to be in the start-up period, up to 180 days unless interrupted.

The recycled water recharge start-up period for San Sevaine 5 began on July 9, 2010 and ended August 30, 2011. During the initial 180 days (through January 5, 2011), the storm season rains began on October 25, 2010 and record rains continued through December 2010. While the storms disrupted the recharge of recycled water, they provided good opportunities (difference in EC) to evaluate travel times to the various lysimeter depths. Diluent water was not available prior to the start-up period, which would have allowed such estimates at the beginning of the start-up period. Following discussion with the CDPH, the start-up period was extended through the storm season to allow sufficient time to evaluate resumed recycled water recharge reaching the lysimeters. The start-up period was thus allowed to continue and ended August 30, 2011.

6.2 Compliance Point Selection

As demonstrated by correlating trends in EC (Figure 4-1a), the lysimeters 20-foot deep and shallower all received water representative of recharged water and fluctuated following changes in recharge water EC. Below 20 feet, there appears to be a geologic change in sediment properties that limited recharge to the 35-foot depths. Recharge water travel time through the 20-foot depth does increase with depth and also increases with recharge duration. At the 20-foot depth, the lysimeter samples are a blend represented by a few weeks of recharge rather than a distinct recharge volume delivered over days. As discussed previously in Section 5, SAT is quite effective at San Sevaine 5 and reduction of TOC generally increases with depth to 20 feet. From the data trends, the 20-foot lysimeter is the preferred for compliance depth. However towards the end of the start-up period, this lysimeter depth began to experience limited water sample


6-2

volume during collect. Due in part to the limitation at the 20-foot lysimeter, an alternative monitoring plan is proposed with an alternative compliance (non-lysimeter) sampling point.

6.3 Alternative Monitoring Plan

Section B.6 of Order R8-2007-00039 allows either lysimeter monitoring or an “alternative-monitoring plan” be used to demonstrate both SAT performance and compliance with requirements of the order. The compliance point may be any point prior to groundwater that is predominately recycled water. Order R8-2007-0039 states in Section B6:

. . . An alternative-monitoring plan may be approved upon submission of sampling results that demonstrate that an equal level of public health protection is achieved. (See also Provision G.8 and G.9.) Upon development of a soil-aquifer treatment factor using recharge demonstration studies, lysimeter based compliance monitoring may be replaced with recycled water measurements leaving the treatment plant and the application of the treatment factor with prior approval by the CDHS[sic] and the Regional Board Executive Officer.

An alternate monitoring plan at San Sevaine 5 is needed, in part, due to the 56 to 86-day travel time between the delivery of water to the basin and percolation to the 20-foot lysimeter. IEUA and CBWM therefore propose an alternative sampling plan for monitoring recycled water recharge at San Sevaine 5. As discussed in Section 5, the SAT is quite effective to a depth of 20 feet and likely continues away from the basin as recharge water migrates downward to groundwater at approximately 200 feet below the San Sevaine 5 site. For the alternative monitoring plan, a longer sampling interval than the typical weekly frequency is proposed due to the long travel time to 20 feet. As an alternate monitoring plan, it is recommended that weekly pipeline samples be collected during recycled water recharge at San Sevaine 5 and apply the SAT removal efficiency conversions for both TOC and TN (78% and 69% respectively) to account for SAT benefits.

As described in Section 8 Initial year Monitoring Plan, it is proposed that one year of monthly samples be collected from the 35-foot lysimeter when recycled water has been recharged at San Sevaine 5 in the past three months. The monthly sampling will occur approximately within one week of the 15th of each month.

6.4 Maximum RWC Determination

The maximum RWC is determined as specified within Order R8-2007-0039. Finding 12 of the Order states:

This Order does not establish maximum average recycled water contributions (RWC) at each basin, but requires the users to determine the maximum average RWC through the Start-Up Period for each recharge basin. The determined RWC must be approved by CDHS [sic, now CDPH] and the Regional Board.


6-3

Recycled Water Quality Specification Section A.10 states,

At each recharge basin, the monthly average TOC concentration of the recycled water prior to reaching the regional groundwater table shall not exceed the average TOC value calculated from the following formula:

TOCaverage = 0.5 mg/L ÷ RWCaverage

Section B.6 of Order R8-2007-0039 states:

Compliance with average TOC concentration limits specified in Recycled Water Quality Specifications A.11., above, shall be determined based on a lysimeter-based monitoring program performed at each individual recharge basin and allowing for recycled water percolation to the lysimeters to demonstrate soil aquifer treatment efficiency, unless recycled water TOC compliance can be demonstrated prior to recharge. Compliance shall be based on the running average of the most recent 20 lysimeter sample test results representative of recycled water samples.

The 20-sample running average TOC concentrations for the 20-foot lysimeter was calculated with the available sample data from the end of the start-up period (pre-August 30, 2011). As shown in Table 5-1, the 20-sample running average TOC concentration is 1.82 mg/L. The maximum RWC limit is thus calculated as 27% for San Sevaine 5. California Draft Groundwater Recharge Regulations and Order R8-2007-0039 limit maximum RWC to 50% for recycled water produced by tertiary treatment that is subsequently used for recharge by surface spreading. Should recycled water be made available to other San Sevaine basins, the performance of other San Sevaine basins would need to be evaluated and a new combined RWC determined.

Start-Up Period Report for San Sevaine 5 Section 7 RWC Management Plan

7-1

7. RWC Management Plan

RWC management is needed to keep a basin’s volume-based RWC within the maximum RWC limit determined by the 20-sample running average TOC. A basin’s volume-based RWC is determined by a 120-month running average ratio of recycled water volume to total recharge volume. Total recharge volume is the combined recharge volume from all sources including storm water, local runoff, groundwater underflow, imported water, and recycled water. Per Order R8-2009-0057, during the start-up period and up to 120-months after initiation of recycled water recharge, the volume-based RWC may exceed the maximum RWC limit, but must be within the limit by month 120.

Order R8-2009-0057, Section F.20

The Discharger shall submit a RWC Management Plan to the CDPH and the Regional Board that includes estimates of future average RWCs based on anticipated recharge operations over the first 120 months of recycled water recharge at each recharge site. The RWC Management Plan shall be submitted with the Start-Up Period Report and updated with IEUA's annual report to the Regional Board during the first 120-months and shall clearly identify the plan to achieve compliance with the maximum recycled water contribution by the 120th month at each recharge site. IEUA shall update the basin-specific RWC plans annually to reflect the estimated diluent water and recycled water contributions for the upcoming year. For the purpose of the diluent water projections, implementation of a weighted averaging should be considered when it is known that imported water supplies will not be available for purposes of recharging the aquifer. The underflow of the Chino Basin aquifer may be used as a source of diluent water. CDPH may consider crediting a fraction of the flow as diluent water, which would be dependent on the accuracy of the method used to measure the flow, its distribution, and the ability to meet the other diluent water criteria in the draft regulation.

An RWC Management Plan is developed for a recharge site by preparing a history of past recharge and then determining future recharge that will keep the volume-based RWC within the maximum RWC limit. Future recharge must be estimated. Future diluent water is estimated based on past availability of the various sources of diluent water and is expressed as monthly averages for the recharge site’s historical recharge. Recycled water recharge is then added to the plan at regular intervals to keep the RWC in compliance. The RWC generally has five distinct time periods: 1) Historical Diluent, 2) Start-Up Period, 3) Short-Term Compliance, 4) Start-Up Period Roll Off, and 5) Long-Term Stability.

Historical Diluent Recharge is that period of diluent water recharge prior to initiation of recharge using recycled water. Start-Up Period Recharge is the approximately 6 months of predominately recycled water recharge during the start-up period when a rapid rise in the volume-based RWC may occur. Short-Term Compliance (Interval 3) is the period when the volume-based RWC is brought to within the RWC compliance limit by month 120. Start-Up Period Roll Off (Interval 4) is an approximately 6-month long period when the recharge for the start-up period drops off from the running-average RWC and is characterized by a potentially rapid decrease in the volume-based RWC. Long-Term Stability (Interval 5) is the period after the first 120 months of recharge using recycled water when a long-term average diluent water history is available and recycled water deliveries can be regularly scheduled to maintain RWC limit compliance. Intervals 3, 4, and 5 had the potential for more rapid changes in RWC until the 2009 permit amendment (RWQCB, 2009) lessened that potential by allowing underflow as diluent water and a 120-month RWC calculation.

Start-Up Period Report for San Sevaine 5 Section 7 RWC Management Plan

7-2

The initial RWC Management Plan for San Sevaine Basins 1 through 5 is presented in Table 7-1 and graphed on Figure 7-1. The first 60 months of historical data are shown on Figure 7-1. Actual data are shown as dark colored solid lines and symbols while the following 120 months of planned deliveries are shown as solid lines and symbols of a similar, yet lighter color. While an RWC calculation is provided starting on the first month of RW recharge, 120 months of data may not be available until 10 years of recharge operations.

The San Sevaine Basins RWC Management Plan will be updated with each Annual Report of the Recycled Water Groundwater Recharge Program to show current actual recharge and revised planned deliveries. As of December 2011, the volume ratio of recycled water to all recharge (volume-based RWC) was 2% and is less than the proposed 27% maximum RWC for San Sevaine Basins 1 through 5. Should recycled water infrastructure be constructed and deliveries made to any of the other four San Sevaine basins, a modified RWC would be evaluated. The RWC Management Plan is conservative with respect to planned recharge of imported water, stormwater and recycled water sources. Due to the unpredictability of imported water availability, none is forecast for planned recharge, but will be listed as actual recharge once it occurs. Forecast stormwater and dry weather recharge are based on historical average monthly recharge since the inception of the recharge program in 2005. Recycled water delivery is then forecast up to the basin’s recharge capacity and then lowered should the forecast RWC exceed the RWC limit with higher conditions. With these assumptions, the forecast actual RWC (recharge volume based) will be conservatively high until actual source water recharge occurs.

The San Sevaine Basins RWC Management Plan incorporates groundwater underflow as diluent water. Underflow was first used in October 2009 when the recharge permit was amended to allow its use. The groundwater underflow of San Sevaine Basins site is also the underflow for the down gradient Victoria Basin. There are no production wells in between these two sites that would remove underflow from reaching the more downgradient site. An NWRI expert panel found IEUA’s method of estimating underflow (a Darcian calculation) to be reasonable (NWRI, 2010). IEUA estimated underflow for both sites to be of 3,335 AF per year (278 AF/month). Prior to this Start-Up Report, the groundwater underflow common to Victoria and San Sevaine Basins was divided evenly between the two sites for tracking each basin’s RWC in the 2010 Annual Report for the Chino Basin Recycled Water Groundwater Recharge Program (IEUA and CBWM, 2010). Even division of groundwater underflow provided a 139 AF/month credit to each site. However, the division of groundwater underflow credit following the 2010 Annual Report is 105 AF/month for Victoria Basin and 173 AF/month for San Sevaine Basins. This division allows the most recycled water recharge using each site’s recharge capacities, recharge history, and their proposed maximum RWC limits. With future annual reports, the planned groundwater underflow credit will forecast this 105 and 173 AF/month division unless an imbalance in diluent water for RWC compliance is predicted based on actual prior recharge at either the San Sevaine or Victoria Basins.

Start-Up Period Report for San Sevaine 5 Section 8 Initial Year Monitoring Plan

8-1

8. Initial Year Monitoring Plan

The start-up period reporting requirements include an initial year monitoring plan. As discussed in the prior sections and as shown in the tables and graphs included in this report, recycled water TN compliance criteria are met consistently at all lysimeters and TOC is reduced 78% through SAT to a 20-foot depth. Due to these excellent results and data trends from the lysimeter sampling, it is recommended that the initial year monitoring plan consist of monthly sampling of TOC, TN, and EC from the 20-foot lysimeter. However, due to sample volume limitation of the 20-foot lysimeter, it is also recommended that the 15-foot lysimeter also be sampled. Initial year monitoring will also include weekly pipeline sampling during recycled water delivery to San Sevaine 5. Following confirmation of SAT performance during the initial year of monitoring, it is recommended that the monthly lysimeter monitoring be discontinued with continued monitoring of the recycled water from the delivery pipeline. Pipeline monitoring would occur during active delivery of recycled water to San Sevaine 5 and compliance during the initial year will be determined by applying the applicable SAT removal efficiencies from the 20-foot lysimeter to both TOC and TN results to account for the recharge benefits of SAT.

The SAT removal efficiency used in the alternative monitoring plan are consistent with the existing alternative monitoring plans for Turner, Ely Basins, Victoria, 8th Street, Brooks, and RP3 Basins, wherein SAT removal efficiencies are applied to pipeline samples based on SAT removal efficiency for removal of TOC and TN calculated during their respective start-up periods. The initial year of operation is defined herein to be the 365 days beginning with the recycled water recharge following submission of the Start-Up Period Report. The future pipeline sampling location will be the sampling port on the recycled water pipeline turnout at the GenOn (formerly RRI Energy and formerly Reliant Energy) immediately north of IEUA’s Regional Plant No. 4 (RP-4) in Rancho Cucamonga. The GenOn sampling point has been used for quarterly and annual sampling for the past several years, and is a common sampling location for other IEAU recharge basin’s alternate monitoring plans. The delivery pipeline at the GenOn sample location generally has daily recycled water flow and typically contains a blend of recycled water from both IEUA’s Regional Plant No. 1 and Regional Plant No. 4.

Start-Up Period Report for San Sevaine 5 Section 9 References

9-1

9. References California Regional Water Quality Control Board, Santa Ana Region. 2005. Order No. R8-

2005-0033, Water Recycling Requirements for Inland Empire Utilities Agency and Chino Basin Watermaster, Phase 1 Chino Basin Recycled Water Groundwater Recharge Project, San Bernardino County, April 15, 2005.

California Regional Water Quality Control Board, Santa Ana Region, 2007a, Order No. R8-2007-0039, Water Recycling Requirements for Inland Empire Utilities Agency and Chino Basin Watermaster, Chino Basin Recycled Water Groundwater Recharge Program, Phase I and Phase II Projects, June 29, 2007.

California Regional Water Quality Control Board, Santa Ana Region, 2007b, Monitoring and Reporting Program No. R8-2007-0039 for Inland Empire Utilities Agency and Chino Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects San Bernardino County.

California Regional Water Quality Control Board, Santa Ana Region, 2009, Order No. R8-2009-0057, Amending Order No. R8-2007-0039, Water Recycling Requirements for Inland Empire Utilities Agency and Chino Basin Watermaster Chino Basin Recycled Water Groundwater Recharge Program Phase I and Phase II Projects, San Bernardino County, October 23, 2009.

CH2MHill, 2003, Phase I Chino Basin Recycled Water Groundwater Recharge Project Title 22 Engineering Report, November 2003.

IEUA, 2010, Start-Up Protocol Plan for San Sevaine Basins (San Sevaine 5), May 27, 2010. IEUA and CBWM, 2010, Chino Basin Recycled Water Groundwater Recharge Program, 2009 Annual

Report, May 1, 2010.

National Water Resources Institute, 2010, Final Report of the February 8-9, 2010, Meeting of the Independent Advisory Panel, for the Inland Empire Utilities Agency’s Groundwater Recharge Permit Amendment, April 14, 2010.

Wildermuth Environmental, Inc., 1999, Chino Basin Optimum Basin Management Program, Phase 1 Report, Prepared for the Chino Basin Watermaster, 1999.

TABLES

Fiscal Year JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL

2005/06 469 213 558 575 1,142 986 968 1,124 964 1,187 1,386 949 10,521

2006/07 15 1,030 1,006 1,011 565 1,019 936 342 5 3 31 30 5,994

2007/08 0 0 2 6 37 75 553 29 0 0 47 0 749

2008/09 0 0 0 0 8 86 16 107 8 0 0 0 225

2009/10 0 0 0 56 21 334 290 223 16 53 0 0 993

2010/11 0 0 139 234 220 722 152 282 204 139 144 139 2,375

2011/12 0 0 0 39 32 20

Notes:1) Table 3‐1 does not list the groundwater underflow volume credited for diluent water.

