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Clean Water Act discharge permit · NPDES ID0020133

EASTERN IDAHO REGIONAL SEWER DISTRICT - OXBOW WWTP, Shelley, ID: NPDES ID0020133 discharge permit, effluent exceedances, inspections, penalties

EASTERN IDAHO REGIONAL SEWER DISTRICT - OXBOW WWTP, held by EASTERN IDAHO REGIONAL WASTEWATER AUTHORITY, holds NPDES permit ID0020133, which discharges to Snake River. EPA’s file records it issued June 8, 2004 and expiring July 31, 2009. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedEASTERN IDAHO REGIONAL SEWER DISTRICT - OXBOW WWTP
Permittee as filedEASTERN IDAHO REGIONAL WASTEWATER AUTHORITY
NPDES IDID0020133
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJune 8, 2004
Expiration dateJuly 31, 2009
Issuing agencyEPA, REGION 10
AddressShelley, ID 83274
Receiving waterSNAKE RIVER
SubwatershedBirch Creek (HUC 170402010503)
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, 5-day, 20 deg. C5623204July 31, 2010523% over the limit
Solids, total suspended5351103November 30, 2009317% over the limit
BOD, 5-day, percent removal113766November 30, 2009451% over the limit
Solids, suspended percent removal17238February 28, 2010469% over the limit
E. coli210733February 28, 20101,820% over the limit
pH218028October 31, 2009
Coliform, fecal MF, MFC broth, 44.5 C0937February 29, 200499,899% over the limit
Phosphorus, total [as P]1121November 30, 2016101% over the limit
Flow, in conduit or thru treatment plant21190
Oxygen, dissolved [DO]180
Nitrogen, ammonia total [as N]180
Nitrogen, Kjeldahl, total [as N]030
Nitrite + Nitrate total [as N]030
Oil and grease030
Chlorine, total residual030
Solids, total dissolved030
Floating solids, waste or visible foam-visual010

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ID0020133.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ID0020133 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers Clean Water Act NPDES discharge permit ID0020133 for the Eastern Idaho Regional Sewer District Oxbow WWTP in Shelley, ID, which discharges to the Snake River and sits in the Birch Creek subwatershed (HUC 170402010503). The page lists a Minor discharger class with 10 pollutants under a numeric limit and 8 pollutants with an effluent exceedance, and it shows the permit as administratively continued, with an issue date of June 8, 2004 and an expiration date of July 31, 2009.