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Clean Water Act discharge permit · NPDES MNG585135

BIG FALLS WWTP, Big Falls, MN: NPDES MNG585135 discharge permit, effluent exceedances, inspections, penalties

BIG FALLS WWTP, held by Big Falls city of, holds NPDES permit MNG585135. EPA’s file records it issued February 1, 2020 and expiring November 30, 2023.

BIG FALLS WWTP, Big Falls, Minnesota: Coverage under a general permit MNG585135, held by Big Falls city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued February 1, 2020, term to November 30, 2023, by STA.

  • pH: 3 limits, 3 violations of any kind, 1 effluent exceedance, latest May 31, 2022.
  • Solids, total suspended: 5 limits, 4 violations of any kind, 0 effluent exceedances.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 4 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 4 limits, 2 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 9 limits, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
  • Precipitation, total defined period/in: 1 limit, 0 violations of any kind, 0 effluent exceedances.
  • Coliform, fecal MPN + membrane ftl 44.5 C: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 88 were issued before MNG585135.

Coverages issued nearest MNG585135

  • February 1, 2020: SANBORN WWTP, Sanborn, MNG585115, held by Sanborn city of
  • February 1, 2020: WANDA WWTP, Wanda, MNG585126, held by Wanda city of
  • February 1, 2020: WESTBROOK WWTP, Westbrook, MNG585127, held by Westbrook city of
  • February 1, 2020: CAMPBELL WWTP, Campbell, MNG585130, held by Campbell city of
  • February 1, 2020: SABIN WWTP, Sabin, MNG585133, held by Sabin city of
  • February 1, 2020: HALLOCK WWTP, Hallock, MNG585147, held by Hallock city of
  • February 1, 2020: FELTON WWTP, Felton, MNG585149, held by Felton city of
  • February 1, 2020: BADGER WWTP, Badger, MNG585155, held by Badger city of
  • February 1, 2020: GREENBUSH WWTP, Greenbush, MNG585156, held by Greenbush city of
  • February 1, 2020: GARFIELD WWTP, Garfield, MNG585158, held by Garfield city of

BIG FALLS WWTP among its neighbors

EPA’s permit file holds 1 discharge permits in the City of Big Falls-Big Fork River subwatershed (HUC 090300060705), MNG585135 among them. Its county holds 12, 2 of them major permits; MNG585135 is a minor permit.

Identity

Facility as filedBIG FALLS WWTP
Permittee as filedBig Falls city of
NPDES IDMNG585135
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
IssuedFebruary 1, 2020
Expiration dateNovember 30, 2023
Issuing agencySTA
AddressBig Falls, MN 56627
SubwatershedCity of Big Falls-Big Fork River (HUC 090300060705)
SIC4952 – Sewerage Systems

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
pH331May 31, 2022
Solids, total suspended540
BOD, carbonaceous [5 day, 20 C]540
Phosphorus, total [as P]420
Oxygen, dissolved [DO]110
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
Coliform, fecal MPN + membrane ftl 44.5 C100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585135.

Inspections

EPA’s inspection file holds no inspection for NPDES MNG585135.

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 MNG585135.

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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MNG585135 for the BIG FALLS WWTP in Big Falls, MN, held by Big Falls city of, with a status of administratively continued and a minor discharger class. EPA's file lists 11 pollutants on file, 11 under a numeric limit, and 1 pollutant with an effluent exceedance. The page is drawn from the watershed City of Big Falls-Big Fork River (HUC 090300060705).