Non-Compliance
Clean Water Act
WHITEMARSH TOWNSHIP 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
-
2015 JOSHUA ROAD
LAFAYETTE HILL, PA 19444
View on map ↗ - County
- MONTGOMERY County
- Inspections
- 5 · last Nov 3, 2025
- Total Penalties
- $0 · last Jul 9, 2014
- Registry ID
- 110039768132
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.
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 | Monitoring Violations - Improper Analysis or Lab Error | Jan 10, 2025 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Oct 25, 2024 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Oct 25, 2024 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Aug 16, 2024 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Nov 9, 2023 | Nov 17, 2023 | Resolved |
| cwa | Permit Violations - Discharge Without a Valid Permit | Nov 9, 2023 | Nov 17, 2023 | Resolved |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Aug 7, 2023 | Aug 7, 2023 | Resolved |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jul 28, 2023 | Jul 28, 2023 | Resolved |
| cwa | Monitoring Violations - Improper Analysis or Lab Error | Jul 28, 2023 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jan 5, 2022 | Jan 5, 2022 | Resolved |
| cwa | WW SSO - Discharge to Waters | Apr 14, 2021 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Apr 14, 2021 | Apr 14, 2021 | Resolved |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jan 11, 2021 | Jan 14, 2026 | Resolved |
| cwa | WW SSO - Discharge to Waters | Jan 11, 2021 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jan 8, 2021 | Jan 14, 2026 | Resolved |
| cwa | WW SSO - Discharge to Waters | Jan 8, 2021 | — | Open |
| cwa | WW SSO - Discharge to Waters | Jul 20, 2020 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jul 20, 2020 | Jan 14, 2026 | Resolved |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jul 15, 2020 | Jan 14, 2026 | Resolved |
| cwa | WW SSO - Discharge to Waters | Jul 15, 2020 | — | Open |
| cwa | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | Jun 30, 2020 | Jun 30, 2020 | Resolved |
| cwa | WW SSO - Discharge to Waters | Jun 30, 2020 | — | Open |
| cwa | WW SSO - Discharge to Waters | Apr 23, 2020 | Apr 23, 2020 | Resolved |
| cwa | Permit Violations - CWA §308 Failure to submit required permit application information | Jul 30, 2000 | — | 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 | 41.00 mg/L | 40.00 | +3% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.00 mg/L | 20.00 | +35% | Jan 2026 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 29.00 mg/L | 25.00 | +16% | Jan 2026 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 25.00 mg/L | 20.00 | +25% | Dec 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 9,800.00 MPN/100mL | 1,000.00 | +880% | Oct 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 9,800.00 MPN/100mL | 1,000.00 | +880% | Sep 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Mar 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.00 mg/L | 20.00 | +20% | Jan 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,000.00 MPN/100mL | 1,000.00 | +200% | Jul 2024 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,900.00 MPN/100mL | 1,000.00 | +290% | Jun 2023 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 20,000.00 MPN/100mL | 1,000.00 | +1,900% | May 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 20.00 | +10% | Nov 2022 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 20,000.00 MPN/100mL | 1,000.00 | +1,900% | Jul 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Dec 2021 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.50 mg/L | 5.00 | +10% | Jul 2021 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 20,000.00 MPN/100mL | 1,000.00 | +1,900% | May 2021 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,400.00 MPN/100mL | 1,000.00 | +240% | Sep 2020 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 3,200.00 MPN/100mL | 1,000.00 | +220% | Aug 2020 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,900.00 MPN/100mL | 1,000.00 | +190% | Jun 2020 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.70 mg/L | 5.00 | +6% | Aug 2019 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 20,000.00 MPN/100mL | 1,000.00 | +99,999% | Jun 2019 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 2,500.00 MPN/100mL | 1,000.00 | +150% | May 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Oct 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 49.00 mg/L | 45.00 | +9% | Aug 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Mar 2017 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 31.00 mg/L | 30.00 | +3% | Feb 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 28.00 mg/L | 20.00 | +40% | Feb 2017 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 41.00 mg/L | 40.00 | +3% | Jan 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 58.00 mg/L | 45.00 | +29% | Jan 2017 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 29.00 mg/L | 25.00 | +16% | Jan 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 25.00 mg/L | 20.00 | +25% | Jan 2017 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 38.00 mg/L | 30.00 | +27% | Jan 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 20.00 | +10% | Dec 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 20.00 | +15% | Nov 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.00 mg/L | 20.00 | +20% | Sep 2016 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 100.00 mg/L | 40.00 | +150% | Sep 2016 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 399.52 kg/d | 302.82 | +32% | Sep 2016 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 34.00 mg/L | 25.00 | +36% | Sep 2016 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Aug 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Jul 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Apr 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 20.00 | +10% | Mar 2016 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 20.00 | +15% | Jan 2016 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 20.00 | +15% | Dec 2015 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 23.00 mg/L | 20.00 | +15% | Apr 2015 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.00 mg/L | 20.00 | +5% | Mar 2015 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.00 mg/L | 20.00 | +10% | Feb 2015 | 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.
State CWA Penalty AO
Clean Water Act
· Case PA-0026298_07092014 · Jul 9, 2014
$11,800
State CWA Penalty AO
Clean Water Act
· Case PA-0026298_0801201 · Aug 1, 2011
$3,402
State CWA Penalty AO
Clean Water Act
· Case PA-0026298_08012011 · Aug 1, 2011
$3,402
State CWA Penalty AO
Clean Water Act
· Case PA-0026298_02252011 · Feb 25, 2011
$6,527
State CWA Penalty AO
Clean Water Act
· Case PA-0026298_01282008 · Jan 28, 2008
$3,200
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