U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
Otsego Township Dam Area - Removal Polrep
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region V
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Subject:
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POLREP #20
Progress
Otsego Township Dam Area
059B
Otsego Township, MI
Latitude: 42.4601694 Longitude: -85.7199333
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To:
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Douglas Ballotti, EPA
Thomas Short, EPA
Samuel Borries, EPA
Mike Ribordy, EPA
Jim Saric, EPA
Mark Mills, MDNR
Dan Peabody, MDEGLE
Polly Synk, MDAG
Randy Rapp, Allegan County Health Dept
Dan Wedge, Allegan County
Cyndi Trobeck, City of Otsego
Bryan Winn, Otsego Township
Lisa Williams, U.S. FWS
Valincia Darby, U.S. DOI
Greg Baker, NOAA
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From:
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Paul Ruesch, OSC
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Date:
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7/21/2017
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Reporting Period:
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7/8/2017 - 7/21/2017
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1. Introduction
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1.1 Background
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Site Number: |
059B |
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Contract Number: |
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D.O. Number: |
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Action Memo Date: |
4/6/2016 |
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Response Authority: |
CERCLA |
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Response Type: |
PRP Oversight |
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Response Lead: |
PRP |
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Incident Category: |
Removal Action |
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NPL Status: |
NPL |
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Operable Unit: |
5 |
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Mobilization Date: |
8/1/2016 |
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Start Date: |
8/1/2016 |
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Demob Date: |
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Completion Date: |
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CERCLIS ID: |
MID006007306 |
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RCRIS ID: |
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ERNS No.: |
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State Notification: |
DEQ |
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FPN#: |
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Reimbursable Account #: |
059B |
1.1.1 Incident Category
Time Critical Removal Action - PRP Oversight
1.1.2 Site Description
See PolRep #1
1.1.2.1 Location
See PolRep #1
1.1.2.2 Description of Threat
See PolRep #1
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
See PolRep #1
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2. Current Activities
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2.1 Operations Section
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2.1.1 Narrative
Excavation of contaminated riverbank soils and in-stream sediments continues in BRSA 4 along with riverbank restoration. The staging area continues under construction in BRSA 6.
2.1.2 Response Actions During Reporting Period
BRSA 3
- Demobilization of the WWTP from staging area and relocation into BRSA 6 staging area.
BRSA 4
- Excavation of contaminated soils continues with excavation completed and confirmation results received in Grids 29-38. There are 50 total grids in BRSA 4, with each grid consisting of approximately 50 lineal feet of riverbank. The target clean-up goal in the riverbank soils is 5 mg/kg total PCBs;
- Began removal of sheet piling installed to facilitate excavation of stream tube adjacent to grids 15-24 (see photo); and
- Preparations for excavation of contaminated in-stream sediments are complete for the second 'stream tube' in BRSA 4, which is located within the river channel immediately adjacent to Grids 43-50. The target clean-up goal for in-stream sediments is 1 mg/kg total PCBs.
Estimated excavation depths and confirmation sampling results are found in the table below for riverbank grids (Table 1):
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BRSA 4
RIVERBANK
GRID
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TOTAL ESTIMATED EXCAVATION DEPTH (in)
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FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)
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29
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36
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0.30
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30
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36
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0.28
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31
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24
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<0.069
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32
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24
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0.61
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33
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24
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<0.060
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34
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24
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<0.067
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35
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24
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0.0851
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36
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24
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0.071
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37
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24
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<0.069
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38
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12
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0.16
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Table 1. BRSA 4
Riverbank Grid Confirmatory Sampling Results
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Table Notes: Confirmatory sampling takes place immediately following excavation of contaminated soils and/or sediments in accordance with procedures outlined in the FSP and the TM for BRSAs 4, 5, 6 & 9. Both documents can be found in the ‘Documents' Section of the project website. Stream Tube grids are numbered consistent with the riverbank grid they are located adjacent to. A figure showing the location of both riverbank grids and stream tubes can be found on Figure 8 of the BRSA 4, 5, 6 & 9 TM.
- Transport/disposal of approximately 1,629 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4).
BRSA 6
- Continued construction of staging area and stabilization pad (see photos);
- Mobilization of WWTP into staging area; and
- Removed abutment at old bridge crossing.
OVERALL SITE
- Daily particulate monitoring (PM10) around the site perimeter with no sustained exceedance off site of particulates above the action level of 1.5 mg/m3;
- Turbidity control measures and monitoring in Kalamazoo River around the BRSA 3 - 9 excavation area (1 upstream monitor and 2 downstream monitors), with no sustained exceedance of the action level of 50 NTUs above upstream levels;
- Treatment of approximately 90,318 gallons of contact water from contaminated grids and contaminated soils staging pads in the on-site WWTP located in BRSA 4 (see Section 2.1.4). Sampling results from the WWTP continues to confirm non-detect levels for total PCBs in treated water; and
- Monitoring of the temporary WCS.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
See PolRep #1
2.1.4 Progress Metrics
Both quantities during the reporting period ('Quantity' column) and totals to date ('Total' column) are included in the table.
