Maryland 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). Maryland documented needs totaling $13.9 billion in 2008. This is a 92 percent increase from the $7.3 billion in needs documented in 2004. Documented Needs in Maryland Needs (2008 Dollars, Millions) Type of Need 2004 2008 Percent Change Wastewater treatment $3,575 $2,876 -20% Pipe repair and new pipes $2,364 $1,374 -42% Recycled water distribution $1 $2 100% Combined sewer overflow correction $510 $463 -9% Total Wastewater Treatment Needs $6,450 $4,715 -27% Conveyance infrastructure n/a $10 n/a Treatment systems n/a $1,293 n/a Green infrastmcture n/a $1,270 n/a General stormwater management $516 $1,182 129% Total Stormwater Management Needsb $516 $3,755 628% Agriculture (cropland) best management practices (BMPs) nra $65 n/a Agriculture (animals) BMPs nr $161 n/a Silviculture (forestry) BMPs nr nr 0% Ground water protection: unknown source BMPs nr nr 0% Marinas BMPs nr <$0.5 n/a Resource extraction BMPs nr $2 n/a Brownfields remediation nr nr 0% Storage tank remediation $9 nr -100% Sanitary landfills BMPs $177 $19 -89% Hydromodification (Water resource restoration and protection) $90 $218 142% Other estuary management activities0 n/a nr n/a Total Nonpoint Source Control NeedsM $276 $465 68% Total Decentralized Wastewater Treatment Needsb'd $9 $4,971 >1,000%> Total Needs $7,251 $13,906 92%. | aNot reported; Actual needs may be higher, since documenting these needs is difficult; °In 2004, Other Estuary Management Needs were reported under Separate State Estimates (SSEs); dNot included in Official Needs in the Report to Congress. County Needs ($M) None reported "j < 300 300-700 > 700 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. ------- Maryland 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, 54% of Maryland residents received centralized wastewater treatment services at the secondary, advanced, or no discharge treatment level, compared to 40% 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 25 0 0 79,000 2 0 0 0 Secondary 45 62 43 952,000 23 175,038 3 63,461 Advanced 59 88 105 700,000 17 2,868,111 51 3,466,387 No Discharge 0 12 21 0 0 16,913 0 29,208 Total 129 162 169 1,731,000 42 3,060,062 54 3,559,056 a Number of facilities and population served if all needs documented in the CWNS 2008 are met. Small Communities In Maryland, small community wastewater facilities serve 6% of the population and comprise 13% 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 0-999 120 53 $256 $97 1,000-3,499 44 37 $255 $131 3,500-10,000 24 27 $283 $385 Total 188 117 $795 $613 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 ------- |