Non-Compliance
Clean Water Act
CHAPEL HILL MHC WWTF
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
-
HWY 21
HILLSBORO, MO 63050
View on map ↗ - County
- JEFFERSON County
- Inspections
- 2 · last Jan 8, 2025
- Total Penalties
- $0
- Registry ID
- 110009875741
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.
10
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 | Effluent Violations - Numeric effluent violation | Jan 15, 2025 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jul 21, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Mar 17, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jun 30, 2020 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Apr 2, 2020 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 28, 2018 | — | Open |
| cwa | Reporting Violations - Failure to Submit DMRs | Sep 28, 2018 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jun 29, 2018 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 1, 2018 | Apr 1, 2018 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2017 | Oct 2, 2017 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | May 11, 2017 | — | Open |
| cwa | Permit Violations - Failure to Submit Timely Permit Renewal Application | May 11, 2017 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 1, 2016 | Apr 1, 2016 | Resolved |
| cwa | Schedule Event reported late | Mar 1, 2015 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 1, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2014 | Oct 2, 2014 | 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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.21 mg/L | 2.90 | +218% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 206.00 | +1,075% | Dec 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 1,030.00 | +135% | Dec 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.18 mg/L | 2.00 | +309% | Jun 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 3.10 | +287% | Mar 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.76 mg/L | 2.90 | +64% | Dec 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.95 mg/L | 1.50 | +30% | Sep 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 3.10 | +287% | Mar 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 2.90 | +314% | Dec 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 36.00 mg/L | 30.00 | +20% | Dec 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 2.00 | +500% | Jun 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 3.10 | +287% | Mar 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 63.00 mg/L | 30.00 | +110% | Dec 2022 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 63.00 mg/L | 45.00 | +40% | Dec 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.40 mg/L | 2.90 | +52% | Dec 2022 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 54.00 mg/L | 45.00 | +20% | Sep 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 54.00 mg/L | 30.00 | +80% | Sep 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.59 mg/L | 1.50 | +6% | Sep 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 1.40 | +757% | Jun 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 3.60 | +233% | Jun 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 7.50 | +60% | Mar 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 2.90 | +314% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.23 mg/L | 7.50 | +10% | Dec 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.23 mg/L | 2.90 | +184% | Dec 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.86 mg/L | 3.60 | +35% | Sep 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.86 mg/L | 1.40 | +247% | Sep 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.36 mg/L | 1.40 | +426% | Jun 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.36 mg/L | 3.60 | +104% | Jun 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.40 mg/L | 2.90 | +362% | Mar 2021 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.00 mg/L | 30.00 | +33% | Mar 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.50 mg/L | 7.50 | +147% | Mar 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.57 mg/L | 2.90 | +23% | Dec 2020 | Open |
| E. coli | DMR, Limited - Numeric Violation | 778.00 MPN/100mL | 206.00 | +278% | Dec 2020 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 1,030.00 | +135% | Sep 2020 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 206.00 | +1,075% | Sep 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.47 mg/L | 1.40 | +5% | Sep 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 3.60 | +233% | Jun 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.00 mg/L | 1.40 | +757% | Jun 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.30 mg/L | 7.50 | +51% | Mar 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.30 mg/L | 2.90 | +290% | Mar 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.25 mg/L | 2.90 | +150% | Dec 2019 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 1,030.00 | +135% | Dec 2019 | Open |
| E. coli | DMR, Limited - Numeric Violation | 623.50 MPN/100mL | 206.00 | +203% | Dec 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.98 mg/L | 1.40 | +113% | Sep 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.47 mg/L | 3.60 | +108% | Jun 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.79 mg/L | 1.40 | +314% | Jun 2019 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 34.50 mg/L | 30.00 | +15% | Jun 2019 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 56.00 mg/L | 45.00 | +24% | Jun 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.60 mg/L | 2.90 | +507% | Mar 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.60 mg/L | 7.50 | +135% | Mar 2019 | Open |
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