Clean Water Act discharge permit · NPDES MN0064564
TAMARACK WWTP, Tamarack, MN: NPDES MN0064564 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
TAMARACK WWTP, held by TAMARACK, holds NPDES permit MN0064564, which discharges to Tamarack R Via Wetland. EPA’s file records it issued February 18, 2011 and expiring January 31, 2016. 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 | TAMARACK WWTP |
|---|---|
| Permittee as filed | TAMARACK |
| NPDES ID | MN0064564 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 18, 2011 |
| Expiration date | January 31, 2016 |
| Address | Tamarack, MN 55787 |
| Receiving water | TAMARACK R VIA WETLAND |
| Subwatershed | Mud Lake (HUC 070101030603) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 0Under a numeric limit
- 11With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 0 | 92 | 78 | July 31, 2026 | 365% over the limit |
| pH | 0 | 29 | 29 | February 28, 2026 | |
| Solids, total suspended | 0 | 34 | 20 | March 31, 2026 | 85% over the limit |
| Solids, suspended percent removal | 0 | 20 | 20 | April 30, 2026 | 515% over the limit |
| Coliform, fecal MPN + membrane ftl 44.5 C | 0 | 19 | 19 | July 31, 2026 | 38,164% over the limit |
| BOD, carb-5 day, 20 deg C, percent removal | 0 | 18 | 18 | April 30, 2026 | 467% over the limit |
| Phosphorus, total [as P] | 0 | 16 | 9 | December 31, 2023 | 28% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 16 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 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 MN0064564.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MN0064564.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/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 MN0064564 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.