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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 #18
Progress
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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 #18
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: 6/23/2017
Reporting Period: 6/10/2017 - 6/23/2017

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
Riverbank restoration activity continues in BRSA 3. Excavation of contaminated riverbank soils and in-stream sediments commenced in BRSA 4. Mobilization of equipment and materials to the staging area is underway into BRSA 6.

2.1.2 Response Actions During Reporting Period

BRSA 3
- Placement of rock and top soil, also known as 'joint planting,' was completed;
- Feeder stream crossings which connect water draining from floodplains to the river were re-established; and
- Transport/disposal of approximately 645 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4).

BRSA 4
- Excavation of contaminated soils commenced with excavation completed in Grids 1-20. 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 commenced with excavation underway in the first 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):

BRSA 4

RIVERBANK

GRID

TOTAL ESTIMATED EXCAVATION DEPTH (in)

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

1

6

ND

2

6

0.25

3

6

ND

4

6

ND

5

6

ND

6

6

0.082

7

6

0.44

8

6

0.91

9

6

0.15

10

6

0.48

11

6

3.5

12

24

ND

13

24

0.9

14

36

0.84

15

36

0.32

16

36

ND

17

36

ND

18

36

ND

19

36

0.14

20

36

ND

Table 1. BRSA 4 Riverbank Grid Confirmatory Sampling Results


BRSA 4

STREAM TUBE GRID*

TOTAL ESTIMATED EXCAVATION DEPTH (in)

FINAL
CONFIRMATION TOTAL PCBs RESULT (mg/kg)

15

6

ND

16

6

0.78

17

6

ND

18

6

0.29

19

6

0.29

20

6

0.17

Table 2. BRSA 4 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 riverbank grids and stream tubes can be found on Figure 8 of the BRSA 4, 5, 6 & 9 TM.

- Transport/disposal of approximately 1,134 tons of excavated soils to an EPA-approved landfill facility (see Section 2.1.4).

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 70,550 gallons of contact water from contaminated grids and contaminated soils staging pads in the two on site WWTPs located in BRSAs 3 & 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 (see photo) are underway in BRSAs 7 & 8. The threatened mussels are being inventoried, measured, tagged and moved to an adequate area upstream and outside the work area;
- Japanese Knotweed (an aggressive invasive plant) near the BRSA 8 staging area was inventoried and marked for treatment; 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 30 lbs 730 lbs NA recycling Otsego Recycling Center
 Plastic solid 20 lbs 250 lbs NA recycling Otsego Recycling Center
 Steel solid 50 lbs 9220 lbs various  recycling Broken Arrow Recycling
 Contaminated soil (< 50 ppm* PCBs) solid 1,779 tons (est) 11,313 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 70,550 gal           422,025 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 3
- Continue riverbank restoration;
- Complete transport of contaminated sediments & riverbank soils for disposal; and
- Decommission and demobilize WWTP along with other equipment from staging area.

BRSA 4
- Continue excavation of contaminated riverbank soils and in-stream sediments;
- Treatment of contact water from contaminated grids and contaminated soils staging pad; and
- Transport of contaminated soils and sediments for disposal.

BRSA 6
- Commence construction of staging area and stabilization pad;
- Mobilize WWTP along with other supporting equipment into staging area; and
- Construct access roads to improve access to riverbanks.

SITEWIDE
- Operate dust and turbidity control/monitoring systems;
- Complete mussel relocation;
- Treat invasive Japanese Knotweed; 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 was submitted by AMEC-FW on June 23 for review and comment.

2.2.2 Issues

  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 start of work each day, which includes warm up and stretching exercises led by a crew member (see photo). The meeting is led by on-site safety officer(s) representing both Envirocon and AMEC-FW.

2.5.2 Liaison Officer

- A tour was provided for 26 students from the Western Michigan University (WMU) - Hydrogeology Field Course on June 20. 
- Dr. Lisa Williams and Kelly Bakayza of US FWS toured the site on June 21. Dr. Williams is a Natural Resource Trustee for the State of Michigan.

2.5.3 Information Officer
- A community meeting is being planned to update residents on work progress and work plans for the rest of 2017. A flyer will be distributed door to door announcing the date and location, which is anticipated for late July

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
Michigan DNR - 1
Michigan DEQ - 1
Envirocon: 35
AMEC-FW: 2
Spicer Group: 1
Environmental Solutions & Innovation, Inc. - 5

TOTAL: 47

5. Definition of Terms
  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
US FWS             United States Fish & Wildlife Service     
WCS                   Water Control Structure
WMU                  Western Michigan University
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 July 7.

7. Situational Reference Materials
  No information available at this time.


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