| Waste Stream |
Medium |
Quantity |
Total |
Manifest # |
Treatment |
Disposal |
| Cardboard |
solid |
20 lbs |
800 lbs |
NA |
recycling |
Otsego Recycling Center
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| Plastic |
solid |
10 lbs |
285 lbs |
NA |
recycling |
Otsego Recycling Center |
| Steel |
solid |
10 lbs |
9250 lbs |
various |
recycling |
Broken Arrow Recycling |
| Contaminated soil (< 50 ppm* PCBs) |
solid |
1,629 tons (est) |
13,813 tons (est) |
various |
disposal |
Republic Ottawa County Farms Landfill, Coopersville, MI |
Contaminated soil
(> 50 ppm* PCBs) |
solid |
0 tons |
103.91 tons |
various |
disposal |
US Ecology Michigan,
Belleville, MI |
| Contact water |
liquid |
90,318 gal |
594,930 gal |
NA |
on-site WWTP |
On-site reuse/discharge to Kalamazoo River |
*Note: 1 ppm = 1 mg/kg
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2.2 Planning Section
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2.2.1 Anticipated Activities
During the next reporting period, the following activities are expected to occur:
BRSA 4
- Complete excavation of contaminated riverbank soils and in-stream sediments;
- Continue restoration of excavated river bank and in-stream sediment areas;
- Treat contact water from contaminated grids and contaminated soils staging pad; and
- Transport contaminated soils and sediments for disposal.
BRSA 6
- Complete construction of staging area;
- Complete construction of stabilization pad;
- Construct and test WWTP; and
- Commence excavation of contaminated riverbank soils and in-stream sediments.
SITEWIDE
- Operate
dust and turbidity control/monitoring systems; and
- Maintain/monitor temporary WCS.
2.2.1.1 Planned Response Activities
See Sections 2.2.1 & 2.2.1.2
2.2.1.2 Administrative Activities / Next Steps
- All comments on draft TM for BRSAs 7 & 8 have been received and are being consolidated into a single, consolidated response to AMEC-FW.
2.2.2 Issues
Heavy rains and flooding delayed progress during the reporting period.
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2.3 Logistics Section
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See PolRep #1
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2.4 Finance Section
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2.4.1 Narrative
See PolReps #3 and #7
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Budgeted |
Total To Date |
Remaining |
% Remaining |
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Extramural Costs
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| START |
$665,000.00 |
$633,000.00 |
$32,000.00 |
4.81% |
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Intramural Costs
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| US EPA - Direct |
$150,000.00 |
$105,000.00 |
$45,000.00 |
30.00% |
| US EPA - InDirect |
$150,000.00 |
$81,000.00 |
$69,000.00 |
46.00% |
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| Total Site Costs |
$965,000.00 |
$819,000.00 |
$146,000.00 |
15.13% |
* The above accounting of expenditures is an estimate based on figures known to the OSC at the time this report was written. The OSC does not necessarily receive specific figures on final payments made to any contractor(s). Other financial data which the OSC must rely upon may not be entirely up-to-date. The cost accounting provided in this report does not necessarily represent an exact monetary figure which the government may include in any claim for cost recovery.
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2.5 Other Command Staff
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2.5.1 Safety Officer
A safety meeting is held prior to work start each day. The meeting is led by on-site safety officer(s) from Envirocon & AMEC-FW.
2.5.2 Liaison Officer
2.5.3 Information Officer
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3. Participating Entities
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3.1 Unified Command
3.2 Cooperating Agencies
See PolRep #1
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4. Personnel On Site
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On average, the following personnel were present on site during the reporting period:
US EPA - 1
START - 1
Michigan DNR - 1
Michigan DEQ - 1
Envirocon: 35
Milbocker & Sons, Inc.: 4
AMEC-FW: 2
Spicer Group: 1
TOTAL: 46
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5. Definition of Terms
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AMEC-FW AMEC Foster Wheeler
BRSA Bank Removal and Stabilization Area
FSP Field Sampling Plan
GC General Contractor
mg/kg milligrams per kilogram
MDEQ Michigan Department of Environmental Quality
MDNR Michigan Department of Natural Resources
MDOT Michigan Department of Transportation
OSC On Scene Coordinator
PCBs Poly-chlorinated biphenyls
PolRep Pollution Report
ppm parts per million
PRP Potentially Responsible Party
START Superfund Technical Assessment & Response Team (US EPA contractor)
TM Technical Memorandum
US EPA United States Environmental Protection Agency
WCS Water Control Structure
WWTP Waste Water Treatment Plant
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6. Additional sources of information
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6.1 Internet location of additional information/report
http://www.epaosc.org/otsegodam
www.epa.gov/superfund/allied-paper-kalamazoo
6.2 Reporting Schedule
The next PolRep will be generated on August 4.
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7. Situational Reference Materials
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No information available at this time.
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POLREP #20 Last Updated 7/21/2017
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