2) Table 7‐1 contains a breakdown of diluent water recharge including storm water, imported water, and groundwater underflow.

Table 3‐1San Sevaine Basins 1 Through 5

Historical Diluent Water Direct Recharge(acre‐feet)

Table 3-2San Sevaine 5

Daily Water Deliveries During the Start-Up Period

Diluent Water (AF) 1, 2 Recycled WaterDate

07/01/10 0.0 0.0 0.0 0.007/02/10 0.0 0.0 0.0 0.007/03/10 0.0 0.0 0.0 0.007/04/10 0.0 0.0 0.0 0.007/05/10 0.0 0.0 0.0 0.007/06/10 0.0 0.0 0.0 0.007/07/10 0.0 0.0 0.0 0.007/08/10 0.0 0.0 0.0 0.007/09/10 0.0 0.0 0.0 1.107/10/10 0.0 0.0 0.0 0.007/11/10 0.0 0.0 0.0 0.007/12/10 0.0 0.0 0.0 0.707/13/10 0.0 0.0 0.0 1.207/14/10 0.0 0.0 0.0 1.107/15/10 0.0 0.0 0.0 1.207/16/10 0.0 0.0 0.0 0.207/17/10 0.0 0.0 0.0 0.007/18/10 0.0 0.0 0.0 0.007/19/10 0.0 0.0 0.0 1.807/20/10 0.0 0.0 0.0 0.807/21/10 0.0 0.0 0.0 1.607/22/10 0.0 0.0 0.0 0.907/23/10 0.0 0.0 0.0 2.707/24/10 0.0 0.0 0.0 0.007/25/10 0.0 0.0 0.0 0.007/26/10 0.0 0.0 0.0 7.907/27/10 0.0 0.0 0.0 8.407/28/10 0.0 0.0 0.0 10.707/29/10 0.0 0.0 0.0 5.407/30/10 0.0 0.0 0.0 4.107/31/10 0.0 0.0 0.0 0.008/01/10 0.0 0.0 0.0 0.008/02/10 0.0 0.0 0.0 5.408/03/10 0.0 0.0 0.0 0.408/04/10 0.0 0.0 0.0 0.008/05/10 0.0 0.0 0.0 0.508/06/10 0.0 0.0 0.0 4.008/07/10 0.0 0.0 0.0 0.008/08/10 0.0 0.0 0.0 0.008/09/10 0.0 0.0 0.0 4.508/10/10 0.0 0.0 0.0 0.008/11/10 0.0 0.0 0.0 0.008/12/10 0.0 0.0 0.0 0.308/13/10 0.0 0.0 0.0 3.908/14/10 0.0 0.0 0.0 0.008/15/10 0.0 0.0 0.0 0.008/16/10 0.0 0.0 0.0 0.108/17/10 0.0 0.0 0.0 0.008/18/10 0.0 0.0 0.0 2.908/19/10 0.0 0.0 0.0 4.408/20/10 0.0 0.0 0.0 0.008/21/10 0.0 0.0 0.0 0.008/22/10 0.0 0.0 0.0 0.008/23/10 0.0 0.0 0.0 0.008/24/10 0.0 0.0 0.0 0.008/25/10 0.0 0.0 0.0 6.808/26/10 0.0 0.0 0.0 0.008/27/10 0.0 0.0 0.0 4.708/28/10 0.0 0.0 0.0 0.008/29/10 0.0 0.0 0.0 0.008/30/10 0.0 0.0 0.0 2.008/31/10 0.0 0.0 0.0 4.009/01/10 0.0 0.0 0.0 0.009/02/10 0.0 0.0 0.0 0.009/03/10 0.0 0.0 0.0 10.109/04/10 0.0 0.0 0.0 0.009/05/10 0.0 0.0 0.0 0.009/06/10 0.0 0.0 0.0 0.009/07/10 0.0 0.0 0.0 0.009/08/10 0.0 0.0 0.0 0.009/09/10 0.0 0.0 0.0 7.609/10/10 0.0 0.0 0.0 0.009/11/10 0.0 0.0 0.0 0.009/12/10 0.0 0.0 0.0 0.009/13/10 0.0 0.0 0.0 4.109/14/10 0.0 0.0 0.0 0.009/15/10 0.0 0.0 0.0 0.0

Import Local Total (AF) 2

Page 1 of 6

(CONTINUED)Table 3-2

San Sevaine 5Daily Water Deliveries During the Start-Up Period

Diluent Water (AF) 1, 2 Recycled WaterDate Import Local Total (AF) 2

09/16/10 0.0 0.0 0.0 5.909/17/10 0.0 0.0 0.0 0.009/18/10 0.0 0.0 0.0 0.009/19/10 0.0 0.0 0.0 0.009/20/10 0.0 0.0 0.0 5.009/21/10 0.0 0.0 0.0 0.009/22/10 0.0 0.0 0.0 0.009/23/10 0.0 0.0 0.0 0.009/24/10 0.0 0.0 0.0 0.009/25/10 0.0 0.0 0.0 0.009/26/10 0.0 0.0 0.0 0.009/27/10 0.0 0.0 0.0 0.009/28/10 0.0 0.0 0.0 0.009/29/10 0.0 0.0 0.0 0.209/30/10 0.0 0.0 0.0 9.110/01/10 0.0 0.0 0.0 4.010/02/10 0.0 0.0 0.0 5.610/03/10 0.0 0.0 0.0 5.710/04/10 0.0 0.0 0.0 5.510/05/10 0.0 0.0 0.0 4.610/06/10 0.0 0.0 0.0 2.610/07/10 0.0 0.0 0.0 0.610/08/10 0.0 0.0 0.0 4.510/09/10 0.0 0.0 0.0 4.410/10/10 0.0 0.0 0.0 4.510/11/10 0.0 0.0 0.0 4.610/12/10 0.0 0.0 0.0 4.810/13/10 0.0 0.0 0.0 3.110/14/10 0.0 0.0 0.0 3.810/15/10 0.0 0.0 0.0 4.310/16/10 0.0 0.0 0.0 4.310/17/10 0.0 0.0 0.0 3.610/18/10 0.0 0.0 0.0 2.210/19/10 0.0 0.0 0.0 0.010/20/10 0.0 0.0 0.0 0.010/21/10 0.0 0.0 0.0 0.010/22/10 0.0 0.0 0.0 0.010/23/10 0.0 0.0 0.0 0.010/24/10 0.0 0.0 0.0 0.010/25/10 0.0 7.7 7.7 0.010/26/10 0.0 0.0 0.0 0.010/27/10 0.0 0.0 0.0 0.010/28/10 0.0 0.0 0.0 0.010/29/10 0.0 0.0 0.0 0.010/30/10 0.0 1.2 1.2 0.010/31/10 0.0 0.0 0.0 0.011/01/10 0.0 0.0 0.0 0.011/02/10 0.0 0.0 0.0 0.011/03/10 0.0 0.0 0.0 0.011/04/10 0.0 0.0 0.0 0.011/05/10 0.0 0.0 0.0 0.011/06/10 0.0 0.0 0.0 0.011/07/10 0.0 0.0 0.0 0.011/08/10 0.0 0.0 0.0 0.011/09/10 0.0 0.0 0.0 0.011/10/10 0.0 0.0 0.0 0.011/11/10 0.0 0.0 0.0 0.011/12/10 0.0 0.0 0.0 0.011/13/10 0.0 0.0 0.0 0.011/14/10 0.0 0.0 0.0 0.011/15/10 0.0 0.0 0.0 0.011/16/10 0.0 0.0 0.0 2.711/17/10 0.0 0.0 0.0 6.011/18/10 0.0 0.0 0.0 3.911/19/10 0.0 0.0 0.0 0.011/20/10 0.0 16.8 16.8 0.011/21/10 0.0 4.3 4.3 0.011/22/10 0.0 0.0 0.0 0.011/23/10 0.0 0.0 0.0 0.011/24/10 0.0 2.4 2.4 0.011/25/10 0.0 0.0 0.0 0.011/26/10 0.0 0.0 0.0 0.011/27/10 0.0 0.0 0.0 0.011/28/10 0.0 0.0 0.0 0.011/29/10 0.0 0.0 0.0 0.011/30/10 0.0 -5.6 -5.6 0.0

Page 2 of 6




12/01/10 0.0 -14.9 -14.9 0.012/02/10 0.0 -13.4 -13.4 2.412/03/10 0.0 0.0 0.0 2.612/04/10 0.0 0.0 0.0 2.712/05/10 0.0 6.3 6.3 1.612/06/10 0.0 0.0 0.0 0.012/07/10 0.0 0.0 0.0 2.012/08/10 0.0 0.0 0.0 3.712/09/10 0.0 0.0 0.0 2.012/10/10 0.0 0.0 0.0 3.612/11/10 0.0 0.0 0.0 3.712/12/10 0.0 0.0 0.0 4.712/13/10 0.0 0.0 0.0 2.612/14/10 0.0 0.0 0.0 0.012/15/10 0.0 0.0 0.0 0.012/16/10 0.0 34.5 34.5 0.012/17/10 0.0 33.4 33.4 0.012/18/10 0.0 30.3 30.3 0.012/19/10 0.0 36.0 36.0 0.012/20/10 0.0 9.3 9.3 0.012/21/10 0.0 9.3 9.3 0.012/22/10 0.0 19.0 19.0 0.012/23/10 0.0 13.1 13.1 0.012/24/10 0.0 0.0 0.0 0.012/25/10 0.0 0.0 0.0 0.012/26/10 0.0 12.5 12.5 0.012/27/10 0.0 0.0 0.0 0.012/28/10 0.0 0.0 0.0 0.012/29/10 0.0 17.0 17.0 0.012/30/10 0.0 0.0 0.0 0.012/31/10 0.0 0.0 0.0 0.001/01/11 0.0 0.0 0.0 0.001/02/11 0.0 0.0 0.0 0.001/03/11 0.0 11.7 11.7 0.001/04/11 0.0 0.0 0.0 0.001/05/11 0.0 0.0 0.0 0.001/06/11 0.0 0.0 0.0 0.001/07/11 0.0 0.0 0.0 0.001/08/11 0.0 0.0 0.0 0.001/09/11 0.0 0.0 0.0 0.001/10/11 0.0 0.0 0.0 0.001/11/11 0.0 0.0 0.0 0.001/12/11 0.0 0.0 0.0 0.001/13/11 0.0 0.0 0.0 0.001/14/11 0.0 0.0 0.0 0.001/15/11 0.0 0.0 0.0 0.001/16/11 0.0 0.0 0.0 0.001/17/11 0.0 0.0 0.0 0.001/18/11 0.0 0.0 0.0 1.601/19/11 0.0 0.0 0.0 6.201/20/11 0.0 0.0 0.0 6.201/21/11 0.0 0.0 0.0 6.201/22/11 0.0 0.0 0.0 6.201/23/11 0.0 0.0 0.0 6.201/24/11 0.0 0.0 0.0 6.201/25/11 0.0 0.0 0.0 6.201/26/11 0.0 0.0 0.0 6.201/27/11 0.0 0.0 0.0 6.201/28/11 0.0 0.0 0.0 6.201/29/11 0.0 0.0 0.0 6.201/30/11 0.0 0.0 0.0 2.601/31/11 0.0 0.0 0.0 0.002/01/11 0.0 0.0 0.0 0.002/02/11 0.0 0.0 0.0 0.002/03/11 0.0 0.0 0.0 0.002/04/11 0.0 0.0 0.0 0.002/05/11 0.0 0.0 0.0 0.002/06/11 0.0 0.0 0.0 0.002/07/11 0.0 0.0 0.0 0.002/08/11 0.0 0.0 0.0 0.002/09/11 0.0 0.0 0.0 0.002/10/11 0.0 0.0 0.0 0.002/11/11 0.0 0.0 0.0 0.002/12/11 0.0 0.0 0.0 0.002/13/11 0.0 0.0 0.0 0.002/14/11 0.0 0.0 0.0 0.0

Page 3 of 6




02/15/11 0.0 0.0 0.0 0.002/16/11 0.0 13.8 13.8 0.002/17/11 0.0 0.0 0.0 0.002/18/11 0.0 12.5 12.5 0.002/19/11 0.0 19.9 19.9 0.002/20/11 0.0 0.0 0.0 0.002/21/11 0.0 0.0 0.0 0.002/22/11 0.0 0.0 0.0 0.002/23/11 0.0 0.0 0.0 0.002/24/11 0.0 0.0 0.0 0.002/25/11 0.0 0.0 0.0 0.002/26/11 0.0 2.9 2.9 0.002/27/11 0.0 0.0 0.0 0.002/28/11 0.0 0.0 0.0 0.003/01/11 0.0 0.0 0.0 0.003/02/11 0.0 0.0 0.0 0.003/03/11 0.0 0.0 0.0 0.003/04/11 0.0 0.0 0.0 0.003/05/11 0.0 0.0 0.0 0.003/06/11 0.0 0.0 0.0 0.003/07/11 0.0 0.7 0.7 0.003/08/11 0.0 0.0 0.0 0.003/09/11 0.0 0.0 0.0 0.003/10/11 0.0 0.0 0.0 0.003/11/11 0.0 0.0 0.0 0.003/12/11 0.0 0.0 0.0 0.003/13/11 0.0 0.0 0.0 0.003/14/11 0.0 0.0 0.0 0.003/15/11 0.0 0.0 0.0 0.003/16/11 0.0 0.0 0.0 0.003/17/11 0.0 0.0 0.0 0.003/18/11 0.0 0.0 0.0 0.003/19/11 0.0 0.0 0.0 0.003/20/11 0.0 22.1 22.1 0.003/21/11 0.0 18.8 18.8 0.003/22/11 0.0 0.0 0.0 0.003/23/11 0.0 7.3 7.3 0.003/24/11 0.0 0.0 0.0 0.003/25/11 0.0 16.2 16.2 0.003/26/11 0.0 0.0 0.0 0.003/27/11 0.0 0.0 0.0 0.003/28/11 0.0 0.0 0.0 0.003/29/11 0.0 0.0 0.0 0.003/30/11 0.0 0.0 0.0 0.003/31/11 0.0 0.0 0.0 0.004/01/11 0.0 0.0 0.0 0.004/02/11 0.0 0.0 0.0 0.004/03/11 0.0 0.0 0.0 0.004/04/11 0.0 0.0 0.0 0.004/05/11 0.0 0.0 0.0 0.004/06/11 0.0 0.0 0.0 0.004/07/11 0.0 0.0 0.0 0.004/08/11 0.0 0.0 0.0 0.004/09/11 0.0 0.0 0.0 0.004/10/11 0.0 0.0 0.0 0.004/11/11 0.0 0.0 0.0 0.004/12/11 0.0 0.0 0.0 0.004/13/11 0.0 0.0 0.0 0.004/14/11 0.0 0.0 0.0 0.004/15/11 0.0 0.0 0.0 0.004/16/11 0.0 0.0 0.0 0.004/17/11 0.0 0.0 0.0 0.004/18/11 0.0 0.0 0.0 0.004/19/11 0.0 0.0 0.0 0.004/20/11 0.0 0.0 0.0 0.004/21/11 0.0 0.0 0.0 0.004/22/11 0.0 0.0 0.0 0.004/23/11 0.0 0.0 0.0 0.004/24/11 0.0 0.0 0.0 0.004/25/11 0.0 0.0 0.0 0.004/26/11 0.0 0.0 0.0 0.004/27/11 0.0 0.0 0.0 0.004/28/11 0.0 0.0 0.0 0.004/29/11 0.0 0.0 0.0 0.004/30/11 0.0 0.0 0.0 0.0

