Non-Compliance
Clean Water Act
WINDYKNOLL STP
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
-
TOMS RUN RD
PITTSBURGH, PA 15237
View on map ↗ - County
- ALLEGHENY County
- Inspections
- 5 · last Jul 24, 2025
- Total Penalties
- $0
- Registry ID
- 110010264917
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.
4
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 | Sep 27, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jun 29, 2022 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Apr 28, 2021 | — | 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 |
|---|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 13.08 kg/d | 5.67 | +130% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 12.89 kg/d | 5.67 | +127% | Apr 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.00 kg/d | 1.73 | +16% | Apr 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 22.00 mg/L | 15.00 | +47% | Aug 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 19.00 mg/L | 15.00 | +27% | Apr 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.00 mg/L | 15.00 | +7% | Apr 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 11.00 mg/L | 10.00 | +10% | Apr 2022 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +142% | Sep 2021 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +142% | Jun 2021 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 1,000.00 | +142% | May 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 16.40 mg/L | 15.00 | +9% | Dec 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.90 mg/L | 3.00 | +97% | Oct 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 17.00 mg/L | 15.00 | +13% | Dec 2016 | Open |
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