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Memorandum To: Jesse Aviles, EPA RPM, VB/I70 Superfund Site
From: Timothy C. Shangraw
Date: January 25, 2018
Re: POLREP #30 - Vasquez Boulevard/Interstate 70 (VB/I70) Superfund Site, Operable
Unit 2, Removal Action
======================================================================= On behalf of the City and County of Denver (Respondent), Engineering Management Support, Inc. (EMSI) is submitting this Pollution Report (POLREP #30) in accordance with Section 4.c of Appendix C to the Administrative Settlement Agreement and Order on Consent for Removal Action, for the subject Superfund Site (the Site). This report follows the outline detailed in Section 4.c of Appendix C, and contains pertinent new information specified in the Superfund Removal Procedures, Removal Response Reporting: POLREP and On-Scene Coordinator (OSC) Reports (EPA, 1994). Section I – Heading The date, site name, report author, report recipient, and report number are presented above. Section II – Response Information
This reporting period extended from December 1 through 31, 2017 during which time the following activities occurred:
Excavation of Regulated Asbestos-Contaminated Soils (RACS) and hauling to and disposing at the Denver Arapahoe Disposal Site (DADS);
Construction of outlet wing walls and open channel sidewalls through the Coliseum Parking Lot (CPL);
Construction of inlet and outlet wing walls, open channel sidewalls, lateral drain boxes, UV treatment box, Arkins Court transition structure, and outlet rip rap through the Globeville Landing Park (GLP);
Pumping and treatment of groundwater from dewatering zones 1, 2, 3a, and 3b;
On-site and off-site monitoring for air quality, dust, and odors;
Finalizing groundwater flow modeling that evaluated new hydrogeologic conditions observed during construction; and
Preparing Addendum 3 to the Final Design Report (EMSI, 2016a) that proposes leaving sheet piles in place along the south side of the GLO project and eliminating the check dam in the strengthening layer.
Engineering Management
Support, Inc.
Memorandum
POLREP #30
VB/I70, OU2 removal Action
January 25, 2018
Page 2
The volumes of RACS excavated and managed, and the volumes of water pumped, treated, and returned to the South Platte River, are summarized in Table 1.
On-site monitoring for volatile organic compounds (including methane), odor, and visible dust emissions occurred continuously during excavation activities. In addition, monitoring for airborne asbestos fibers proceeded in accordance with Section 5.5 of the Colorado’s Solid Waste Regulations (CSWRs). Due to their overall size, daily monitoring reports for volatile organic compounds, odor, dust, and asbestos are being submitted under separate cover.
Off-Site monitoring by Denver for PM10, airborne lead and arsenic at four locations within the monitoring boundary continued throughout the reporting period. Sampling from these stations occurred every sixth day throughout the month. Results were all below Occupational Safety and Health Administration 8-hour limits and National Ambient Air Quality Standards. Monthly monitoring reports are posted on the Globeville Landing Outfall (GLO) project web site at: https://www.denvergov.org/content/denvergov/en/environmental-health/environmental-quality/land-use-and-planning.html.
As part of the GLO project’s Community Outreach program, a community hotline was operated. No complaints were received during the reporting period. The Community Advisory Group (CAG) held its eleventh meeting on January 9
th. Meeting minutes are posted on the VB/I-70
Superfund Community Advisory Group web site. The next CAG meeting is scheduled for February 13, 2018.
The following project meetings were held in December and earlier this month:
Weekly GLO Project Status Meetings (December 7, 14, and 21, 2017);
EPA monthly progress meeting (December 20, 2017); and
Tour of the GLO Phase 1 and Phase 2 (Pepsi property) projects (January 17, 2018).
Lastly, a 3-week look-ahead Construction Schedule is attached to this POLREP. Section III – Issues, Resolutions, and Planned Activities
Quality Assurance (QA) Audit Report #8 was prepared in December. It involved a day-long independent assessment of environmental monitoring activities by an EMSI representative in accordance with the Section 5.5 of the CSWRs and the Final Materials Management Plan (MMP) (EMSI, 2016b), and comparison of activity observations with those of field personnel from Kleinfelder. Only one deficiency was identified. It was corrected and the audit was closed. A copy of the Audit Report is attached to this POLREP.
