Maine Environmental Laboratory is certified to test storm water to help you comply with Municipal Separate Stormwater Sewer System (MS4) and other regulatory demands.

“Stormwater" means the part of precipitation including runoff from rain or melting ice and snow that flows across the surface as sheet flow, shallow concentrated flow, or in drainageways.

-Maine Department of Environmental Protection General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems




Maine DEP MS4 Stormwater webpage:

Maine DEP Stormwater Program /Waste Discharge Law webpage:

GREAT GENERAL INTEREST: The City of South Portland's Stormwater Management webpages:

A Friends of Casco Bay stencil helps cities meet the 'public education' portion of their stormwater plan.