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Clean Water Act discharge permit · NPDES IA0074241

WASHBURN AREA-STP BLACK HAWK COUNTY, Washburn, IA: NPDES IA0074241 discharge permit, effluent exceedances, inspections, penalties

WASHBURN AREA-STP BLACK HAWK COUNTY, held by BLACK HAWK COUNTY BOARD OF SUPERVISORS, holds NPDES permit IA0074241. EPA’s file records it issued November 1, 2018 and expiring October 31, 2023. 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 filedWASHBURN AREA-STP BLACK HAWK COUNTY
Permittee as filedBLACK HAWK COUNTY BOARD OF SUPERVISORS
NPDES IDIA0074241
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
IssuedNovember 1, 2018
Expiration dateOctober 31, 2023
Issuing agencySTA
AddressWashburn, IA 50702
Receiving water impaired303(D) Listed
SubwatershedSink Creek-Cedar River (HUC 070802050906)
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
Flow, in conduit or thru treatment plant066July 31, 2008165% over the limit
Solids, total suspended10611May 31, 201320% over the limit
BOD, carbonaceous [5 day, 20 C]5630
pH5440
Nitrogen, total [as N]5220
BOD, 5-day, 20 deg. C500
Nitrogen, ammonia total [as N]500
E. coli300
Depth of pond or reservoir in feet300

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 IA0074241.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0074241.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IA0074241.

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 IA0074241 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 the NPDES IA0074241 Clean Water Act discharge permit held by the Black Hawk County Board of Supervisors for the Washburn Area-STP facility in Black Hawk County, Iowa, which is administratively continued and classed as a minor discharger. The page lists 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, with the permit issued November 1, 2018 and expiring October 31, 2023.