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Clean Water Act discharge permit · NPDES IA0082007

PROMISE CITY, CITY OF STP, Promise City, IA: NPDES IA0082007 discharge permit, effluent exceedances, inspections, penalties

PROMISE CITY, CITY OF STP, held by CITY OF PROMISE CITY, holds NPDES permit IA0082007. EPA’s file records it issued November 1, 2017 and expiring October 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedPROMISE CITY, CITY OF STP
Permittee as filedCITY OF PROMISE CITY
NPDES IDIA0082007
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, 2017
Expiration dateOctober 31, 2022
Issuing agencySTA
AddressPromise City, IA 52583
SubwatershedWalnut Creek (HUC 102802010402)

Cited to the EPA ICIS-NPDES permit file (ECHO 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
pH2644May 31, 2025
BOD, carbonaceous [5 day, 20 C]5602June 30, 201716% over the limit
Solids, total suspended5591June 30, 20178% over the limit
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 IA0082007.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IA0082007.

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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 IA0082007 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.