Clean Water Act discharge permit · NPDES MN0055808
CHISAGO LAKES JOINT STC, Chisago City, MN: NPDES MN0055808 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 27Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
CHISAGO LAKES JOINT STC, held by Chisago Lakes Joint STC, holds NPDES permit MN0055808, which discharges to Unnamed Cr. EPA’s file records it issued March 1, 2016 and expiring February 28, 2021. 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 | CHISAGO LAKES JOINT STC |
|---|---|
| Permittee as filed | Chisago Lakes Joint STC |
| NPDES ID | MN0055808 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 1, 2016 |
| Expiration date | February 28, 2021 |
| Address | Chisago City, MN 55013 |
| Receiving water | UNNAMED CR |
| Subwatershed | Green Lake (HUC 070300050406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 27Under a numeric limit
- 16With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 9 | 34 | 33 | February 29, 2024 | 1,433% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 15 | 15 | April 30, 2022 | 129% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 14 | 14 | May 31, 2020 | 466% over the limit |
| Phosphorus, total [as P] | 13 | 9 | 6 | March 31, 2008 | 116% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 1 | 6 | 6 | October 31, 2019 | 646% over the limit |
| Chlorine, total residual | 3 | 4 | 4 | November 30, 2012 | 524% over the limit |
| Solids, suspended percent removal | 1 | 4 | 4 | May 31, 2011 | 284% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 1 | 3 | 3 | June 30, 2007 | 359% over the limit |
| pH | 4 | 1 | 1 | November 30, 2025 | |
| Chloride [as Cl] | 1 | 1 | 1 | January 31, 2026 | 3% over the limit |
| Precipitation, total defined period/in | 1 | 3 | 0 | ||
| Mercury, total [as Hg] | 1 | 3 | 0 | ||
| Nitrogen, total [as N] | 2 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 1 | 0 | ||
| Mercury, dissolved [as Hg] | 1 | 1 | 0 | ||
| Specific conductance | 3 | 0 | 0 | ||
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 0 | 0 | ||
| Solids, total dissolved | 3 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Bicarbonate ion- [as HCO3] | 1 | 0 | 0 | ||
| Calcium, total [as Ca] | 1 | 0 | 0 | ||
| Magnesium, total [as Mg] | 1 | 0 | 0 | ||
| Sodium, total [as Na] | 1 | 0 | 0 | ||
| Potassium, total [as K] | 1 | 0 | 0 | ||
| Sulfate, total [as SO4] | 1 | 0 | 0 |
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 MN0055808.
Velarion’s copy of EPA’s ICIS-NPDES files does not 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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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 MN0055808 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.