Non-Compliance
Clean Air Act
Clean Water Act
MITCHELL COUNTY WW PRETREATMENT PLANT
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $1,600 in total penalties since records began.
- Address
-
2137 350TH ST
OSAGE, IA 50461
View on map ↗ - County
- MITCHELL County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 1 · last Sep 20, 2023
- Total Penalties
- $1,600 · last Aug 24, 2022
- Registry ID
- 110016678479
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
8
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 | Reporting Violations - Improper/ Incorrect Reporting | Mar 16, 2026 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Dec 26, 2024 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Sep 20, 2023 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Jun 21, 2023 | Jul 28, 2023 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Jun 21, 2023 | Jul 28, 2023 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 28, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Sep 22, 2021 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Jun 17, 2021 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Mar 19, 2021 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Mar 19, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 28, 2021 | — | Open |
| cwa | Schedule Event reported late | Jan 28, 2021 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Dec 29, 2020 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Apr 2, 2020 | — | Open |
| cwa | Schedule Event reported late | Jan 28, 2020 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2020 | Mar 12, 2020 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 28, 2020 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 28, 2020 | Mar 12, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jul 1, 2019 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event unachieved but reported | Jul 1, 2019 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 1, 2019 | — | Open |
| cwa | Schedule Event reported late | Jul 1, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 21, 2019 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Mar 21, 2019 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2019 | Apr 2, 2019 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 28, 2019 | Apr 2, 2019 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 28, 2019 | — | Open |
| cwa | Schedule Event reported late | Jan 28, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 1, 2018 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 1, 2018 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jul 1, 2018 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event reported late | Jul 1, 2018 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2018 | Feb 28, 2018 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 1, 2017 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jul 1, 2017 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event reported late | Jul 1, 2017 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 1, 2017 | Aug 6, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2017 | Feb 28, 2017 | Resolved |
| caa | FRV | May 25, 2016 | — | Open |
| cwa | Schedule Event unachieved but reported | Oct 28, 2014 | Feb 4, 2015 | Resolved |
| cwa | Schedule Event unachieved and not reported | Oct 28, 2014 | Feb 4, 2015 | Resolved |
| cwa | Schedule Event reported late | Oct 28, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 28, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 28, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 28, 2014 | Jul 3, 2014 | Resolved |
| cwa | Schedule Event unachieved but reported | Apr 28, 2014 | Jul 3, 2014 | Resolved |
| cwa | Schedule Event reported late | Apr 28, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2014 | Apr 29, 2014 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 28, 2013 | — | Open |
| cwa | Schedule Event reported late | Oct 28, 2013 | — | 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, suspended percent removal | DMR, Limited - Numeric Violation | 52.00 % | 65.00 | +37% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.10 mg/L | 3.90 | +415% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.10 mg/L | 17.00 | +18% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.90 mg/L | 3.50 | +211% | Dec 2025 | Resolved |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | DMR, Limited - Numeric Violation | 1.00 toxic | 0.30 | +233% | Dec 2025 | Open |
| Toxicity [acute], Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 1.00 toxic | 0.30 | +233% | Dec 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 47.00 % | 65.00 | +51% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 69.10 mg/L | 65.00 | +6% | Nov 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 22.00 % | 65.00 | +123% | Nov 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 69.10 mg/L | 45.00 | +54% | Nov 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.72 mg/L | 3.90 | +149% | Nov 2025 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 30.00 % | 65.00 | +100% | Nov 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 27.00 % | 65.00 | +109% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.18 mg/L | 2.00 | +159% | Oct 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | Oct 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 56.00 % | 65.00 | +26% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | Sep 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.30 mg/L | 1.70 | +624% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.92 mg/L | 1.20 | +643% | Aug 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | Aug 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 52.00 % | 65.00 | +37% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.50 mg/L | 1.40 | +793% | Jul 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 123.00 mg/L | 110.00 | +12% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +1,075% | Jul 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 123.00 mg/L | 70.00 | +76% | Jul 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +135% | Jul 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 27.00 % | 65.00 | +109% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | Jun 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | Jun 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | May 2025 | Open |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | May 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 91.00 mg/L | 70.00 | +30% | May 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 57.00 % | 65.00 | +23% | Apr 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,030.00 | +99,999% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 73.00 mg/L | 70.00 | +4% | Apr 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 206.00 | +99,999% | Apr 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 76.00 mg/L | 70.00 | +9% | Mar 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 25.00 % | 65.00 | +114% | Mar 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | Dec 2024 | Open |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | DMR, Limited - Numeric Violation | 1.00 toxic | 0.30 | +233% | Dec 2024 | Open |
| Toxicity [acute], Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 1.00 toxic | 0.30 | +233% | Dec 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 72.00 mg/L | 70.00 | +3% | Dec 2024 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 0.00 % | 65.00 | +186% | Dec 2024 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 47.00 % | 65.00 | +51% | Nov 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 96.00 mg/L | 70.00 | +37% | Nov 2024 | 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 MO-NBF000002508 · Aug 24, 2022
$1,600
Warning Letter
Clean Air Act
· Case 3600739137 · May 25, 2016
State CWA Non Penalty AO
Clean Water Act
· Case MO-N00000375 · Jan 24, 1986
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