Maine Clean Watersheds Needs Survey 2008 The Clean Watersheds Needs Survey (CWNS) is a comprehensive assessment of needs1 to meet the water quality and water-related public health goals of the Clean Water Act (CWA). States and the U.S. Environmental Protection Agency (EPA) conduct the CWNS every four years under CWA Section 516 (b). Maine documented needs totaling $2.4 billion in 2008. This is a 96 percent increase from the $1.2 billion in needs documented in 2004. Documented Needs in Maine Needs (2008 Dollars, Millions) Type of Need 2004 2008 Percent Change Wastewater treatment $294 $324 10% Pipe repair and new pipes $272 $374 38% Recycled water distribution nra nr 0% Combined sewer overflow correction $443 $307 -31% Total Wastewater Treatment Needs $1,009 $1,005 0% Conveyance infrastructure n/a nr n/a Treatment systems n/a nr n/a Green infrastructure n/a $4 n/a General stormwater management $25 $22 -12% Total Stormwater Management Needsb $25 $26 4% Agriculture (cropland) best management practices (BMPs) nr $1 n/a Agriculture (animals) BMPs $28 $20 -29% Silviculture (forestry) BMPs $52 <$0.5 -100% Ground water protection: unknown source BMPs nr nr 0% Marinas BMPs nr nr 0% Resource extraction BMPs nr nr 0% Brownfields remediation nr nr 0% Storage tank remediation $68 nr -100% Sanitary landfills BMPs nr nr 0% Hydromodification (Water resource restoration and protection) $7 nr -100% Other estuary management activities0 n/a nr n/a Total Nonpoint Source Control Needsb'd $155 $21 -86% Total Decentralized Wastewater Treatment Needsb'd $23 $1,323 >1,000% Total Needs $1,212 $2,375 96% aNot reported; bActual needs may be higher, since documenting these needs is difficult; cIn 2004, Other Estuary Management Needs were reported under Separate State Estimates (SSEs); dNot included in Official Needs in the Report to Congress. County Needs ($M) None reported <90 90-150 > 150 1 Documented needs in the CWNS include the unfunded capital costs of projects as of January 1,2008 that address a water quality or a water quality-related public health problem existing as of January 1,2008, or expected to occur within the next 20 years; and meet the seven CWNS documentation criteria. All needs are in January 2008 dollars. ------- Maine Clean Watersheds Needs Survey 2008 Wastewater Treatment Facilities The enactment of the Clean Water Act (CWA) in 1972 resulted in dramatic improvements in the: • Number of wastewater treatment plants. • Percentage of the population served by wastewater treatment plants. • Quality of effluent treatment from wastewater treatment facilities. In 2008, 46% of Maine residents received centralized wastewater treatment services at the secondary, advanced, or no discharge treatment level, compared to 23% in 1972. Number of Centralized Treatment Facilities and Population Served Number of Facilities Population Served %Total %Total Population Population Treatment Level 1972 2008 Projected" 1972 1972 2008 2008 Projected3 Less than Secondary 15 12 10 77,000 7 11,043 1 7,082 Secondary 37 113 110 187,000 18 582,591 44 566,599 Advanced 17 3 9 60,000 6 23,848 2 58,502 No Discharge 0 7 10 0 0 3,172 <1 18,087 Total 69 135 139 324,000 31 620,654 47 650,270 a Number of facilities and population served if all needs documented in the CWNS 2008 are met. Small Communities In Maine, small community wastewater facilities serve 27% of the population and comprise 43% of total wastewater treatment and collection needs. EPA small community support information is available at: www. epa. gov/owm/mab/smcomm Reported Needs for Facilities in Small Communities Facilities 1 Needs (2008 Dollars, Millions) Population 2004 2008 2004 2008 0-999 10 30 $44 $84 1,000-3,499 38 39 $166 $201 3,500-10,000 25 15 $102 $148 Total 73 84 $311 $433 Visit www.epa.gov/cwns for more information including: • Detailed Reports to Congress • Other state fact sheets • Maps, charts, and data downloads for projects, facilities, watersheds, counties, congressional districts, cities, states, and regions ------- |