Non-Compliance
Clean Water Act
MALVERN SCH AT GLEN MILLS STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $40,004 in total penalties since records began.
- Address
-
20 CREEK RD
GLEN MILLS, PA 19342
View on map ↗ - County
- DELAWARE County
- Inspections
- 7 · last Jan 7, 2026
- Total Penalties
- $40,004 · last Apr 21, 2023
- Registry ID
- 110000927524
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.
1
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 | Permit Violations - Discharge Without a Valid Permit | Jan 7, 2026 | — | Open |
| cwa | Permit Violations - Failure to Submit Timely Permit Renewal Application | Jan 7, 2026 | — | Open |
| cwa | Permit Violations - Failure to Pay Fees | Dec 8, 2025 | — | Open |
| cwa | Permit Violations - Discharge Without a Valid Permit | Jan 4, 2023 | May 17, 2023 | Resolved |
| cwa | Permit Violations - Failure to Submit Timely Permit Renewal Application | Dec 7, 2018 | May 17, 2023 | 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 | 15.50 mg/L | 10.00 | +55% | Dec 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 15.50 mg/L | 5.00 | +210% | Dec 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.49 mg/L | 5.00 | +30% | Nov 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.80 mg/L | 10.00 | +8% | Nov 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.84 mg/L | 5.00 | +17% | Jul 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.42 mg/L | 5.00 | +68% | Jun 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.90 mg/L | 5.00 | +18% | May 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.80 mg/L | 5.00 | +156% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.20 mg/L | 10.00 | +32% | Mar 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.36 mg/L | 5.00 | +7% | Feb 2022 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.30 mg/L | 5.00 | +266% | Mar 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 24.20 mg/L | 10.00 | +142% | Mar 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.34 mg/L | 5.00 | +127% | Feb 2021 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.10 mg/L | 10.00 | +121% | Feb 2021 | Resolved |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.40 mg/L | 5.00 | +12% | Jul 2020 | Resolved |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.70 mg/L | 5.00 | +26% | Jun 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.85 mg/L | 5.00 | +257% | Mar 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.50 mg/L | 10.00 | +85% | Mar 2020 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 27.90 mg/L | 25.00 | +12% | Mar 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 9.03 mg/L | 5.00 | +81% | Feb 2020 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 40.70 mg/L | 25.00 | +63% | Feb 2020 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 71.50 mg/L | 50.00 | +43% | Feb 2020 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 60.50 mg/L | 30.00 | +102% | Feb 2020 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 90.00 mg/L | 60.00 | +50% | Feb 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 31.33 mg/L | 5.00 | +527% | Jan 2020 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 39.50 mg/L | 30.00 | +32% | Jan 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 54.60 mg/L | 10.00 | +446% | Jan 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.40 mg/L | 10.00 | +84% | Dec 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.45 mg/L | 5.00 | +169% | Dec 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.10 mg/L | 10.00 | +11% | Mar 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.92 mg/L | 5.00 | +78% | Mar 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 13.30 mg/L | 5.00 | +166% | Feb 2019 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.40 mg/L | 10.00 | +84% | Feb 2019 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 116.00 mg/L | 60.00 | +93% | Oct 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 62.90 mg/L | 30.00 | +110% | Oct 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.40 mg/L | 10.00 | +4% | Jun 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.25 mg/L | 5.00 | +65% | Jun 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 63.00 mg/L | 60.00 | +5% | Apr 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 57.00 mg/L | 30.00 | +90% | Mar 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 69.50 mg/L | 30.00 | +132% | Feb 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.10 mg/L | 5.00 | +2% | Feb 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 88.00 mg/L | 60.00 | +47% | Feb 2018 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 33.10 mg/L | 30.00 | +10% | Jan 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.90 mg/L | 5.00 | +38% | Jan 2018 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.10 mg/L | 5.00 | +122% | Dec 2017 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 14.20 mg/L | 10.00 | +42% | Dec 2017 | 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.
State CWA Penalty AO
Clean Water Act
· Case PA-0056821_04212023 · Apr 21, 2023
$40,004
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