Page 4 of 6




05/01/11 0.0 0.0 0.0 0.005/02/11 0.0 0.0 0.0 0.005/03/11 0.0 0.0 0.0 0.005/04/11 0.0 0.0 0.0 0.005/05/11 0.0 0.0 0.0 0.005/06/11 0.0 0.0 0.0 0.005/07/11 0.0 0.0 0.0 0.005/08/11 0.0 0.0 0.0 0.005/09/11 0.0 0.0 0.0 0.005/10/11 0.0 0.0 0.0 2.305/11/11 0.0 0.0 0.0 5.605/12/11 0.0 0.0 0.0 5.905/13/11 0.0 0.0 0.0 6.005/14/11 0.0 0.0 0.0 5.905/15/11 0.0 0.0 0.0 6.005/16/11 0.0 0.0 0.0 4.605/17/11 0.0 0.0 0.0 0.005/18/11 0.0 5.1 5.1 0.005/19/11 0.0 0.0 0.0 0.005/20/11 0.0 0.0 0.0 0.005/21/11 0.0 0.0 0.0 0.005/22/11 0.0 0.0 0.0 0.005/23/11 0.0 0.0 0.0 0.005/24/11 0.0 0.0 0.0 0.005/25/11 0.0 0.0 0.0 0.005/26/11 0.0 0.0 0.0 0.005/27/11 0.0 0.0 0.0 0.005/28/11 0.0 0.0 0.0 0.005/29/11 0.0 0.0 0.0 0.005/30/11 0.0 0.0 0.0 0.005/31/11 0.0 0.0 0.0 0.006/01/11 0.0 0.0 0.0 0.006/02/11 0.0 0.0 0.0 0.006/03/11 0.0 0.0 0.0 5.606/04/11 0.0 0.0 0.0 8.506/05/11 0.0 0.0 0.0 9.006/06/11 0.0 0.0 0.0 9.006/07/11 0.0 0.0 0.0 8.906/08/11 0.0 0.0 0.0 9.006/09/11 0.0 0.0 0.0 9.006/10/11 0.0 0.0 0.0 3.206/11/11 0.0 0.0 0.0 0.006/12/11 0.0 0.0 0.0 0.006/13/11 0.0 0.0 0.0 0.006/14/11 0.0 0.0 0.0 0.006/15/11 0.0 0.0 0.0 0.006/16/11 0.0 0.0 0.0 0.006/17/11 0.0 0.0 0.0 0.006/18/11 0.0 0.0 0.0 0.006/19/11 0.0 0.0 0.0 0.006/20/11 0.0 0.0 0.0 0.006/21/11 0.0 0.0 0.0 0.006/22/11 0.0 0.0 0.0 0.006/23/11 0.0 0.0 0.0 -4.006/24/11 0.0 0.0 0.0 -8.006/25/11 0.0 0.0 0.0 -8.006/26/11 0.0 0.0 0.0 -8.006/27/11 0.0 0.0 0.0 0.006/28/11 0.0 0.0 0.0 0.006/29/11 0.0 0.0 0.0 0.006/30/11 0.0 0.0 0.0 0.007/01/11 0.0 0.0 0.0 0.007/02/11 0.0 0.0 0.0 0.007/03/11 0.0 0.0 0.0 0.007/04/11 0.0 0.0 0.0 0.007/05/11 0.0 0.0 0.0 0.007/06/11 0.0 0.0 0.0 0.007/07/11 0.0 0.0 0.0 0.007/08/11 0.0 0.0 0.0 0.007/09/11 0.0 0.0 0.0 0.007/10/11 0.0 0.0 0.0 0.007/11/11 0.0 0.0 0.0 0.007/12/11 0.0 0.0 0.0 0.007/13/11 0.0 0.0 0.0 0.007/14/11 0.0 0.0 0.0 0.007/15/11 0.0 0.0 0.0 5.3

Page 5 of 6




07/16/11 0.0 0.0 0.0 9.507/17/11 0.0 0.0 0.0 9.607/18/11 0.0 0.0 0.0 9.507/19/11 0.0 0.0 0.0 9.507/20/11 0.0 0.0 0.0 9.207/21/11 0.0 0.0 0.0 2.007/22/11 0.0 0.0 0.0 9.307/23/11 0.0 0.0 0.0 6.707/24/11 0.0 0.0 0.0 9.007/25/11 0.0 0.0 0.0 9.407/26/11 0.0 0.0 0.0 9.307/27/11 0.0 0.0 0.0 9.407/28/11 0.0 0.0 0.0 5.407/29/11 0.0 0.0 0.0 0.007/30/11 0.0 0.0 0.0 0.007/31/11 0.0 0.0 0.0 0.008/01/11 0.0 0.0 0.0 0.008/02/11 0.0 0.0 0.0 0.008/03/11 0.0 0.0 0.0 0.008/04/11 0.0 0.0 0.0 2.308/05/11 0.0 0.0 0.0 4.508/06/11 0.0 0.0 0.0 4.608/07/11 0.0 0.0 0.0 4.508/08/11 0.0 0.0 0.0 4.608/09/11 0.0 0.0 0.0 4.508/10/11 0.0 0.0 0.0 4.608/11/11 0.0 0.0 0.0 3.708/12/11 0.0 0.0 0.0 5.908/13/11 0.0 0.0 0.0 6.008/14/11 0.0 0.0 0.0 5.908/15/11 0.0 0.0 0.0 6.008/16/11 0.0 0.0 0.0 3.108/17/11 0.0 0.0 0.0 2.308/18/11 0.0 0.0 0.0 3.108/19/11 0.0 0.0 0.0 5.908/20/11 0.0 0.0 0.0 6.008/21/11 0.0 0.0 0.0 5.908/22/11 0.0 0.0 0.0 4.508/23/11 0.0 0.0 0.0 1.708/24/11 0.0 0.0 0.0 0.008/25/11 0.0 0.0 0.0 0.008/26/11 0.0 0.0 0.0 0.008/27/11 0.0 0.0 0.0 0.008/28/11 0.0 0.0 0.0 0.008/29/11 0.0 0.0 0.0 0.008/30/11 0.0 0.0 0.0 0.008/31/11 0.0 0.0 0.0 0.009/01/11 0.0 0.0 0.0 0.009/02/11 0.0 0.0 0.0 0.009/03/11 0.0 0.0 0.0 0.009/04/11 0.0 0.0 0.0 0.009/05/11 0.0 0.0 0.0 0.009/06/11 0.0 0.0 0.0 0.009/07/11 0.0 0.0 0.0 0.009/08/11 0.0 0.0 0.0 0.009/09/11 0.0 0.0 0.0 0.009/10/11 0.0 0.0 0.0 0.009/11/11 0.0 0.0 0.0 0.009/12/11 0.0 0.0 0.0 0.009/13/11 0.0 0.0 0.0 0.009/14/11 0.0 0.0 0.0 0.009/15/11 0.0 0.0 0.0 0.009/16/11 0.0 0.0 0.0 0.009/17/11 0.0 0.0 0.0 0.009/18/11 0.0 0.0 0.0 0.009/19/11 0.0 0.0 0.0 0.009/20/11 0.0 0.0 0.0 0.009/21/11 0.0 0.0 0.0 0.009/22/11 0.0 0.0 0.0 0.009/23/11 0.0 0.0 0.0 0.009/24/11 0.0 0.0 0.0 0.009/25/11 0.0 0.0 0.0 0.009/26/11 0.0 0.0 0.0 0.009/27/11 0.0 0.0 0.0 0.009/28/11 0.0 0.0 0.0 0.009/29/11 0.0 0.0 0.0 0.009/30/11 0.0 0.0 0.0 0.0

Note:1. Table 3‐2 does not list the groundwater underflow volume credited for diluent water. 2. Negative values indicate water removed from the basin by draining.

Page 6 of 6

Table 3-3San Sevaine Basins 1 Through 5: Historical Monthly Water Deliveries and RWC

DateNo. Mos.

Since Initial RW Delivery

SW (AF) MWD (AF) Underflow (AF)

DW Total(AF)

DW 120-Month Total

(AF)RW (AF)

RW 120-Month Total

(AF)

DW + RW 120-Month Total (AF)

RWC

Perio

d

2005/06 Jul '05 -60 0. 468.7 468.7 469 0. 0. 468.7 0%Aug '05 -59 0. 212.5 212.5 681 0. 0. 681.2 0%Sep '05 -58 0. 558. 558. 1239 0. 0. 1239.2 0%Oct '05 -57 20. 555.2 575.2 1814 0. 0. 1814.4 0% D

Nov '05 -56 0. 1142.2 1142.2 2957 0. 0. 2956.6 0% E

Dec '05 -55 23. 963.3 986.3 3943 0. 0. 3942.9 0% R

Jan '06 -54 24. 944.3 968.3 4911 0. 0. 4911.2 0% U

Feb '06 -53 136.1 987.5 1123.6 6035 0. 0. 6034.8 0% S

Mar '06 -52 543.8 420.3 964.1 6999 0. 0. 6998.9 0% A

Apr '06 -51 1187. 0. 1187. 8186 0. 0. 8185.9 0% E

May '06 -50 138. 1247.8 1385.8 9572 0. 0. 9571.7 0% M

Jun '06 -49 0. 949. 949. 10521 0. 0. 10520.7 0%2006/07 Jul '06 -48 0. 15.4 15.4 10536 0. 0 10536 0%

Aug '06 -47 0. 1029.7 1029.7 11566 0. 0 11566 0%Sep '06 -46 0. 1006.4 1006.4 12572 0. 0 12572 0%Oct '06 -45 0. 1010.7 1010.7 13583 0. 0 13583 0%Nov '06 -44 3. 562.3 565.3 14148 0. 0 14148 0%Dec '06 -43 60.3 958.5 1018.8 15167 0. 0 15167 0%Jan '07 -42 36.4 899.8 936.2 16103 0. 0 16103 0%Feb '07 -41 76.2 266. 342.2 16445 0. 0 16445 0%Mar '07 -40 5.3 0. 5.3 16451 0. 0 16451 0%Apr '07 -39 3. 0. 3. 16454 0. 0 16454 0%May '07 -38 31. 0. 31. 16485 0. 0 16485 0%Jun '07 -37 30. 0. 30. 16515 0. 0 16515 0%

2007/08 Jul '07 -36 0. 0. 0. 16515 0. 0 16515 0%Aug '07 -35 0. 0. 0. 16515 0. 0 16515 0%Sep '07 -34 2. 0. 2. 16517 0. 0 16517 0%Oct '07 -33 6. 0. 6. 16523 0. 0 16523 0%Nov '07 -32 37. 0. 37. 16560 0. 0 16560 0%Dec '07 -31 75. 0. 75. 16635 0. 0 16635 0%Jan '08 -30 553. 0. 553. 17188 0. 0 17188 0%Feb '08 -29 29. 0. 29. 17217 0. 0 17217 0%Mar '08 -28 0. 0. 0. 17217 0. 0 17217 0%Apr '08 -27 0. 0. 0. 17217 0. 0 17217 0%May '08 -26 47. 0. 47. 17264 0. 0 17264 0%Jun '08 -25 0. 0. 0. 17264 0. 0 17264 0%

2008/09 Jul '08 -24 0. 0. 0. 17264 0. 0 17264 0%Aug '08 -23 0. 0. 0. 17264 0. 0 17264 0% L

Sep '08 -22 0. 0. 0. 17264 0. 0 17264 0% A

Oct '08 -21 0. 0. 0. 17264 0. 0 17264 0% C

Nov '08 -20 8. 0. 8. 17272 0. 0 17272 0% I

Dec '08 -19 86. 0. 86. 17358 0. 0 17358 0% R

Jan '09 -18 16. 0. 16. 17374 0. 0 17374 0% O

Feb '09 -17 107. 0. 107. 17481 0. 0 17481 0% T

Mar '09 -16 8. 0. 8. 17489 0. 0 17489 0% S

Apr '09 -15 0. 0. 0. 17489 0. 0 17489 0% I

May '09 -14 0. 0. 0. 17489 0. 0 17489 0% H

Jun '09 -13 0. 0. 0. 17489 0. 0 17489 0%2009/10 Jul '09 -12 0. 0. 0. 17489 0. 0 17489 0%

Aug '09 -11 0. 0. 0. 17489 0. 0 17489 0%Sep '09 -10 0. 0. 0. 17489 0. 0 17489 0%Oct '09 -9 56. 0. 56. 17545 0. 0 17545 0%Nov '09 -8 21. 0. 21. 17566 0. 0 17566 0%Dec '09 -7 334. 0. 334. 17900 0. 0 17900 0%Jan '10 -6 290. 0. 290. 18190 0. 0 18190 0%Feb '10 -5 223. 0. 223. 18413 0. 0 18413 0%Mar '10 -4 16. 0. 16. 18429 0. 0 18429 0%Apr '10 -3 53. 0. 53. 18482 0. 0 18482 0%May '10 -2 0. 0. 0. 18482 0. 0 18482 0%Jun '10 -1 0. 0. 0. 18482 0. 0 18482 0%

2010/11 Jul '10 0 0. 0. 0. 18482 50. 50 18532 0%Aug '10 1 0. 0. 0. 18482 44. 94 18576 1%Sep '10 2 0. 0. 0. 18482 42. 136 18618 1%Oct '10 3 95. 0. 139. 234. 18716 73. 209 18925 1% P

Nov '10 4 81. 0. 139. 220. 18936 13. 222 19158 1% U

Dec '10 5 577. 0. 139. 716. 19652 32. 254 19906 1% -

Jan '11 6 13. 0. 139. 152. 19804 72. 326 20130 2% T

Feb '11 7 143. 0. 139. 282. 20085 0. 326 20411 2% R

Mar '11 8 133. 0. 139. 272. 20357 0. 326 20683 2% A

Apr '11 9 0. 0. 139. 139. 20496 0. 326 20822 2% T

May '11 10 7. 537.9 139. 683.9 21180 36. 362 21542 2% S

Jun '11 11 0. 1169.2 173. 1342.2 22522 34. 396 22918 2%2011/12 Jul '11 12 0. 1010.7 173. 1183.7 23706 113. 509 24215 2%

Aug '11 13 0. 11.2 173. 184.2 23890 90. 599 24489 2%Sep '11 14 0. 205.6 173. 378.6 24269 0. 599 24868 2%Oct '11 15 39. 0. 173. 212. 24481 0. 599 25080 2%Nov '11 16 32. 0. 173. 205. 24686 0. 599 25285 2%Dec '11 17 20. 0. 173. 193. 24879 0. 599 25478 2%

Notes:DW = Diluent Water; Total DW is the sum of Storm Water & Local Runoff (SW), Imported Water from the State Water Project (MWD), and groundwater underflow.RW = Recycled WaterRWC = 120-month running total of recycled water / 120-month running total of all diluent and recycled water. While an RWC calculation is provided starting on the first month of RW recharge, 120 months of data may not be available until 10 years of recharge operations.RWC maximum = 0.5 mg/L / the Running Average of Total Organic Carbon (TOC) determined from a recharge site's start-up periodThe RWC maximum determined from the Start-Up Period is discussed in Section 6.4.

