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

Wastewater treatment plants in United States · Idaho

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180 inventory records · HydroWASTE v1.0 / United States

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

180 results

CompareNameNative sizeYear
HEYBURN STATE PARK S_T FAHW:27501192,882 population served2012
BOISE CITY OF WEST BOISEHW:27367145,583 population served2012
BOISE CITY OF LANDER STREETHW:27366122,600 population served2012
NAMPA STPHW:2737081,557 population served2012
MERIDIAN STPHW:2737375,092 population served2012
IDAHO FALLS STPHW:2736973,459 population served2012
POCATELLO STPHW:2736368,177 population served2012
COEUR D ALENE S_T PLANTHW:2736849,306 population served2012
TWIN FALLS STPHW:2736547,389 population served2012
CALDWELL SEWAGE TRT FACILHW:2737145,898 population served2012
POST FALLS AREA STPHW:2739334,400 population served2012
LEWISTON S_T PLANTHW:2736434,068 population served2012
REXBURG TREATMENT FACILITYHW:2737627,733 population served2012
Moscow Sewage Treatment PlantHW:2737223,800 population served2012
HAYDEN AREA REGIONAL S_T FACILITYHW:2749818,437 population served2012
SHELLEY S_T FACILITYHW:2748018,225 population served2012
KETCHUM STPHW:2746017,083 population served2012
KUNA NORTH WW TREATMENT PLANTHW:2737415,210 population served2012
MOUNTAIN HOME SEWAGE LAGOONHW:2744514,206 population served2012
BLACKFOOT S_T FACILITYHW:2747814,122 population served2012
HAILEY WOODSIDE S_T FACILITYHW:2745812,960 population served2012
MCCALL SEWAGE LAGOONHW:2745312,349 population served2012
JEROME STPHW:2746510,890 population served2012
BURLEY SEWAGE TREATMENT PLANTHW:2746210,345 population served2012
S FRK COEUR D ALENE RVR SD PAGEHW:274078,924 population served2012
CASCADE SEWAGE LAGOONHW:274518,075 population served2012
PAYETTE STPHW:274507,433 population served2012
SANDPOINT S_T PLANTHW:274117,365 population served2012
EMMETT SEWAGE LAGOONHW:274466,557 population served2012
STAR SEWER AND WATER DISTRICTHW:274066,195 population served2012
RUPERT STPHW:274685,554 population served2012
MIDDLETON SEWAGE TREATMENT FCLTYHW:273895,524 population served2012
WEISER STPHW:274555,507 population served2012
PRESTON S_T FACILITYHW:274885,204 population served2012
AMERICAN FALLS S_T FACILHW:274934,457 population served2012
ST ANTHONY SEWAGE LAGOONHW:273784,317 population served2012
DRIGGS S_T FACILITYHW:274944,288 population served2012
BUHL SEWAGE LAGOONHW:274694,122 population served2012
RIGBY STPHW:274903,945 population served2012
STANLEY SEWER ASSOC INCHW:274873,569 population served2012
GOODING STPHW:274633,567 population served2012
OROFINO S_T PLANTHW:274153,476 population served2012
MACKS INN IS PK VILLAGE POTWHW:274023,182 population served2012
ST MARIES S_T LAGOONHW:274093,182 population served2012
KOOTENAI PONDERAY SEWAGE_TRTMT FACHW:273993,176 population served2012
GRANGEVILLE S_T FACILITYHW:274213,141 population served2012
SALMON SEWAGE LAGOONHW:274923,112 population served2012
HEYBURN STPHW:274673,089 population served2012
SODA SPRINGS WW TREAT FACHW:273773,058 population served2012
WENDELL SEWAGE TRT FACHW:275272,782 population served2012
FRUITLANDCITY OF SNAKE RIVERHW:273862,720 population served2012
HOMEDALE STPHW:273882,633 population served2012
MONTPELIER SEW TRT FACHW:273792,597 population served2012
BONNERS FERRY S_T PLANTHW:274132,543 population served2012
FILER STPHW:274702,508 population served2012
BELLEVUE WW TREATMENT FACILITYHW:274562,229 population served2012
MALAD CITY STPHW:274952,095 population served2012
N Lake Rec Sewer and Water DistrictHW:274522,011 population served2012
ABERDEEN S_T FACILITYHW:274771,994 population served2012
PARMA SEWAGE LAGOONHW:274421,983 population served2012
FRUITLAND CITY OF PAYETTE RIVERHW:273871,964 population served2012
SPIRIT LAKE TREATMENT FACILITYHW:275001,945 population served2012
FISH HAVEN AREA REC WW SYSTEMHW:274011,921 population served2012
Riverside Sewage Treatment PlantHW:274001,800 population served2012
PRIEST RIVER STPHW:273941,751 population served2012
WILDER SEWAGE LAGOONHW:274431,613 population served2012
Housing Authority City of CaldwellHW:275371,600 population served2012
NEW PLYMOUTH SEWAGE LAGOONHW:274491,538 population served2012
Idaho City Rapid Infliltration BsnHW:274401,485 population served2012
SHOSHONE LAGOONHW:274661,461 population served2012
GRANITE CREEK REEDER BAY STPHW:275121,397 population served2012
RIGGINS SEWAGE TREATMENT FACILITYHW:274231,319 population served2012
GLENNS FERRY SEWAGE TREATHW:274441,319 population served2012
MARSING SEWAGE LAGOONHW:274481,307 population served2012
LAST CHANCE_PONDS LODGE STPHW:274031,299 population served2012
SOUTHSIDE SEWER SYSTEMHW:274051,253 population served2012
OUTLET BAY S_T PLANTHW:273971,249 population served2012
POTLATCH S_T FACILITYHW:274311,197 population served2012
Coolin S_T SystemHW:274121,185 population served2012
PAUL SEWAGE TRT FACHW:275261,169 population served2012
HANSEN STPHW:274711,144 population served2012
ASHTON SEWAGE TREAT FACHW:273801,127 population served2012
TWIN LAKES VILLAGE S_T FACILITYHW:275081,038 population served2012
ARCO S_T FACILITYHW:27481995 population served2012
GENESEE SEWAGE TRT FACILITYHW:27429955 population served2012
GRACE S_T FACILITYHW:27384915 population served2012
COTTONWOOD STPHW:27419900 population served2012
HAGERMAN LAGOONHW:27464872 population served2012
FIRTH S_T FACILITYHW:27479871 population served2012
KALISPEL BAY STPHW:27375865 population served2012
TROY S_T FACILITYHW:27434862 population served2012
INKOM S_T FACILITYHW:27473854 population served2012
GREENLEAF STPHW:27441846 population served2012
COUNCIL STPHW:27390839 population served2012
KOOSKIA WTPHW:27422828 population served2012
MCCAMMON S_T FACILITYHW:27474809 population served2012
NEW MEADOWS S_T FACILITYHW:27438796 population served2012
BAYVIEW S_T PLANTHW:27398775 population served2012
HAZELTON STPHW:27524753 population served2012
MENAN S_T FACILITYHW:27489741 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.