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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Oregon

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213 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

213 results

CompareNameNative sizeYear
BAY CITY STPBay City0.37 MGD (million gallons per day)2022
CARLTON STPCarlton0.367 MGD (million gallons per day)2022
ELGIN STPElgin0.36 MGD (million gallons per day)2022
WALDPORT STPWaldport0.36 MGD (million gallons per day)2022
GOLD HILL STPGold Hill0.35 MGD (million gallons per day)2022
AUMSVILLE STPAumsville0.34 MGD (million gallons per day)2022
HUBBARD STPHubbard0.34 MGD (million gallons per day)2022
BOARDMAN STPBoardman0.33 MGD (million gallons per day)2022
YACHATS STPYachats0.33 MGD (million gallons per day)2022
ADAIR VILLAGE STPAlbany0.318 MGD (million gallons per day)2022
DRAIN STPDrain0.3 MGD (million gallons per day)2022
GERVAIS STPGervais0.28 MGD (million gallons per day)2022
DUNDEE STPDundee0.273 MGD (million gallons per day)2022
GLENDALE STPGlendale0.25 MGD (million gallons per day)2022
GOVERNMENT CAMP STPGovernment Camp0.25 MGD (million gallons per day)2022
PILOT ROCK STPPilot Rock0.25 MGD (million gallons per day)2022
RIDDLE STPRiddle0.25 MGD (million gallons per day)2022
YAMHILL STPYamhill0.25 MGD (million gallons per day)2022
JOHN DAY STPJohn Day0.23 MGD (million gallons per day)2022
BROOKS SEWAGE TREATMENT PLANTBrookings0.22 MGD (million gallons per day)2022
LOWELL STPLowell0.22 MGD (million gallons per day)2022
STANFIELD STPStanfield0.22 MGD (million gallons per day)2022
WILLAMINA STPWillamina0.22 MGD (million gallons per day)2022
YONCALLA STPYoncalla0.21 MGD (million gallons per day)2022
SILETZ STPSiletz0.204 MGD (million gallons per day)2022
AMITY STPAmity0.2 MGD (million gallons per day)2022
CHILOQUIN STPChiloquin0.2 MGD (million gallons per day)2022
MYRTLE POINT STPMyrtle Point0.2 MGD (million gallons per day)2022
SALISHAN STPGleneden Beach0.2 MGD (million gallons per day)2022
HALSEY STPHalsey0.197 MGD (million gallons per day)2022
JOSEPH STPJoseph0.18 MGD (million gallons per day)2022
MONROE STPMonroe0.18 MGD (million gallons per day)2022
CLATSKANIE STPClatskanie0.17 MGD (million gallons per day)2022
HEPPNER STPHeppner0.17 MGD (million gallons per day)2022
GLIDE-IDLEYLD PARKRoseburg0.165 MGD (million gallons per day)2022
ARCH CAPE STPArch Cape0.15 MGD (million gallons per day)2022
SISTERS WW TREATMENT IMPROVEMENTSSisters0.15 MGD (million gallons per day)2022
BROWNSVILLE STPBrownsville0.147 MGD (million gallons per day)2022
IRRIGON STPIrrigon0.13 MGD (million gallons per day)2022
CASCADE LOCKS STPCascade Locks0.129 MGD (million gallons per day)2022
PORT ORFORD STPPort Orford0.128 MGD (million gallons per day)2022
MERRILL STPMerrill0.125 MGD (million gallons per day)2022
DONALD STPDonald0.11 MGD (million gallons per day)2022
OAKLAND STPOakland0.11 MGD (million gallons per day)2022
TANGENT STPTangent0.11 MGD (million gallons per day)2022
WALLOWA STPWallowa0.109 MGD (million gallons per day)2022
La Pine Special Sewer DistrictLa Pine0.105 MGD (million gallons per day)2022
MOUNT VERNON STPMount Vernon0.1 MGD (million gallons per day)2022
PARKDALE STPMount Hood Parkdale0.1 MGD (million gallons per day)2022
TWIN ROCKS STPTalent0.1 MGD (million gallons per day)2022
HUNTINGTON STPHuntington0.095 MGD (million gallons per day)2022
MILL CITY SEWAGE SYSTEMMill City0.093 MGD (million gallons per day)2022
