Clean Water Act discharge permit · NPDES MT0022454
TOWN OF BIG SANDY - WWTF, Big Sandy, MT: NPDES MT0022454 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
TOWN OF BIG SANDY - WWTF, held by TOWN OF BIG SANDY, holds NPDES permit MT0022454, which discharges to Big Sandy Creek. EPA’s file records it issued March 21, 2005 and expiring April 30, 2010. 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 | TOWN OF BIG SANDY - WWTF |
|---|---|
| Permittee as filed | TOWN OF BIG SANDY |
| NPDES ID | MT0022454 |
| 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 | March 21, 2005 |
| Expiration date | April 30, 2010 |
| Issuing agency | MONTANA DEQ |
| Address | Big Sandy, MT 59520 |
| Receiving water | BIG SANDY CREEK |
| Subwatershed | Big Sandy Creek-Rattlesnake Butte (HUC 100500050203) |
| 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
- 17Pollutants on file
- 15Under a numeric limit
- 17With a violation of any kind
- 8With 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 | 5 | 62 | 30 | May 31, 2014 | 309% over the limit |
| Solids, total suspended | 5 | 58 | 27 | May 31, 2014 | 377% over the limit |
| Solids, suspended percent removal | 1 | 12 | 7 | May 31, 2011 | 873% over the limit |
| Coliform, fecal general | 3 | 15 | 5 | June 30, 1998 | 113% over the limit |
| E. coli, MTEC-MF | 0 | 5 | 5 | April 30, 2014 | 5,051% over the limit |
| BOD, 5-day, percent removal | 1 | 8 | 3 | April 30, 2014 | 60% over the limit |
| Chlorine, total residual | 2 | 19 | 1 | June 30, 2004 | 700% over the limit |
| pH | 2 | 9 | 1 | May 31, 2005 | |
| Phosphorus, total [as P] | 2 | 21 | 0 | ||
| Nitrogen, total [as N] | 2 | 18 | 0 | ||
| Flow rate | 2 | 15 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 14 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 13 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 10 | 0 | ||
| Duration of discharge | 1 | 5 | 0 | ||
| Oil and grease, hexane extr method | 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 MT0022454.
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 MT0022454 there.
Nearby on the register
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- Every permit record in Big Sandy, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.