Clean Water Act discharge permit · NPDES MNG585042
TWIN LAKES WWTP, Twin Lakes, MN: NPDES MNG585042 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
TWIN LAKES WWTP, held by Twin Lakes city of, holds NPDES permit MNG585042. EPA’s file records it issued January 1, 2024 and expiring November 30, 2028. 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 filed | TWIN LAKES WWTP |
|---|---|
| Permittee as filed | Twin Lakes city of |
| NPDES ID | MNG585042 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 1, 2024 |
| Expiration date | November 30, 2028 |
| Issuing agency | STA |
| Address | Twin Lakes, MN 56089 |
| Subwatershed | County Ditch No 55 (HUC 070802020106) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 11With a violation of any kind
- 0With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 9 | 12 | 0 | ||
| Solids, total suspended | 5 | 9 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 5 | 9 | 0 | ||
| pH | 3 | 5 | 0 | ||
| Phosphorus, total [as P] | 3 | 5 | 0 | ||
| Nitrogen, total [as N] | 2 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 4 | 0 | ||
| Precipitation, total defined period/in | 1 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 1 | 0 | ||
| Sulfate, total [as SO4] | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MNG585042.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MNG585042.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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- One watershed — $2,990/year
- One state — $4,990/year
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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 MNG585042 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.