2013

Two more beneficial use impairments are removed:

• Eutrophication or undesirable algae
• Beach closings

2012

MDEQ publishes Stage II of the Remedial Action Plan.

• Stage 2 Remedial Action Plan River Raisin Area of Concern (PDF) (18 pp, 269 K, About PDF) Exit

The River Raisin Legacy Act project begins which aims to remove about 110,000 cubic yards of PCB-contaminated sediment.

The first beneficial use impairment is removed:

• Degradation of aesthetics

2010

MDEQ releases an updated delisting guide for each of the BUIs in the Michigan Areas of Concern.

2009

MDEQ publishes a RAP update.

• MDEQ Biennial Remedial Action Plan Update for the River Raisin Area of Concern (PDF) (15 pp, 263 K, About PDF)ExitApril 2009

2006

An update to the RAP is published.

2005-2006

PCB paper sludge is excavated at Lagoon 1 and an area just west of that. The waste is properly disposed of, removing a direct contact hazard.

2004

MDEQ awardes the City of Monroe a Coastal Management Program grant to conduct a field assessment of all open waterways within the city.

2003-2004

MDEQ and EPA conduct a post-navigational dredging study that samples contaminated sediment. PCBs from the turning basin downstream is identified as the primary contamination “hot spot.”

2002

An update to the RAP is published.

• River Raisin Remedial Action Plan

1998

A river assessment is conducted that describes much of the geography, geology, and geomorphology of River Raisin. The report also includes management strategies.

1987

Stage I of the Remedial Action Plan (RAP) is published.

• River Raisin Remedial Action Plan