Clean Water Act discharge permit · NPDES MTX000157
BROADWATER ESTATES MAJOR SUBDIVISION, Helena, MT: NPDES MTX000157 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
BROADWATER ESTATES MAJOR SUBDIVISION, held by BROADWATER DEVELOPMENT LLC, holds NPDES permit MTX000157, which discharges to Ten Mile Creek. EPA’s file records it issued May 22, 2006 and expiring June 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 | BROADWATER ESTATES MAJOR SUBDIVISION |
|---|---|
| Permittee as filed | BROADWATER DEVELOPMENT LLC |
| NPDES ID | MTX000157 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 22, 2006 |
| Expiration date | June 30, 2011 |
| Issuing agency | MONTANA DEQ |
| Address | Helena, MT 59601 |
| Receiving water | TEN MILE CREEK |
| Subwatershed | Lower Tenmile Creek (HUC 100301011406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 11Under a numeric limit
- 13With a violation of any kind
- 2With 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, total [as N] | 6 | 50 | 18 | December 31, 2024 | 130% over the limit |
| Arsenic, dissolved [as As] | 2 | 26 | 7 | March 31, 2025 | 1,567% over the limit |
| Nitrite + Nitrate total [as N] | 10 | 44 | 0 | ||
| Water level at sample collection time | 8 | 32 | 0 | ||
| Chloride [as Cl] | 0 | 32 | 0 | ||
| Conductivity | 0 | 24 | 0 | ||
| Phosphorus, total [as P] | 6 | 20 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 16 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 16 | 0 | ||
| Flow rate | 0 | 16 | 0 | ||
| E. coli, MTEC-MF | 0 | 15 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 8 | 0 | ||
| Solids, total suspended | 2 | 8 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| Coliform, fecal general | 2 | 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 |
|---|---|---|
| December 29, 2020 | Management Practice Violations - Failure to Maintain Records | ST6 |
| December 29, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 29, 2020 | Monitoring Violations - Analysis not Conducted | ST6 |
| December 29, 2020 | Effluent Violations - Unapproved Bypass | 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
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, MTX000157.
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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 MTX000157 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.