Non-Compliance
Clean Water Act
CITY OF SHELBY WASTEWATER LAGOONS
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
-
112 1ST SOUTH
SHELBY, MT 59474
View on map ↗ - County
- TOOLE County
- Inspections
- 1 · last Feb 11, 2026
- Total Penalties
- $0
- Registry ID
- 110010825857
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.
11
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 Conduct Inspections | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Monitoring Violations - Analysis not Conducted | Feb 11, 2026 | Apr 3, 2026 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Monitoring Violations - Frequency of Sampling Violation | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Monitoring Violations - Analysis not Conducted | Jan 27, 2021 | Jul 2, 2021 | Resolved |
| cwa | Schedule Event unachieved and not reported | May 30, 2011 | Jun 30, 2011 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Aug 30, 2010 | Jul 2, 2021 | Resolved |
| cwa | Reporting Violations - Failure to Submit DMRs | Aug 30, 2010 | Jul 2, 2021 | 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 |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 125.76 kg/d | 85.81 | +47% | Sep 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 46.50 mg/L | 45.00 | +3% | Sep 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 75.00 mg/L | 65.00 | +15% | Sep 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 89.89 kg/d | 59.47 | +51% | Sep 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 44.00 mg/L | 30.00 | +47% | Jan 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 81.00 mg/L | 45.00 | +80% | Jan 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 82.00 % | 85.00 | +20% | Jan 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 90.80 kg/d | 39.50 | +130% | Jan 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 164.80 kg/d | 59.47 | +177% | Jan 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 64.42 kg/d | 59.47 | +8% | Dec 2024 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 73.30 % | 85.00 | +78% | Mar 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 48.58 kg/d | 39.50 | +23% | Mar 2024 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 68.55 kg/d | 59.47 | +15% | Mar 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 236.35 kg/d | 85.81 | +175% | Jun 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 69.00 mg/L | 45.00 | +53% | Jun 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 155.04 kg/d | 59.47 | +161% | Jun 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 44.00 % | 85.00 | +273% | Jun 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 102.00 mg/L | 65.00 | +57% | Jun 2023 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 58.00 % | 65.00 | +20% | Jun 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 58.42 kg/d | 39.50 | +48% | Feb 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 60.00 mg/L | 45.00 | +33% | Feb 2023 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 47.00 % | 85.00 | +253% | Feb 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 78.27 kg/d | 59.47 | +32% | Feb 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 48.00 mg/L | 30.00 | +60% | Feb 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 149.09 kg/d | 59.47 | +151% | Jul 2022 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 202.89 kg/d | 85.81 | +136% | Jul 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 132.00 mg/L | 65.00 | +103% | Jul 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 97.00 mg/L | 45.00 | +116% | Jul 2022 | Resolved |
| E. coli, MTEC-MF | DMR, Limited - Numeric Violation | 340.00 MPN/100mL | 252.00 | +35% | Jul 2022 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 42.40 kg/d | 39.50 | +7% | Jul 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 121.15 kg/d | 59.47 | +104% | Jun 2022 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 58.00 mg/L | 45.00 | +29% | Jun 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 85.00 mg/L | 65.00 | +31% | Jun 2022 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 102.47 kg/d | 59.47 | +72% | Jun 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 181.29 kg/d | 85.81 | +111% | Jun 2022 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 43.52 kg/d | 39.50 | +10% | Jun 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 62.50 mg/L | 45.00 | +39% | Jun 2022 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 185.11 kg/d | 85.81 | +116% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 97.00 mg/L | 65.00 | +49% | Nov 2021 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 74.00 % | 85.00 | +73% | Nov 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 49.00 mg/L | 30.00 | +63% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 64.50 mg/L | 45.00 | +43% | Nov 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 90.17 kg/d | 39.50 | +128% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 114.19 kg/d | 59.47 | +92% | Nov 2021 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 61.00 % | 65.00 | +11% | Nov 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 86.00 mg/L | 45.00 | +91% | Nov 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 164.12 kg/d | 59.47 | +176% | Nov 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 78.50 mg/L | 45.00 | +74% | May 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 92.87 mg/L | 65.00 | +43% | May 2021 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 52.00 % | 65.00 | +37% | May 2021 | Open |
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