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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
Vermilion WWTP and Sewer SystemHW:3496011,400 population served2012
Sylvan Beach V EOneidaLakeSD STPHW:3389311,396 population served2012
Logan Township MUA CS_Septics_STPHW:3335111,393 population served2012
BEAUMONT WWTFHW:2622011,384 population served2012
ANTIOCH STPHW:2772211,375 population served2012
WAUPACA WWTPHW:3950011,368 population served2012
INDIANOLA NORTH WWTPHW:2875811,340 population served2012
SPENCER WWTPHW:2905111,317 population served2012
JENNINGS STPHW:3015011,305 population served2012
STURGIS STPHW:3106511,300 population served2012
Union City AC Strub WWTPHW:3753111,300 population served2012
LEBANON STPHW:3002611,293 population served2012
WINSTON GREEN STPHW:3612811,290 population served2012
N KY SD1 EASTERN REGIONAL STPHW:2986111,280 population served2012
PORT WASHINGTON WWTPHW:3939811,272 population served2012
ROCHELLEHW:2781811,267 population served2012
OGUNQUIT WWTFHW:3051311,256 population served2012
Railroad Canyon WWTPHW:2623111,250 population served2012
Pompton Lakes Borough CS_STPHW:3325211,243 population served2012
Southdown WWTPHW:3802011,230 population served2012
SHEPHERDSVILLE WWTPHW:3004111,222 population served2012
ALGONAC STPHW:3092311,209 population served2012
RENO SPARKS WWTFHW:3313111,201 population served2012
NEW CANEY STPHW:3804211,200 population served2012
BERKS MONTGOMERY W SWAMP STPHW:3632411,185 population served2012
MIDDLESBORO STPHW:2988311,184 population served2012
TELL CITY WWTPHW:2833911,175 population served2012
TAFT WWTFHW:2614111,173 population served2012
FT MADISON WWTPHW:2868911,168 population served2012
RIVERTON WWTPHW:3968911,150 population served2012
North Attleborough WWTFHW:3074311,146 population served2012
HOPEWELL TWP RACOON CREEK STPHW:3672111,130 population served2012
ARKANSAS CITY WWTPHW:2922611,100 population served2012
Little Rock Little Maumelle WWTPHW:2541111,089 population served2012
ELK VALLEY PSD WWTPHW:3889011,087 population served2012
UPPER DUBLIN TWP WWTPHW:3699211,059 population served2012
GALAX SEWAGE FACILITYHW:3837711,058 population served2012
South Point WWTP and Sewer SystemHW:3541911,047 population served2012
LEBANON STPHW:3607711,030 population served2012
BOONVILLE WWTPHW:3244611,019 population served2012
MONROE WWTPHW:3933711,015 population served2012
PARSONS WWTPHW:2958711,011 population served2012
MOODY HWY 411 WWTP MoodyHW:2517911,000 population served2012
LINDA WWTFHW:2610911,000 population served2012
EUSTIS STPHW:2678111,000 population served2012
North Bay WWTPHW:2690011,000 population served2012
NEW LENOX CENTRAL STPHW:2760211,000 population served2012
DERIDDER WWTFHW:3012711,000 population served2012
Havre de Grace WWTPHW:3054411,000 population served2012
Espanola City ofHW:3347011,000 population served2012
BJWSA_CHERRY POINTE WWTPHW:3721611,000 population served2008
Freedom District WWTPHW:3053310,998 population served2012
HARTLAND TWP CSHW:3093410,996 population served2012
POTATO CREEK WPCFHW:2710810,975 population served2012
HOUSTON CREEK WWTFHW:2617310,973 population served2012
GETTYSBURG REGIONAL STPHW:3649410,972 population served2012
POQUONOCK STPHW:2656010,950 population served2012
Snoqualmie WWTPHW:3865410,950 population served2012
Rockland Sewer DeptHW:3070610,946 population served2012
Marshfield Dept of Public WorksHW:3074710,943 population served2012
KANAWHA PSD WWTPHW:3888210,923 population served2012
THIRD CREEK WWTPHW:3427410,922 population served2012
ENUMCLAW WWTPHW:3857510,920 population served2012
GRANDVIEW STPHW:3858110,920 population served2012
MARTIN STPHW:3744610,905 population served2012
BLUFFTON WWTPHW:2804810,897 population served2012
UPPER GWYNEDD TWP STPHW:3621310,896 population served2012
CABIN CREEK WPCFHW:2710910,895 population served2012
GROSSE ISLE TOWNSHIP WWTPHW:3118910,894 population served2012
JEROME STPHW:2746510,890 population served2012
HARTSELLE SHOAL CREEK WWTPHW:2504210,865 population served2012
BROOKHAVEN POTWHW:3140610,863 population served2012
CREST HILL STW EASTHW:2759410,861 population served2012
Clinton Town CS_Septics_STPHW:3330610,851 population served2012
WEATHERFORD WWTHW:3577710,833 population served2012
Rio Grande City WWTP 2HW:3772810,830 population served2012
MOSES LAKE STPHW:3861410,820 population served2012
NEWBERRY TWP MUN AUTHHW:3658610,803 population served2012
Sedona WWTFHW:2538010,800 population served2012
WESTWEGO STPHW:3020410,800 population served2012
Jayuya WWTPHW:3975610,800 population served2012
CHENEY S_T FACILITYHW:3869310,790 population served2012
MURPHYSBORO CITY OFHW:2755710,786 population served2012
Seabrook WWTFHW:3321210,783 population served2012
BERWICK AREA STPHW:3660610,774 population served2012
Mount Olive Township Clover Hill STP_CS_SepticsHW:3329910,768 population served2012
Exeter WWTFHW:2607410,761 population served2012
CASSELBERRY STPHW:2668610,750 population served2012
Deltona Lakes STPHW:2689610,750 population served2012
Celanese WWTPHW:3056010,740 population served2012
WAUPUN WWTPHW:3950110,718 population served2012
MCDONOUGH MAIN WPC SYSTHW:2707410,716 population served2012
Arkadelphia WWTPHW:2550310,714 population served2012
MIDDLETOWN BORO STPHW:3633610,705 population served2012
DEVILS LAKE LAGOONHW:3455810,692 population served2012
Van Wert WWTP and Sewer SystemHW:3547410,690 population served2012
IRCUD_West WWTFHW:2677510,686 population served2012
ROCK FALLS STPHW:2757610,685 population served2012
RUMFORD MEXICO S FHW:3044810,684 population served2012
CHESAPEAKE BEACH WWTPHW:3056810,672 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.