It’s up to all of us to take steps to keep Portland’s water resources clean and healthy. In addition to the work being done by the City and our residents and businesses, a number of community organizations are helping to protect our water resources.

The following organizations play an important role in keeping water clean:
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Casco Bay Estuary Partnership (CBEP)
CBEP is a collaboration of agencies, organizations, and individuals working on behalf of Casco Bay. CBEP is a catalyst for action with the goal of keeping Casco Bay clean and healthy.
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Cumberland County Soil & Water Conservation District (CCSWCD)
CCSWCD works to protect soil and water resources within Cumberland County. CCSWCD operates through a philosophy of cooperation, collaboration, and collective decision making. They excel in bringing partners together to develop local solutions to local issues.
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Friends of Casco Bay
Friends of Casco Bay works to improve and protect the environmental health of Casco Bay. Their work involves education, advocacy, water quality monitoring programs, and collaborative partnerships.
Maine Board of Pesticides Control (BPC)
The BPC is Maine's lead agency for pesticide oversight. It is part of the Maine Department of Agriculture, Conservation and Forestry. Policy decisions are made by a seven-member, public board.
Maine Department of Environmental Protection (DEP)
DEP is responsible for protecting and restoring Maine’s natural resources and enforcing the State’s environmental laws. The Department administers programs, educates, and makes regulatory decisions that contribute to the achievement of this mission.
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Portland Trails
Portland Trails is a nonprofit land trust that preserves green space for public access and connects people with places. Our goals are to:
  • Create and maintain a 70-mile network of trails in Greater Portland.
  • Engage the participation of neighborhoods, schools, and the business community in trail use and land stewardship.
  • Make Greater Portland a model for people-powered recreation and transportation.
Portland Water District (PWD)
PWD operates and maintains the infrastructure that delivers drinking water to Portland residents from Sebago Lake.

PWD also operates and maintains four wastewater treatment plants, two of which are in Portland.
  • East End Treatment Plant is the largest wastewater facility in Maine that works efficiently and effectively to keep our waters clean and healthy since 1979.
  • Peaks Island Treatment Plant is an award winning facility that prioritizes clean water and a clean environment for Casco Bay.
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Think Blue Maine
The Think Blue Maine Partnership is comprised of regulated municipalities, nested regulated entities, Soil & Water Conservation Districts, and state agencies working together to meet stormwater permit requirements and to make Maine a better place to live. They work statewide but also as four local clusters.