Page 1 of 1

Table 3-4San Sevaine 5: Infiltration Rate Measurements

Basin StartDate/Time, T Water Depth, H (feet) End

Date/Time Water Depth, H (feet) dT (days)

dH (feet)

Infiltration Rate (feet/day)

San Sevaine 5 02/20/07 11:25 2.74 02/21/07 14:57 2.68 1.15 0.06 0.05San Sevaine 5 11/12/10 00:00 1.80 11/13/10 00:00 1.33 1.00 0.47 0.47San Sevaine 5 11/13/10 00:00 1.33 11/14/10 00:00 0.74 1.00 0.59 0.59San Sevaine 5 11/18/10 17:26 1.85 11/19/10 21:42 1.78 1.18 0.07 0.06San Sevaine 5 11/21/10 00:00 4.15 11/22/10 00:00 4.04 1.00 0.11 0.11San Sevaine 5 11/21/10 20:07 4.18 11/23/10 18:36 3.94 1.94 0.24 0.12San Sevaine 5 11/24/10 00:00 4.04 11/30/10 00:00 3.53 6.00 0.51 0.09San Sevaine 5 11/24/10 00:40 4.04 11/29/10 06:49 3.61 5.26 0.43 0.08San Sevaine 5 12/14/10 00:00 9.47 12/25/10 21:30 9.05 11.90 0.42 0.04San Sevaine 5 12/26/10 10:34 9.21 12/29/10 05:34 8.57 2.79 0.64 0.23San Sevaine 5 12/30/10 01:00 8.76 01/02/11 14:20 7.92 3.56 0.84 0.24San Sevaine 5 01/04/11 00:00 8.02 01/08/11 00:00 7.02 4.00 1.00 0.25San Sevaine 5 02/04/11 00:00 3.89 02/09/11 00:00 3.54 5.00 0.35 0.07San Sevaine 5 02/09/11 00:00 3.54 02/14/11 00:00 3.22 5.00 0.32 0.06San Sevaine 5 02/20/11 00:00 4.13 02/25/11 00:00 3.82 5.00 0.31 0.06San Sevaine 5 02/26/11 00:00 5.89 03/02/11 00:00 5.45 4.00 0.44 0.11San Sevaine 5 03/22/11 00:01 3.58 03/23/11 00:01 3.45 1.00 0.13 0.13San Sevaine 5 03/31/11 00:00 3.77 04/03/11 00:00 3.51 3.00 0.26 0.09San Sevaine 5 04/05/11 00:00 3.44 04/08/11 00:00 3.22 3.00 0.22 0.07San Sevaine 5 04/10/11 01:00 3.08 04/14/11 23:45 2.72 4.95 0.36 0.07San Sevaine 5 04/14/11 23:45 2.72 04/18/11 00:50 2.50 3.05 0.22 0.07San Sevaine 5 04/18/11 00:50 2.50 04/25/11 00:40 2.11 6.99 0.39 0.06San Sevaine 5 04/25/11 00:40 2.11 04/29/11 00:50 1.86 4.01 0.25 0.06San Sevaine 5 04/29/11 00:50 1.86 05/04/11 23:50 1.45 5.96 0.41 0.07San Sevaine 5 05/20/11 00:00 3.49 05/24/11 00:00 3.12 4.00 0.37 0.09San Sevaine 5 05/24/11 00:00 3.12 05/30/11 00:00 2.81 6.00 0.31 0.05

San Sevaine 3 02/20/07 11:30 0.71 02/21/07 15:00 0.00 1.15 0.71 0.62San Sevaine 3 12/07/09 19:46 2.53 12/08/09 15:44 0.98 0.83 1.55 1.86San Sevaine 3 01/22/10 23:06 4.67 01/23/10 20:06 3.05 0.88 1.62 1.85San Sevaine 3 01/23/10 20:06 3.05 01/24/10 07:06 2.04 0.46 1.01 2.20San Sevaine 3 01/24/10 07:06 2.04 01/24/10 18:07 0.94 0.46 1.10 2.40San Sevaine 3 02/06/10 22:03 4.54 02/07/10 10:52 3.48 0.53 1.06 1.98San Sevaine 3 02/07/10 10:52 3.48 02/07/10 22:13 2.49 0.47 0.99 2.09San Sevaine 3 02/07/10 22:13 2.49 02/08/10 08:13 1.50 0.42 0.99 2.38San Sevaine 3 02/09/10 23:01 2.17 02/10/10 04:01 1.98 0.21 0.19 0.91San Sevaine 3 02/10/10 04:01 1.98 02/10/10 16:01 1.44 0.50 0.54 1.08San Sevaine 3 02/10/10 16:01 1.44 02/11/10 02:01 0.93 0.42 0.51 1.22San Sevaine 3 02/21/10 19:31 1.78 02/22/10 09:31 1.02 0.58 0.76 1.30San Sevaine 3 02/22/10 09:31 1.02 02/22/10 16:32 0.64 0.29 0.38 1.30San Sevaine 3 02/27/10 19:25 4.81 02/28/10 06:36 4.00 0.47 0.81 1.74San Sevaine 3 02/28/10 06:36 4.00 02/28/10 13:44 3.47 0.30 0.53 1.78San Sevaine 3 02/28/10 13:44 3.47 02/28/10 20:44 2.96 0.29 0.51 1.75San Sevaine 3 02/28/10 20:44 2.96 03/01/10 08:44 1.96 0.50 1.00 2.00San Sevaine 3 03/01/10 08:44 1.96 03/01/10 21:05 0.97 0.51 0.99 1.92San Sevaine 3 03/06/10 23:30 0.98 03/07/10 09:30 0.53 0.42 0.45 1.08San Sevaine 3 11/20/10 16:54 3.38 11/21/10 07:01 1.84 0.59 1.54 2.62San Sevaine 3 11/21/10 19:06 1.93 11/22/10 06:10 0.62 0.46 1.31 2.84San Sevaine 3 03/21/11 00:35 2.99 03/22/11 13:40 1.99 1.55 1.00 0.65San Sevaine 3 03/22/11 13:40 1.99 03/23/11 02:36 0.99 0.54 1.00 1.86

San Sevaine 2 02/20/07 11:35 1.66 02/21/07 15:03 0.96 1.14 0.70 0.61San Sevaine 2 01/23/10 00:01 6.40 01/23/10 14:06 5.04 0.59 1.36 2.32San Sevaine 2 01/23/10 14:06 5.04 01/24/10 02:06 4.00 0.50 1.04 2.08San Sevaine 2 01/24/10 02:06 4.00 01/24/10 14:06 2.99 0.50 1.01 2.02San Sevaine 2 01/24/10 14:06 2.99 01/25/10 02:07 2.04 0.50 0.95 1.90San Sevaine 2 01/25/10 02:07 2.04 01/25/10 15:06 1.00 0.54 1.04 1.92San Sevaine 2 02/07/10 04:52 6.04 02/07/10 14:13 4.96 0.39 1.08 2.77San Sevaine 2 02/07/10 14:13 4.96 02/07/10 23:13 3.97 0.38 0.99 2.64San Sevaine 2 02/07/10 23:13 3.97 02/08/10 09:13 2.94 0.42 1.03 2.47San Sevaine 2 02/08/10 09:13 2.94 02/08/10 19:01 2.00 0.41 0.94 2.30San Sevaine 2 02/08/10 19:01 2.00 02/09/10 05:01 1.06 0.42 0.94 2.26San Sevaine 2 02/27/10 22:36 3.03 02/28/10 04:36 2.51 0.25 0.52 2.08San Sevaine 2 02/28/10 04:36 2.51 02/28/10 09:44 1.97 0.21 0.54 2.52San Sevaine 2 02/28/10 09:44 1.97 02/28/10 14:44 1.48 0.21 0.49 2.35San Sevaine 2 02/28/10 14:44 1.48 02/28/10 19:44 0.99 0.21 0.49 2.35San Sevaine 2 03/21/11 08:41 1.81 03/21/11 20:19 1.01 0.48 0.80 1.65

San Sevaine 1 02/20/07 11:37 1.83 02/21/07 15:06 1.20 1.15 0.63 0.55San Sevaine 1 12/07/09 16:10 5.00 12/07/09 18:47 4.50 0.11 0.50 4.59San Sevaine 1 12/07/09 18:47 4.50 12/07/09 22:58 3.95 0.17 0.55 3.16San Sevaine 1 12/07/09 22:58 3.95 12/08/09 03:00 3.48 0.17 0.47 2.80San Sevaine 1 12/08/09 03:00 3.48 12/08/09 07:11 3.03 0.17 0.45 2.58San Sevaine 1 12/08/09 07:11 3.03 12/08/09 12:11 2.51 0.21 0.52 2.50San Sevaine 1 12/08/09 12:11 2.51 12/08/09 17:11 2.01 0.21 0.50 2.40San Sevaine 1 12/08/09 17:11 2.01 12/08/09 23:11 1.46 0.25 0.55 2.20San Sevaine 1 12/08/09 23:11 1.46 12/09/09 06:11 1.03 0.29 0.43 1.47San Sevaine 1 12/09/09 06:11 1.03 12/09/09 11:11 0.70 0.21 0.33 1.58San Sevaine 1 12/11/09 08:21 3.43 12/11/09 14:21 2.99 0.25 0.44 1.76San Sevaine 1 12/11/09 14:21 2.99 12/11/09 22:21 2.49 0.33 0.50 1.50San Sevaine 1 12/11/09 22:21 2.49 12/12/09 00:00 2.37 0.07 0.12 1.75San Sevaine 1 01/23/10 00:01 4.63 01/23/10 09:06 4.03 0.38 0.60 1.59San Sevaine 1 01/23/10 09:06 4.03 01/24/10 00:01 2.97 0.62 1.06 1.71San Sevaine 1 01/24/10 00:01 2.97 01/24/10 15:06 2.04 0.63 0.93 1.48

Page 1 of 1

Surface Water0 5 10 15 20 25 30 35

06/02/10 2950 2640 2910 1740 1360 1790 1700

06/09/10 2680 2560 3040 1830 1490 1850 1770

06/15/10 2480 2580 3130 1830 1600 1830 1810

06/22/10 2224 1860 1750 1800 1710

06/29/10 2080 2680 1890 1730

07/07/10 2010 2720 3220 1920 2170 1740

07/13/10 650 1920 2730 3240 1960 2310 1720

07/20/10 715 2010 2700 3310 2030 2450 1710 1730

07/27/10 760 3080 3040 3340 2050 2600 1670 1720

08/04/10 725 1850 1290 3370 1930 3110 2060 1730

08/11/10 730 1530 2640 740 3250 2160

08/19/10 750 1200 860 1310 765 3040 2500 1790

08/24/10 790 885 808 1200 655 3160 2930 1650

09/01/10 740 870 840 1320 710 3400

09/08/10 770 1240 750 3500 4080

09/14/10 745 1010 780 3610 4220

09/21/10 795 940 855 3550 4400 1880

09/29/10 820 910 805 840 840 3350 3990 2300

10/05/10 740 920 830 815 825 3380 4083 2200

10/12/10 902 864 871 846 3560 4486 2268

10/19/10 715 910 865 810 3460 4530 2170

10/27/10 570 900 770 865 805 3410 4460 2230

11/03/10 560 810 720 850 790 3140 4370 2300

11/09/10 570 760 660 845 810 2930 3850 2220

11/16/10 770 730 650 835 795 3060 3820 2270

11/23/10 245 840 670 755 3200 3790 2220

12/07/10 380 490 535 810 3210 3630 2200

12/14/10 575 490 410 875 3150 3570 2160

01/11/11 130 260 240 630 615 3170 3750 2250

01/18/11 840 240 215 470 3130 3680 2200

01/26/11 715 320 220 420 3030 3500 2150

02/01/11 705 405 245 370 2760 3340 2060

02/08/11 685 560 280 350 265 2810 3280 1980

02/16/11 680 705 535 350 260 2750 3260 1920

02/23/11 420 760 660 330 250 2620 3130 1900

03/01/11 235 750 670 465 240 3100 1870

03/08/11 770 520 560 620 230 3090 1830

03/15/11 540 445 700 310 3100 1810

03/30/11 110 640 450 710 400 3040 1730

04/06/11 130 595 510 870 400 2970 1600

04/19/11 175 455 315 860 560 2940 1600

04/26/11 205 390 260 860 590 1520

05/04/11 270 390 250 935 570 2870 1550

05/10/11 285 420 250 940 540 2830 1520

05/17/11 505 450 280 970 540 2820 1500

05/25/11 510 455 375 990 500 2770 1480

06/02/11 570 465 360 950 480 1450

06/08/11 665 446 356 810 444 2690 1360

06/14/11 640 620 470 725 425 2650 1430

06/21/11 675 690 600 780 420 2680 1420

06/28/11 750 755 680 790 415 1470

07/07/11 760 810 725 705 500 1505

07/15/11 865 735 495

07/20/11 670 895 760 750 2640 1480

07/27/11 665 1050 810 990 1450

08/03/11 605 1010 910 1140 1460

08/09/11 645 940 895 1100 1420

08/16/11 640 885 810 1040 1450

08/23/11 635 830 725 1060 615 1420

08/30/11 660 795 675 1050 1390

09/07/11 300 810 670 1040

09/13/11 665 975

Notes (blank) Insufficient sample from lysimeter result in parameter not being analyzed

Table 4-1San Sevaine 5: Surface Water and Lysimeter Results

Electrical Conductivity(µmhos/cm)

Date Lysimeter Depth (ft bgs)

Page 1 of 1

Surface Water

0 5 10 15 20 25 30 35

06/02/10 10.88 8.70 18.42 6.18 5.01 6.78 11.25

06/09/10 11.91 8.07 24.83 11.56 11.67 9.73 18.89

06/15/10 9.77 7.83 12.86 6.25 6.19 5.36 7.59

06/22/10 9.19 6.16 5.17 4.98 21.53

06/29/10 11.17 8.76 12.97 6.63

07/07/10 8.91 11.16 10.13 14.33 5.56

07/13/10 2.77 8.88 9.21 11.70 6.22 17.80 4.55

07/20/10 2.76 8.93 8.27 9.67 6.28 16.59 4.68 11.40

07/27/10 4.67 9.01 8.68 11.15 19.87 8.12

08/04/10 12.31 4.39 2.85 6.96 5.15 6.47 4.88 28.83

08/11/10 16.26 4.03 9.98 2.39 13.62 6.69

08/19/10 3.44 4.66 2.79 7.63 3.29 9.42 7.11 11.83

08/24/10 17.63 4.83 3.29 5.55 2.04 9.55 5.42 8.95

09/01/10 4.02 4.86 4.18 10.32 1.89 12.39

09/08/10 13.72 1.82 18.61 7.48

09/14/10 10.48 13.24 2.06 23.33 7.47

09/21/10 10.34 14.89 2.31 7.06

09/29/10 12.72 4.15 3.87 2.65 2.19 4.42 5.59 2.83

10/05/10 5.91 4.87 4.32 2.73 4.26 4.27 5.90 2.34

10/12/10 5.67 4.22 3.94 2.73 6.12 3.76 7.00 2.60

10/19/10 6.66 4.02 2.85 3.94 6.58 2.17

10/27/10 7.43 3.86 3.81 2.72 8.20 3.66 7.27 4.18

11/03/10 8.90 3.65 3.41 2.60 6.63 4.28 6.73 2.20

11/09/10 10.72 3.72 3.72 2.54 3.32 3.23 5.36 2.20

11/16/10 2.85 3.67 3.35 2.32 5.50 5.44 2.09

11/23/10 4.76 3.65 3.22

12/07/10 4.14 2.96 2.94 5.59 4.95 1.99

12/14/10 4.28 2.40 2.58 1.90 5.50 4.89 1.92

01/11/11 3.26 2.10 2.39 1.72 4.81 6.57 4.89 2.00

01/18/11 2.79 1.93 1.99 1.73 4.27 4.55 1.78

01/26/11 3.88 2.07 1.88 1.62 4.68 4.35 1.87

02/01/11 4.79 2.28 2.03 1.77 4.36 4.27 1.98

02/08/11 8.30 2.36 1.63 1.60 1.21 4.71 4.63 2.21

02/16/11 10.02 2.38 2.12 1.78 1.03 3.80 4.29 2.22

02/23/11 9.14 2.43 2.20 1.92 0.91 4.08 1.90

03/01/11 6.52 2.55 2.31 1.51 0.88 4.14 1.63

03/08/11 3.38 2.32 2.60 1.91 0.95 4.12 1.86

03/15/11 2.43 2.48 1.79 1.01 4.06 1.65

03/30/11 5.55 3.03 2.13 2.00 1.23 4.13 1.81

04/06/11 5.64 3.19 2.47 2.49 2.41 3.70 1.94

04/19/11 7.99 2.15 2.12 2.02 1.80 4.09 1.68

04/26/11 8.70 2.29 2.26 1.81 1.41 3.83

05/04/11 10.03 2.23 2.56 1.81 1.37 3.79 1.46

05/10/11 12.65 2.54 2.37 1.60 1.18 2.02

05/17/11 10.54 2.36 2.06 1.90 1.39 4.16 1.58

05/25/11 8.65 2.04 1.93 1.50 1.34 3.78 1.35

06/02/11 11.80 2.01 1.80 1.55 1.13 1.20

06/08/11 6.71 3.36 3.25 2.46 2.12 3.91 2.09

06/14/11 8.12 2.22 1.66 1.36 0.91 3.93 1.25

06/21/11 10.32 2.47 2.01 1.46 1.07 5.19 1.20

06/28/11 4.47 2.56 2.32 1.39 0.87 1.07

07/07/11 3.45 2.41 2.77 2.16 1.25 17.60 5.81 1.42

07/15/11 2.90 2.58 7.32

07/20/11 4.19 2.34 2.08 4.44 4.23 1.37

07/27/11 5.41 2.42 2.14 1.92 2.16

08/03/11 12.15 2.50 2.48 2.21 2.15

08/09/11 7.10 2.41 2.40 1.73 2.63

08/16/11 11.08 2.27 2.46 1.64 1.99

08/23/11 11.19 2.21 2.11 1.65 5.83 1.44

08/30/11 3.02 2.86 2.07 3.26

09/07/11

09/13/11


Depth Profile (Figure 5-1)Depth 0 5 10 15 20 25 30 35

Avg TOC 7.8 2.9 2.6 3.1 2.5 7.7 5.2 2.4Data Rage 8/11/10 (first recycled water at 20-foot lysimeter) to 9/13/11 (last day of start-up period)


