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Otsego Township Dam Area

All POL/SITREP's for this site Otsego Township Dam Area
Otsego Township, MI - EPA Region V
POLREP #31
Progress 		Printer Friendly  |   PDF
 
U.S. ENVIRONMENTAL PROTECTION AGENCY
POLLUTION/SITUATION REPORT
Otsego Township Dam Area - Removal Polrep

EPA Emergency Response

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Region V
Subject: POLREP #31
Progress
Otsego Township Dam Area
059B
Otsego Township, MI
Latitude: 42.4601694 Longitude: -85.7199333

To: 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
From: Paul Ruesch, OSC
Date: 12/22/2017
Reporting Period: 12/9/2017 - 12/22/2017

1. Introduction
  1.1 Background
   
Site Number: 059B    Contract Number:  
D.O. Number:      Action Memo Date: 4/6/2016
Response Authority: CERCLA    Response Type: PRP Oversight
Response Lead: PRP    Incident Category: Removal Action
NPL Status: NPL    Operable Unit: 5
Mobilization Date: 8/1/2016    Start Date: 8/1/2016
Demob Date:      Completion Date:  
CERCLIS ID: MID006007306    RCRIS ID:
ERNS No.:    State Notification: DEQ
FPN#:    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
2. Current Activities
  2.1 Operations Section
   

2.1.1 Narrative
Removal operations were completed in BRSA 9, continue in BRSA 7, and are ready to begin in BRSA 8. Restoration continues in BRSAs 6 and 9.

2.1.2 Response Actions During Reporting Period

BRSA 6
- Restoration (backfilling, grading, tree/shrub/live stake planting) along riverbanks.

BRSA 7
- Excavation of contaminated soils and sediments is underway (see photo) with confirmation results received in riverbank grids and stream tube grids shown in the tables 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.

Estimated excavation depths and confirmation sampling results are found below for riverbank grids and stream tubes in BRSA 7 (Tables 1 & 2).

BRSA 7

RIVERBANK GRID

 

 

TOTAL ESTIMATED EXCAVATION DEPTH (in)

 

 

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

 

 

6

 

 

48

 

 

0.20

 

 

7

 

 

48

 

 

0.14

 

 

8

 

 

48

 

 

0.20

 

 

9

 

 

48

 

 

0.40

 

 

Table 1. BRSA 7 Riverbank Grid Confirmatory Sampling Results

 

 

BRSA 7

STREAM TUBE

 

 

TOTAL ESTIMATED EXCAVATION DEPTH (in)

 

 

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

 

 

09E-8

 

 

36

 

 

0.21

 

 

Table 2. BRSA 7 Stream Tube Confirmatory 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 1-7 of the BRSA 7 & 8 TM.

BRSA 8
- Continued maintenance of stream tube protection measures to prevent erosion; and
- Began preparations for removal operations.

BRSA 9
- Excavation of contaminated soils was completed with confirmation results received in riverbank grids and stream tube grids shown in the tables below. There were 38 total river bank grids in BRSA 9, 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 was 5 mg/kg total PCBs and in-stream sediments was 1mg/kg total PCBs;
- Restoration (backfilling, grading, tree/shrub/live stake planting) along riverbanks; and
- Continued transportation and disposal of contaminated soils & sediments.

Estimated excavation depths and confirmation sampling results are found below for riverbank grids and stream tubes in BRSA 9 (Tables 3 & 4).

BRSA 9

RIVERBANK GRID

 

 

TOTAL ESTIMATED EXCAVATION DEPTH (in)

 

 

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

 

 

31

 

 

12

 

 

< 0.030

 

 

32

 

 

12

 

 

0.16

 

 

Table 3. BRSA 9 Riverbank Grid Confirmatory Sampling Results

 

 

BRSA 9

STREAM TUBE

 

 

TOTAL ESTIMATED EXCAVATION DEPTH (in)

 

 

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

 

 

12A-31

 

 

12

 

 

< 0.051

 

 

12A-32

 

 

12

 

 

0.26

 

 

Table 4. BRSA 9 Stream Tube Confirmatory Sampling Results

 

 

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 (preliminary) riverbank grids and stream tubes can be found on Figure 3-3 of the BRSA 4, 5, 6 & 9 TM.

