Laserfiche WebLink
Round Lake <br />Meeting Summary <br />May 16, 2011 <br />The Arden Hills City Council invited representatives of the U.S. Army, Minnesota Pollution <br />Control Agency, and the U.S. Fish and Wildlife Service tothe May 16, 2011, City Council work <br />sessionmeeting.The City Council and invited agency representatives discussed plans to identify <br />a remedy for sediment contamination at Round Lake. <br />Agency Representatives <br />Mike Fix, U.S. Army Commander’s Representative <br />The U.S. Army (Army) is the responsible party for contamination associated with the Twin <br />Cities Army Ammunition Plan (TCAAP)site. <br />Charles Blair, Refuge Manager, U.S. Fish and Wildlife Service <br />The U.S. Fish and Wildlife Service (USFWS) purchased Round Lake in 1974 and is mandated to <br />manage the lake as a productive waterfowl area. <br />Deepa DeAlwis, Project Leader Superfund Program, Minnesota Pollution Control Agency <br />The U.S. Environmental Protection Agency (EPA) has ultimate authority over the cleanup of the <br />TCAAP site. The Minnesota Pollution Control Agency (MPCA) acts as the EPA’s local agent. <br />Background <br />Environmental contamination was discovered at TCAAP in 1981, and the site was placed on the <br />National Priorities List (NPL) in 1983. As a Superfund site, the investigation and mitigation of <br />contaminants at TCAAP is governed by the Comprehensive Environmental Response, <br />Compensation and Liability Act of 1980 (CERCLA). <br />In 1984 an Ecological Risk Assessment (ERA) was completed for Round Lake. The ERA <br />determined that there were unacceptable ecological risks atRound Lake that must be addressed <br />by the Army. Between 1984 and 2010, little activity occurred related to Round Lake. The <br />EPA’s and MPCA’s first priority were situations in which there was an immediate risk to human <br />health such as the groundwater contamination that affected New Brighton’s and St. Anthony’s <br />water supply. <br />The water in Round Lake has been tested and has met State standards, but testing has shown that <br />organisms in the sediment layer such as worms, clams, snails, and bugsare being damaged. <br />Some of these organisms spend part of their life cycle in the sediment, but then rise into water or <br />air and become part of the larger ecosystem. It is the view of the USFWSthat if one part of the <br />ecosystem is adversely impacted, the entire ecosystem suffers. <br />City of Arden Hills <br />1245 West Highway 96 55112 <br />Phone 651.634.5120 <br />www.ci.arden-hills.mn.us <br />