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 #19
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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7/7/2017
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Reporting Period:
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6/24/2017 - 7/7/2017
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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
Riverbank re-construction was completed in BRSA 3. Excavation of contaminated riverbank soils and in-stream sediments continues in BRSA 4 along with riverbank restoration. The staging pad is under construction in BRSA 6.
2.1.2 Response Actions During Reporting Period
BRSA 3
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Transport/disposal of approximately 70 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4);
- Completed river bank re-construction;
- Removed of stabilization pad; and
- Demobilized equipment & construction materials.
BRSA 4
- Excavation of contaminated soils continues with excavation completed in Grids 21-24. 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;
- Excavation of contaminated in-stream sediments completed in one of two 'stream tubes' in BRSA 4, which is located within the river channel immediately adjacent to Grids 15-24. The target clean-up goal for in-stream sediments is 1 mg/kg total PCBs;
The final excavation depths and reported confirmation sampling results are found in the tables below for riverbank grids (Table 1) and in-stream sediments (Table 2):
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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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21
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36
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ND
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22
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36
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ND
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23
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36
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0.077
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24
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36
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0.07
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Table 1. BRSA 4
Riverbank Grid Confirmatory Sampling Results
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BRSA 4
STREAM TUBE 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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21
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6
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0.20
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22
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6
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0.19
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23
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6
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0.78
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24
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12
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0.32
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Table 2. BRSA 4
Stream Tube 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 530 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4).
BRSA 6
- Construction of staging area and stabilization pad;
- Mobilized supporting equipment into staging area; and
- Completed widening of roads to improve access to riverbanks.
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 45,300 gallons of contact water from contaminated grids and contaminated soils staging pads in the on-site WWTPs located in BRSA 3 and BRSA 4 (see Section 2.1.4). Sampling results from both WWTPs continue to confirm non-detect levels for total PCBs in treated water;
- Mussel relocation activities were completed in BRSAs 7 & 8. Approximately 500 threatened mussels were inventoried, measured, tagged and moved to an adequate area upstream and outside the work area;
- Check up on mussel colony relocated last year, with a very low mortality rate observed (approximately 3%); 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 |
50 lbs |
780 lbs |
NA |
recycling |
Otsego Recycling Center
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| Plastic |
solid |
25 lbs |
275 lbs |
NA |
recycling |
Otsego Recycling Center |
| Steel |
solid |
20 lbs |
9240 lbs |
various |
recycling |
Broken Arrow Recycling |
| Contaminated soil (< 50 ppm* PCBs) |
solid |
600 tons (est) |
12,184 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 |
45,300 gal |
504,612 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 3
- Decommission
and demobilize WWTP along with other equipment from staging area.
BRSA 4
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Restore 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 and stabilization pad; and
- Mobilize and construct WWTP; and
- Mobilize supporting equipment into staging area;
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
- The draft TM for BRSAs 7 & 8 continues under review, with comments due by July 24.
2.2.2 Issues
Productivity was impacted by the July 4th holiday as work was paused for several days.
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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 |
$635,000.00 |
$30,000.00 |
4.51% |
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Intramural Costs
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| US EPA - Direct |
$150,000.00 |
$100,000.00 |
$50,000.00 |
33.33% |
| US EPA - InDirect |
$150,000.00 |
$80,000.00 |
$70,000.00 |
46.67% |
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| Total Site Costs |
$965,000.00 |
$815,000.00 |
$150,000.00 |
15.54% |
* 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
A flyer was distributed door to door announcing a community meeting planned for July 26 from 6:00pm to 8:00pm at the Otsego City Hall to update project neighbors on work progress and plans for the remainder of 2017.
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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
AMEC-FW: 2
Spicer Group: 1
Environmental Solutions & Innovation, Inc. - 5
TOTAL: 47
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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 July 21.
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7. Situational Reference Materials
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No information available at this time.
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POLREP #19 Last Updated 7/7/2017
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