Non-Compliance
Clean Water Act
LEWISTOWN WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $6,300 in total penalties since records began.
- Address
-
620 METIS AVENUE
LEWISTOWN, MT 59457
View on map ↗ - County
- FERGUS County
- Inspections
- 3 · last May 16, 2024
- Total Penalties
- $6,300 · last Sep 17, 2025
- Registry ID
- 110018927768
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.
6
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 - Improper Operation and Maintenance | May 16, 2024 | Sep 4, 2024 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Feb 13, 2024 | Sep 4, 2024 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Feb 13, 2024 | Sep 4, 2024 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Feb 13, 2024 | Sep 4, 2024 | Resolved |
| cwa | Effluent Violations - Narrative Effluent Violation | Feb 13, 2024 | Sep 4, 2024 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Feb 16, 2022 | May 23, 2022 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Feb 16, 2022 | May 23, 2022 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Nov 14, 2019 | Mar 12, 2020 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jun 20, 2018 | Aug 21, 2018 | Resolved |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jan 26, 2016 | Mar 21, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 1, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2016 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 1, 2016 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event reported late | Jan 1, 2016 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 1, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2015 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event reported late | Jan 1, 2015 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 1, 2015 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2014 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 1, 2014 | — | Open |
| cwa | Schedule Event reported late | Jan 1, 2014 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 1, 2014 | Mar 10, 2016 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Nov 13, 2013 | Jan 15, 2014 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 8, 2013 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jun 3, 2013 | Jul 3, 2013 | Resolved |
| cwa | Schedule Event reported late | Jan 1, 2013 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 1, 2013 | Mar 10, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 1, 2013 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 1, 2013 | Mar 10, 2016 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Dec 15, 2011 | Mar 2, 2012 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Dec 15, 2011 | Mar 2, 2012 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Nov 18, 2005 | — | Open |
| cwa | Effluent Violations - Unapproved Bypass | Jun 7, 2004 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Apr 22, 2004 | — | 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 |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 86.00 mg/L | 45.00 | +91% | Dec 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 566.59 kg/d | 469.89 | +21% | Dec 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 417.68 kg/d | 313.26 | +33% | Apr 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 65.00 % | 85.00 | +133% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 189.00 mg/L | 45.00 | +320% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 46.00 mg/L | 30.00 | +53% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,717.03 kg/d | 469.89 | +265% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 91.00 mg/L | 30.00 | +203% | Sep 2024 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,564.48 kg/d | 313.26 | +399% | Sep 2024 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 363.00 MPN/100mL | 252.00 | +44% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 5,915.17 kg/d | 469.89 | +1,159% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 314.00 mg/L | 45.00 | +598% | Sep 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 40.30 % | 85.00 | +298% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 68.00 mg/L | 30.00 | +127% | Jun 2024 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 26.90 % | 85.00 | +387% | Jun 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 603.37 kg/d | 313.26 | +93% | Jun 2024 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 51.70 % | 85.00 | +222% | May 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 527.09 kg/d | 313.26 | +68% | May 2024 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 2,217.79 kg/d | 469.89 | +372% | May 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 98.00 mg/L | 45.00 | +118% | May 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 72.50 % | 85.00 | +83% | Mar 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 78.80 % | 85.00 | +41% | Feb 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 57.00 mg/L | 45.00 | +27% | Feb 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 455.36 kg/d | 313.26 | +45% | Apr 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 47.00 mg/L | 30.00 | +57% | Apr 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 82.40 % | 85.00 | +17% | Apr 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 848.98 kg/d | 469.89 | +81% | Apr 2023 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 70.60 % | 85.00 | +96% | Apr 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 138.00 mg/L | 45.00 | +207% | Apr 2023 | Open |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 261.58 MPN/100mL | 252.00 | +4% | Apr 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 74.00 mg/L | 45.00 | +64% | Mar 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 680.55 kg/d | 469.89 | +45% | Mar 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 58.00 mg/L | 45.00 | +29% | Feb 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 50.00 mg/L | 45.00 | +11% | Jul 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 506.21 kg/d | 469.89 | +8% | Jul 2015 | Open |
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 CWA Penalty AO
Clean Water Act
· Case MT-FID2946 · Sep 17, 2025
$3,150
State Administrative Order of Consent
Clean Water Act
· Case MT-N00000973 · Apr 28, 2006
State CWA Penalty AO
Clean Water Act
· Case MT-N00000589 · Sep 20, 2004
$11,608
CWA 309A AO For Compliance
Clean Water Act
· Case 08-2003-N002 · Apr 30, 2003
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