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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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183 inventory records · HydroWASTE v1.0 / United States

Data years: 2012. The inventory date does not establish current operation.

183 results

CompareNameNative sizeYear
Klamath County School DistrictHW:360251,595 population served2012
MILL CITY SEWAGE SYSTEMHW:361491,585 population served2012
PILOT ROCK STPHW:361691,540 population served2012
CARLTON STPHW:361001,514 population served2012
BROWNSVILLE SOUTH LAGOONHW:360941,500 population served2012
BROWNSVILLE STPHW:360951,500 population served2012
ROCKAWAY BEACH STPHW:361771,500 population served2012
AMITY STPHW:360821,490 population served2012
GOLD HILL STPHW:361251,472 population served2012
GARIBALDI STPHW:361221,373 population served2012
BAY CITY STPHW:360881,295 population served2012
HEPPNER STPHW:361321,290 population served2012
ATHENA STPHW:360851,265 population served2012
SILETZ STPHW:361881,197 population served2012
YACHATS STPHW:362021,194 population served2012
DRAIN STPHW:361151,151 population served2012
PRAIRIE CITY STPHW:361721,145 population served2012
PORT ORFORD STPHW:361701,135 population served2012
CASCADE LOCKS STPHW:361011,130 population served2012
YAMHILL STPHW:362031,119 population served2012
GLENDALE STPHW:361231,109 population served2012
MAUPIN STPHW:361471,108 population served2012
SALISHAN STPHW:361801,102 population served2012
YONCALLA STPHW:362051,047 population served2012
LOWELL STPHW:361441,010 population served2012
GRAND RONDE STPHW:361271,000 population served2012
AURORA STPHW:36086970 population served2012
OAKLAND STPHW:36162940 population served2012
TANGENT STPHW:36193930 population served2012
BONANZA STPHW:36092897 population served2012
CULVER STPHW:36109850 population served2012
CHILOQUIN STPHW:36103795 population served2012
METOLIUS STPHW:36148780 population served2012
CONDON STPHW:36107770 population served2012
HALSEY STPHW:36130740 population served2012
GOVERNMENT CAMP STPHW:36126711 population served2012
SCIO STPHW:36181710 population served2012
MOUNT VERNON STPHW:36154695 population served2012
ECHO STPHW:36117690 population served2012
POWERS STPHW:36171689 population served2012
DONALD STPHW:36114640 population served2012
COVE STPHW:36108625 population served2012
ADAIR VILLAGE STPHW:36061615 population served2012
ARLINGTON STPHW:36084610 population served2012
MONROE STPHW:36152610 population served2012
DUFUR STPHW:36116600 population served2012
FOSSIL STPHW:36121545 population served2012
HUNTINGTON STPHW:36136520 population served2012
NESKOWIN REGIONAL SANITARY AUTHORTHW:36157510 population served2012
DEXTER SANITARY SERVICE DISTRICTHW:36113505 population served2012
BIGGS SERVICE DISTRICT WW TREATMENTHW:36089495 population served2012
NORTH POWDER STPHW:36160490 population served2012
BUTTE FALLS STPHW:36097439 population served2012
MOSIER STPHW:36153430 population served2012
PARKDALE STPHW:36166416 population served2012
HALFWAY STPHW:36129408 population served2012
BROOKS SEWAGE TREATMENT PLANTHW:36093398 population served2012
WESTPORT STPHW:36206355 population served2012
ST PAUL STPHW:36046354 population served2012
Shoreline Santiary District STPHW:36187350 population served2012
ARCH CAPE STPHW:36083328 population served2012
LOSTINE ON SITESHW:36143304 population served2012
MITCHELL STPHW:36151270 population served2012
RUFUS STPHW:36179270 population served2012
BLY STPHW:36090250 population served2012
JORDAN VALLEY STPHW:36137250 population served2012
PAISLEY STPHW:36165250 population served2012
RICHLAND STPHW:36176250 population served2012
UKIAH STPHW:36194245 population served2012
CLOVERDALE STPHW:36106240 population served2012
SENECA STPHW:36183215 population served2012
BORING STPHW:36207200 population served2012
Alpine County Service DistrictHW:36168191 population served2012
ELKTON STPHW:36119180 population served2012
LONG CREEK STPHW:36142177 population served2012
SUMPTER STPHW:36190175 population served2012
UNITY STPHW:36197173 population served2012
WESTFIR STPHW:36058160 population served2012
DAYVILLE STPHW:36111160 population served2012
ADRIAN STPHW:36081140 population served2012
COVE ORCHARD SEWER SERVICE DISTHW:36204118 population served2012
WAMIC WATER AND SEWER AUTHORITYHW:36185100 population served2012
CAMELLIA PARK SANITARY DISTHW:3620090 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.