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Clean Water Act discharge permit · NPDES MNG585225

LAKE LILLIAN WWTP, Lake Lillian, MN: NPDES MNG585225 discharge permit, effluent exceedances, inspections, penalties

LAKE LILLIAN WWTP, held by Lake Lillian city of, holds NPDES permit MNG585225. EPA’s file records it issued February 1, 2020 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 filedLAKE LILLIAN WWTP
Permittee as filedLake Lillian city of
NPDES IDMNG585225
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
AddressLake Lillian, MN 56253
Receiving water impaired303(D) Listed
SubwatershedJudicial Ditch No 1 (HUC 070102050106)

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
pH377November 30, 2025
Phosphorus, total [as P]611June 30, 202455% over the limit
Solids, total suspended511April 30, 20260% over the limit
BOD, carbonaceous [5 day, 20 C]511October 31, 202515% over the limit
Nitrogen, total [as N]220
Nitrogen, Kjeldahl, total [as N]210
Nitrite + Nitrate total [as N]210
Flow, in conduit or thru treatment plant900
Precipitation, total defined period/in100
Oxygen, dissolved [DO]100
Coliform, fecal MPN + membrane ftl 44.5 C100

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 MNG585225.

Inspections

EPA’s inspection file holds no inspection for NPDES MNG585225.

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 MNG585225.

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 MNG585225 there.

LAKE LILLIAN WWTP, Lake Lillian, Minnesota: Coverage under a general permit MNG585225, held by Lake Lillian 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, 7 violations of any kind, 7 effluent exceedances, latest November 30, 2025.
  • Phosphorus, total [as P]: 6 limits, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2024, largest 55% over the limit.
  • Solids, total suspended: 5 limits, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2026, largest 0% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 2025, largest 15% over the limit.
  • Nitrogen, total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • Nitrogen, Kjeldahl, total [as N]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
  • Nitrite + Nitrate total [as N]: 2 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 MNG585225.

Coverages issued nearest MNG585225

  • February 1, 2020: TOWER/BREITUNG WWTP, Soudan, MNG585186, held by Tower city of
  • February 1, 2020: HEARTLAND HUTTERIAN BRETHREN WWTP, Lake Benton, MNG585195, held by Heartland Hutterian Brethren Inc
  • February 1, 2020: RAYMOND WWTP, Raymond, MNG585197, held by Raymond city of
  • February 1, 2020: PILLAGER WWTP, Pillager, MNG585209, held by Pillager city of
  • February 1, 2020: RUSH CITY WWTP, Rush City, MNG585212, held by Rush City city of
  • February 1, 2020: WOLF LAKE WWTP, Wolf Lake, MNG585226, held by Wolf Lake city of
  • February 1, 2020: DUNDEE WWTP, Fulda, MNG585349, held by Dundee city of
  • February 1, 2020: BIGFORK WWTP, Bigfork, MNG585363, held by Bigfork city of
  • February 1, 2020: VIKING WWTP, Viking, MNG585370, held by Viking city of
  • February 1, 2020: BUFFALO LAKE WWTP, Buffalo Lake, MNG585373, held by Buffalo Lake city of

LAKE LILLIAN WWTP among its neighbors

EPA’s permit file holds 1 discharge permits in the Judicial Ditch No 1 subwatershed (HUC 070102050106), MNG585225 among them. Its county holds 25, 1 of them major permits; MNG585225 is a minor permit.

Nearby on the register

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

What this page shows

This public-records page covers the NPDES MNG585225 discharge permit for the LAKE LILLIAN WWTP in Lake Lillian, MN, held by Lake Lillian city of, with a status of administratively continued and a Minor Discharger class. The facts list 11 pollutants on file, 7 under a numeric limit, and 4 with an effluent exceedance.