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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
WEBER COUNTY INDUSTRIAL SERVICE AREA NO 1HW:3821026 population served2012
FENN S_T FACILITYHW:2753025 population served2012
TRAIL OF TEARS SPHW:3176224 population served2012
BABB BLACKFEET IRHW:3262424 population served2012
Moreland Hills Greentree WWTPHW:3528624 population served2012
Richland Co Nelson Bowell RoadHW:3726723 population served2008
FORTUNA LAGOONHW:3458022 population served2012
Richland Co St Andrews TerraceHW:3726822 population served2008
Rio Ramaza WWTFHW:2615620 population served2012
QUARTER MILE HILLS LAGOONHW:3195220 population served2012
Bridger Pines County W and S DistrictHW:3262720 population served2012
Wayne County Airport WWTPHW:3484120 population served2012
Fairway Pines SDHW:2653017 population served2012
Port of Sunnyside Industrial WWTFHW:3877917 population served2012
CROWDER STATE PARKHW:3230616 population served2012
BANKSTON STPHW:2919315 population served2012
ROSEBUD NORTH WWTPHW:3182315 population served2012
BATTLE OF ATHENS SHSHW:3247815 population served2012
WAYNE PIONEER PLAZA WWTPHW:3902715 population served2012
CHURCHS FERRY LAGOONHW:3454612 population served2012
NYC Del_Cro W tshedUpgrade100 wwtpHW:3362810 population served2012
VENTURIA LAGOONHW:3470010 population served2012
BERK CO PSSD NORTHWINDS WWTPHW:388018 population served2012
Richland Co Fairlawn Court AreaHW:372702 population served2008
LAKE SIDE VILLAGE I D WWTPHW:293701 population served2012
Newport Guild Street WWTFHW:332231 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.