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 #34
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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2/2/2018
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Reporting Period:
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1/20/2018 - 2/2/2018
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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 |
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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
Removal operations continue in BRSA 7 and BRSA 8. Removal of the temporary WCS continues.
2.1.2 Response Actions During Reporting Period
BRSA 6
- Staging area maintenance.
BRSA 7
- Excavation of contaminated soils and sediments continues with confirmation results received in riverbank and stream tube grids shown in Tables 1 & 2 below. There are 63 total river bank grids in BRSA 7, with each grid consisting of approximately 50 feet of riverbank. There are 3 stream tubes, with each varying in size. The target clean-up goal in riverbank soils is 5 mg/kg total PCBs and in-stream sediments is 1mg/kg total PCBs;
- Continued transportation and disposal of contaminated soils and sediments (utilizing the staging pad in BRSA 6); and
- Continued maintenance of stream tube protection measures to prevent erosion.
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BRSA 7
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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13
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48
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3.8
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Table 1. BRSA 7
Riverbank Grid Confirmatory Sampling Results
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BRSA 7
STREAM TUBE
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TOTAL ESTIMATED EXCAVATION DEPTH (in)
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FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)
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09E-13
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36
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0.12
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Table 2. BRSA 7
Stream Tube Confirmatory Sampling Results
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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 1-7 of the BRSA 7 & 8 TM.
BRSA 8
- Excavation of contaminated soils continues, with confirmation results received in riverbank and stream tube grids shown in Tables 3 & 4 below. There are 63 total river bank grids in BRSA 8, with each grid consisting of approximately 50 lineal feet of riverbank. There are 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;
- Continued maintenance of stream tube protection measures to prevent erosion; and
- Continued transportation and disposal of contaminated soils and sediments (utilizing the staging pad in BRSA 9).
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BRSA 8
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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1
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6
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< 0.03
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2
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6
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< 0.031
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3
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6
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0.16
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4
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6
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0.11
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5
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6
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0.22
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6
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6
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0.13
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7
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6
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0.44
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8
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6
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4.0
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9
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12
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3.3
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10
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12
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0.20
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11
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12
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0.58
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12
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12
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< 0.047
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13
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12
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< 0.050
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19
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24
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< 0.034
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20
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24
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< 0.043
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21
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24
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< 0.059
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22
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24
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< 0.061
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23
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24
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< 0.065
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24
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24
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< 0.071
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25
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24
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< 0.072
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45
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24
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0.41
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46
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24
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1.4
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47
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36
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< 0.066
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49
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48
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< 0.038
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50
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36
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0.073
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51
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36
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0.089
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52
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6
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2.4
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53
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6
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TBD
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54
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36
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TBD
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60
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6
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0.89
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61
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6
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0.25
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62
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6
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1.9
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63
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6
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1.9
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Table 3. BRSA 8
Riverbank Grid Confirmatory Sampling Results
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BRSA 8
STREAM TUBE
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TOTAL ESTIMATED EXCAVATION DEPTH (in)
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FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)
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07A-19
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6
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< 0.034
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07A-20
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6
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< 0.043
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07A-21
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6
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< 0.059
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07A-22
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6
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< 0.061
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Table 3. BRSA 8
Stream Tube Confirmatory Sampling Results
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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.
BRSA 9
- Staging area maintenance.
OVERALL SITE
- Transport/disposal of approximately 3,719 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4);
- Daily 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 monitoring utilizing a hand held monitoring instrument with no sustained exceedances;
- Treatment of approximately 21,020 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; and
- Removal of the temporary WCS continues (see photo of sheet pile removal on north side).
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 |
1230 lbs |
NA |
recycling |
Otsego Recycling Center
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| Plastic |
solid |
10 lbs |
545 lbs |
NA |
recycling |
Otsego Recycling Center |
| Steel |
solid |
20 lbs |
27,560 lbs |
various |
recycling |
Broken Arrow Recycling |
| Contaminated soil (< 50 ppm* PCBs) |
solid |
3,719 tons (est) |
39,875 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 |
21,020 gal |
1,803,496 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
- Continue staging pad and WWTP operations to support removal operations in BRSA 7.
BRSA 7
- Continue access road construction along riverbanks;
- 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
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Treat contact water from contaminated grids, stream tubes and staging pad (located in BRSA 9); and
- Transport contaminated soils & sediments for disposal.
BRSA 9
- Continue staging pad and WWTP operations to support removal operations in BRSA 8.
SITEWIDE
- Operate
dust and turbidity control/monitoring systems (as feasible & necessary); and
- Continue removal of the 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
- A land use permit will be issued by MDNR for the restoration component of the proposed work plan once design plans are submitted, reviewed and approved.
- MDNR will be issuing a project advertisement requesting for demolition of the auxiliary spillway located adjacent to the temporary WCS the week of February 5.
- MDOT permits for warning signage posted on M-89 at 1) 106th Street, 2) 19th Street, and 3) at the Kalamazoo River bridge (BRSA 3 entrance) were amended to extend the expiration date. This warning signage is still necessary as slow trucks continue to enter the highway.
2.2.2 Issues
- Verification sampling is needed in BRSA 7 in the vicinity of riverbank grids 41-43 to confirm the presence of PCB contaminated soils with concentrations > 50 ppm, which were detected in a historical sample.The sampling will be conducted consistent with Section 2.7 of the draft FSP.
- Residents raised the concern of truck speeds on 19th Street, which provides access to the BRSA 6 staging area. All drivers were put on notice to respect the posted speed limit of 12 mph on 19th Street.
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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
MDNR responded to an inquiry for a tour of the temporary WCS removal by a reporter from the Allegan News / Otsego Union Enterprise on February 1.
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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
MDNR - 1
MDEQ - 1
Envirocon - 35
Milbocker & Sons, Inc. - 4
Spicer Group, Inc. - 1
AMEC-FW
- 2
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
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
http://www.epaosc.org/otsegodam
www.epa.gov/superfund/allied-paper-kalamazoo
6.2 Reporting Schedule
The next PolRep will be generated on February 16.
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7. Situational Reference Materials
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No information available at this time.
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