Non-Compliance
Clean Water Act
HOBSON SEWAGE TREATMENT PLANT
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
EAST END OF 1ST ST SOUTH
HOBSON, MT 59452
View on map ↗ - County
- JUDITH BASIN County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 2 · last Oct 15, 2025
- Total Penalties
- $0
- Registry ID
- 110009860463
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
4
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Management Practice Violations - Failure to Maintain Records | Oct 15, 2025 | Dec 12, 2025 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Oct 15, 2025 | Dec 12, 2025 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Oct 15, 2025 | Dec 12, 2025 | Resolved |
| cwa | Reporting Violations - Failure to Submit DMRs | Oct 15, 2025 | Dec 12, 2025 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Apr 14, 2021 | Oct 14, 2021 | Resolved |
| cwa | Reporting Violations - Failure to Submit DMRs | Apr 14, 2021 | Oct 14, 2021 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Mar 19, 2015 | May 5, 2015 | Resolved |
| cwa | Management Practice Violations - Failure to Develop/Enforce Standards | Mar 19, 2015 | May 5, 2015 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Mar 19, 2015 | May 5, 2015 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Mar 19, 2015 | May 5, 2015 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Mar 19, 2015 | May 5, 2015 | Resolved |
| cwa | Monitoring Violations - Analysis not Conducted | Mar 3, 2010 | Aug 13, 2010 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Mar 3, 2010 | Aug 13, 2010 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Mar 3, 2010 | Aug 13, 2010 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Mar 3, 2010 | Aug 13, 2014 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Jan 28, 2005 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 32,000.00 MPN/100mL | 126.00 | +25,297% | Apr 2025 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 32,000.00 MPN/100mL | 252.00 | +12,598% | Apr 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 9.99 kg/d | 6.63 | +51% | May 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 69.00 mg/L | 45.00 | +53% | May 2023 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 40.00 % | 65.00 | +71% | Mar 2022 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Overdue | 56.00 % | 65.00 | +26% | Nov 2021 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 56.00 % | 65.00 | +26% | Nov 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 260.00 MPN/100mL | 252.00 | +3% | Oct 2021 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 56.00 % | 65.00 | +26% | Oct 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 260.00 MPN/100mL | 126.00 | +106% | Oct 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 170.00 MPN/100mL | 126.00 | +35% | May 2021 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 5,800.00 MPN/100mL | 630.00 | +821% | Nov 2020 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 44.00 % | 65.00 | +60% | May 2020 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 36.00 % | 65.00 | +83% | Jun 2019 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Overdue | 62.00 % | 65.00 | +9% | Jun 2019 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 62.00 % | 65.00 | +9% | Jun 2019 | Open |
| Solids, suspended percent removal | DMR, Limited - Overdue | 36.00 % | 65.00 | +83% | Jun 2019 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 62.00 % | 65.00 | +9% | Apr 2019 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 7,700.00 MPN/100mL | 126.00 | +6,011% | Oct 2018 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 7,700.00 MPN/100mL | 252.00 | +2,956% | Oct 2018 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Overdue | 64.00 % | 65.00 | +3% | Apr 2018 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 64.00 % | 65.00 | +3% | Apr 2018 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 33.00 % | 65.00 | +91% | Apr 2018 | Open |
| Solids, suspended percent removal | DMR, Limited - Overdue | 35.00 % | 65.00 | +86% | Mar 2018 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 35.00 % | 65.00 | +86% | Mar 2018 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 47.00 % | 65.00 | +51% | Mar 2017 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 54.00 % | 65.00 | +31% | Oct 2016 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Overdue | 13.17 kg/d | 9.58 | +37% | Apr 2016 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 52.00 % | 65.00 | +37% | Apr 2016 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 61.00 % | 65.00 | +11% | Apr 2016 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Overdue | 10.21 kg/d | 6.63 | +54% | Apr 2016 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 10.21 kg/d | 6.63 | +54% | Apr 2016 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 13.17 kg/d | 9.58 | +37% | Apr 2016 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 35.00 % | 65.00 | +86% | Mar 2016 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 8.17 kg/d | 6.63 | +23% | Feb 2016 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 32.00 % | 65.00 | +94% | Feb 2016 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 32.00 % | 65.00 | +94% | Feb 2016 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 730.00 MPN/100mL | 630.00 | +16% | Nov 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 11.80 kg/d | 6.63 | +78% | Nov 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 23.61 kg/d | 14.75 | +60% | Nov 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 11.80 kg/d | 9.58 | +23% | Mar 2015 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 7.26 kg/d | 6.63 | +10% | Mar 2015 | Open |
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