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Clean Water Act discharge permit · NPDES MNG585066

LANCASTER WWTP, Lancaster, MN: NPDES MNG585066 discharge permit, effluent exceedances, inspections, penalties

LANCASTER WWTP, held by Lancaster city of, holds NPDES permit MNG585066. EPA’s file records it issued February 1, 2020 and expiring November 30, 2023.

LANCASTER WWTP, Lancaster, Minnesota: Coverage under a general permit MNG585066, held by Lancaster 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.

  • Solids, total suspended: 5 limits, 9 violations of any kind, 6 effluent exceedances, latest June 30, 2026, largest 51,179% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 7 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 39,081% over the limit.
  • pH: 3 limits, 2 violations of any kind, 1 effluent exceedance, latest June 30, 2022.
  • Nitrogen, total [as N]: 2 limits, 3 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 3 limits, 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.
  • 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.

Minnesota holds 240 Publicly owned treatment works coverages of this permit type in EPA’s file; 88 were issued before MNG585066.

Coverages issued nearest MNG585066

  • February 1, 2020: IRON JUNCTION WWTP, Iron, MNG585049, held by Iron Junction city of
  • February 1, 2020: WAHKON WWTP, Wahkon, MNG585051, held by Wahkon city of
  • February 1, 2020: UPSALA WWTP, Upsala, MNG585053, held by Upsala city of
  • February 1, 2020: BEAVER CREEK WWTP, Beaver Creek, MNG585055, held by Beaver Creek city of
  • February 1, 2020: ANCHOR BAY MOBILE HOME PARK, Baudette, MNG585058, held by Sunrise Properties - Baudette
  • February 1, 2020: LITTLEFORK WWTP, Littlefork, MNG585081, held by Littlefork city of
  • February 1, 2020: KILKENNY WWTP, Kilkenny, MNG585084, held by Kilkenny city of
  • February 1, 2020: TAUNTON WWTP, Taunton, MNG585090, held by Taunton city of
  • February 1, 2020: CLEMENTS WWTP, Clements, MNG585094, held by Clements city of
  • February 1, 2020: IVANHOE WWTP, Ivanhoe, MNG585103, held by Ivanhoe city of

LANCASTER WWTP among its neighbors

EPA’s permit file holds 3 discharge permits in the City of Lancaster-North Branch Two Rivers subwatershed (HUC 090203120605), MNG585066 among them. Its county holds 14, 0 of them major permits; MNG585066 is a minor permit.

Other permits in the City of Lancaster-North Branch Two Rivers subwatershed (HUC 090203120605)

  • HIGH PRAIRIE DAIRY LLC, Lancaster: MN0071871, minor permit, permit term to June 13, 2029
  • LANCASTER, Lancaster: MNG580066, minor permit, discharging to N BR TWO RIVERS R VIA COULEE CR, permit term to February 28, 2010

Identity

Facility as filedLANCASTER WWTP
Permittee as filedLancaster city of
NPDES IDMNG585066
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
AddressLancaster, MN 56735
Receiving water impaired303(D) Listed
SubwatershedCity of Lancaster-North Branch Two Rivers (HUC 090203120605)

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 suspended596June 30, 202651,179% over the limit
BOD, carbonaceous [5 day, 20 C]574June 30, 202639,081% over the limit
pH321June 30, 2022
Nitrogen, total [as N]230
Nitrogen, Kjeldahl, total [as N]220
Nitrite + Nitrate total [as N]220
Phosphorus, total [as P]310
Flow, in conduit or thru treatment plant900
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 MNG585066.

Inspections

EPA’s inspection file holds no inspection for NPDES MNG585066.

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 MNG585066.

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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 MNG585066 for the LANCASTER WWTP in Lancaster, MN, held by Lancaster city of, with an administratively continued status and a receiving water listed as impaired under 303(D). The facts list 11 pollutants on file, 7 under a numeric limit, 7 with a violation of any kind, and 3 with an effluent exceedance.