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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
Dover WWTFHW:3321324,962 population served2012
Gas House Pike WWTPHW:3059124,898 population served2012
SAN LUIS SBR WESTHW:2539024,888 population served2012
LYMAN WASTE TREATMENT PLAHW:3710224,826 population served2008
AQUIA REGIONAL STPHW:3844224,819 population served2012
New Windsor T SD1 25 and STPHW:3362224,794 population served2012
AUGUSTA SEWAGE TPHW:3039124,767 population served2012
MILLEDGEVILLE WPCPHW:2711124,754 population served2012
DODGE CITY WWTPHW:2974824,723 population served2012
ATHENS WWTPHW:2498424,690 population served2012
DCNR BALD EAGLE STATE PARK STPHW:3697924,659 population served2012
TYRONE BORO STPHW:3662124,631 population served2012
Bridgewater Sewer DepartmentHW:3079624,596 population served2012
THOMASVILLE WPCPHW:2713124,588 population served2012
Bowie Belair WWTPHW:3054924,583 population served2012
SOMERSETHW:2991324,560 population served2012
Big Spring WWTPHW:3769924,528 population served2012
WARNER ROBINS OCMULGEE RIVERHW:2712424,523 population served2012
BRANSON COMPTON DR WWTPHW:3211824,514 population served2012
EAST PEORIA SEWAGE TP 1HW:2766224,500 population served2012
PLANT 2HW:3785424,500 population served2012
OTTUMWA WWTPHW:2894724,488 population served2012
Paris WWTPHW:3789724,460 population served2012
STATESBORO WPCPHW:2711624,342 population served2012
SNYDERVILLE WRD SILVER CREEKHW:3817824,289 population served2012
ELK RIVER SEWAGE PLANTHW:3127824,279 population served2012
OAK HARBOR STPHW:3861924,200 population served2012
Eagle River WSDHW:2631524,192 population served2012
NAUGATUCK WPCFHW:2657324,108 population served2012
MARQUETTE WWTPHW:3101424,099 population served2012
ALVIN WWTPHW:3798024,075 population served2012
Erie Co SD2 WWTP at Big SisterHW:3408524,073 population served2012
ST CHARLES EAST BANK STPHW:3030224,070 population served2012
ARDMORE CENTRAL WWTHW:3554424,060 population served2012
Ridgewood Village WPCF Septics_CS_STPHW:3327924,030 population served2012
LEMOORE STPHW:2612924,000 population served2012
RIVER BEND RD STPHW:2710524,000 population served2012
NORFOLK WWTPHW:3295624,000 population served2012
WEST ALIQUIPPA STPHW:3670524,000 population served2012
COLLIERVILLE STPHW:3734924,000 population served2012
EAGLE PASS STPHW:3764224,000 population served2012
ALLISON STP 1HW:3766124,000 population served2012
Madison Chatham Jt Mtg Molitor WPCFHW:3324823,995 population served2012
El Dorado Hills WWTPHW:2610523,946 population served2012
EMPORIA WWTPHW:2956423,936 population served2012
WATERTOWN STPHW:3949723,895 population served2012
FARIBAULT WWTPHW:3121823,859 population served2012
JACKSONVILLE STPHW:2773923,818 population served2012
Moscow Sewage Treatment PlantHW:2737223,800 population served2012
Cabot WWTPHW:2567123,776 population served2012
ASHEBORO WWTPHW:3435323,729 population served2012
IOWA GREAT LAKES WWTPHW:2920723,637 population served2012
Dickinson WWTP 1HW:3798923,619 population served2012
Gloversville Johnstown C WWTPHW:3380423,574 population served2012
LOWER ALLEN TWP STPHW:3654323,541 population served2012
ABERDEEN STPHW:3853623,515 population served2012
OWOSSO WWTPHW:3101823,506 population served2012
Roseburg Urban Sanitary AuthorityHW:3606623,500 population served2012
Clark Co Southwest Regional WWTPHW:3503623,414 population served2012
HASTINGS TREATMENT PLANTHW:3121123,413 population served2012
CONTENTNEA MSD WWTPHW:3434823,389 population served2012
CRANBERRY TWP BRUSH CK STPHW:3684323,351 population served2012
FT MYERS SOUTH AWTPHW:2678523,350 population served2012
ALGONQUIN WWTFHW:2776323,276 population served2012
HAINES CITY PCFHW:2686223,250 population served2012
MOON TWP MA FLAUGHERTY RUNHW:3680923,120 population served2012
Rochester WWTFHW:3321723,096 population served2012
Evesham Township MUA Elmwood STP_CSHW:3335823,069 population served2012
ROCK SPRINGS WWTPHW:3964723,036 population served2012
St Croix Valley WWTF MCESHW:3121023,016 population served2012
FOUNTAIN HILLS WWTPHW:2533023,000 population served2012
SYKES CREEK REGIONAL PCFHW:2673923,000 population served2012
FT MYERS CENTRAL AWTPHW:2678423,000 population served2012
Northeast Regional WWTFHW:2684723,000 population served2012
Westfield Westside WWTPHW:2844323,000 population served2012
Mahoning Co Boardman WWTPHW:3524823,000 population served2012
EAST BURLINGTON WWTPHW:3412122,984 population served2012
LOWELL WWTPHW:2802622,936 population served2012
RIVERBANK WWTFHW:2601922,924 population served2012
MUSCATINE WWTPHW:2890622,881 population served2012
Searcy WWTPHW:2544422,858 population served2012
DEL CITY WWTHW:3564922,840 population served2012
HASTINGS WWTPHW:3284622,837 population served2012
American Canyon WWTFHW:2586022,809 population served2012
PERU WWTPHW:2774122,806 population served2012
Jackson Street WWTPHW:3795722,800 population served2012
Cumberland County UA Cohansey River STPHW:3333422,771 population served2012
ST AUGUSTINE PLANT NO 1HW:2686522,762 population served2012
SHELBY WWTPHW:3418822,753 population served2012
Savannah WILSHIRE WINDSOR WPCPHW:2704122,741 population served2012
ANNISTON CHOCCOLOCCO WWTPHW:2497822,709 population served2012
HCUA EAST BILOXI POTWHW:3139722,709 population served2012
Eagle River WSD AvonHW:2631722,704 population served2012
LATROBE BORO STPHW:3675822,651 population served2012
WAKE FOREST WWTPHW:3441722,631 population served2012
FRANKLIN STPHW:2800222,627 population served2012
HEMPFIELD TWP MA NEW STANTON STPHW:3673922,619 population served2012
Plattsburgh C WWTPHW:3378522,616 population served2012
ANNISTON FT MCCLELLAN WWTPHW:2497922,600 population served2012
Isla Blanca Park WWTPHW:3764622,600 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.