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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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2.1.1 Narrative
Removal operations were completed in BRSA 7. Restoration operations are ongoing in BRSAs 6, 7, 8 & 9.
2.1.2 Response Actions During Reporting Period
BRSA 6
- Continued restoration of construction entrance & staging area.
BRSA 7
- Excavation of contaminated soils and sediments was completed with confirmation results received in the riverbank grids and stream tube grids shown in Tables 1 & 2 below. There were 63 total river bank grids in BRSA 7, with each grid consisting of approximately 50 feet of riverbank. There were 3 stream tubes, with each varying in size. The target clean-up goal in riverbank soils was 5 mg/kg total PCBs and in-stream sediments was 1mg/kg total PCBs;
- Completed transportation and disposal of contaminated soils & sediments;
- Re-grading and restoration of excavated riverbanks (see photo);
and
- Maintenance of stream tube protection measures.
BRSA 7
RIVERBANK GRID |
TOTAL ESTIMATED
EXCAVATION DEPTH (in) |
FINAL
CONFIRMATION RESULT (Total PCBs, mg/kg) |
26 |
24 |
0.54 |
27 |
30 |
2.0 |
28 |
24 |
0.86 |
29 |
24 |
0.3 |
30 |
24 |
1.9 |
31 |
24 |
2.4 |
32 |
24 |
2.9 |
33 |
24 |
1.4 |
34 |
24 |
0.18 |
35 |
24 |
0.098 |
36 |
24 |
0.34 |
37 |
24 |
<
0.029 |
38 |
24 |
<
0.041 |
39 |
24 |
1.7 |
40 |
24 |
2.9 |
41 |
24 |
0.078 |
42 |
24 |
0.81 |
Table 1. BRSA 7 Riverbank Grid Confirmation Sampling Results |
BRSA 7
STREAM TUBE GRID |
TOTAL ESTIMATED
EXCAVATION DEPTH (in) |
FINAL
CONFIRMATION RESULT (Total PCBs, mg/kg) |
28 |
6 |
0.8 |
29 |
6 |
0.95 |
30 |
6 |
0.26 |
31 |
6 |
0.18 |
32 |
6 |
0.45 |
33 |
18 |
< 0.063 |
34 |
12 |
0.13 |
Table 2. BRSA 7 Stream Tube Grid Confirmation Sampling Results |
General Table Notes: Confirmatory sampling (see photo) 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
- Continue restoration planting on riverbanks.
BRSA 9
- Completed restoration of staging area; and
- Allegan County installed new warning signage at former entrance off of Jefferson Road.
OVERALL SITE
- Transport/disposal of approximately 2067 tons of excavated soils to an approved landfill facility (see Section 2.1.4);
- Dust control measures and particulate monitoring (PM10) around site perimeter with no sustained exceedance of particulates above action level of 1.5 mg/m3;
- In-stream turbidity monitoring with no sustained exceedances observed;
- Shipment of approximately 11,370 gallons of contact water from contaminated grids and/or contaminated soils staging pad at BRSA 7 to an approved off-site treatment facility (see Section 2.1.4);
- Continue operation & maintenance of surface water run-off and erosion control measures;
- Continue irrigation of native plants/grasses in all completed BRSAs (see photo); and
- Continued restoration activities (grading, contouring, planting) of area at former 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 |
50 lbs |
1540 lbs |
NA |
recycling |
Otsego Recycling Center
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Plastic |
solid |
100 lbs |
835 lbs |
NA |
recycling |
Otsego Recycling Center |
Metals |
solid |
2980 lbs |
44,276 lbs |
various |
recycling |
Broken Arrow Recycling |
Contaminated soil (< 50 ppm* PCBs) |
solid |
2067 tons (est) |
53,159 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 |
0 gal |
2,013,046 gal |
NA |
on-site WWTP |
On-site reuse/discharge to Kalamazoo River |
Contact water |
liquid |
11,370 gal |
42,128 gal |
various |
off-site WWTP |
Liquid Industrial Waste, Holland, MI |
*Note: 1 ppm = 1 mg/kg
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2.2.1 Anticipated Activities
During the next reporting period, the following activities are expected to occur:
BRSA 6
- Continue restoration of staging area; and
- Continue restoration of entrance to staging area off of 19th Street.
BRSA 7
- Re-construct and restore riverbanks;
- Demobilize temporary storage tanks; and
- Remove temporary stabilization pad.
BRSA 8
- Complete restoration of riverbanks.
SITEWIDE
- Remove & demobilize
dust and turbidity control/monitoring systems;
- Complete construction of irrigation system for native trees/plants/grasses in restored areas;
- Demobilize office trailers at command center; and
- Continue restoration of area surrounding the former temporary WCS and auxiliary spillway.
2.2.1.1 Planned Response Activities
See Sections 2.2.1 & 2.2.1.2
2.2.1.2 Administrative Activities / Next Steps
- Wood Group met with US EPA on June 19 to discuss the Post Removal Site Control Plan. A second draft will be submitted for agency review in late July.
- Wood Group and START are assembling project data and field reports and preparing final reports for the project.
2.2.2 Issues
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On average, the following personnel were present on site during the reporting period:
USEPA - 1
START - 2
MDNR - 1
MDEQ - 1
Envirocon - 39
Grand Rapids Irrigation - 2
MJ VanDamme Inc. - 1
K & D Industries West Inc. - 2
Spicer Group, Inc. - 1
Wood Group - 2
Toads Tree Service - 1
TOTAL: 53
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