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Clean Water Act discharge permit · NPDES MNG585010

COTTONWOOD WWTP, Cottonwood, MN: NPDES MNG585010 discharge permit, effluent exceedances, inspections, penalties

COTTONWOOD WWTP, held by Cottonwood city of, holds NPDES permit MNG585010. EPA’s file records it issued January 1, 2022 and expiring November 30, 2023. 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 filedCOTTONWOOD WWTP
Permittee as filedCottonwood city of
NPDES IDMNG585010
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedJanuary 1, 2022
Expiration dateNovember 30, 2023
Issuing agencySTA
AddressCottonwood, MN 56229
Receiving water impaired303(D) Listed
SubwatershedMiddle Judicial Ditch No 10 (HUC 070200041002)

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
Solids, total suspended588June 30, 202473% over the limit
BOD, carbonaceous [5 day, 20 C]544May 31, 202433% over the limit
pH333May 31, 2024
Phosphorus, total [as P]410
Flow, in conduit or thru treatment plant900
Nitrogen, total [as N]200
Nitrogen, Kjeldahl, total [as N]200
Nitrite + Nitrate total [as N]200
Precipitation, total defined period/in100
Oxygen, dissolved [DO]100
Nitrogen, ammonia total [as N]100
Coliform, fecal MPN + membrane ftl 44.5 C100
Solids, total dissolved100

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 MNG585010.

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 MNG585010 there.

Nearby on the register

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

What this page shows

This page covers NPDES permit MNG585010 for the COTTONWOOD WWTP in Cottonwood, MN, held by Cottonwood city of, which EPA's file records as issued January 1, 2022 and expiring November 30, 2023, now administratively continued. The register lists 13 pollutants on file, 4 under a numeric limit, and 3 with an effluent exceedance.