Ecological Services: Environmental Contaminants
Midwest Region

 

 

Michigan Minnesota Wisconsin Michigan Minnesota Wisconsin Michigan Minnesota Wisconsin Map of Region 3 Michigan Minnesota Wisconsin

 


Connect With Us


Facebook

twitter
Flickr YouTube
RSS

 


 

Buy Duck Stamps icon

 

Great Lakes Restoration Initiative Logo

 

 

Featured Story

Ecological Services Biologists Begin Characterization of St. Louis River AOC Munger Landing Site

Sediement sampling in St. Louise river wetlands, in Minnesota.

Sampling sediment in the St. Louis River wetlands.

Photo bySteve Choy; USFWS

 

 

Biologists from the Twin Cities and Green Bay Ecological Services Field Offices went to the St. Louis River Area of ConcernĀ  the week of May 9 to collect sediment samples as part of a site characterization of the Munger Landing wetlands. These shoreline wetlands are located approximately 10 river miles upstream of the Duluth entry from Lake Superior and have been mostly disconnected from the river by an existing rail line and supporting levy. The fate of the rail line is currently being decided; if discontinued, there would be an opportunity to remove the levy, restoring aquatic habitat connectivity and significantly enhancing this important riverine/coastal wetland habitat. A preliminary sediment characterization revealed elevated concentrations of contaminants in a large shoal area off of the main river channel adjacent to the wetlands. The site characterization will evaluate chemical concentrations and associated risks to fish and wildlife resources through toxicity and bioaccumulation exposures, assess aquatic vegetation and benthic macroinvertebrate communities, and create a watershed assessment. The goal of the assessment is to inform and influence pending remedial decisions for the shoal area, advance a more holistic ecological vision for the area once the fate of the rail line is determined, and advance the recovery of the St. Louis River Area of Concern.

 

Continue reading Ā»



News Archives

 

Midwest Ecological Services Home

 
Last updated: July 19, 2016