Total Organic Carbon(mg/L)

Date Lysimeter Depth (ft bgs)

Page 1 of 1


Nitrogen Speciation(mg/L)

Date Surface Water Lysimeter Depth (ft bgs)

0 5 10 15 20 25 30 35

NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN NH3-N NO3-N NO2-N TKN TN

06/02/10 <0.1 9.88 0.88 0.72 11.5 <0.1 14.12 0.95 0.77 15.8 <0.1 0.54 0.69 <0.5 1.5 <0.1 <0.1 1.16 <0.5 1.5 <0.1 <0.1 0.74 <0.5 1.0 <0.1 3.37 2.95 <0.5 6.6 1.0 <0.506/09/10 <0.1 8.44 0.27 0.53 9.2 <0.1 11.84 0.63 <0.5 12.7 <0.1 0.53 0.08 <0.5 0.9 <0.1 <0.1 0.20 <0.5 <0.6 <0.1 <0.1 0.27 <0.5 0.6 <0.1 2.86 2.15 0.58 5.6 <0.1 1.0 <0.5 <0.5 1.506/15/10 <0.1 8.17 0.21 0.59 9.0 <0.1 11.48 0.66 0.81 13.0 <0.1 0.55 0.08 <0.5 0.9 <0.1 <0.1 0.32 <0.5 0.6 <0.1 <0.1 0.27 <0.5 0.6 <0.1 2.70 2.03 <0.5 5.0 <0.1 1.1 <0.5 <0.5 1.606/22/10 <0.1 6.67 0.19 0.95 7.8 <0.1 0.30 0.34 <0.5 0.9 <0.1 2.67 0.23 <0.5 3.1 <0.1 2.19 1.66 <0.5 4.1 <0.1 0.8 <0.5 <0.5 1.306/29/10 <0.1 6.11 0.10 1.13 7.3 8.77 0.58 0.24 0.06 <0.1 2.07 1.54 0.5 4.107/07/10 0.16 4.62 0.21 0.50 5.3 7.31 0.53 0.28 0.13 <0.1 0.16 0.33 <0.5 0.7 <0.1 0.64 0.24 <0.5 1.1 <0.1 1.63 1.40 <0.5 3.307/13/10 <0.1 3.08 0.12 <0.5 3.5 <0.1 2.94 0.20 0.64 3.8 <0.1 6.14 0.51 1.18 7.8 0.33 0.13 <0.1 0.35 0.26 <0.5 0.9 <0.1 0.57 0.15 <0.5 1.0 <0.1 1.53 1.27 <0.5 3.107/20/10 <0.1 3.74 0.15 0.6 4.5 <0.1 2.80 0.27 0.86 3.9 <0.1 5.06 0.47 0.65 6.2 <0.1 0.14 0.14 <0.5 <0.6 <0.1 0.43 0.26 <0.5 0.9 <0.1 0.52 0.16 <0.5 0.9 <0.1 1.50 1.17 <0.5 2.9 <0.1 0.5 0.542 <0.5 1.307/27/10 <0.1 3.46 0.36 1.11 4.9 0.1 5.28 0.43 1.27 7.0 0.1 3.49 0.49 1.24 5.2 0.16 0.17 <0.1 0.51 0.29 1.25 2.0 <0.1 0.52 0.18 1.14 1.8 <0.1 1.29 1.13 0.76 3.2 0.3 0.37208/04/10 <0.1 0.12 0.02 2.61 2.8 0.1 2.83 0.24 0.77 3.8 0.8 1.97 0.55 1.55 4.1 0.19 <0.1 <0.01 0.56 <0.6 <0.1 1.48 <0.01 1.56 3.0 <0.1 0.33 <0.01 0.57 0.9 <0.1 0.90 0.58 <0.5 1.7 <0.1 0.3608/11/10 <0.1 <0.1 0.14 1.99 2.2 <0.1 0.55 0.50 <0.5 1.3 0.52 <0.1 0.22 1.36 1.6 <0.1 2.58 0.53 <0.5 3.4 <0.1 1.08 0.35 <0.5 1.7 <0.1 0.90 0.96 <0.5 2.108/19/10 <0.1 5.46 0.19 0.83 6.5 <0.1 <0.1 0.24 0.5 0.8 0.23 0.13 0.21 0.71 1.1 0.62 <0.1 0.27 1.51 1.8 <0.1 2.52 0.53 0.97 4.0 <0.1 1.05 0.34 0.99 2.4 <0.1 0.93 0.59 0.79 2.3 0.17 0.80 0.65 0.84 2.308/24/10 <0.1 <0.1 0.12 1.7 1.9 <0.1 <0.1 0.19 0.65 0.9 0.13 <0.1 0.20 <0.5 <0.6 0.89 <0.1 0.26 1.07 1.4 <0.1 2.07 0.53 1.02 3.6 <0.1 0.46 0.34 0.56 1.4 <0.1 1.14 0.44 <0.5 1.8 1.12 0.5709/01/10 <0.1 3.79 0.20 0.82 4.8 <0.1 0.13 0.19 <0.5 <0.6 <0.1 2.66 0.51 <0.5 3.4 <0.1 0.26 0.26 <0.5 <0.609/08/10 <0.1 <0.1 0.14 1.99 2.2 <0.1 0.19 0.13 1.79 0.58 0.57 2.9 0.11 0.19 <0.1 1.25 0.21 <0.5 1.709/14/10 0.19 <0.1 0.15 2.22 2.4 <0.1 0.20 0.11 <0.1 0.57 0.54 1.2 <0.1 0.16 <0.1 0.97 0.18 <0.5 1.409/21/10 0.23 <0.1 0.15 1.53 1.7 <0.1 0.19 <0.1 <0.1 0.54 <0.5 <0.6 <0.1 0.14 <0.1 0.70 0.14 <0.5 1.1 0.99 0.1909/29/10 0.22 0.10 0.10 2.17 2.4 <0.1 <0.1 0.13 0.55 0.7 <0.1 <0.1 0.19 0.62 0.9 0.53 <0.1 0.19 1.02 1.3 <0.1 <0.1 0.24 <0.5 <0.6 <0.1 <0.1 0.15 <0.5 <0.6 0.51 0.74 0.15 <0.5 1.1 <0.1 2.81 0.63 0.72 4.210/05/10 <0.1 2.63 0.16 1.53 4.3 <0.1 0.18 0.16 0.87 1.2 <0.1 <0.1 0.18 <0.5 <0.6 0.48 <0.1 0.19 0.91 1.1 <0.1 0.12 <0.1 <0.1 0.16 <0.5 <0.6 <0.1 0.58 0.11 0.81 1.5 <0.1 2.85 0.61 1.16 4.610/12/10 <0.1 1.68 0.23 1.41 3.3 <0.1 0.14 <0.5 <0.6 <0.1 0.17 0.56 0.8 <0.1 0.19 0.7 0.9 <0.1 0.17 <0.1 <0.1 0.14 <0.5 <0.6 0.46 0.12 0.83 1.4 0.49 2.66 0.66 0.69 4.010/19/10 0.2 0.74 0.11 2.18 3.0 <0.1 <0.1 0.17 <0.5 <0.6 0.35 <0.1 0.17 1.1 1.3 <0.1 0.16 <0.1 <0.1 0.14 0.77 1.0 <0.1 0.32 0.10 0.79 1.2 0.52 1.95 0.56 0.96 3.510/27/10 <0.1 <0.1 0.02 2.77 2.8 <0.1 <0.1 <0.01 0.62 0.7 <0.1 <0.1 <0.01 0.61 0.7 0.32 <0.1 <0.01 0.6 0.7 <0.1 <0.01 0.33 <0.1 <0.01 <0.5 <0.6 <0.1 0.19 <0.01 1.10 1.3 0.51 0.92 0.29 0.71 1.911/03/10 <0.1 <0.1 <0.01 2.1 2.1 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 0.3 <0.1 <0.01 <0.5 <0.6 <0.1 <0.01 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 0.9 0.9 0.5 0.3 0.08 1.0 1.411/09/10 <0.1 0.1 <0.01 2.2 2.4 <0.1 <0.1 <0.01 0.8 0.8 <0.1 <0.1 <0.01 0.8 0.8 0.3 <0.1 <0.01 <0.5 <0.6 <0.1 <0.01 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 0.5 0.2 <0.01 0.8 1.011/16/10 <0.1 5.1 0.12 1.8 7.0 <0.1 <0.1 0.13 0.9 1.1 <0.1 0.2 0.03 0.8 1.0 0.2 <0.1 <0.01 1.1 1.2 <0.1 <0.01 <0.1 <0.1 <0.01 0.5 <0.6 <0.1 <0.1 <0.01 0.7 0.7 0.3 <0.1 <0.01 1.2 1.311/23/10 0.2 1.0 0.11 1.0 2.1 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.6 0.2 <0.1 0.16 0.5 0.7 <0.1 <0.1 0.12 <0.5 <0.6 <0.1 <0.1 0.03 <0.5 <0.6 0.3 <0.1 0.15 <0.5 <0.612/07/10 <0.1 1.59 0.11 1.51 3.2 <0.1 <0.1 0.106 0.7 0.9 <0.1 <0.1 0.12 0.67 0.8 0.13 <0.1 <0.01 0.82 0.9 <0.1 <0.01 0.82 0.88 <0.1 <0.01 0.2 <0.1 <0.01 1.12 1.1812/14/10 <0.1 2.21 0.11 1.3 3.6 <0.1 0.4 0.367 0.93 1.7 <0.1 <0.1 0.14 0.81 1.0 <0.1 <0.1 0.14 1.15 1.3 <0.1 0.14 <0.1 <0.1 0.03 0.67 0.8 0.12 <0.1 0.14 1.25 1.401/11/11 <0.1 0.48 0.10 <0.5 <0.6 <0.1 <0.1 0.124 <0.5 <0.6 <0.1 <0.1 0.33 <0.5 0.6 <0.1 <0.1 0.15 <0.5 <0.6 0.43 0.16 <0.1 0.15 <0.1 <0.1 0.06 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.601/18/11 <0.1 5.01 0.09 1.28 6.4 <0.1 0.1 0.162 0.51 0.8 <0.1 <0.1 0.15 0.54 0.7 <0.1 <0.1 0.17 <0.5 <0.6 <0.1 <0.1 <0.01 0.68 0.7 <0.1 <0.1 0.05 0.83 0.9 <0.1 <0.1 <0.01 0.73 0.801/26/11 <0.1 4.04 0.07 <0.1 <0.1 0.129 <0.1 <0.1 0.13 <0.1 <0.1 0.15 <0.1 <0.01 <0.1 <0.1 0.03 <0.1 <0.1 <0.0102/01/11 <0.1 4.05 0.12 0.78 4.9 0.1 <0.1 0.175 <0.5 <0.6 <0.1 <0.1 0.16 <0.5 <0.6 <0.1 <0.1 0.19 <0.5 <0.6 <0.1 0.17 <0.1 <0.1 0.07 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.602/08/11 <0.1 1.04 0.11 1.98 3.1 0.1 <0.1 0.078 <0.5 <0.6 <0.1 <0.1 0.10 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 0.41 0.21 <0.5 0.9 <0.1 <0.01 <0.1 <0.1 <0.01 0.59 <0.6 <0.1 <0.1 <0.01 0.55 <0.602/16/11 <0.1 0.19 0.09 2.05 2.3 <0.1 <0.1 0.118 <0.5 <0.6 <0.1 <0.1 0.11 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 0.54 0.20 <0.5 1.0 <0.1 0.15 <0.1 <0.1 0.06 <0.5 <0.6 <0.1 0.11 0.13 <0.5 <0.602/23/11 <0.1 0.13 0.11 1.6 1.8 <0.1 <0.1 0.095 <0.5 <0.6 <0.1 <0.1 0.09 <0.5 <0.6 <0.1 <0.1 0.16 <0.5 <0.6 <0.1 0.59 0.22 <0.5 1.1 <0.1 0.07 <0.1 0.23 0.05 0.52 0.803/01/11 <0.1 0.26 0.12 1.47 1.8 <0.1 <0.1 0.088 0.55 0.7 <0.1 <0.1 0.09 0.68 0.8 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 1.12 0.20 <0.5 1.6 <0.1 <0.1 0.07 0.51 <0.6 <0.1 0.37 0.05 <0.5 <0.603/08/11 0.12 4.83 0.09 1.18 6.1 <0.1 <0.1 0.103 <0.5 <0.6 <0.1 <0.1 0.09 <0.5 <0.6 <0.1 <0.1 0.11 0.57 0.7 <0.1 0.49 0.18 <0.5 0.9 <0.1 0.05 <0.1 0.41 0.05 <0.5 <0.603/15/11 <0.1 <0.1 0.122 <0.5 <0.6 <0.1 <0.1 0.12 <0.5 <0.6 <0.1 <0.1 0.11 <0.5 <0.6 <0.1 0.19 0.15 <0.5 0.6 <0.1 0.08 <0.1 0.51 0.11 <0.5 0.603/30/11 <0.1 <0.1 0.09 1.04 1.1 <0.1 <0.1 0.04 <0.5 <0.6 <0.1 <0.1 0.06 <0.5 <0.6 <0.1 <0.1 0.03 <0.5 <0.6 <0.1 0.17 0.08 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.44 <0.01 <0.5 <0.604/06/11 <0.1 <0.1 0.09 1.07 1.2 <0.1 0.109 0.071 <0.5 <0.6 <0.1 <0.1 0.06 <0.5 <0.6 <0.1 0.26 <0.01 <0.5 <0.6 <0.1 0.17 0.07 <0.5 <0.6 <0.1 <0.1 <0.01 0.62 0.6 <0.1 0.31 <0.01 <0.5 <0.604/19/11 0.26 <0.1 0.14 0.91 1.1 <0.1 <0.1 0.17 <0.5 <0.6 <0.1 <0.1 0.15 <0.5 <0.6 <0.1 <0.1 0.05 <0.5 <0.6 <0.1 <0.1 0.05 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.49 0.07 <0.5 <0.604/26/11 0.4 <0.1 0.15 1.51 1.7 <0.1 <0.1 0.164 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 <0.1 0.07 <0.5 <0.6 <0.1 <0.1 0.05 <0.5 <0.6 <0.1 0.62 0.07 <0.5 0.705/04/11 0.22 <0.1 0.14 1.52 1.7 <0.1 <0.1 0.165 <0.5 <0.6 <0.1 <0.1 0.14 <0.5 <0.6 <0.1 <0.1 0.04 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.01 <0.1 0.55 <0.01 <0.5 <0.605/10/11 <0.1 <0.1 0.152 2.340 2.5 <0.1 <0.1 0.196 0.58 0.8 <0.1 <0.1 0.163 <0.5 <0.6 <0.1 <0.1 0.071 <0.5 <0.6 <0.1 0.107 0.058 <0.5 <0.6 <0.1 0.039 0.2 0.553 0.091 <0.5 0.64405/17/11 <0.1 0.3 0.057 1.970 2.3 <0.1 <0.1 0.196 <0.5 <0.6 <0.1 <0.1 0.15 <0.5 <0.6 <0.1 <0.1 0.071 <0.5 <0.6 <0.1 0.119 0.047 <0.5 <0.6 <0.1 0.041 <0.1 0.538 0.101 <0.5 0.63905/25/11 <0.1 <0.1 <0.01 1.850 1.9 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.32 <0.01 <0.5 0.6 <0.1 <0.01 <0.1 0.52 <0.01 <0.5 <0.606/02/11 0.4 <0.1 <0.01 2.3 2.3 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.8 <0.01 <0.5 1.0 <0.1 0.4 <0.01 <0.5 <0.606/08/11 <0.1 2.2 <0.01 1.0 3.2 <0.1 <0.01 <0.1 <0.01 0.8 <0.01 <0.1 0.4 <0.01 <0.5 <0.606/14/11 <0.1 0.5 0.01 1.6 2.1 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 1.8 <0.1 <0.01 <0.5 <0.6 <0.1 1.7 <0.01 <0.5 1.9 <0.1 <0.01 <0.1 0.4 <0.01 <0.5 <0.606/21/11 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.5 <0.01 <0.5 0.7 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 1.9 <0.01 <0.5 2.1 <0.1 <0.01 <0.1 0.3 <0.01 <0.5 <0.606/28/11 0.2 3.6 0.05 2.1 5.7 <0.1 0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 0.10 <0.5 <0.6 <0.1 1.0 0.11 <0.1 0.4 0.0407/07/11 <0.1 4.0 <0.01 0.5 4.5 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.6 <0.01 <0.5 0.9 0.5 0.3 <0.01 0.9 1.207/15/11 <0.1 0.2 <0.01 <0.5 0.5 <0.1 <0.1 <0.01 <0.5 <0.6 0.1 <0.0107/20/11 <0.1 3.1 <0.01 1.1 4.2 <0.1 0.1 <0.01 0.9 1.0 <0.1 <0.1 <0.01 0.7 0.8 <0.1 <0.1 <0.01 0.7 0.8 <0.1 <0.1 <0.01 1.5 1.5 0.3 0.2 <0.01 0.9 1.107/27/11 <0.1 2.0 <0.01 1.0 3.0 <0.1 0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.2 <0.01 <0.5 <0.608/03/11 <0.1 0.1 <0.01 2.9 3.0 <0.1 0.3 <0.01 <0.5 0.6 0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.5 <0.01 <0.5 <0.608/09/11 <0.1 1.5 <0.01 1.6 3.1 <0.1 0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 0.9 <0.01 0.5 1.408/16/11 <0.1 0.2 <0.01 2.5 2.7 <0.1 <0.1 <0.01 0.6 0.7 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 1.5 <0.01 <0.5 1.508/23/11 <0.1 0.1 <0.01 3.5 3.6 <0.1 <0.1 <0.01 0.25 0.3 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 1.7 <0.01 <0.5 1.708/30/11 <0.1 0.1 <0.01 2.3 2.3 <0.1 <0.1 <0.01 0.25 0.3 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 1.6 <0.01 <0.5 1.609/07/11 <0.1 0.2 <0.01 0.3 0.5 <0.1 <0.01 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.609/13/11 <0.1 <0.1 <0.01 <0.5 <0.6 <0.1 <0.1 <0.01 <0.5 <0.6