Monitoring of treated effluent from the GLO project continued during the reporting period in
accordance with Discharge Permit Number CO0049002. All monitored parameters met
discharge limits during the month.
Memorandum
POLREP #30
VB/I70, OU2 removal Action
January 25, 2018
Page 3
Planned activities for the next reporting period consist of:
Continue construction of wing walls and open channel sidewalls through the CPL and GLP;
Continued construction of lateral drain boxes in the GLP;
Continued construction of outlet structures, transition zones, and riprap in the GLP;
Continued final grading of the drainage channel in preparation for placement of the strengthening layer;
Continued dewatering in zones 1, 2, 3a and 3b;
Continued on-site and off-site monitoring of air quality; and
Submittal of Addendum 3 to the Final Design Report (EMSI, 2016a).
To maintain effective and transparent communication during GLO implementation, EPA and CDPHE
personnel are invited to participate in weekly coordination meetings at Kiewit’s RiNo office. The
next EPA Monthly Status meeting will be held on February 21st at 9:00 am in the Webb building.
Please call Jennifer Luthi (720.865.5432) or me (303.619.5179) if you have any questions. Attachments:
December 2017 Summary of GLO Construction Activities 3-Week Look-Ahead Schedule QA Audit Report # 8 Summary of Effluent and Influent Analytical Results
Table 1 - December 2017 Construction Summary
Current Month QTY QTY to date Comments
EXCAVATION/HAULING
# of days Excavation occurred Globeville park 1 98
# of days Excavation occurred Municipal Landfill 35
Volume of Racs Excavated (CY) 364 89,527 From Globeville Park
Volume of Racs hauled to DADS (CY) 364 89,527 From Globeville Park
Volume of Non-Racs Excavated (CY) 58,969
Volume of Non-Racs stockpiled onsite (CY) 12,606
Volume of Non-Racs hauled to DADS (CY) 46,363
Volume Hauled to Clean Harbors (CY) 0
GROUT AND STONE COLUMNS
number of grout columns installed this month 0 1,091 All Stone and Grout columns are complete
Grout column SPT testing results 0 0 All Stone and Grout columns are complete
number of stone columns installed per month 0 575 All Stone and Grout columns are complete
stone column test results 0 0 All Stone and Grout columns are complete
REMEDIATION DEWATERING AND TREATMENT
LF of underdrain/wick wells installed 650
Volume of water transported and treated at MFEI 1,702,404 25,271,775
Volume of treated water, including dilution, discharged
to S. Platte 1,425,181 25,460,838
Analytical results 0 Nov DMR submitted
CONSTRUCITION DEWATERING
status of permit compliance
LINER INSTALLATION
% complete during the month N/A
QC/QA testing results N/A
Issues and Resolutions N/A
MODCP RESULTS
Daily Methane, Odor, and Dust monitoring reports
Issues and Resolutions
COMMUNITY OUTREACH
Summary of Calls to hotline
Issues and Resolutions
Current Forecast Forecast Forecast Comments
Work
performed byShift
01/2
2
01/2
2
01/2
3
01/2
3
01/2
4
01/2
4
01/2
5
01/2
5
01/2
6
01/2
6
01/2
7
01/2
7
01/2
8
01/2
8
01/2
9
01/2
9
01/3
0
01/3
0
01/3
1
01/3
1
02/0
1
02/0
1
02/0
2
02/0
2
02/0
3
02/0
3
02/0
4
02/0
4
02/0
5
02/0
5
02/0
6
02/0
6
02/0
7
02/0
7
02/0
8
02/0
8
02/0
9
02/0
9
02/1
0
02/1
0
02/1
1
02/1
1
02/1
2
02/1
2
02/1
3
02/1
3
02/1
4
02/1
4
02/1
5
02/1
5
02/1
6
02/1
6
02/1
7
02/1
7
02/1
8
02/1
8
M T W T F Sa Su T W T F Sa Su T W T F Sa Su T W T F Sa Su
1
2 EARTHWORK (Park Channel)
3 Install Tensar & 18" Rock Sta 6+70 to 8+50 Ames 01/05/18 01/22/18 day
