Non-Compliance
Clean Water Act
MAWC MERAMEC SEWER 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
-
TIBET DRIVE
FENTON, MO 63026
View on map ↗ - County
- SAINT LOUIS County
- Inspections
- 1 · last Nov 18, 2025
- Total Penalties
- $0
- Registry ID
- 110006729424
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.
7
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 | Jun 30, 2023 | Jul 19, 2023 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Jun 30, 2022 | Jun 30, 2022 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Oct 13, 2021 | Oct 22, 2021 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Dec 1, 2020 | Mar 31, 2021 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Dec 1, 2020 | Mar 31, 2021 | Resolved |
| cwa | Effluent Violations - Numeric effluent violation | Sep 30, 2020 | Jan 13, 2021 | Resolved |
| cwa | Schedule Event reported late | Oct 31, 2012 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 31, 2012 | — | 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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.10 mg/L | 3.50 | +446% | Apr 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.10 mg/L | 1.40 | +1,264% | Apr 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 73.00 mg/L | 45.00 | +62% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.80 mg/L | 8.50 | +121% | Mar 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 73.00 mg/L | 30.00 | +143% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.80 mg/L | 2.80 | +571% | Mar 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 43.00 mg/L | 30.00 | +43% | Jan 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 630.00 | +99,999% | Aug 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 638.00 MPN/100mL | 126.00 | +406% | Aug 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 36.80 mg/L | 3.50 | +951% | Apr 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 33.50 mg/L | 1.40 | +2,293% | Apr 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.30 mg/L | 2.80 | +732% | Mar 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.50 mg/L | 8.50 | +176% | Mar 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.50 mg/L | 8.50 | +188% | Feb 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.50 mg/L | 2.80 | +775% | Feb 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.90 mg/L | 8.50 | +87% | Jan 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 39.00 mg/L | 30.00 | +30% | Jan 2023 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 73.00 mg/L | 45.00 | +62% | Jan 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.90 mg/L | 2.80 | +468% | Jan 2023 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 73.00 mg/L | 30.00 | +143% | Jan 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.60 mg/L | 1.40 | +229% | Sep 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.92 mg/L | 3.50 | +155% | Sep 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 31.00 mg/L | 30.00 | +3% | May 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 55.00 mg/L | 45.00 | +22% | May 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.40 mg/L | 1.40 | +857% | Apr 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.40 mg/L | 3.50 | +283% | Apr 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.91 mg/L | 8.50 | +17% | Mar 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.91 mg/L | 2.80 | +254% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.50 mg/L | 8.50 | +141% | Feb 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 20.50 mg/L | 2.80 | +632% | Feb 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.13 mg/L | 2.80 | +583% | Jan 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.30 mg/L | 8.50 | +186% | Jan 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 7.30 mg/L | 2.80 | +161% | Nov 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.40 mg/L | 8.50 | +22% | Nov 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.80 mg/L | 3.50 | +323% | Jun 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.99 mg/L | 1.40 | +256% | Jun 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.60 mg/L | 1.40 | +1,014% | May 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 26.10 mg/L | 3.50 | +646% | May 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.10 mg/L | 3.50 | +331% | Apr 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.96 mg/L | 1.40 | +683% | Apr 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.00 mg/L | 3.50 | +329% | Sep 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.12 mg/L | 1.40 | +266% | Sep 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.76 mg/L | 1.40 | +383% | Jul 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.20 mg/L | 3.50 | +220% | Jul 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.10 mg/L | 3.50 | +246% | Jun 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.78 mg/L | 1.40 | +670% | Jun 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.93 mg/L | 1.40 | +252% | Apr 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 19.60 mg/L | 3.50 | +460% | Apr 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.22 mg/L | 1.40 | +201% | Apr 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.75 mg/L | 3.50 | +93% | Apr 2019 | 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.
Civil Judicial Action
Clean Water Act
· Case MO-N00000120 · Sep 13, 1996
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