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 #38
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
Samuel Borries, EPA
Mike Ribordy, EPA
Jim Saric, EPA
Mark Mills, MDNR
Polly Synk, MDAG
Cyndi Trobeck, City of Otsego
Valincia Darby, U.S. DOI
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From:
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Paul Ruesch, OSC
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Date:
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3/30/2018
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Reporting Period:
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3/17/2018 - 3/30/2018
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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 |
Response Authority: |
CERCLA |
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Response Type: |
PRP Oversight |
Response Lead: |
PRP |
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Incident Category: |
Removal Action |
NPL Status: |
NPL |
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Operable Unit: |
5 |
Mobilization Date: |
8/1/2016 |
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Start Date: |
8/1/2016 |
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 |
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
Removal operations in BRSA 8 were completed. Removal operations in BRSA 7 continue along with removal of the temporary WCS.
2.1.2 Response Actions During Reporting Period
BRSA 7
- Transportation and disposal of contaminated soils & sediments (utilizing the staging pad in BRSA 6);
- Re-grading and restoration of riverbank grids;
- Tree clearing operations to facilitate access road construction to access remaining riverbank and stream tube grids; and
- Maintenance and repair of stream tube protection measures and access roads.
BRSA 8
- Excavation of contaminated soils and sediments was completed, with confirmation results received in riverbank grids and stream tubes shown in Tables 1 & 2 below. There were 63 total river bank grids in BRSA 8, with each grid consisting of approximately 50 lineal feet of riverbank. There were 3 stream tubes, with each stream tube varying in size. The target clean-up goal in the riverbank soils is 5 mg/kg total PCBs and in-stream sediments is 1mg/kg total PCBs;
- Transportation and disposal of contaminated soils & sediments (utilizing the staging pad in BRSA 9); and
- Re-grading and restoration of riverbank grids.
BRSA 8
RIVERBANK GRID |
TOTAL ESTIMATED
EXCAVATION DEPTH (in) |
FINAL
CONFIRMATION RESULT (Total PCBs, mg/kg) |
25 |
48 |
0.17 |
31 |
48 |
<
0.070 |
32 |
48 |
<
0.073 |
33 |
48 |
0.15 |
34 |
48 |
1.5 |
35 |
48 |
2 |
39 |
48 |
< 0.062 |
40 |
48 |
< 0.038 |
Table 1. BRSA 8 Riverbank Grid Confirmation Sampling Results |
BRSA 8
STREAM TUBE GRID |
TOTAL ESTIMATED
EXCAVATION DEPTH (in) |
FINAL
CONFIRMATION RESULT (Total PCBs, mg/kg) |
35 |
12 |
<
0.081 |
36 |
12 |
<
0.080 |
37 |
12 |
< 0.080 |
38 |
12 |
< 0.078 |
Table 2. BRSA 8 Stream Tube Grid Confirmation Sampling Results |
General 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 7 & 8. 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 (preliminary) riverbank grids and stream tubes can be found on Figure 1-8 of the BRSA 7 & 8 TM.
OVERALL SITE
- Transport/disposal of approximately 2,349 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4);
- Particulate monitoring (PM10) around the site perimeter (when feasible) with no sustained exceedance off site of particulates above the action level of 1.5 mg/m3;
- Turbidity monitors were re-installed in the river. No sustained exceedances were observed;
- Treatment of approximately 70,710 gallons of contact water from contaminated grids and contaminated soils staging pads in on-site WWTPs located in BRSAs 6 & 9 (see Section 2.1.4). Sampling results from both WWTPs continue to show non-detect levels for PCBs in the treated discharge;
- Temporary WCS removal activities continue on the south bank of the river (see photo); and
- Bank re-grading and restoration continues on the north bank of the river at 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 |
1290 lbs |
NA |
recycling |
Otsego Recycling Center
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Plastic |
solid |
10 lbs |
575 lbs |
NA |
recycling |
Otsego Recycling Center |
Steel |
solid |
2120 lbs |
29,680 lbs |
various |
recycling |
Broken Arrow Recycling |
Contaminated soil (< 50 ppm* PCBs) |
solid |
2,349 tons (est) |
46,631 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 |
70,710 gal |
1,918,546 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 6
- Staging pad and WWTP operations to support removal operations in BRSA 7.
BRSA 7
- Access road construction along riverbanks;
- Construction of a staging pad, load out area and temporary storage tanks for contact water adjacent to command post;
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Treat contact water from contaminated grids, stream tubes and staging pad (located in BRSA 6); and
- Transport contaminated soils & sediments for disposal.
BRSA 8
- Re-construction and restoration of riverbanks; and
- Transport contaminated soils & sediments for disposal.
BRSA 9
- Dismantlement, cleaning and removal of WWTP; and
- Staging pad operations to support restoration operations in BRSA 8.
SITEWIDE
- Operate
dust and turbidity control/monitoring systems;
- Complete removal of temporary WCS; and
- Continue restoration of surrounding area.
2.2.1.1 Planned Response Activities
See Sections 2.2.1 & 2.2.1.2
2.2.1.2 Administrative Activities / Next Steps
- The end date of the 'Application/Permit to Use State Land' (#ASGA-17-010) for activities at the command post area located at 2063 Covault Lane was extended until 9/30/2018. This area will be utilized as a staging area for BRSA 7 removal operations beginning in April 2018.
2.2.2 Issues
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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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No information available at this time.
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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 by on-site safety officer(s) from Envirocon & AMEC-FW.
2.5.2 Liaison Officer
2.5.3 Information Officer
- Various press (television crews, photographers and reporters) visited the site on March 26, 28 & 29.
- A presentation was provided to seventh graders participating in the STREAM program at the Otsego Middle School on March 27. A site tour was provided immediately following the presentation (see photo). The presentation and field visit were part of a series of interactions between site personnel and students participating in the STREAM program.
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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:
USEPA - 1
START - 1
MDNR - 1
MDEQ - 1
Envirocon - 39
Milbocker & Sons, Inc. - 3
Spicer Group, Inc. - 1
AMEC-FW
- 2
TOTAL: 49
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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
MDEQ Michigan Department of Environmental Quality
MDNR Michigan Department of Natural Resources
NTU Nephelometric Turbidity Unit
OSC On Scene Coordinator
PCB Polychlorinated Biphenyl
PM Particulate Matter
PolRep Pollution Report
PRP Potentially Responsible Party
START Superfund Technical Assessment & Response Team (US EPA contractor)
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
https://response.epa.gov/otsegodam
www.epa.gov/superfund/allied-paper-kalamazoo
6.2 Reporting Schedule
The next PolRep will be generated on April 13.
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7. Situational Reference Materials
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No information available at this time.
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