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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
SUN PRAIRIE STPHW:3946929,849 population served2012
Clay County Miller Street WWTPHW:2675029,750 population served2012
Oak Ridge STPHW:3747829,750 population served2012
VERNON WPCFHW:2661129,710 population served2012
OKC SOUTH CANADIAN WWTHW:3566129,604 population served2012
UNIONTOWN STPHW:3674229,573 population served2012
Santa Paula WRFHW:2596929,500 population served2012
Glen Cove C STPHW:3352529,500 population served2012
ADRIAN WWTPHW:3101329,471 population served2012
SPRINGVILLEHW:3813629,466 population served2012
BIG BEAR AREA REG WWTFHW:2621429,462 population served2012
LRBSA ARCHBALD STPHW:3644429,437 population served2012
BARTLETT WWTPHW:2771229,430 population served2012
Oregon WWTP and Sewer SystemHW:3532729,410 population served2012
Harpeth Valley UD STPHW:3754929,400 population served2012
GOSHEN WWTPHW:2814629,383 population served2012
Russellville WWTPHW:2543729,298 population served2012
Hancock County U A WAVELAND THW:3164629,263 population served2012
DERRY TWP CLEARWATER STPHW:3635229,213 population served2012
CLINTON WWTPHW:2857829,201 population served2012
FRANKLIN TWP MURRYSVILLE STPHW:3675629,129 population served2012
SHARON CITY STPHW:3690829,090 population served2012
Camuy Hatillo WWTPHW:3975129,048 population served2012
MASON CITY WWTPHW:2886329,040 population served2012
MOUNTAIN VIEW WWTFHW:2583929,000 population served2012
Fort Myers Beach STPHW:2679229,000 population served2012
KEARNEY WWTPHW:3288029,000 population served2012
Johnson City Regional STPHW:3741729,000 population served2012
Peach Street Plant WWTPHW:3785329,000 population served2012
Chocolate Bayou WWTPHW:3800229,000 population served2012
HENRY FORK WWTP HICKORYHW:3417328,945 population served2012
BLUEFIELD Westside WWTPHW:3830928,916 population served2012
Southeast WWTP HoustonHW:3800628,820 population served2012
Westchester Co Peekskill SD STPHW:3369528,759 population served2012
WALLINGFORD WPCFHW:2661228,750 population served2012
MOORESVILLE WWTPHW:3427628,714 population served2012
Gatlinburg WWTPHW:3738828,700 population served2012
BEDFORD TOWNSHIP STPHW:3119328,606 population served2012
NOBLESVILLE WWTPHW:2798428,590 population served2012
ELIZABETHTOWNHW:2988228,533 population served2012
Derry WWTFHW:3320228,478 population served2012
TOLLESON WWTFHW:2533128,445 population served2012
Jacksonville WWTPHW:2542828,364 population served2012
Arapahoe County WWAHW:2642228,300 population served2012
SUPERIOR WWTPHW:3947028,273 population served2012
Kingston C Sewers and WWTPHW:3367228,265 population served2012
Bethlehem T STPHW:3374928,260 population served2012
North Royalton WW District AHW:3532028,250 population served2012
KLAMATH FALLS SPRING STREETHW:3607028,212 population served2012
LAKE STEVENS STPHW:3859728,210 population served2012
MCMINNVILLE WWTPHW:3607328,200 population served2012
HELENA WWTPHW:3251328,190 population served2012
BENSENVILLE MAIN WWTP and COLL SYSTEMHW:2760728,180 population served2012
WHEAT RIDGE STPHW:2633528,176 population served2012
CARBONDALE SEWWTPHW:2754728,160 population served2012
ST VRAIN SDHW:2642428,129 population served2012
Lebanon WWTFHW:3317828,017 population served2012
S MARIN SUBREG OUTFALLHW:2588328,000 population served2012
Alberhill WWTPHW:2623228,000 population served2012
JESSAMINE CREEK ENV CONTROL WWTPHW:2987328,000 population served2012
SOUTH TRUCKEE MEADOWS WWTPHW:3312928,000 population served2012
Millville City CS_Septics_STPHW:3334227,991 population served2012
Westchester CoPort Chester SD STPHW:3369627,967 population served2012
Kent WWTP and Sewer SystemHW:3519227,946 population served2012
GALLATIN STPHW:3738627,917 population served2012
ALAMOGORDO STPHW:3341127,859 population served2012
PIGEON FORGE STPHW:3748527,784 population served2012
REXBURG TREATMENT FACILITYHW:2737627,733 population served2012
Yauco WWTPHW:3977727,704 population served2012
Pemberton Township MUA CS_SepticsHW:3336327,697 population served2012
CANONSBURG HOUSTON JOINT AUTHHW:3669727,662 population served2012
Big Gulch WWTPHW:3862327,656 population served2012
BUTTE SILVER BOW CITY COUNTYHW:3251227,600 population served2012
BOONE WWTPHW:3442527,584 population served2012
NORTHFIELD STPHW:3122227,579 population served2012
NORTHEAST CLAYTON WPCPHW:2701227,568 population served2012
Wildwood City Lower Regional STPHW:3333027,520 population served2012
MOUNTAINTOP LUZERNE STPHW:3642027,500 population served2012
HURRICANE WWTPHW:3898227,500 population served2012
PHENIX CITY WWTPHW:2511727,473 population served2012
MADISONVILLE STPand CSHW:2990827,467 population served2012
ROCKY RIVER WW TRT PLANTHW:3717027,382 population served2008
RANTOUL EASTSIDE STPHW:2758827,379 population served2012
Keene WWTFHW:3324027,375 population served2012
LANCASTER AREA SEWER AUTH STPHW:3629827,273 population served2012
Troy WWTP and Sewer SystemHW:3545327,220 population served2012
FREEPORT STPHW:2757527,218 population served2012
BURLINGTON WWTPHW:2854027,208 population served2012
ATWATER WWTFHW:2604527,205 population served2012
PARKWAY STPHW:3054627,202 population served2012
STEVENS POINT STPHW:3946227,202 population served2012
O Fallon CityHW:2785127,190 population served2012
GARDEN CITY WWTPHW:2980627,175 population served2012
Bentonville WWTPHW:2557527,165 population served2012
TORRINGTON MAIN WPCFHW:2661027,150 population served2012
SALMON CREEK STP 1HW:3865727,126 population served2012
BELLE GLADE STPHW:2671927,089 population served2012
GREATER GREENSBURG STPHW:3674127,080 population served2012
Wooster WWTP and Sewer SystemHW:3552127,069 population served2012
Niles WWTP and Sewer SystemHW:3531627,013 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.