Clean Watersheds Needs Survey 2012 Distribution of total official needs by State (January 2012 dollars in billions) Total documented needs = $271.0 Billion Range I 1 I 1 I 1 1 1 I 1 >$25B $5-$25B $2.5-$5B $1-$2.5B <$1B Did not participate District of Columbia The Clean Watersheds Needs Survey (CWNS) is a comprehensive assessment of needs 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). Visit www.epa.gov/CWNS for more information. CWNS 2012 District of Columbia documented needs Category Category Percent I Secondary Wastewater Treatment Advanced Wastewater Treatment Conveyance System Repair V Combined Sewer Overflow Correction VI Stormwater Management Program X Recycled Water Distribution IV New Conveyance Systems Category V Combined Sewer Overflow Correction $1,885M, 67.4% Category I Secondary Wastewater Treatment $147IVI, 5.3% Category II Advanced Wastewater Treatment $185M, 6.6% by category (January 2012 dollars in millions). Category III Conveyance System Repair $574M, 20.5% IV New Conveyance Systems Improvements in treatment level of District of Columbia's publicly-owned wastewater treatment plants. Population served in millions (number of facilities) Projected Level of treatment 2004 2008 2012 2032 from 2008-2012 from 2012-2032 Less than Secondary" -(0) -(0) -(0) -(0) - - Secondary -(0) -(0) -(0) -(0) - - Greater than Secondary 1.3(1) 1.6(1) 2.2 (1) 2.5 (1) 34.1% 16.9% No Discharge -(0) -(0) -(0) -(0) - - Partial Treatment -(0) -(0) -(0) -(0) - - Total 1.3(1) 1.6(1) 2.2 (1) 2.5 (1) 34.1% 16.9% 1 Includes facilities granted section 301(h) waivers from secondary treatment for discharges to marine waters. As of January 1, 2012 waivers for 36 facilities in the CWNS 2012 database had been granted or were pending. Total District of Columbia needs for the 2004-2012 CWNS by category (January 2012 dollars in millions). 2200 2000 1800 at c 1600 o 1400 F 1200 L~--' 1000 (U 800 o 600 o 400 200 0 ¦ i l2004 ~ 2008 ~ 2012 IV Needs Category ------- |