Clean Water Act discharge permit · NPDES MT0022608
CITY OF BOZEMAN WWTP, Bozeman, MT: NPDES MT0022608 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 36Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CITY OF BOZEMAN WWTP, held by CITY OF BOZEMAN, holds NPDES permit MT0022608, which discharges to East Gallatin River. EPA’s file records it issued August 31, 2006 and expiring September 30, 2011. 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 | CITY OF BOZEMAN WWTP |
|---|---|
| Permittee as filed | CITY OF BOZEMAN |
| NPDES ID | MT0022608 |
| 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 | August 31, 2006 |
| Expiration date | September 30, 2011 |
| Issuing agency | MONTANA DEQ |
| Address | Bozeman, MT 59718 |
| Receiving water | EAST GALLATIN RIVER |
| Subwatershed | East Gallatin River-Bozeman (HUC 100200081301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 37Pollutants on file
- 36Under a numeric limit
- 26With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 2 | 9 | 9 | January 31, 2016 | 698% over the limit |
| E. coli, MTEC-MF | 4 | 4 | 4 | September 30, 2007 | 3,194% over the limit |
| Solids, total suspended | 6 | 3 | 2 | April 30, 2018 | 47% over the limit |
| pH | 2 | 1 | 1 | May 31, 2023 | |
| Chlorine, total residual | 1 | 1 | 1 | July 31, 2004 | 321% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | April 30, 2018 | 23% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 4 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 1 | 0 | ||
| Arsenic, total recoverable | 1 | 1 | 0 | ||
| Selenium, total recoverable | 1 | 1 | 0 | ||
| Thallium, total recoverable | 1 | 1 | 0 | ||
| Beryllium, total recoverable [as Be] | 1 | 1 | 0 | ||
| Nickel, total recoverable | 1 | 1 | 0 | ||
| Silver total recoverable | 1 | 1 | 0 | ||
| Zinc, total recoverable | 1 | 1 | 0 | ||
| Cadmium, total recoverable | 1 | 1 | 0 | ||
| Lead, total recoverable | 1 | 1 | 0 | ||
| Chromium, total recoverable | 1 | 1 | 0 | ||
| Copper, total recoverable | 1 | 1 | 0 | ||
| Antimony, total recoverable | 1 | 1 | 0 | ||
| Total phenols | 1 | 1 | 0 | ||
| Mercury, total recoverable | 1 | 1 | 0 | ||
| Cyanide, total recoverable | 1 | 1 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 1 | 1 | 0 | ||
| Report due [yrmoda] | 0 | 1 | 0 | ||
| Nitrogen, total [as N] | 12 | 0 | 0 | ||
| Phosphorus, total [as P] | 12 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Temperature, water deg. centigrade | 3 | 0 | 0 | ||
| Oil and grease, hexane extr method | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 0 | 0 | ||
| BOD, carbonaceous, percent removal | 1 | 0 | 0 | ||
| Oil and grease visual | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 7, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 7, 2024 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| February 14, 2018 | Monitoring Violations - Analysis not Conducted | ST6 |
| February 14, 2018 | Reporting Violations - Improper/ Incorrect Reporting | 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.
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 MT0022608 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.