Clean Water Act discharge permit · NPDES MT0020079
CITY OF CONRAD WWTF, Conrad, MT: NPDES MT0020079 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 18Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
CITY OF CONRAD WWTF, held by CITY OF CONRAD, holds NPDES permit MT0020079, which discharges to Dry Fork Marias River. EPA’s file records it issued December 15, 2011 and expiring January 31, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CITY OF CONRAD WWTF |
|---|---|
| Permittee as filed | CITY OF CONRAD |
| NPDES ID | MT0020079 |
| 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 | December 15, 2011 |
| Expiration date | January 31, 2017 |
| Issuing agency | MONTANA DEQ |
| Address | Conrad, MT 59425 |
| Receiving water | DRY FORK MARIAS RIVER |
| Subwatershed | Dry Fork Marias River-Latz Lake (HUC 100302030705) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 24Pollutants on file
- 18Under 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 0 | 41 | 40 | June 30, 2010 | 300% over the limit |
| Solids, total suspended | 6 | 19 | 19 | June 30, 2010 | 803% over the limit |
| BOD, 5-day, percent removal | 0 | 16 | 16 | June 30, 2011 | 817% over the limit |
| Nitrite + Nitrate total [as N] | 2 | 15 | 14 | March 31, 2025 | 64% over the limit |
| E. coli, MTEC-MF | 4 | 14 | 13 | June 30, 2025 | 2,083% over the limit |
| Phosphorus, total [as P] | 2 | 11 | 5 | June 30, 2025 | 121% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 3 | 3 | October 31, 2019 | 456% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 3 | 3 | June 30, 2025 | 67% over the limit |
| Coliform, fecal general | 0 | 2 | 2 | September 30, 1998 | 99,999% over the limit |
| pH | 2 | 3 | 1 | September 30, 2007 | |
| Nitrogen, total [as N] | 2 | 5 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 2 | 0 | ||
| Solids, total dissolved [TDS] | 0 | 2 | 0 | ||
| Oil and grease, hexane extr method | 1 | 1 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 0 | 1 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Temperature, water deg. centigrade | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| BOD, carbonaceous, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 0 | ||
| Report due [yrmoda] | 1 | 0 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 23, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| January 23, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| January 23, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| February 6, 2020 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| February 6, 2020 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
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.
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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 MT0020079 there.
Nearby on the register
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- Every permit record in Conrad, A to Z
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.