4 Install Grouted boulders on Conduit Apron Ames 01/12/18 01/31/18 day
5 remove sheet pile in front of drop inlet Ames 01/19/18 01/26/18 day
6 Grade channel 4+50 to 6+70 Ames 01/29/18 02/02/18 day
7
8
9 OUTFALL CHANNEL
10 Excavate for Grouted boulders drop outlet Ames 01/25/18 01/30/18 day
11 Place grouted boulders drop outlet Ames 01/26/18 02/02/18 day
12 Place bedding and soil rip rap around drop outlet Ames 01/24/18 02/02/18 day
13 Remove sheets by river edge Ames 02/02/18 02/09/18 day
14
15
16 S. LATERAL DRAIN BOX
17 Form Deck sections 1-6 Ames 01/08/18 02/28/18 day
18
19
20
21 N. LATERAL DRAIN BOX
22 F/R/P N. Lateral Walls sections 1-4 Ames 01/02/18 01/25/18 day
23 F/R/P N. Lateral deck sections 1-4 Ames 02/05/18 02/25/18
24
25 EAST PARK WALL
26 F/R/P section 8 East park wall Footings Ames 02/12/18 02/17/18 day
27 F/R/P section 8 East park wall wall Ames 02/20/18 02/28/18 day
28
29 WEST PARK WALL
30 F/R/P West Park wall section 2,4 Walls Ames 01/16/18 01/26/18 day
31
32 N. Coliseum Wall
33
34
35 UV Vault
36 Drive sheets for UV vault shoring Ames 01/31/18 02/09/18 day
37 F/R/D UV vault footing Ames day
38
39 N. Bridge Abutment
40 Finegrade for abutment footing Ames 01/29/18 02/01/18 day
41 F/R/P N. Abutment Footing Ames 02/05/18 02/15/18 day
42
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M
Phase 1A 3 week schedule
Monday, January 22, 2018
Item
Globeville Phase 1ASchedule Title
Current Week
Finish Start Activity Description
M M
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Current Forecast Forecast Forecast Comments
Work
performed byShift
01/2
2
01/2
2
01/2
3
01/2
3
01/2
4
01/2
4
01/2
5
01/2
5
01/2
6
01/2
6
01/2
7
01/2
7
01/2
8
01/2
8
01/2
9
01/2
9
01/3
0
01/3
0
01/3
1
01/3
1
02/0
1
02/0
1
02/0
2
02/0
2
02/0
3
02/0
3
02/0
4
02/0
4
02/0
5
02/0
5
02/0
6
02/0
6
02/0
7
02/0
7
02/0
8
02/0
8
02/0
9
02/0
9
02/1
0
02/1
0
02/1
1
02/1
1
02/1
2
02/1
2
02/1
3
02/1
3
02/1
4
02/1
4
02/1
5
02/1
5
02/1
6
02/1
6
02/1
7
02/1
7
02/1
8
02/1
8
M T W T F Sa Su T W T F Sa Su T W T F Sa Su T W T F Sa SuM
Phase 1A 3 week schedule
Monday, January 22, 2018
Item
Globeville Phase 1ASchedule Title
Current Week
Finish Start Activity Description
M M
43 S. Bridge Abutment
44 F/R/P Abutment wing walls Ames
45
46 Arkins outlet
47 F/R/P South Wing walls A1, J1, K1 Ames 01/17/18 01/26/18 day
48 Drive sheets along Arkins Ames 01/24/18 01/29/18 day
49 Excavate for North Wing wall footings Ames 01/29/18 02/02/18 day
50 F/R/P North Wing walls Footings A1, J1, K1 Ames 02/05/18 02/20/18 day
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
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Page 1
Engineering Management
Support, Inc.
QA Audit Report #8
To: Matt Ceresa, Kiewit,
From: Tim Shangraw, EMSI
cc:
Jennifer Luthi, DEH; Steve Gonzales, DEH; Bret Banwart (DPW); Brian McLaren (DPW); and Patrick Riley (DPW)
Date: January 4, 2018
Re:
Audit of Kleinfelder’s Environmental Monitoring Activities on December 6, 2017 at Globeville Landing Outfall Project
On December 6, 2017, a representative from Engineering Management Support, Inc. (EMSI) conducted a day-long QA audit of environmental monitoring activities at the Globeville Landing Outfall (GLO) project for consistency with Section 5.5 of Colorado’s Solid Waste Regulations (CSWRs) and the Final Materials Management Plan (MMP) (EMSI, 2016). Mr. David Matteocci with Matteocci & Associates, LLC represented EMSI and Ms. Lanaia Carveth and Mr. Billy Godby represented Kleinfelder.