Surface Water

0 5 10 15 20 25 30 3506/02/10 11.5 15.8 1.5 1.5 1.0 6.6

06/09/10 9.2 12.7 0.9 <0.6 0.6 5.6 1.5

06/15/10 9.0 13.0 0.9 0.6 0.6 5.0 1.6

06/22/10 7.8 0.9 3.1 4.1 1.3

06/29/10 7.3 4.1

07/07/10 5.3 0.7 1.1 3.3

07/13/10 3.5 3.8 7.8 0.9 1.0 3.1

07/20/10 4.5 3.9 6.2 <0.6 0.9 0.9 2.9 1.3

07/27/10 4.9 7.0 5.2 2.0 1.8 3.2

08/04/10 2.8 3.8 4.1 <0.6 3.0 0.9 1.7

08/11/10 2.2 1.3 1.6 3.4 1.7 2.1

08/19/10 6.5 0.8 1.1 1.8 4.0 2.4 2.3 2.3

08/24/10 1.9 0.9 <0.6 1.4 3.6 1.4 1.8

09/01/10 4.8 <0.6 3.4 <0.6

09/08/10 2.2 2.9 1.7

09/14/10 2.4 1.2 1.4

09/21/10 1.7 <0.6 1.1

09/29/10 2.4 0.7 0.9 1.3 <0.6 <0.6 1.1 4.2

10/05/10 4.3 1.2 <0.6 1.1 <0.6 1.5 4.6

10/12/10 3.3 <0.6 0.8 0.9 <0.6 1.4 4.0

10/19/10 3.0 <0.6 1.3 1.0 1.2 3.5

10/27/10 2.8 0.7 0.7 0.7 <0.6 1.3 1.9

11/03/10 2.1 <0.6 <0.6 <0.6 <0.6 0.9 1.4

11/09/10 2.4 0.8 0.8 <0.6 <0.6 <0.6 1.0

11/16/10 7.0 1.1 1.0 1.2 <0.6 0.7 1.3

11/23/10 2.1 <0.6 <0.6 0.7 <0.6 <0.6 <0.6

12/07/10 3.2 0.9 0.8 0.9 0.88 1.18

12/14/10 3.6 1.7 1.0 1.3 0.8 1.4

01/11/11 <0.6 <0.6 0.6 <0.6 <0.6 <0.6

01/18/11 6.4 0.8 0.7 <0.6 0.7 0.9 0.8

01/26/1102/01/11 4.9 <0.6 <0.6 <0.6 <0.6 <0.6

02/08/11 3.1 <0.6 <0.6 <0.6 0.9 <0.6 <0.6

02/16/11 2.3 <0.6 <0.6 <0.6 1.0 <0.6 <0.6

02/23/11 1.8 <0.6 <0.6 <0.6 1.1 0.8

03/01/11 1.8 0.7 0.8 <0.6 1.6 <0.6 <0.6

03/08/11 6.1 <0.6 <0.6 0.7 0.9 <0.6

03/15/11 <0.6 <0.6 <0.6 0.6 0.6

03/30/11 1.1 <0.6 <0.6 <0.6 <0.6 <0.6 <0.6

04/06/11 1.2 <0.6 <0.6 <0.6 <0.6 0.6 <0.6

04/19/11 1.1 <0.6 <0.6 <0.6 <0.6 <0.6 <0.6

04/26/11 1.7 <0.6 <0.6 <0.6 <0.6 0.7

05/04/11 1.7 <0.6 <0.6 <0.6 <0.6 <0.6

05/10/11 2.5 0.8 <0.6 <0.6 <0.6 0.644

05/17/11 2.3 <0.6 <0.6 <0.6 <0.6 0.639

05/25/11 1.9 <0.6 <0.6 <0.6 0.6 <0.6

06/02/11 2.3 <0.6 <0.6 <0.6 1.0 <0.6

06/08/11 3.2 <0.6

06/14/11 2.1 <0.6 <0.6 <0.6 1.9 <0.6

06/21/11 <0.6 0.7 <0.6 <0.6 2.1 <0.6

06/28/11 5.7 <0.6 <0.6 <0.6

07/07/11 4.5 <0.6 <0.6 <0.6 0.9 1.2

07/15/11 0.5 <0.6

07/20/11 4.2 1.0 0.8 0.8 1.5 1.1

07/27/11 3.0 <0.6 <0.6 <0.6 <0.6

08/03/11 3.0 0.6 <0.6 <0.6 <0.6

08/09/11 3.1 <0.6 <0.6 <0.6 1.4

08/16/11 2.7 0.7 <0.6 <0.6 1.5

08/23/11 3.6 <0.6 <0.6 <0.6 1.7

08/30/11 2.3 <0.6 <0.6 <0.6 1.6

09/07/11 <0.6 <0.6 <0.6

09/13/11 <0.6 <0.6


Depth Profile (Figure 5-1)Depth 0 5 10 15 20 25 30 35Avg TN 2.9 0.6 0.5 0.6 1.4 0.8 1.0 1.2

Data Rage 8/11/10 (first recycled water at 20-foot lysimeter) to 9/13/11 (last day of start-up period)


Total Nitrogen(mg/L)

DateLysimeter Depth (ft bgs)

Page 1 of 1

Table 4-5San Sevaine 5: Monitoring Well SS-1/1 Water Quality Results

EC TOC NH3-N NO2-N NO3-N TKN TNDate µmhos/cm mg/L mg/L mg/L mg/L mg/L mg/L

11/30/09 360 0.33 <0.1 0.0 1.7 <0.5 1.7

05/12/10 340 0.39 <0.1 0.1 1.8 <0.5 1.9

08/24/10 332 0.16 <0.1 0.1 2.5 0.9 3.5

10/13/10 325 0.12 <0.1 0.2 1.9 <0.5 2.1

02/08/11 315 0.29 <0.1 0.1 1.8 <0.5 1.9

05/19/11 310 0.60 <0.1 0.1 2.0 <0.5 2.1

08/01/11 310 0.11 <0.1 0.1 0.4 <0.5 0.5

Page 1 of 1

Table 5-1 San Sevaine 5: SAT Removal Efficiencies for TOC and TN

Recycled Water Tracking EventsEvent Date Notes

Start of RW Recharge in Basin 07/09/10 unsaturatedFirst Arrival of RW Recharge at 15-ft Lysimeter 08/19/10 41 days after start of RW rechargeFirst Arrival of RW Recharge at 20-ft Lysimeter 08/24/10 46 days after start of RW rechargeResume RW after paused for storms 01/18/11 saturated, 193 days of rechargeResumed Arrival of RW Recharge at 15-ft Lysimeter 03/01/11 42 days travel timeResumed Arrival of RW Recharge at 20-ft Lysimeter 03/15/11 56 days travel timeResume RW after paused for storms 05/16/11 saturated, 311 days of rechargeResumed Arrival of RW Recharge at 15-ft Lysimeter 07/27/11 72 days travel timeResumed Arrival of RW Recharge at 20-ft Lysimeter est. 8/10/11 estimated min. 86 days travel timeEnd of Start-Up Period 08/30/11

20-Week Running Averaging DatesStart of Averaging Period, 15-foot Lysimeter Data 04/12/11 20 weeks prior to end of Start-Up PeriodStart of Averaging Period, Surface Water Data 01/30/11 72 days prior to aboveStart of Averaging Period, 20-foot Lysimeter Data 04/12/11 20 weeks prior to end of Start-Up PeriodStart of Averaging Period, Surface Water Data 01/16/11 86 days prior to above

Surface Water LysimeterTOC (mg/L) TOC (mg/L)

15-Foot Lysimeter 7.64 2.85 63%






The 20‐sample running average for the 20‐foot lysimeter was used for determining the maximum RWC limit.

Surface Water LysimeterTN (mg/L) TN (mg/L)

15-Foot Lysimeter 3.0 <0.6 81%






20-Week Running Average (at end of the Start-up Period

SAT Removal Efficiency for TOC

SAT Removal Efficiency for TN

20-Sample running Average (at end of the Start-up Period

20-Sample running Average (at end of the Start-up Period

SAT Eff. (%)

SAT Eff. (%)

Full Start-Up Period Average(post RW arrival at 20 feet)

20-Week Running Average (at end of the Start-up Period

Full Start-Up Period Average(post RW arrival at 20 feet)

Page 1 of 1

Table 7-1RWC Management Plan for San Sevaine Basins 1 Through 5

(120-month averaging period)Calculation of Recycled Water Contribution (RWC) from Historical Diluent Water (DW) and Recycled Water (RW) Deliveries

DateNo. Mos.



DW Total(AF)

DW 120-Month Total

(AF)RW (AF)

RW 120-Month Total

(AF)


RWC

Perio

d

2005/06 Jul '05 -60 0. 468.7 468.7 469 0. 0 469 0%Aug '05 -59 0. 212.5 212.5 681 0. 0 681 0%Sep '05 -58 0. 558. 558. 1239 0. 0 1239 0%Oct '05 -57 20. 555.2 575.2 1814 0. 0 1814 0%Nov '05 -56 0. 1142.2 1142.2 2957 0. 0 2957 0%Dec '05 -55 23. 963.3 986.3 3943 0. 0 3943 0%Jan '06 -54 24. 944.3 968.3 4911 0. 0 4911 0%Feb '06 -53 136.1 987.5 1123.6 6035 0. 0 6035 0%Mar '06 -52 543.8 420.3 964.1 6999 0. 0 6999 0%Apr '06 -51 1187. 0. 1187. 8186 0. 0 8186 0%May '06 -50 138. 1247.8 1385.8 9572 0. 0 9572 0%Jun '06 -49 0. 949. 949. 10521 0. 0 10521 0%

2006/07 Jul '06 -48 0. 15.4 15.4 10536 0. 0 10536 0%Aug '06 -47 0. 1029.7 1029.7 11566 0. 0 11566 0%Sep '06 -46 0. 1006.4 1006.4 12572 0. 0 12572 0%Oct '06 -45 0. 1010.7 1010.7 13583 0. 0 13583 0%Nov '06 -44 3. 562.3 565.3 14148 0. 0 14148 0%Dec '06 -43 60.3 958.5 1018.8 15167 0. 0 15167 0%Jan '07 -42 36.4 899.8 936.2 16103 0. 0 16103 0%Feb '07 -41 76.2 266. 342.2 16445 0. 0 16445 0%Mar '07 -40 5.3 0. 5.3 16451 0. 0 16451 0%Apr '07 -39 3. 0. 3. 16454 0. 0 16454 0%May '07 -38 31. 0. 31. 16485 0. 0 16485 0%Jun '07 -37 30. 0. 30. 16515 0. 0 16515 0%

2007/08 Jul '07 -36 0. 0. 0. 16515 0. 0 16515 0%Aug '07 -35 0. 0. 0. 16515 0. 0 16515 0%Sep '07 -34 2. 0. 2. 16517 0. 0 16517 0%Oct '07 -33 6. 0. 6. 16523 0. 0 16523 0%Nov '07 -32 37. 0. 37. 16560 0. 0 16560 0%Dec '07 -31 75. 0. 75. 16635 0. 0 16635 0%Jan '08 -30 553. 0. 553. 17188 0. 0 17188 0%Feb '08 -29 29. 0. 29. 17217 0. 0 17217 0%Mar '08 -28 0. 0. 0. 17217 0. 0 17217 0%Apr '08 -27 0. 0. 0. 17217 0. 0 17217 0%May '08 -26 47. 0. 47. 17264 0. 0 17264 0%Jun '08 -25 0. 0. 0. 17264 0. 0 17264 0%

