Non-Compliance
Clean Water Act
MILES CITY WWTP
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
-
2100 DALY
MILES CITY, MT 59301
View on map ↗ - County
- CUSTER County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 3 · last Aug 19, 2025
- Total Penalties
- $0 · last Mar 15, 2017
- Registry ID
- 110043213448
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.
5
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 | Schedule Event unachieved and not reported | Feb 28, 2018 | Nov 7, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 16, 2016 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Sep 30, 2014 | Oct 1, 2014 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Apr 29, 2014 | Apr 30, 2014 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 10, 2014 | Jan 23, 2014 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Jan 2, 2014 | Jan 6, 2014 | Resolved |
| cwa | Schedule Event achieved late but reported | Dec 21, 2013 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Dec 16, 2013 | Dec 24, 2013 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Dec 11, 2013 | Dec 16, 2013 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Feb 27, 2013 | Mar 4, 2013 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Nov 29, 2012 | Dec 27, 2012 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Nov 12, 2012 | Nov 15, 2012 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Aug 27, 2012 | Sep 7, 2012 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Aug 19, 2012 | Sep 13, 2012 | Resolved |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Aug 8, 2012 | Sep 13, 2012 | Resolved |
| cwa | Schedule Event achieved late but reported | May 12, 2012 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Apr 1, 2010 | Jun 7, 2011 | Resolved |
| cwa | Reporting Violations - Failure to Notify | Dec 1, 2009 | Jun 7, 2011 | Resolved |
| cwa | Management Practice Violations - Best Management Practice Deficiencies | Apr 14, 2009 | Apr 14, 2009 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Apr 14, 2009 | Apr 14, 2009 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Jan 1, 2007 | Jun 7, 2011 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Jan 1, 2007 | Jun 7, 2011 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jan 1, 2007 | Jun 7, 2011 | Resolved |
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 | 193,143.00 MPN/100mL | 163,800.00 | +18% | Jan 2017 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 451,632.00 MPN/100mL | 163,800.00 | +176% | Apr 2016 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 192,470.00 MPN/100mL | 163,800.00 | +18% | Apr 2015 | Resolved |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State Administrative Order of Consent
Clean Water Act
· Case MT-FID2318 · Sep 22, 2014
$300
State Administrative Order of Consent
Clean Water Act
· Case MT-FID2032 · May 10, 2011
$6,600
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