Ramsey-Washington Watershed District
Especially this page about How to Improve Water Quality

About Lake Phalen
Ramsey Washington Metro Watershed District

Chloride and Water Quality
Minnesota Pollution Control Agency

City of Maplewood, Public Works Utilities, Storm Sewer Drainage

City of Maplewood, Living Streets Policy

ArcGIS Online Maps for the City of Maplewood

City of Maplewood Parks and Recreation

Erosion and Sediment Control (Minnesota Pollution Control Agency) 

Environmental Protection Agency Stormwater Information

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