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The Lower Des Plaines River Watershed is home to a large number of threatened and endangered species. In fact, a majority of the state and federally listed species in Illinois occur within the watershed.
The Lower Des Plaines Ecosystem Partnership was formed to focus on and address issues facing the watershed.
The mission of the Lower Des Plaines Ecosystem Partnership (LDPEP) is to promote, preserve, protect and enhance the natural, cultural, economic and recreational resources of the Lower Des Plaines River and its watershed.  
News
Stakeholders in the Lower Des Plaines River watershed need to be aware of issues currently being discussed about Chloride in the Chicago Area Waterway System. This meeting will address the Chicago Area Waterway Rulemaking (R08-9) Filed with the Illinois Pollution Control Board in October 2007.  
Lower Des Plaines River  – For purposes of the rulemaking the Lower Des Plaines River segment begins at its confluence with CSSC, flows south, and ends at the Interstate-55 bridge crossing.  Lower Des Plaines River is sub-divided in this proposal into two reaches: the Brandon Road Pool (Use B) reach of the Lower Des Plaines River starts at the confluence of the Lower Des Plaines River and CSSC and ends at the Brandon Road Lock and Dam in Rockdale; and Upper Dresden Island Pool (Upper Dresden Island Pool Aquatic Life Use)starts at the Brandon Road Lock and Dam and ends at the Interstate-55 bridge. 
MWRD Website
Presentations:
Chicago Area Waterway System (CAWS) Chloride Reduction Initiative   1-27-15

Chloride Issue in the Chicago Area Waterway System