With respect to Section 5.5 of the CSWRs, the audit involved an independent inspection of asbestos handling activities, identifying the types and frequencies of suspect material encountered, documentation of findings, sampling, assessment of regulated work areas (RWAs) and how they were protected, who entered the RWAs and what personal protection they were wearing, decontamination procedures, observations of possible visible emissions from RWAs, and other possible indicators of impacted soils.
With respect to the MMP, the audit involved an independent inspection of environmental screening activities of excavated materials, as well as odor and dust control monitoring.
The EMSI representative completed his own environmental observations and documentation of the day’s monitoring activities performed by Kleinfelder, and excavations performed by Ames and its subcontractors. He then met with Kleinfelder personnel to review their observations and logs, and discussed discrepancies. Any discrepancies or omissions were resolved and documented in both EMSI’s logs and Kleinfelder’s logs. Copies of EMSI’s logs are attached to this Audit Report. Due to their size, copies of Kleinfelder’s logs are submitted under separate cover.
AUDIT FINDINGS
One minor issue was identified, and two recommendations were added in the field audit report on page 5 of 5.
QA Audit Report #8, GLO Project January 4, 2018
Page 2
Billy Godby’s paperwork had listed J3 and J4 in his descriptions and notes, but was not highlighted on the grid map.
ACTION REQUIRED
Add J3 and J4 to grid map on Billy Godby’s paperwork. Kleinfelder completed this action. Therefore, this audit is closed.
Attachments
Bulk Sample References Use (ID,RES#) in ACSR- Rows 1A/1B
Use ID’s and RES#’s to search for picture in Bulk Sample Log document to verify that material has been sampled
Commonly Identified Debris/ Suspect Materials (Non-detect): Red Brick (white mortar): (GLO-171127-J4-RB2, RES#395261) Yellow Brick: (GLO-171006-PL-1, RES#391561) Plaster-White (non-granular): (GLO-171127-J4-DW1, RES#395261) Tan ceramic tile (stripe indentation): (GLO-171127-J4-C1, RES#395261) Yellow fire brick: (GLO-171006-PL-1, RES#391561) Light Weight Concrete- (GLO-171006-LWC-1, RES#391561) White(ish) insulation (fiberglass): (GLO-170906E4-MM1, RES#389239) Green painted concrete: (GLO-170828-K12-C1, RES#388403) Orange fire brick (GLO-GR09-04, RES#373941) ** Re-sample if seen Hexagonal white ceramic tile: (GLO-170828-I7-PT1, RES#388403) Brown fiberboard w/ off-white paint: (GLO-171017-J4-3, RES#392363) Commonly Identified Suspect Materials (ACM): Tile- Gray w/ black adhesive (ACM): (GLO-170725-FT4, RES#385419) Black floor tile w/ white streak pattern (ACM): (GLO-170725-J4-FT1, RES#385332) Transite- Large fibrous brick (ACM): (GLO-170714-T1, RES#384551) Green floor tile w/ white streak pattern (ACM): (GLO-GR11-07, RES#373491) Thermal System Insulation (ACM): (GLO-171006-TSI-1, RES#391561) Black floor tile (ACM): (GLO-171127-J4-FT3, RES#395261) White checkered tan linoleum (ACM): (GLO-171127-J4-FT1, RES#395261) Transite Siding (ACM): (GLO-171127-J4-FT4, RES#395261)
