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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
SHEBOYGAN REGIONAL WWTPHW:3944171,886 population served2012
NORTHERN DISTRICT WWTFHW:3974171,250 population served2012
South Tahoe WWTFHW:2616571,012 population served2012
Sarasota County Consolidated WWTFHW:2688171,000 population served2012
WOONSOCKET REGIONAL WWTFHW:3706870,951 population served2012
WAUKESHA STPHW:3949870,867 population served2012
HUNTINGTON WWTPHW:3881970,794 population served2012
WATERLOO WWTPHW:2911370,784 population served2012
MONTGOMERY ENCONCHATE WWTPHW:2506670,678 population served2012
EDMOND COFFEE CREEK WWTHW:3565370,520 population served2012
North Tonawanda C WWTPHW:3410370,484 population served2012
SO SAN LUIS OB CO WWTFHW:2592870,358 population served2012
McAllen WWTP 2HW:3763170,000 population served2012
Longview Main WWTPHW:3789570,000 population served2012
MORRISTOWN WWTPHW:3746069,766 population served2012
North WWTP BrownsvilleHW:3761869,300 population served2012
LOWER LACKAWANNA VLY STPHW:3643869,261 population served2012
Western Monmouth UA Pine Brook STP_CSHW:3329668,947 population served2012
GLENBARD WASTEWATER AUTHORITYHW:2778568,888 population served2012
LONG CREEK Gastonia WWTPHW:3423368,533 population served2012
TUPELO POTWHW:3163268,294 population served2012
LOVELAND WWTPHW:2636068,203 population served2012
POCATELLO STPHW:2736368,177 population served2012
PONTIAC STPHW:3096468,164 population served2012
SUMMERVILLE LAGOONHW:3714168,000 population served2008
LOXAHATCHEE R REG STPHW:2671867,951 population served2012
Concord Hall Street WWTFHW:3319567,906 population served2012
SAGINAW STPHW:3099067,814 population served2012
SAND CREEK WWTPHW:2629667,783 population served2012
Pittsfield Dept of Public WorksHW:3072167,601 population served2012
CAPE CORAL EVEREST WWTPHW:2678867,500 population served2012
BENTON HARBOR ST JOSEPHHW:3100567,471 population served2012
Lorain Black River WWTPHW:3522667,371 population served2012
Nantucket Wastewater SystHW:3077967,036 population served2012
NORTHWEST REGIONAL WRF at FOX LAKEHW:2759066,801 population served2012
Greer_Maple Creek PlantHW:3719566,500 population served2008
BOWLING GREEN MUNICIPAL UTILITIESHW:2991266,450 population served2012
Nashville White s Creek WWTPHW:3747066,426 population served2012
SALISBURY WWTFHW:3064266,400 population served2012
Evansville EASTSIDE WWTPHW:2810466,341 population served2012
MADERA STPHW:2608166,113 population served2012
Flagstaff Wildcat Hill WWTFHW:2528266,000 population served2012
Davis WPCPHW:2608565,890 population served2012
ALTAMONTE SPGS MAIN STPHW:2668765,852 population served2012
Aguadilla Regional WWTPHW:3975965,649 population served2012
Sumter_Pocotaligo River PlantHW:3717265,635 population served2008
LARGO STPHW:2670265,500 population served2012
NORWALK WPCFHW:2658265,435 population served2012
CASPER WWTPHW:3964565,169 population served2012
Miller Avenue WWTPHW:3741065,000 population served2012
Carter s Creek WWTPHW:3775565,000 population served2012
Watsonville WWTFHW:2591064,622 population served2012
Kankakee River Metropolitan AgencyHW:2756964,513 population served2012
SCHWARTZ PLANT G WWTPHW:3722264,494 population served2008
VALLEY FORGE SEWER AUTHHW:3620864,451 population served2012
SOUTH COUNTY REGIONAL WWTFHW:2675964,310 population served2012
ROME WPCPHW:2711564,270 population served2012
LOWER REEDY RIVER PLANTHW:3723164,127 population served2008
WESTSIDE STP 2HW:3789264,000 population served2012
NEW LOWER MERAMEC WWTPHW:3174563,992 population served2012
PRBRSA Two Bridges SA CS_STPHW:3325163,947 population served2012
JACKSON WWTPHW:3100063,888 population served2012
Butler Co LeSourdsville WWTPHW:3500963,640 population served2012
Florence_Main PlantHW:3720163,600 population served2008
South Adams County WSDHW:2629863,530 population served2012
JANESVILLE WWTPHW:3926963,479 population served2012
REHOBOTH BEACH STPHW:2663263,281 population served2012
SOUTH DAVIS SD NORTHHW:3816163,152 population served2012
MNWD WWTP 3 AHW:2626463,100 population served2012
Edinburg WWTPHW:3762763,080 population served2012
KISKI VALLEY WPCAHW:3674463,064 population served2012
Macon ROCKY CREEK WPCPHW:2701163,059 population served2012
FOND DU LAC REGIONAL WWTPHW:3922162,965 population served2012
Warren WWTP and Sewer SystemHW:3548262,887 population served2012
J A LOUGHLIN WWTPHW:3432562,813 population served2012
Tri Cities North Regional WWTPHW:3502562,808 population served2012
Desoto County Regional Utility Authority Short Fork POTWHW:3145162,763 population served2012
Falkenburg AWTPHW:2670162,750 population served2012
LOTT Budd Inlet Treatment PlantHW:3862162,444 population served2012
BEND WRFHW:3606562,342 population served2012
HUNTSVILLE WESTERN AREA WWTPHW:2504962,300 population served2012
South Beaches Regional STPHW:2674162,225 population served2012
MASSAPONAX CREEK STPHW:3839262,200 population served2012
GWINNETT CROOKED CREEK STPHW:2702862,071 population served2012
LAS CRUCES STPHW:3341862,047 population served2012
CUMBERLAND WWTPHW:3056661,876 population served2012
FRANKLIN STPHW:3738361,774 population served2012
Chicopee Water Pollution ControlHW:3072861,707 population served2012
BISMARCK WWTPHW:3444561,272 population served2012
PASCO STPHW:3863261,193 population served2012
Hamilton WRF and Sewer SystemHW:3516161,171 population served2012
Mt Pleasant_Rifle Range RoadHW:3725661,000 population served2008
IOWA CITY SOUTH WWTPHW:2876160,780 population served2012
SARASOTA WWTPHW:2687960,750 population served2012
MARYSVILLE LAGOONHW:3860560,660 population served2012
COBB NOONDAY CREEK WPCPHW:2702360,314 population served2012
WARWICK WWTFHW:3706560,224 population served2012
UNIV AREA JA SPRING CREEK STPHW:3661360,132 population served2012
COLTON WWTFHW:2622860,100 population served2012
PORTLAND EAST END WWTFHW:3038660,081 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.