A.71 Ten-Mile/Lange/Revere Canal, MI

A.71.1 Summary

Environment:	Freshwater
Scale:
Contaminants of Concern:	Heavy metals, VOCs, SVOCs, TMD system: ND - 121,000 ppm PCBs Sanitary Sewers: 3.9-48 ppm PCBs Catch Basins: 02-28.5 ppm PCBs
Final Remedy:	TMD System: isolating 20–30 ft sections at a time, using "pillow plugs," then removed water. Canal dewatered using metal sheet-piling. Contaminated sediment was stabilized with bentonite-polymer mixture.   Off-site disposal: 5,915 tons sent to Wayne Disposal (Belleville, MI): 41 miles. 18,315 tons sent to Lenox, MI: 25 miles. Canal soils sent to USACE Point Mouillee, MI.

A.71.2 Site Description

St. Claire Shores, MI

Year: 2003

Water Depth: 12–18 ft

Actual Volume Removed: 24,230 tons

A.71.3 Remedial Objectives

Remove all sediment >1 ppm PCBs.

Contaminated sediment thickness: 3 ft.

Contaminated sediment area: entire length (4,400 ft.) of pond

A.71.4 Monitoring

Resuspension:

Silt curtains were used to contain contaminated sediment and to reduce/control turbidity.

Performance:

All sediment areas were below the 1 ppm goal.

Residuals:

No cappingTechnology which covers contaminated sediment with material to isolate the contaminants from the surrounding environment. or backfill was necessary for this site.

Three sampling areas:

TMD: Ten-Mile Drain

Sanitary Sewers (no remediationThe act or process of abating, cleaning up, containing, or removing a substance (usually hazardous or infectious) from an environment.)

Catch Basins

Limited dredging action around boat slips later in 2004

A.71.5 References

USEPA Ten-Mile Drain System and Ten-Mile/Lange/Revere Canal PCB Cleanup. Nov 2002. http://www.epa.gov/region05/cleanup/tenmiledrain/.

Agency for Toxic Substances & Disease Registry Health Consultation Response To Public Comments as updated Nov 2009. http://www.atsdr.cdc.gov/hac/pha/pha.asp?docid=463&pg=1.

Weston Solutions, Inc. Bon Brae/Harper Site Removal Action St. Clair Shores, Macomb County, Michigan Technical Direction Document No: S05-0001-0912-017. Jun 2010. http://www.epa.gov/region5/cleanup/tenmiledrain/pdfs/tmd_ra_2011.pdf (Weston, 2010).

Major Contaminated Sediment Sites Database; Sept. 2004 as updated 2008. http://www.smwg.org/MCSS_Database/MCSS_Database_Docs.html.

Publication Date: August 2014