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Clean Water Act discharge permit · NPDES MNG585060

FAIRFAX WWTP, Fairfax, MN: NPDES MNG585060 discharge permit, effluent exceedances, inspections, penalties

FAIRFAX WWTP, held by Fairfax city of, holds NPDES permit MNG585060. EPA’s file records it issued August 1, 2021 and expiring November 30, 2023.

FAIRFAX WWTP, Fairfax, Minnesota: Coverage under a general permit MNG585060, held by Fairfax city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued August 1, 2021, term to November 30, 2023, by STA.

  • Solids, total suspended: 6 limits, 13 violations of any kind, 3 effluent exceedances, latest June 30, 2025, largest 13% over the limit.
  • Coliform, fecal MPN + membrane ftl 44.5 C: 1 limit, 3 violations of any kind, 2 effluent exceedances, latest June 30, 2024, largest 502% over the limit.
  • pH: 3 limits, 9 violations of any kind, 1 effluent exceedance, latest April 30, 2025.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 9 violations of any kind, 0 effluent exceedances.
  • Nitrogen, total [as N]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 2 limits, 9 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
  • Flow, in conduit or thru treatment plant: 9 limits, 6 violations of any kind, 0 effluent exceedances.
  • Precipitation, total defined period/in: 1 limit, 2 violations of any kind, 0 effluent exceedances.
  • Solids, total dissolved: 1 limit, 2 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Nitrogen, ammonia total [as N]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Mercury, dissolved [as Hg]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Mercury, total [as Hg]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
  • Sulfate, total [as SO4]: 0 limits, 1 violation of any kind, 0 effluent exceedances.
  • July 16, 2026: Evaluation (S).

Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 178 were issued before MNG585060.

Coverages issued nearest MNG585060

  • March 1, 2021: DEER CREEK WWTP, Deer Creek, MNG585180, held by Deer Creek city of
  • August 1, 2021: CLARISSA WWTP, Clarissa, MNG585008, held by Clarissa city of
  • August 1, 2021: CLEVELAND WWTP, Cleveland, MNG585009, held by Cleveland city of
  • August 1, 2021: NICOLLET WWTP, Nicollet, MNG585037, held by Nicollet city of
  • August 1, 2021: WHEATON WWTP, Wheaton, MNG585044, held by Wheaton city of
  • August 1, 2021: CLARKS GROVE WWTP, Clarks Grove, MNG585067, held by Clarks Grove city of
  • August 1, 2021: ISD 2853 LAC QUI PARLE VALLEY HIGH SCHOOL, Madison, MNG585091, held by Lac qui Parle Valley
  • August 1, 2021: ODESSA WWTP, Odessa, MNG585099, held by Odessa city of
  • August 1, 2021: JEFFERS WWTP, Jeffers, MNG585111, held by Jeffers city of
  • August 1, 2021: MILAN WWTP, Milan, MNG585141, held by Milan city of

FAIRFAX WWTP among its neighbors

EPA’s permit file holds 1 discharge permits in the Fort Ridgely Creek subwatershed (HUC 070200070303), MNG585060 among them. Its county holds 23, 1 of them major permits; MNG585060 is a minor permit.

Identity

Facility as filedFAIRFAX WWTP
Permittee as filedFairfax city of
NPDES IDMNG585060
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
IssuedAugust 1, 2021
Expiration dateNovember 30, 2023
Issuing agencySTA
AddressFairfax, MN 55332
SubwatershedFort Ridgely Creek (HUC 070200070303)

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 suspended6133June 30, 202513% over the limit
Coliform, fecal MPN + membrane ftl 44.5 C132June 30, 2024502% over the limit
pH391April 30, 2025
BOD, carbonaceous [5 day, 20 C]590
Nitrogen, total [as N]290
Nitrogen, Kjeldahl, total [as N]290
Nitrite + Nitrate total [as N]290
Phosphorus, total [as P]480
Flow, in conduit or thru treatment plant960
Precipitation, total defined period/in120
Solids, total dissolved120
Oxygen, dissolved [DO]110
Nitrogen, ammonia total [as N]110
Mercury, dissolved [as Hg]110
Mercury, total [as Hg]110
Sulfate, total [as SO4]010

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585060.

Inspections

DateWhat EPA recordedAgency
July 16, 2026EvaluationS

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 MNG585060.

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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MNG585060 for the FAIRFAX WWTP in Fairfax, MN, held by Fairfax city of, an administratively continued Minor Discharger permit issued August 1, 2021 and expiring November 30, 2023, with the file status as of September 15, 2026. The page lists 16 pollutants on file, 15 under a numeric limit, 16 with a violation of any kind, and 3 with an effluent exceedance. The facility sits in the Fort Ridgely Creek subwatershed (HUC 070200070303).