2008/09 Jul '08 -24 0. 0. 0. 17264 0. 0 17264 0%Aug '08 -23 0. 0. 0. 17264 0. 0 17264 0% L

Sep '08 -22 0. 0. 0. 17264 0. 0 17264 0% A

Oct '08 -21 0. 0. 0. 17264 0. 0 17264 0% C

Nov '08 -20 8. 0. 8. 17272 0. 0 17272 0% I

Dec '08 -19 86. 0. 86. 17358 0. 0 17358 0% R

Jan '09 -18 16. 0. 16. 17374 0. 0 17374 0% O

Feb '09 -17 107. 0. 107. 17481 0. 0 17481 0% T

Mar '09 -16 8. 0. 8. 17489 0. 0 17489 0% S

Apr '09 -15 0. 0. 0. 17489 0. 0 17489 0% I

May '09 -14 0. 0. 0. 17489 0. 0 17489 0% H

Jun '09 -13 0. 0. 0. 17489 0. 0 17489 0%2009/10 Jul '09 -12 0. 0. 0. 17489 0. 0 17489 0%

Aug '09 -11 0. 0. 0. 17489 0. 0 17489 0%Sep '09 -10 0. 0. 0. 17489 0. 0 17489 0%Oct '09 -9 56. 0. 56. 17545 0. 0 17545 0%Nov '09 -8 21. 0. 21. 17566 0. 0 17566 0%Dec '09 -7 334. 0. 334. 17900 0. 0 17900 0%Jan '10 -6 290. 0. 290. 18190 0. 0 18190 0%Feb '10 -5 223. 0. 223. 18413 0. 0 18413 0%Mar '10 -4 16. 0. 16. 18429 0. 0 18429 0%Apr '10 -3 53. 0. 53. 18482 0. 0 18482 0%May '10 -2 0. 0. 0. 18482 0. 0 18482 0%Jun '10 -1 0. 0. 0. 18482 0. 0 18482 0%

2010/11 Jul '10 0 0. 0. 0. 18482 50. 50 18532 0%Aug '10 1 0. 0. 0. 18482 44. 94 18576 1% P

Sep '10 2 0. 0. 0. 18482 42. 136 18618 1% U

Oct '10 3 95. 0. 139. 234. 18716 73. 209 18925 1% -

Nov '10 4 81. 0. 139. 220. 18936 13. 222 19158 1% T

Dec '10 5 577. 0. 139. 716. 19652 32. 254 19906 1% R

Jan '11 6 13. 0. 139. 152. 19804 72. 326 20130 2% A

Feb '11 7 143. 0. 139. 282. 20085 0. 326 20411 2% T

Mar '11 8 133. 0. 139. 272. 20357 0. 326 20683 2% S

Apr '11 9 0. 0. 139. 139. 20496 0. 326 20822 2%May '11 10 7. 537.9 139. 683.9 21180 36. 362 21542 2%Jun '11 11 0. 1169.2 173. 1342.2 22522 34. 396 22918 2%

Page 1 of 3


RWC Management Plan for San Sevaine Basins 1 Through 5(120-month averaging period)

Calculation of Recycled Water Contribution (RWC) from Historical Diluent Water (DW) and Recycled Water (RW) Deliveries

DateNo. Mos.



DW Total(AF)

DW 120-Month Total

(AF)RW (AF)

RW 120-Month Total

(AF)


RWC

Perio

d

2011/12 Jul '11 12 0. 1010.7 173. 1183.7 23706 113. 509 24215 2% Start

Aug '11 13 0. 11.2 173. 184.2 23890 90. 599 24489 2% Up

Sep '11 14 0. 205.6 173. 378.6 24269 0. 599 24868 2%Oct '11 15 39. 0. 173. 212. 24481 0. 599 25080 2% Hist-

Nov '11 16 32. 0. 173. 205. 24686 0. 599 25285 2% orical

Dec '11 17 20. 0. 173. 193. 24879 0. 599 25478 2%Jan '12 18 0. 173. 173. 25052 135. 734 25786 3%Feb '12 19 0. 173. 173. 25225 135. 869 26094 3%Mar '12 20 115. 173. 288. 25513 0. 869 26382 3%Apr '12 21 249. 173. 422. 25935 0. 869 26804 3%May '12 22 43. 173. 216. 26151 80. 949 27100 4%Jun '12 23 6. 173. 179. 26330 135. 1084 27414 4%

2012/13 Jul '12 24 0. 173. 173. 26503 135. 1219 27722 4%Aug '12 25 0. 173. 173. 26676 135. 1354 28030 5%Sep '12 26 0. 173. 173. 26849 135. 1489 28338 5%Oct '12 27 30. 173. 203. 27052 100. 1589 28641 6%Nov '12 28 25. 173. 198. 27250 0. 1589 28839 6% D

Dec '12 29 193. 173. 366. 27616 0. 1589 29205 5% E

Jan '13 30 155. 173. 328. 27944 135. 1724 29668 6% N

Feb '13 31 119. 173. 292. 28236 135. 1859 30095 6% N

Mar '13 32 115. 173. 288. 28524 0. 1859 30383 6% A

Apr '13 33 249. 173. 422. 28946 0. 1859 30805 6% L

May '13 34 43. 173. 216. 29162 80. 1939 31101 6% P

Jun '13 35 6. 173. 179. 29341 135. 2074 31415 7%2013/14 Jul '13 36 0. 173. 173. 29514 135. 2209 31723 7%

Aug '13 37 0. 173. 173. 29687 135. 2344 32031 7%Sep '13 38 0. 173. 173. 29860 135. 2479 32339 8%Oct '13 39 30. 173. 203. 30063 100. 2579 32642 8%Nov '13 40 25. 173. 198. 30261 0. 2579 32840 8%Dec '13 41 193. 173. 366. 30627 0. 2579 33206 8%Jan '14 42 155. 173. 328. 30955 135. 2714 33669 8%Feb '14 43 119. 173. 292. 31247 135. 2849 34096 8%Mar '14 44 115. 173. 288. 31535 0. 2849 34384 8%Apr '14 45 249. 173. 422. 31957 0. 2849 34806 8%May '14 46 43. 173. 216. 32173 80. 2929 35102 8%Jun '14 47 6. 173. 179. 32352 135. 3064 35416 9%

2014/15 Jul '14 48 0. 173. 173. 32525 135. 3199 35724 9%Aug '14 49 0. 173. 173. 32698 135. 3334 36032 9%Sep '14 50 0. 173. 173. 32871 135. 3469 36340 10%Oct '14 51 30. 173. 203. 33074 100. 3569 36643 10%Nov '14 52 25. 173. 198. 33272 0. 3569 36841 10%Dec '14 53 193. 173. 366. 33638 0. 3569 37207 10%Jan '15 54 155. 173. 328. 33966 135. 3704 37670 10%Feb '15 55 119. 173. 292. 34258 135. 3839 38097 10%Mar '15 56 115. 173. 288. 34546 0. 3839 38385 10%Apr '15 57 249. 173. 422. 34968 0. 3839 38807 10%May '15 58 43. 173. 216. 35184 80. 3919 39103 10%Jun '15 59 6. 173. 179. 35363 135. 4054 39417 10%



Page 2 of 3


RWC Management Plan for San Sevaine Basins 1 Through 5(120-month averaging period)

Calculation of Recycled Water Contribution (RWC) from Historical Diluent Water (DW) and Recycled Water (RW) Deliveries

DateNo. Mos.



DW Total(AF)

DW 120-Month Total

(AF)RW (AF)

RW 120-Month Total

(AF)


RWC

Perio

d



2019/20 Jul '19 108 0. 173. 173. 30091 135. 8149 38240 21%Aug '19 109 0. 173. 173. 30264 135. 8284 38548 21%Sep '19 110 0. 173. 173. 30437 135. 8419 38856 22%Oct '19 111 30. 173. 203. 30584 100. 8519 39103 22% D

Nov '19 112 25. 173. 198. 30761 0. 8519 39280 22% E

Dec '19 113 193. 173. 366. 30793 0. 8519 39312 22% N

Jan '20 114 155. 173. 328. 30831 135. 8654 39485 22% N

Feb '20 115 119. 173. 292. 30900 135. 8789 39689 22% A

Mar '20 116 115. 173. 288. 31172 0. 8789 39961 22% L

Apr '20 117 249. 173. 422. 31541 0. 8789 40330 22% P

May '20 118 43. 173. 216. 31757 80. 8869 40626 22%Jun '20 119 6. 173. 179. 31936 135. 9004 40940 22%



Notes:

DW = Diluent Water; Total DW is the sum of Storm Water & Local Runoff (SW), Imported Water from the State Water Project (MWD), and groundwater underflow.RW = Recycled WaterRWC = 120-month running total of recycled water / 120-month running total of all diluent and recycled water. While an RWC calculation is provided starting on the first month of RW recharge, 120 months of data may not be available until 10 years of recharge operations.RWC maximum = 0.5 mg/L / the Running Average of Total Organic Carbon (TOC) determined from a recharge site's start-up period

Page 3 of 3

FIGURES

LACounty

San BernardinoCounty

RiversideCounty

OrangeCounty

Santa Ana

Los Angeles

San Bernardino

Chino Hills

JurupaMountai

ns

San Gabriel Mountains

EtiwandaDebris Basin

SanSevaineCreekEastEtiwandaCreek

60

10

15

210

71

Ely

Turner

Grove

Riverside Drive

Holt Blvd

CentralAve

Euclid

Ave

Mission Blvd

Bellegrav

e Avenue

Limonite Avenue

Etiw

anda

Ave

Haven

Ave

Foothill Blvd

Missio

SanAntonio

Ck

ChinoCk

Day

Creek

SantaAna

Cucamonga

Creek

Jurupa RP3

LowerDay

Declez

Victoria

Brooks Street

San Sevaine

Hickory

Upland Banana

College Heights

7th & 8th StreetMontclair

Figure 1-1

Chino Basin Recycled WaterGroundwater Recharge Programs

Main Map Features

Non-program basins

Rivers and Streams

0 2 4Miles

0 4 8Kilometers

Basin Locations

Recharge Basins in the Recycled WaterGroundwater Recharge Program

acampbel

Polygon

!HMW-SV1

Diversion Pipe

StormDrain Inlet

StormDrain Inlets

Etiwand a C han nel

Lysimeters

San Sevain e Ch ann el

R a n c h oC u c a m o n g a

Cher

ry A

venu

e

F o n t a n a

StormDrain Inlet

Su m mi t Av en u e

1

2

3

4

5RWTurnout

San Savaine Creek

§̈¦210

§̈¦15

O

Figure 2-1Location of Facilites atSan Sevaine Basins 1-5

Recycled Water Pipeline

0 1,000500 Feet

0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011EC

(umho

s/cm

)

SS5 Surface Water SS5‐LYS‐05

SS5‐LYS‐10 SS5‐LYS‐15



RW Recharge Initiated End of Start‐Up Period

Recycled Water Delivery Storm Water Delivery

FIGURE 4-1aSAN SEVAINE 5 LYSIMETERS

ELECTRICAL CONDUCTIVITY TIME SERIES

0

500

1,000

1,500

2,000

2,500

3,000

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011EC

(umho

s/cm

)

SS5 Surface Water

SS5‐LYS‐15

SS5‐LYS‐20

SS‐1/1

RW Recharge Initiated

End of Start‐Up Period

Recycled Water Delivery

Storm Water Delivery

FIGURE 4-1bSAN SEVAINE 5 MONITORING WELL SS-1/1ELECTRICAL CONDUCTIVITY TIME SERIES

0

2

4

6

8

10

12

14

16

18

20

22

24

26

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011TO

C (m

g/L)





RW Recharge Initiated End of Start‐Up Period



TOTAL ORGANC CARBON TIME SERIES

0

2

4

6

8

10

12

14

16

18

20

22

24

26

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011TO

C (m

g/L)

SS5 Surface Water

SS5‐LYS‐15

SS5‐LYS‐20

SS‐1/1

RW Recharge Initiated




FIGURE 4-2bSAN SEVAINE 5 MONITORING WELL SS-1/1

TOTAL ORGANC CARBON TIME SERIES

0

2

4

6

8

10

12

14

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011TN

(mg/L)





RW Initiated End of Start‐Up Period



TOTAL NITROGEN TIME SERIES

0

2

4

6

8

10

12

14

05/02/2010

05/30/2010

06/27/2010

07/25/2010

08/22/2010

09/19/2010

10/17/2010

11/14/2010

12/12/2010

01/09/2011

02/06/2011

03/06/2011

04/03/2011

05/01/2011

05/29/2011

06/26/2011

07/24/2011

08/21/2011

09/18/2011TN

(mg/L)

SS5 Surface Water

SS5‐LYS‐15

SS5‐LYS‐20

SS‐1/1

RW Initiated




FIGURE 4-3bSAN SEVAINE 5 MONITORING WELL SS-1/1

TOTAL NITROGEN TIME SERIES

0

5

10

15

20

25

30

350.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

Dep

th Below

Groun

d Su

rface at th

e Bo

ttom

of the

Basin (feet)

Concentration (mg/L)

TOC

TN

FIGURE 5-1SAN SEVAINE 5

DEPTH PROFILE OF AVERAGE TOC AND TN

The 25‐, 30‐, and 35‐foot Lysimeter samples are not representative of recharge water based on trends in electrical conductivity.

0%

5%

10%

15%

20%

25%

30%

35%-60 -48 -36 -24 -12 0 12 24 36 48 60 72 84 96 108 120

0

100

200

300

400

500

600

700Ap

r '05

Apr '

06

Apr '

07

Apr '

08

Apr '

09

Apr '

10

Apr '

11

Apr '

12

Apr '

13

Apr '

14

Apr '

15

Apr '

16

Apr '

17

Apr '

18

Apr '

19

Apr '

20

RW

C

Months Since Initial Recycled Water DeliveryD

eliv

ered

Wat

er V

olum

e (A

F/m

onth

)

Historical Diluent Water Recharge

Historical Recycled Water Recharge

Used Groundwater Underflow Credit

Forecast Stormwater Recharge

Planned Recycled Water Recharge

Planned Groundwater Underflow Credit

RWC maximum (proposed)

RWC Actual

RWC Projected

HISTORICAL RECHARGE PLANNED RECHARGE

FIGURE 7-1SAN SEVAINE BASINS 1 THROUGH 5

RWC MANAGEMENT PLAN

APPENDIX A

LYSIMETER AND MONITORING WELL CONSTRUCTION DRAWINGS

Results of Monitoring Well,Drilling, Construction,

Development and Testing

Ground Surface

Not to scale

Dept

h be

low

grou

nd s

urfa

ce (f

t)

20-May-10

As Built DiagramMW-SSV1

Figure 5

Well Head Completion DetailPlan View

Ground Surface

#60 fine sand

Hydrated bentonite pellet seal

Cement bentonite grout seal

2-inch schedule 80 PVC blank casing

4.25-inch I.D. Stainless Steelblank casing with welded end cap

6 x 20 filter pack

14.75-inch diameter borehole

0.060-inch Stainless Steelcontinuous wirewrap screen

#60 fine sand

Hydrated bentonite pellet seal

6 x 20 filter pack

2 x 12 filter pack

0.020-inch slot PVC screen

770

700

690

630

550

540

530

310

320

260

240

230

220

50

Well Cover 5-ft (approx)

A A’

1-ft bgs

5-ft (approx)

1-ft (approx)

#4 Bars at 1’- 6‘’ o.c. each way

Class A concrete

Class A concrete

8-inch

Section A-A’

Traffic-Rated 1-ft diameterwell cover

10.3-sack cement

20-inch diameter, 3/8-inch thick mild steelconductor casing

4.25-inch I.D. Stainless Steel blank casing

36-inch diameter conductor borehole

2-inch schedule 80 PVC blank casingwith end cap

Note: ft bgs = Feet below ground surface.