SCIO STPScio0.091 MGD (million gallons per day)2022
WEDDERBURN STP.Gold Beach0.09 MGD (million gallons per day)2022
WESTPORT STPWestfir0.09 MGD (million gallons per day)2022
FOSSIL STPFossil0.088 MGD (million gallons per day)2022
AURORA STPAurora0.079 MGD (million gallons per day)2022
BIGGS SERVICE DISTRICT WW TREATMENTRufus0.079 MGD (million gallons per day)2022
FALLS CITY STPFalls City0.077 MGD (million gallons per day)2022
BLY STPBly0.07 MGD (million gallons per day)2022
BONANZA STPBonanza0.07 MGD (million gallons per day)2022
BUTTE FALLS STPButte Falls0.07 MGD (million gallons per day)2022
POWERS STPPowers0.07 MGD (million gallons per day)2022
ST PAUL STPSaint Benedict0.066 MGD (million gallons per day)2022
UKIAH STPUkiah0.065 MGD (million gallons per day)2022
DUFUR STPDufur0.06 MGD (million gallons per day)2022
MOSIER STPMosier0.056 MGD (million gallons per day)2022
MAUPIN STPMaupin0.054 MGD (million gallons per day)2022
PAISLEY STPPaisley0.05 MGD (million gallons per day)2022
RUFUS STPRufus0.05 MGD (million gallons per day)2022
Shoreline Santiary District STPWarrenton0.05 MGD (million gallons per day)2022
GRAND RONDE STPGrand Ronde0.046 MGD (million gallons per day)2022
GARDINER Sanitary DistrictGardiner0.045 MGD (million gallons per day)2022
ECHO STPEcho0.044 MGD (million gallons per day)2022
CLOVERDALE STPCloverdale0.04 MGD (million gallons per day)2022
DEXTER SANITARY SERVICE DISTRICTDexter0.04 MGD (million gallons per day)2022
ADRIAN STPAdrian0.034 MGD (million gallons per day)2022
WESTFIR STPWestfir0.03 MGD (million gallons per day)2022
LONG CREEK STPLong Creek0.03 MGD (million gallons per day)2022
ELKTON STPElkton0.028 MGD (million gallons per day)2022
MITCHELL STPMitchell0.027 MGD (million gallons per day)2022
Port of Tillamook BayTillamook0.02 MGD (million gallons per day)2022
Alpine County Service DistrictMonroe0.02 MGD (million gallons per day)2022
COVE ORCHARD SEWER SERVICE DISTMcminnville0.02 MGD (million gallons per day)2022
BORING STPBoring0.018 MGD (million gallons per day)2022
CAMELLIA PARK SANITARY DISTBrookings0.013 MGD (million gallons per day)2022
WAMIC WATER AND SEWER AUTHORITYMaupin0.012 MGD (million gallons per day)2022
LA GRANDE STPCWNS2022_41000064001Not reported MGD (million gallons per day)Not reported
ARLINGTON STPCWNS2022_41000082001Not reported MGD (million gallons per day)Not reported
ATHENA STPCWNS2022_41000084001Not reported MGD (million gallons per day)Not reported
CONDON STPCWNS2022_41000116001Not reported MGD (million gallons per day)Not reported
COVE STPCWNS2022_41000118001Not reported MGD (million gallons per day)Not reported
CULVER STPCWNS2022_41000120001Not reported MGD (million gallons per day)Not reported
DAYVILLE STPCWNS2022_41000122001Not reported MGD (million gallons per day)Not reported
ENTERPRISE STPCWNS2022_41000137001Not reported MGD (million gallons per day)Not reported
HAINES STPCWNS2022_41000155001Not reported MGD (million gallons per day)Not reported
HALFWAY STPCWNS2022_41000156001Not reported MGD (million gallons per day)Not reported
JORDAN VALLEY STPCWNS2022_41000178001Not reported MGD (million gallons per day)Not reported
LAKEVIEW STPCWNS2022_41000184001Not reported MGD (million gallons per day)Not reported
LOSTINE ON-SITESCWNS2022_41000190001Not reported MGD (million gallons per day)Not reported

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.