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

Wastewater treatment plants in United States · California

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486 inventory records · HydroWASTE v1.0 / United States

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

486 results

CompareNameNative sizeYear
Cutler Orosi WWTFHW:2609013,190 population served2012
RED BLUFF WWTFHW:2614813,147 population served2012
Crescent City WWTFHW:2580813,070 population served2012
Alan Horton WWTFHW:2619813,000 population served2012
MCKINLEYVILLE WWTFHW:2579212,900 population served2012
Corcoran WWTFHW:2610312,721 population served2012
TWAIN HARTE WWTFHW:2605312,648 population served2012
AUBURN WWTFHW:2599912,634 population served2012
Rosamond WWTFHW:2618212,600 population served2012
FORTUNA WWTFHW:2578812,207 population served2012
Blythe Regional WWTFHW:2619012,155 population served2012
SCOTTS VALLEY WWTFHW:2588812,121 population served2012
RUNNING SPRINGS WWTFHW:2622912,065 population served2012
Hughson WWTFHW:2604712,000 population served2012
Ralph W Chapman WRFHW:2624412,000 population served2012
COALINGA WWTFHW:2612011,868 population served2012
CALIF MENS COLONY WWTFHW:2592211,637 population served2012
PATTERSON WWTFHW:2606011,606 population served2012
DONNER SUMMIT WWTFHW:2600311,534 population served2012
HEALDSBURG WWTFHW:2582511,442 population served2012
BEAUMONT WWTFHW:2622011,384 population served2012
Railroad Canyon WWTPHW:2623111,250 population served2012
TAFT WWTFHW:2614111,173 population served2012
LINDA WWTFHW:2610911,000 population served2012
HOUSTON CREEK WWTFHW:2617310,973 population served2012
Exeter WWTFHW:2607410,761 population served2012
Gafner Water Reclamation PlantHW:2624310,654 population served2012
NEWMAN WWTFHW:2607510,567 population served2012
Hangtown Creek WWTPHW:2613810,335 population served2012
CLOVERDALE WWTFHW:258049,629 population served2012
MONTECITO WWTFHW:259159,500 population served2012
Anderson WWTFHW:259869,500 population served2012
LARKFIELD WIKIUP WWTFHW:258309,306 population served2012
Santa Maria Reclamation PlantHW:262499,300 population served2012
ARVIN WWTFHW:260629,200 population served2012
Pismo Beach WWTFHW:258999,175 population served2012
SHASTA LAKE WWTFHW:260939,008 population served2012
LAKEPORT SOUTH WWTFHW:260638,590 population served2012
RODEO WWTFHW:258678,515 population served2012
LINDSAY WWTFHW:259988,450 population served2012
SOLVANG WWTFHW:259088,334 population served2012
Live Oak WWTPHW:259878,247 population served2012
GONZALES WWTFHW:259248,187 population served2012
Chowchilla WWTPHW:260028,040 population served2012
EARLIMART WWTFHW:260048,000 population served2012
CALIPATRIA WWTFHW:261877,980 population served2012
ORANGE COVE WWTFHW:259857,722 population served2012
IONE WWTFHW:260507,466 population served2012
Russian River County WWTFHW:258017,377 population served2012
WINTERS WWTFHW:260967,300 population served2012
Yreka WWTFHW:258097,290 population served2012
Fort Bragg WWTPHW:258007,273 population served2012
Willits WWTFHW:257997,200 population served2012
Woodlake WWTFHW:259937,100 population served2012
GUADALUPE WWTFHW:259267,000 population served2012
DISCOVERY BAY WWTFHW:259847,000 population served2012
Marin Co SD 5 WWTFHW:258656,849 population served2012
Corning WWTPHW:261026,825 population served2012
ORLAND WWTFHW:261366,815 population served2012
WATERFORD WWTPHW:260256,700 population served2012
Silver Lakes WWTFHW:261816,700 population served2012
Cambria WQCPHW:259006,500 population served2012
Mule Creek State Prison WWTFHW:260496,500 population served2012
Lake Wildwood WWTPHW:261586,366 population served2012
HURON WWTFHW:260106,306 population served2012
AVALON WWRFHW:259616,300 population served2012
WILLOWS WWTFHW:259956,107 population served2012
ST HELENA WWTFHW:258715,875 population served2012
Alturas WWTPHW:260985,752 population served2012
Colusa WWTPHW:260005,670 population served2012
BASS LAKE WWTFHW:259975,630 population served2012
Calistoga WWTPHW:258595,629 population served2012
MCFARLAND WWTFHW:259725,596 population served2012
Gustine WWTFHW:261245,548 population served2012
Rancho Santa Fe WWTFHW:262455,388 population served2012
AVENAL WWTFHW:261115,360 population served2012
Planada WWTFHW:260185,298 population served2012
FRANKLIN WWTFHW:260065,250 population served2012
Williams WWTFHW:259945,245 population served2012
HOLTVILLE WWTFHW:261925,240 population served2012
ANGELS CAMP WWTFHW:260795,030 population served2012
HILMAR WTPHW:261265,000 population served2012
Imperial Commun Colleges Dist WWTFHW:262005,000 population served2012
Treasure Island WWTFHW:258444,818 population served2012
JACKSON WWTFHW:260424,796 population served2012
MOJAVE WWTFHW:261834,751 population served2012
IVANHOE WWTFHW:260124,700 population served2012
FIREBAUGH WWTFHW:260054,666 population served2012
ESCALON WWTFHW:260664,437 population served2012
Lake of the Pines WWTPHW:261494,192 population served2012
IMPERIAL WWTFHW:261934,188 population served2012
SUTTER CREEK WWTFHW:260564,019 population served2012
WEAVERVILLE WWTFHW:257824,000 population served2012
C and H SUGAR JOINT WWTPHW:258474,000 population served2012
RIO VISTA WWTFHW:261073,992 population served2012
WOODBRIDGE WWTFHW:260703,765 population served2012
SAN SIMEON ACRES WWTFHW:259043,750 population served2012
Mt Shasta WWTFHW:260653,703 population served2012
QUINCY TREATMENT PLANTHW:261003,688 population served2012
HIDDEN VALLEY LAKE WWTFHW:261193,660 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.