X:

Y:

Drilling Contractor:

Drilling Method:

Borehole Diameter

Location of boring/ Well:

Client:

Borehole/ Well No:

Project Number:

Project:

Start Date:

Logged By:

Finish Date:

Sample DescriptionDepth GraphicLog

Lithologic Log

Color

Appendix A

Groundwater ConsultingThomas Harder & Co.

Page 1 of 6

0

-20

-40

-60

-80

-100

Best Drilling and Pump, Inc.

Fluid Reverse14 3/4 ''

117° 30.132

34° 08.314

IEUA

MW-SSV108-010-101

Monitoring Well Installation

11/05/0912/10/09

AH

SAND with SILT: Fine to medium grained sand; trace coarse grained sand; trace fine to coarsegravel to 35 mm; subrounded to subangular; 10 to 15 percent silt; granitic and metamorphic.

SAND: Fine to coarse grained sand; trace fine to coarse gravel; to 55 mm; angular; 5 percent silt;granitic and metamorphic.

SAND with SILT: Fine grained sand; with medium grained sand; trace coarse grained sand; tracefine to coarse gravel to 35 mm; subrounded to subangular; 10-15 percent silt; granitic andmetamorphic.

SAND with SILT: Same as above; increasing silt content.

SILTY SAND: Fine grained sand; some medium grained sand; trace coarse grained sand; tracefine to coarse gravel to 25 mm; subrounded; 15 percent silt; granitic and metamorphic.

SAND: Medium to coarse grained sand; trace fine grained sand; rounded; 99 percent quartz.Visually similar to sand that was poured into conductor casing to prevent grout intrusion.

SAND: Medium to coarse grained sand; with fine grained sand; some fine to coarse gravel to 35mm; subangular to angular; metamorphic.

SAND: Fine to coarse grained sand; some fine to coarse gravel to 50 mm; subangular to angular;micaceous; metamorphic.

SAND: Same as above.

SAND: Same as above; gravel to 30 mm.

SP-SM

SW

SP-SM

SM

SP

SW

7.5YR 5/4Brown

7.5YR 5/4Brown

7.5YR 5/4Brown

7.5YR 5/4Brown

7.5YR 5/4Brown

5YR 6/4Light Reddish

Brown

5YR 4/2Dark Reddish

Brown

5YR 5/4ReddishBrown

5YR 4/2Dark Reddish

Brown

5YR 6/3Light Reddish

Brown

Borehole/ Well No.:Client:

Project No.:

Borehole Lithologic LogAppendix A

Sample DescriptionGraphicDepth ColorLog


Page 2 of 6

-120

-140

-160

-180

-200

-220

-240

MW-SSV1IEUA08-010-101

CLAYEY SAND: Fine to medium grained sand; with coarse grained sand; trace fine to coarsegravel to 30 mm; angular; 40 percent clay; metamorphic. CLAY: Medium plasticity; high drystrength; no dilatency.

CLAYEY SAND: Same as above; 30-40 percent clay.

CLAYEY SAND: Same as above; 25-35 percent clay.

CLAYEY SAND/ SANDY CLAY: 50 percent clay; 50 percent fine to medium grained sand; somecoarse grained sand; subrounded to subangular; metmorphic. CLAY: High plasticity; high drystrength; slow dilatency.

SAND with CLAY: Fine to medium grained sand; trace coarse grained sand; subrounded tosubangular. CLAY: 10 percent of sample; low plasticity; high dry strength; moderate dilatency.

SAND: Fine to coarse grained sand; some fine gravel; subrounded to subangular; metamorphic.CLAY: Less than 5 percent; low plasticity; moderate dilatency.

SAND: Fine to medium grained sand; with coarse grained sand; trace fine to coarse gravel to 35mm; subrounded to subangular; metamorphic. CLAY: Less than 5 percent.

SAND: Fine to coarse grained sand; trace coarse gravel to 35 mm; subrounded to subangular;metamorphic.

SAND: Fine to coarse grained sand; trace coarse gravel to 40 mm; subrounded to subangular;granitic and metamorhpic; less than 1 percent clay.

CLAYEY SAND: Fine to medium grained sand; with coarse grained sand; subrounded tosubangular; 20 percent clay; metamorphic; primarily quartz and feldspar. CLAY: Moderateplasticity; high dry strength; slow dilatency.

SAND: Fine to medium grained sand; trace gravel to 10mm; subrounded to subangular;metamorphic.

CLAYEY SAND/ SAND CLAY: 50 percent clay; 50 percent medium to coarse grained sand; withfine grained sand; subangular; primarily feldspar. CLAY: High plasticity; high dry strength; nodilatency.

CLAYEY SAND: Fine to medium grained sand; some coarse grained sand; subangular; 30-40percent clay; metamorphic. CLAY: High plasticity; high dry strength; no dilatency.

CLAYEY SAND: Medium grained sand; with fine and coarse grained sand; subrounded; 25-35percent clay; metamorphic. CLAY: High toughness; high plasticity; high dry strength; no dilatency.

SC

SC-CL

SP-SC

SW

SP

SW

SC

SP

SC-CL

SC

5YR 4/2Dark Reddish

Brown

5YR 4/3ReddishBrown

5YR 4/2Dark Reddish

Brown

5YR 5/4ReddishBrown

5YR 5/4ReddishBrown

5YR 5/2ReddishBrown

7.5YR 4/4Brown

7.5YR 4/3Brown

7.5YR 3/1Very Dark

Gray

7.5YR 4/2Brown

7.5YR 5/3Brown

7.5YR 5/2Brown

7.5YR 4/3Brown

7.5YR 4/3Brown


Project No.:




Page 3 of 6

-240

-260

-280

-300

-320

-340

-360

-380


CLAYEY SAND: Fine to medium grained sand; some coarse grained sand; trace fine gravel to 15mm; subrounded; 30 percent clay; metamorphic. CLAY: High toughness; high dry strength; highplasticity.

CLAYEY SAND: Same as above.

SAND: Fine to medium grained sand; trace coarse grained sand; trace fine to coarse gravel to 30mm; subrounded to subangular; 5 percent clay; metamorphic. CLAY: High toughness; highplasticity; high dry strength; no dilatency.

CLAYEY SAND: Medium grained sand; with coarse grained sand; some fine grained sand; tracefine gravel to 12 mm; subrounded; 25 percent clay; metamorphic. CLAY: High toughness; highplasticity; high dry strength; no dilatency.



CLAYEY SAND: Same as above; decreasing clay content.

CLAYEY SAND/ SANDY CLAY: 50 percent clay; 50 percent fine to medium grained sand; somecoarse grained sand; subrounded to subangular; metamorphic. CLAY:High toughness, highplasticity; high dry strength; no dilatency.

CLAYEY SAND/ SANDY CLAY: Same as above.

CLAYEY SAND/ SANDY CLAY: 50 percent clay; 50 percent medium to coarse grained sand;some fine grained sand; subrounded to subangular; primarily quartz and feldspar. CLAY: Hightoughness; medium plasticity, high dry strength; no dilatency.

SANDY CLAY: 80-90 percent clay; 10-20 percent medium to coarse grained sand; some finegrained sand; subangular; metamorphic. CLAY: High toughness; moderate plasticity; high drystrength; no dilatency.

SANDY CLAY: 60 percent clay; 40 percent medium grained sand; with fine grained sand; somecoarse grained sand; subrounded to subangular. CLAY: Moderate plasticity; high dry strength; nodilatency; sand and clay occur as a homogenous mixture.

SANDY CLAY: Same as above; increasing coarse sand fraction.

SANDY CLAY: 65-75 percent clay; 25-35 percent medium to coarse grained sand; some finegrained sand; trace fine gravel; angular; metamorphic. CLAY: Moderate plasticity; high drystrength; moderate dilatency; occuring as a homogenous mixture.

SP

SC

SC-CL

CL

7.5YR 3/2Dark Brown

7.5YR 4/3Brown

10YR 4/3Brown

5YR 4/6Yellowish Red


5YR 4/3ReddishBrown

5YR 4/3ReddishBrown

5YR 5/4ReddishBrown

5YR 5/4ReddishBrown

5YR 4/4ReddishBrown


5YR 5/4ReddishBrown

5YR 5/4ReddishBrown

5YR 5/6Strong Brown


Project No.:




Page 4 of 6

-380

-400

-420

-440

-460

-480

-500

-520


CLAYEY SAND: Medium grained sand; with fine grained sand; trace coarse grained sand;subangular; 40 percent clay; metamorphic. CLAY: High dry strength; occuring as clay balls;reddish, clean.

SAND with SILT: Fine to coarse grained sand; trace fine to coarse gravel to 50 mm; 10-15 percentsilt; subangular to angular; metamorphic. CLAY: Less than 1 percent; red; sandy, occuring asballs.

CLAYEY SAND: Medium grained sand; with coarse grained sand; trace fine gravel; angular; 15-20 percent clay; metamorphic; red staining on grains. CLAY: High dry strength; occurs as ahomogenous mixture.


SAND with SILT: Fine to coarse grained sand; trace coarse gravel to 70 mm; 10-15 percent silt;subrounded to subangular; metamorphic. CLAY: Less than 5 percent; medium plasticity;moderate dilatency; sandy, occuring as balls.

SAND with SILT: Same as above, increasing clay content.

SAND with SILT: Same as above.

SANDY CLAY: 80-90 percent clay; 10-20 percent coarse grained sand; with medium grainedsand; trace fine grained sand; some fine gravel; trace coarse gravel to 10 mm. CLAY: Hightoughness; moderate plasticity; high dry strength; no dilatency.

SANDY CLAY: Same as above; 70-80 percent clay.


CLAYEY SAND: Fine to coarse grained sand; trace fine gravel; angular; 30-40 percent clay;metamorphic. CLAY: High dry strength; homogenous mixture; not occuring as balls; reddish.

SANDY CLAY: 80-90 percent clay; 10-20 percent medium grained sand; with coarse grainedsand; some fine grained sand; angular; metamorphic. CLAY: No dilatency; high dry strength; highplasticity; reddish.



SC

SW-SM

SC

SW-SM

CL

SC

CL

7.5YR 4/4Brown

2.5Y 4/4Olive Brown

10YR 4/6Dark

YellowishBrown

7.5YR 5/6Strong Brown

7.5YR 5/4Brown

7.5YR 5/4Brown

7.5YR 4/3Brown

5YR 4/4ReddishBrown

5YR 4/4ReddishBrown

5YR 4/3ReddishBrown

10YR 4/3Brown

10YR 4/3Brown

10YR 4/4Dark

YellowishBrown

10YR 4/4Dark

YellowishBrown


Project No.:




Page 5 of 6

-520

-540

-560

-580

-600

-620

-640




CLAYEY SAND: Medium to coarse grained sand; with fine grained sand; trace fine to coarsegravel to 33 mm; subrounded to subangular; 10 percent silt; 25 percent clay. CLAY: Highplasticity; high dry strength; no dilatency; clean; reddish; occuring as balls.

SILTY SAND: Medium grained sand; with fine grained sand; some coarse grained sand;subrounded to subangular; 15-20 percent silt; metamorphic; less than 1 percent clay.

SILTY SAND with GRAVEL: Medium grained sand; with fine grained sand; with coarse grainedsand; trace fine gravel to 15 mm; subrounded to subangular; 25 percent silt; metamorphic; lessthan 1 percent clay.

SILTY SAND with GRAVEL: Fine to coarse grained sand; with fine to coarse gravel to 20 mm;subrounded to subangular; 25 percent silt; metamorphic.

SILTY SAND with GRAVEL: Same as above. CLAY: Less than 5 percent; occurs as balls; sandy;light brown.

SILTY SAND with GRAVEL: Same as above; gravel to 40 mm.

SILTY SAND with GRAVEL: Same as above. CLAY: Less than 5 percent; high plasticity; nodilatency; light gray to light tan; sandy; occurs as balls.

SILTY SAND: Medium grained sand; with fine grained sand; trace coarse grained sand; tracegravel up to 15 mm; subrounded to angular; 25 percent silt; metamorphic.

SILTY SAND: Same as above. CLAY: Less than 5 percent clay; high plasticity; no dilatency;varies in color; looks like weathered granite; sandy; occuring as balls.

SILTY SAND: Fine to coarse grained sand, trace fine gravel to 10 mm; subangular to angular; 20percent silt; metamorphic. CLAY: Less than 5 percent; high plasticity; no dilatency; varies in color;looks like weathered granite; sandy; occurs as balls.

SANDY CLAY: 75-85 percent clay; 15-25 percent medium grained sand; with coarse grainedsand; some fine grained sand; angular; metamorphic. CLAY: High plasticity; high dry strength; nodilatency; varies in color; sandy; looks like weathered granite.

SILTY SAND with CLAY: Fine to coarse grained sand; with fine gravel; some coarse gravel to 25mm; subangular to angular; 20 percent silt; metamorphic. CLAY: 5-10 percent; moderateplasticity; no dilatency; looks like weathered granite; sandy; occuring as balls

SC

SM

CL

SM

10YR 4/4Dark

YellowishBrown

10YR 4/4Dark

YellowishBrown

2.5Y 5/3Light Olive

Brown

2.5Y 4/3Olive Brown

2.5Y 4/4ReddishBrown

2.5Y 5/4Light Olive

Brown



7.5YR 5/4Brown

7.5YR 5/4Brown


7.5YR 5/4Brown


10YR 6/4Light

Yellowish


Project No.:



Groundwater Consulting

Notes:Grain Size distribution and percentages are approximate.Soil Types classified based on Unified Soil Classification System.

Soil Color based on Munsell Soil Color Charts.

Samples from 0 to 50 feet were collected from bucket auger cuttings.

Page 6 of 6

Thomas Harder & Co.

-660

-680

-700

-720

-740

-760


SILTY SAND: Same as above.

SILTY SAND: Same as above; less than 5 percent clay.

SANDY CLAY: 75-85 percent clay; 15-25 percent fine to medium grained sand; some coarsegrained sand; subrounded to subangular; metamorphic. CLAY: Moderate plasticity; high drystrength; no dilatency; sandy.

CLAYEY SAND: Fine to coarse grained sand; trace fine to coarse gravel to 35 mm; subangular;20 percent clay; metamorphic. CLAY: High plasticity; high toughness; no dilatency; blue to lighttan.


CLAYEY SAND: Same as above; decreasing clay conent.


SANDY CLAY/ CLAYEY SAND: 50 percent clay; 50 percent fine to coarse grained sand;subangular to angular; trace gravel to 20 mm; granitic and metamorphic. CLAY: High plasticity;high dry strength; no dilatency.

SANDY CLAY/ CLAYEY SAND: Same as above.

CLAYEY SAND: Fine to coarse grained sand; trace fine gravel to 15 mm; angular; 35-45 percentclay; granitic; metamorphic; and sedimentary. CLAY: High plasticity; high dry strength; nodilatency; high toughness; various colors.

Sample not recovered. Borehole total depth = 770 ft bgs

CL

SC

SC-CL

SC

Brown10YR 5/4Yellowish

Brown

10YR 5/4Yellowish

Brown

10YR 4/4Dark

YellowishBrown

10YR 4/4Dark

YellowishBrown

10YR 5/4Yellowish

Brown

10YR 5/6Yellowish

Brown

10YR 5/4Yellowish

Brown

10YR 5/6Yellowish

Brown

10YR 5/6Yellowish

Brown

10YR 5/3Brown

Documents

San Sevaine Startup Period Report-final20120208 - Inland Empire Utilities Agency · 2020. 7. 22. · tr (a S th • S th re th ch ar • S de m D • S S 20 S • A ti pr de ef fo