OVERALL SITE
- Transport/disposal of approximately 1,521 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4).
- 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. Upwind and downwind monitors are now relocated for work in BRSAs 7 & 8;
- Turbidity control measures and monitoring in the Kalamazoo River downstream of project area (1 upstream monitor and 2 downstream monitors), with no sustained exceedance of the action level of 50 NTUs; 
- Treatment of approximately 55,460 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
- Monitoring of the temporary WCS. All stop logs remain removed from the structure.

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 30 lbs 1180 lbs NA recycling Otsego Recycling Center
 Plastic solid 10 lbs 515 lbs NA recycling Otsego Recycling Center
 Steel solid 1,960 lbs 27,560 lbs various  recycling Broken Arrow Recycling
 Contaminated soil (< 50 ppm* PCBs) solid 1521 tons (est) 33,851 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 55,460 gal           1,746,476 gal  NA on-site WWTP On-site reuse/discharge to Kalamazoo River
*Note: 1 ppm = 1 mg/kg
  2.2 Planning Section
   

2.2.1 Anticipated Activities
During the next reporting period, the following activities are expected to occur:

BRSA 6
- Continue restoration of excavated riverbank grids; and
- 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
- Begin 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 backfilling & restoration of excavated riverbank grids;
- Treat contact water from contaminated soils staging pad; 
- Continue staging pad and WWTP operations to support removal operations in BRSA 8; and
- Transport contaminated soils & sediments for disposal.

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
- An agreement in concept was reached on the approach for temporary WCS removal and restoration of the adjacent riverbanks on December 13. A proposed work plan for removal of the temporary WCS and restoration of the area will be submitted for review by January 12, 2018. Preparations to remove the temporary WCS are expected to begin in mid-January.
- An extension was granted on December 11 for submittal of the draft Operations, Maintenance & Monitoring Plan, which will be a component of the Post-Removal Site Control Plan, until March 1, 2018. 

2.2.2 Issues
- Heavy snow slowed work progress during the reporting period (see photo).
- Most of the crew de-mobilized for the holidays on December 21. The site will be monitoring daily during the holiday break. Work will resume work on January 3, 2018.
  2.3 Logistics Section
    See PolRep #1
  2.4 Finance Section
    No information available at this time.
  2.5 Other Command Staff
   

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
- US EPA is coordinating with Otsego Middle School to develop an educational program for 7th grade students on the project and careers in Science, Technology, Engineering & Mathematics.
- The crew collected over 50 toys for the annual Otsego toy drive at the First Congregational Church in Otsego (see photo).
- A tour was provided to representatives of the Michigan Natural Resource Trustees from the Michigan Department of Attorney General and the National Oceanic and Atmospheric Administration on December 20.

2.5.3 Information Officer
3. Participating Entities
 

3.1 Unified Command

3.2 Cooperating Agencies

See PolRep #1
4. Personnel On Site
 

On average, the following personnel were present on site during the reporting period: 

US EPA - 1
START - 1
MDNR - 1
MDEQ - 1
Envirocon -38
AMEC-FW - 3
Spicer Group - 1

TOTAL: 46
5. Definition of Terms
  AMEC-FW          AMEC Foster Wheeler     
BRSA                  Bank Removal and Stabilization Area
FSP                     Field Sampling Plan    
mg/kg                  milligrams per kilogram
MDEQ                 Michigan Department of Environmental Quality
MDNR                 Michigan Department of Natural Resources
ND                      Non-Detect
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
UAO                    Unilateral Administrative Order
US EPA              United States Environmental Protection Agency   
WCS                   Water Control Structure
WWTP                Waste Water Treatment Plant     
6. Additional sources of information
 

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 January 5, 2018 .
7. Situational Reference Materials
  No information available at this time.

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