Historical Influent and Effluent Water Quality, GLO Water Treatment Plant
Influent* Effluent** Influent* Effluent** Influent* Effluent** Influent* Effluent** Influent* Effluent** Influent* Effluent** Influent* Effluent** Influent* Effluent**
Flow Rate (monthly ave) gpm Continuous 100 N/R 95.5 N/R 96.8 N/R 91.2 N/R 84.5 N/R 54.6 N/R 38.5 N/R 32.9 N/R 31.9
pH standard units 3 days/wk 6.5 - 9 N/R 7.05 - 7.98 N/R 7.53 - 8.11 N/R 6.83 - 8.13 N/R 7.37 - 8.21 N/R 6.8 - 8.4 N/R 7.1 - 8.4 N/R 7.1 - 8.0 N/R 7.2 - 8.1
Total Residual Chlorine mg/L 3 days/wk 0.5 N/R 0 - 0.35 N/R 0 - 0.29 N/R 0.01 - 0.29 N/R 0 - 0. 14 N/R 0 - 0.02 N/R 0 - 0.22 N/R 0 - 0.01 N/R 0 - 0.03
Oil and Grease (visual) visual presence 3 days/wk Report N/R None N/R None N/R None N/R None N/R None N/R None N/R None N/R None
Oil and Grease (lab) mg/L
Contingent upon
visual presence 10 N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R N/R
Total Suspended Solids mg/L Weekly 30 - 45 N/R <5 - 21 N/R 1.4J - 7.3 N/R <5 - 2.5J N/R <2.5 - 13.3 N/R 0.6 - 21.9 N/R 1.7 - 7.7 N/R <2.5 - 20.4 N/R <2.5 - 3.8
E. Coli #/100 ml Weekly 126 - 252 N/R 0 - 2 N/R 0 N/R 0 N/R 0 - 105 N/R 0 - 54 N/R 0 - 1 N/R 0 - 1 N/R 0 - 11
BOD5 mg/L Monthly 30 - 45 N/R <2 N/R <1 N/R <1 N/R 1.1 N/R 2.6 N/R <1.0 N/R 11.4 N/R 7.4
Total Inorganic Nitrogen mg/L Monthly 10 N/R 8.4 N/R 8.7 N/R 8.7 N/R 8.3 N/R 5.9 N/R 6.8 N/R 5.9 N/R 5.9
Ammonia mg/L Monthly Report N/R 0.48 N/R 0.3 N/R 0.26 N/R 0.38 N/R 0.38 N/R 0.04 N/R 0.38 N/R 1.2
Arsenic, total recoverable ug/L Monthly 3.0 7.4 <0.6 3.0 0.55 3.9 <0.4 3.6 0.76 4.1 0.93 3.5 0.61 3.8 0.73 4.5 0.65
Cadmium, potentially dissolved ug/L Monthly 0.87 1.88 <0.1 0.9 <0.2 0.74 <0.2 1.2 <0.2 1.6 <0.2 1.7 <0.2 0.81 <0.2 1.1 <0.2
Copper, potentially dissolved ug/L Monthly 5,656 - 6,975 14.8 1.1 6.1 3.2 - 6.1 4.7 4.1 6 5.9 4.3 <4.0 7.1 6.8 4.5 4.8 6.4 10.9
Iron, total recoverable ug/L Monthly 253,000 8020 50 259 78.2 - 91 332 <500 115 43.4 106 <20 254 53.8 99 315 369 443
Lead, total recoverable ug/L Monthly 13,005 47.2 0.6 1.8 0.8 - 1.0 1.4 <1.0 2.1 <1.0 <1.0 <1.0 1.4 <1.0 1.3 <1.0 1.3 <1.0
Lead, potentially dissolved ug/L Monthly 2,405 42.3 0.5 1.6 0.8 - 1.1 3.2 <1.0 1.1 1.9 <1.0 <1.0 1.4 <1.0 1.2 <1.0 <1.0 <1.0
Mercury, total ug/L Monthly 3.5 N/R <0.2 N/R <0.2 N/R <0.1 N/R <0.1 N/R <0.1 N/R 2.0 N/R 0.6 N/R <0.1
Selenium, potentially dissolved ug/L Monthly 4.6 3.0 - 3.1 3.3 3.2 2.4 - 3.8 4.5 2.2 3.3 1.9 2.5 <0.8 3.0 23.7 4.0 2.3 1.1 2.6
WET Testing LC 50 Quarterly ≥ 100 N/R N/R N/R
Failed, then
passed N/R N/R N/R N/R N/R N/R N/R Passsed N/R N/R N/R N/R
shaded cell indicates compliance with permit limit
shaded cell indicates influent exceeds discharge limit; treatment required
shaded cell indicates effluent exceeds permit limit
* Metals Screen required per Section 1.A.3 of GLO Discharge Permit. VOC and SVOC screens confirmed only trace detections.
** Monitored parameters required per Section 1.A.2 of GLO Discharge Permit
N/R Not Required
Jul-17Jun-17Parameter Unit
Sample
Frequency
Effluent
Permit Limit
May-17 Dec-17Nov-17Sep-17 Oct-17Aug-17
