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Clean Water Act discharge permit · NPDES MNG585198

ROUND LAKE WWTP, Round Lake, MN: NPDES MNG585198 discharge permit, effluent exceedances, inspections, penalties

ROUND LAKE WWTP, held by Round Lake city of, holds NPDES permit MNG585198. EPA’s file records it issued December 1, 2020 and expiring November 30, 2023.

ROUND LAKE WWTP, Round Lake, Minnesota: Coverage under a general permit MNG585198, held by Round Lake city of; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued December 1, 2020, term to November 30, 2023, by STA.

  • pH: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2023.
  • Nitrogen, total [as N]: 2 limits, 1 violation 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.
  • Solids, total suspended: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • BOD, carbonaceous [5 day, 20 C]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 3 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.
  • Nitrogen, ammonia total [as N]: 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.
  • Solids, total dissolved: 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; 144 were issued before MNG585198.

Coverages issued nearest MNG585198

  • December 1, 2020: CANBY WWTP, Canby, MNG585154, held by Canby city of
  • December 1, 2020: MARIETTA WWTP, Marietta, MNG585160, held by Marietta city of
  • December 1, 2020: STEPHEN WWTP, Stephen, MNG585162, held by Stephen city of
  • December 1, 2020: NIELSVILLE WWTP, Nielsville, MNG585166, held by Nielsville city of
  • December 1, 2020: BIG STONE CO HUTTERITE COLONY GRACEVILLE, Graceville, MNG585168, held by Big Stone County Hutterite Colony
  • December 1, 2020: SARGEANT WWTP, Sargeant, MNG585214, held by Sargeant city of
  • December 1, 2020: CONGER WWTP, Conger, MNG585222, held by Conger city of
  • December 1, 2020: HOLLANDALE WWTP, Hollandale, MNG585374, held by Hollandale city of
  • December 1, 2020: HENDRICKS WWTP, Hendricks, MNG585377, held by Hendricks city of
  • December 1, 2020: OSLO WWTP, Oslo, MNG585379, held by Oslo city of

ROUND LAKE WWTP among its neighbors

EPA’s permit file holds 2 discharge permits in the Judicial Ditch No 24 subwatershed (HUC 102300030102), MNG585198 among them. Its county holds 15, 0 of them major permits; MNG585198 is a minor permit.

Other permits in the Judicial Ditch No 24 subwatershed (HUC 102300030102)

  • WILSON SITE, Round Lake: MNG440275, minor permit, permit term to January 31, 2026

Identity

Facility as filedROUND LAKE WWTP
Permittee as filedRound Lake city of
NPDES IDMNG585198
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
IssuedDecember 1, 2020
Expiration dateNovember 30, 2023
Issuing agencySTA
AddressRound Lake, MN 56167
SubwatershedJudicial Ditch No 24 (HUC 102300030102)

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
pH311December 31, 2023
Nitrogen, total [as N]210
Nitrogen, Kjeldahl, total [as N]210
Nitrite + Nitrate total [as N]210
Flow, in conduit or thru treatment plant900
Solids, total suspended500
BOD, carbonaceous [5 day, 20 C]500
Phosphorus, total [as P]300
Precipitation, total defined period/in100
Oxygen, dissolved [DO]100
Nitrogen, ammonia total [as N]100
Coliform, fecal MPN + membrane ftl 44.5 C100
Solids, total dissolved100

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585198.

Inspections

EPA’s inspection file holds no inspection for NPDES MNG585198.

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 MNG585198.

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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 the Clean Water Act discharge permit NPDES MNG585198 for the ROUND LAKE WWTP in Round Lake, MN, held by Round Lake city of, with a status of administratively continued and a Minor Discharger class. The facts list 13 pollutants on file, 1 of which is under a numeric limit, 4 with a violation of any kind, and 1 with an effluent exceedance, within HUC 102300030102.