Non-Compliance
Clean Air Act
Clean Water Act
WINNSBORO WASTEWATER TREATMENT PLANT
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $62,100 in total penalties since records began.
- Address
-
HWY. 321 S
WINNSBORO, SC 29180
View on map ↗ - County
- FAIRFIELD County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 22132
- Inspections
- 8 · last Nov 25, 2025
- Total Penalties
- $62,100 · last Oct 6, 2025
- Registry ID
- 110007220845
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.
3
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
12
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 Maintain Records | Oct 20, 2025 | — | Open |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Oct 20, 2025 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Oct 20, 2025 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Oct 20, 2025 | — | Open |
| caa | FRV | Aug 26, 2025 | — | Open |
| caa | FRV | Feb 25, 2025 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 27, 2024 | — | Open |
| cwa | Management Practice Violations - Failure to Conduct Inspections | Aug 27, 2024 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Aug 27, 2024 | — | Open |
| cwa | Pretreatment - Failure to Develop/Enforce Standards | Aug 26, 2024 | — | Open |
| cwa | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | Aug 26, 2024 | — | Open |
| cwa | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | Jan 24, 2024 | — | Open |
| caa | FRV | Sep 28, 2023 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Sep 29, 2022 | — | Open |
| cwa | Management Practice Violations - Failure to Conduct Inspections | Sep 29, 2022 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Sep 29, 2022 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Sep 29, 2022 | — | Open |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Sep 29, 2022 | — | Open |
| cwa | Management Practice Violations - Laboratory Not Certified | Sep 29, 2022 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jul 5, 2022 | Aug 5, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 4, 2022 | May 5, 2022 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Aug 30, 2021 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 25, 2021 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Aug 25, 2021 | — | Open |
| cwa | Management Practice Violations - Failure to Develop/Enforce Standards | Feb 7, 2020 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Feb 7, 2020 | — | Open |
| cwa | Management Practice Violations - Failure to Maintain Records | Feb 7, 2020 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Feb 7, 2020 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Aug 29, 2019 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Aug 29, 2019 | — | Open |
| caa | FRV | Apr 18, 2019 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jun 25, 2018 | — | Open |
| cwa | Management Practice Violations - Best Management Practice Deficiencies | Jun 25, 2018 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jun 25, 2018 | — | Open |
| cwa | WW SSO - Improper Operation and Maintenance | Feb 1, 2013 | Nov 25, 2013 | 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 | 41.80 mg/L | 30.00 | +39% | Jan 2026 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 20.80 mg/L | 9.50 | +119% | Jan 2026 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 34.60 mg/L | 14.25 | +143% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.70 mg/L | 2.19 | +115% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.00 mg/L | 3.28 | +83% | Jan 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 54.00 mg/L | 45.00 | +20% | Jan 2026 | Open |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 100.00 % | 40.00 | +150% | Dec 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 46.20 mg/L | 45.00 | +3% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 81.30 mg/L | 14.25 | +471% | Dec 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 37.60 mg/L | 30.00 | +25% | Dec 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 30.60 mg/L | 9.50 | +222% | Dec 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 213.38 kg/d | 86.26 | +147% | Dec 2025 | Open |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 100.00 % | 25.00 | +300% | Dec 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 132.00 mg/L | 9.50 | +1,289% | Nov 2025 | Resolved |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 272.40 kg/d | 86.26 | +99,999% | Nov 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 730.00 mg/L | 14.25 | +5,023% | Nov 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 206.57 kg/d | 57.66 | +258% | Nov 2025 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | -83.00 % | 85.00 | +1,120% | Nov 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 206.00 mg/L | 30.00 | +587% | Nov 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 730.00 mg/L | 45.00 | +1,522% | Nov 2025 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | -350.00 % | 85.00 | +2,900% | Nov 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 322.79 kg/d | 181.60 | +78% | Nov 2025 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 272.40 kg/d | 272.40 | +99,999% | Nov 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.00 mg/L | 30.00 | +33% | Oct 2025 | Resolved |
| BOD, 5-day, percent removal | DMR, Limited - Numeric Violation | 79.50 % | 85.00 | +37% | Oct 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 34.40 mg/L | 9.50 | +262% | Oct 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.90 mg/L | 1.50 | +27% | Oct 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 155.00 MPN/100mL | 126.00 | +23% | Oct 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 288.74 kg/d | 86.26 | +235% | Oct 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.90 mg/L | 2.25 | +29% | Oct 2025 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 128.00 mg/L | 14.25 | +798% | Oct 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 349.00 | +593% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 51.00 mg/L | 45.00 | +13% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 31.90 mg/L | 30.00 | +6% | Sep 2025 | Resolved |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 100.00 % | 40.00 | +150% | Sep 2025 | Open |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 100.00 % | 25.00 | +300% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 1.70 mg/L | 1.50 | +13% | Sep 2025 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 1,553.00 MPN/100mL | 349.00 | +345% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.60 mg/L | 2.25 | +16% | Aug 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 35.70 mg/L | 30.00 | +19% | Aug 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.10 mg/L | 1.50 | +40% | Aug 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.98 kg/d | 13.62 | +10% | Aug 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 410.00 MPN/100mL | 349.00 | +17% | Aug 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.50 mg/L | 2.25 | +11% | Jul 2025 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.00 MPN/100mL | 349.00 | +593% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 3.20 mg/L | 2.25 | +42% | May 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 50.00 mg/L | 45.00 | +11% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.30 mg/L | 1.50 | +53% | May 2025 | Resolved |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | 65.40 % | 85.00 | +131% | May 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.70 mg/L | 1.50 | +80% | Apr 2025 | 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.
Administrative - Formal
Clean Air Act
· Case 3604601058 · Oct 6, 2025
$35,500
Notice of Violation
Clean Air Act
· Case 3604387756 · Apr 24, 2025
State Administrative Order of Consent
Clean Water Act
· Case SC-25-010-W · Mar 4, 2025
$4,800
State Administrative Order of Consent
Clean Water Act
· Case SC-55567369369872470 · Mar 4, 2025
$4,800
Notice of Violation
Clean Air Act
· Case 3604284168 · Feb 26, 2025
Administrative - Formal
Clean Air Act
· Case 3604126491 · Sep 25, 2024
$0
State Administrative Order of Consent
Clean Water Act
· Case SC-89032933702467609 · Sep 25, 2024
$14,000
Notice of Violation
Clean Air Act
· Case 3604033234 · Jun 18, 2024
State Administrative Order of Consent
Clean Water Act
· Case SC-2021-036-W · Jul 2, 2021
$3,000
State Administrative Order of Consent
Clean Water Act
· Case SC-2019-074-W · Dec 10, 2019
$3,400
Notice of Violation
Clean Air Act
· Case 3602077485 · Apr 18, 2019
State Administrative Order of Consent
Clean Water Act
· Case SC-2013-041-W · Nov 25, 2013
$23,400
State Administrative Order of Consent
Clean Water Act
· Case SC-N00018329 · Jun 17, 2010
$3,400
State Administrative Order of Consent
Clean Water Act
· Case SC-N00015906 · Sep 19, 2003
$6,000
State Administrative Order of Consent
Clean Water Act
· Case SC-N00015830 · Aug 11, 2003
State Administrative Order of Consent
Clean Water Act
· Case SC-N00015489 · Feb 18, 2003
State Administrative Order of Consent
Clean Water Act
· Case SC-N00015941 · Oct 4, 2001
State Administrative Order of Consent
Clean Water Act
· Case SC-N00014502 · Apr 13, 2001
State Administrative Order of Consent
Clean Water Act
· Case SC-N00012691 · Aug 29, 2000
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