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Clean Water Act discharge permit · NPDES MNG585107

WOOD LAKE WWTP, Wood Lake, MN: NPDES MNG585107 discharge permit, effluent exceedances, inspections, penalties

WOOD LAKE WWTP, held by Wood Lake city of, holds NPDES permit MNG585107. EPA’s file records it issued January 1, 2022 and expiring November 30, 2023.

WOOD LAKE WWTP, Wood Lake, Minnesota: Coverage under a general permit MNG585107, held by Wood Lake city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued January 1, 2022, term to November 30, 2023, by STA.

  • Solids, total suspended: 5 limits, 5 violations of any kind, 5 effluent exceedances, latest April 30, 2026, largest 15% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 621% over the limit.
  • Flow, in conduit or thru treatment plant: 9 limits, 0 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • pH: 3 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.
  • Oxygen, dissolved [DO]: 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.
  • October 21, 2026: Evaluation (S).

Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 194 were issued before MNG585107.

Coverages issued nearest MNG585107

  • August 1, 2021: EAGLE BEND WWTP, Eagle Bend, MNG585383, held by Eagle Bend city of
  • January 1, 2022: COTTONWOOD WWTP, Cottonwood, MNG585010, held by Cottonwood city of
  • January 1, 2022: GIBBON WWTP, Gibbon, MNG585020, held by Gibbon city of
  • January 1, 2022: JANESVILLE WWTP, Janesville, MNG585025, held by Janesville city of
  • January 1, 2022: WINGER WWTP, Winger, MNG585045, held by Winger city of
  • January 1, 2022: SLAYTON WWTP, Slayton, MNG585191, held by Slayton city of
  • January 1, 2022: GAYLORD WWTP, Gaylord, MNG585204, held by Gaylord city of
  • January 1, 2022: LONGVILLE WWTP, Longville, MNG585208, held by Longville city of
  • January 1, 2022: TAYLORS FALLS WWTP, Taylors Falls, MNG585218, held by Taylors Falls city of
  • January 1, 2022: WARBA WWTP, Warba, MNG585345, held by Warba city of

WOOD LAKE WWTP among its neighbors

EPA’s permit file holds 4 discharge permits in the Middle Judicial Ditch No 10 subwatershed (HUC 070200041002), MNG585107 among them. Its county holds 25, 0 of them major permits; MNG585107 is a minor permit.

Other permits in the Middle Judicial Ditch No 10 subwatershed (HUC 070200041002)

  • ADAM ANDERSON FARM, Wood Lake: MNG441854, minor permit, permit term to January 31, 2026
  • COTTONWOOD WWTP, Cottonwood: MNG585010, minor permit, permit term to November 30, 2023
  • NSP-MINNESOTA VALLEY PLANT, Granite Falls: MN0000906, minor permit, discharging to MINN R, permit term to December 31, 2008

Identity

Facility as filedWOOD LAKE WWTP
Permittee as filedWood Lake city of
NPDES IDMNG585107
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
AddressWood Lake, MN 56297
Receiving water impaired303(D) Listed
SubwatershedMiddle Judicial Ditch No 10 (HUC 070200041002)

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 suspended555April 30, 202615% over the limit
BOD, carbonaceous [5 day, 20 C]544June 30, 2026621% over the limit
Flow, in conduit or thru treatment plant900
Phosphorus, total [as P]400
pH300
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
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 MNG585107.

Inspections

DateWhat EPA recordedAgency
October 21, 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 MNG585107.

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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 Clean Water Act discharge permit NPDES MNG585107 for the WOOD LAKE WWTP in Wood Lake, MN, held by Wood Lake city of and classed as a Minor discharger. The page lists 11 pollutants on file, 11 of them under a numeric limit, and 2 with an effluent exceedance, with the permit shown as administratively continued.