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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in the United States

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14,626 inventory records · HydroWASTE v1.0 / United States

Data years: 2008, 2012. The inventory date does not establish current operation.

States

14,626 results

CompareNameNative sizeYear
Upper Monument Creek Regional WWTPHW:2643927,000 population served2012
Billerica Dept of Public WorksHW:3071027,000 population served2012
OWATONNA WWTPHW:3122327,000 population served2012
DOSHIER FARMS WWTPHW:3773427,000 population served2012
NORTHEAST WWTP HICKORYHW:3417226,971 population served2012
WINDSOR WWTFHW:2580526,950 population served2012
SUMNER STPHW:3866426,950 population served2012
Stillwater WWTFHW:2604126,900 population served2012
Middletown C WWTPHW:3361526,888 population served2012
WAYNESBORO STPHW:3847126,842 population served2012
Colonie T Mohawk River WPCPHW:3370626,800 population served2012
MSD Taylor Creek Drainage BasinHW:3516726,767 population served2012
Alexandria Lakes Area SDHW:3137426,753 population served2012
Deer Creek WWTPHW:2610426,670 population served2012
San Elijo WRFHW:2625026,600 population served2012
TITUSVILLE NORTH PLANTHW:2673526,585 population served2012
KCK WWTP 20 WWTPHW:2936826,550 population served2012
MAGNA WIDHW:3814926,505 population served2012
Hardin Co Water District 1 RadcliffHW:3003726,504 population served2012
Upper Gilleland Creek WWTPHW:3774926,500 population served2012
Clermont Co Middle East Fork WWTPHW:3503926,489 population served2012
NILES WASTEWATER TREAT PLHW:3100626,459 population served2012
North Little Rock Faulkner LakeHW:2541426,417 population served2012
MSD Polk Run Drainage BasinHW:3523326,404 population served2012
BRADFORD CITY STPHW:3686526,403 population served2012
Lake Jackson WWTPHW:3798326,380 population served2012
Marshall WWTPHW:3789626,350 population served2012
WEST FARGO LAGOONHW:3445326,312 population served2012
Alliance WWTP and SewersHW:3480326,253 population served2012
West Memphis WWTPHW:2542226,245 population served2012
Bernards Township SA CS_Septic_STPHW:3328426,229 population served2012
GTR POTTSVILLE AREA MAIN STPHW:3633326,183 population served2012
STARKVILLE POTWHW:3161626,181 population served2012
LAFAYETTE EAST SEWAGE PLANTHW:3015426,154 population served2012
City of CarlsbadHW:3348926,138 population served2012
Sewer District 300 HinckleyHW:3526626,114 population served2012
Paragould WWTPHW:2544126,113 population served2012
GALT WWTFHW:2600826,093 population served2012
BATAVIA STPHW:2774526,045 population served2012
JOHNSONVILLE EAST STPHW:3709926,041 population served2008
MARSHALLTOWN WWTPHW:2885926,009 population served2012
Sycamore North WWTPHW:2793726,000 population served2012
INDIANA BORO STPHW:3671626,000 population served2012
PLUM BORO MA HOLIDAY PK STPHW:3683126,000 population served2012
Greenville WWTPHW:3789426,000 population served2012
PRINCETON WWTPHW:3893026,000 population served2012
Georges Creek WWTPHW:3723925,975 population served2008
ROANOKE RAPIDS SDHW:3425825,960 population served2012
PONCA CITY MUNICIPAL WWTHW:3555525,919 population served2012
FT DODGE WWTPHW:2868825,894 population served2012
Barstow WRFHW:2616625,850 population served2012
OLATHE CEDAR CREEK WWTPHW:2938825,843 population served2012
Livingston Twp STPHW:3327025,806 population served2012
MORRISVILLE BORO MUN AUTHHW:3622825,764 population served2012
EAGLE RIVER WWTPHW:2526025,693 population served2012
CARTERSVILLE WPCPHW:2715925,693 population served2012
GAFFNEY_CLARY CREEK PLANTHW:3717125,682 population served2008
HOLLY SPRINGS WWTPHW:3441925,661 population served2012
Avon Lake WPCF and SewersHW:3497425,645 population served2012
SOUTHINGTON WPCFHW:2659825,615 population served2012
Solon Central WWTP and Sewer SystemHW:3541525,600 population served2012
Portsmouth WWTFHW:3320925,578 population served2012
WISCONSIN RAPIDS STPHW:3952425,553 population served2012
OCEAN ISLE BEACH WWTPHW:3414925,550 population served2012
Clearwater East AWWTPHW:2670425,536 population served2012
NORWICH WPCFHW:2658325,530 population served2012
COLUMBUS POTWHW:3143425,514 population served2012
Land O Lakes WWTFHW:2684225,510 population served2012
RIVERVIEW SA CORAOPOLIS STPHW:3674625,510 population served2012
OPELIKA EASTSIDE WWTPHW:2507525,500 population served2012
MILLVILLE STPHW:2672525,500 population served2012
DUCKETT CREEK WWTP 2HW:3196225,500 population served2012
Hoosac Water Pollution ControlHW:3069625,485 population served2012
NEUSE RIVER NEW BERN WWTPHW:3419725,461 population served2012
SUNBURY STPHW:3659725,425 population served2012
Fremont WPCC and Sewer SystemHW:3511325,395 population served2012
Phillipsburg Town CS_Septics_ WWTPHW:3339025,350 population served2012
AUSTIN WWT FACILITYHW:3121525,333 population served2012
SALINE CREEK REGIONAL WWTFHW:3188825,322 population served2012
Portsmouth Lawson Run WWTP and SewersHW:3536925,292 population served2012
Conway Stone Dam Creek WWTPHW:2543225,283 population served2012
MSD Sycamore Creek Drainage BasinHW:3516625,223 population served2012
WESTBROOK WWTFHW:3038825,203 population served2012
MOLINE NORTH SLOPE SEWAGEHW:2767025,202 population served2012
Olean C WWTPHW:3406225,115 population served2012
JACKSONVILLE BEACH STPHW:2665825,023 population served2012
RENO STEAD WRFHW:3312725,010 population served2012
BARTOW WRFHW:2684325,005 population served2012
Corona WWTP 3HW:2622525,000 population served2012
ROCKLEDGE STPHW:2673225,000 population served2012
Sandhill WWTPHW:2695925,000 population served2012
BLOOMINGDALE VILLAGE OFHW:2761325,000 population served2012
MSD HITE CREEK STPHW:2985325,000 population served2012
BRUNSWICK STPHW:3039525,000 population served2012
Huntington T STP and CollectionHW:3355725,000 population served2012
HIGH POINT WESTSIDE WWTPHW:3425025,000 population served2012
Spring Hill STPHW:3751825,000 population served2012
San Juan WWTPHW:3763525,000 population served2012
Cleburne WWTPHW:3784325,000 population served2012
GRAYSVILLE PRUDES CR WWTPHW:2503624,999 population served2012

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.