Non-Compliance
Clean Water Act
MAINLAND 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
-
57 MAIN ST
HARLEYSVILLE, PA 19438
View on map ↗ - County
- MONTGOMERY County
- Inspections
- 5 · last Dec 5, 2025
- Total Penalties
- $0
- Registry ID
- 110008996239
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.
6
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 | Feb 1, 2024 | Feb 1, 2024 | 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 |
|---|---|---|---|---|---|---|
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,400.00 MPN/100mL | 1,000.00 | +40% | Feb 2025 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 30.87 mg/L | 27.00 | +14% | Apr 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 4.99 kg/d | 3.40 | +47% | Apr 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 128.48 kg/d | 61.29 | +110% | Apr 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 443.56 kg/d | 93.07 | +377% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 445.37 kg/d | 152.09 | +193% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 126.67 kg/d | 102.15 | +24% | Apr 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 112.59 kg/d | 93.07 | +21% | Jan 2024 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 115.90 kg/d | 93.07 | +25% | Dec 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 9.95 mg/L | 9.00 | +11% | Oct 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 62.15 kg/d | 45.40 | +37% | Aug 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 9.53 mg/L | 9.00 | +6% | Aug 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 20.91 mg/L | 13.00 | +61% | Aug 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 14.21 mg/L | 13.00 | +9% | May 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 9.89 mg/L | 9.00 | +10% | May 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 146.97 kg/d | 93.07 | +58% | Jan 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 228.45 kg/d | 152.09 | +50% | Jan 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 98.64 kg/d | 93.07 | +6% | Apr 2022 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 107.68 kg/d | 51.30 | +110% | Sep 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 57.53 kg/d | 51.30 | +12% | Jun 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 18.11 mg/L | 15.00 | +21% | Jun 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.99 kg/d | 3.40 | +17% | May 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.48 mg/L | 1.00 | +48% | May 2021 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 10.77 mg/L | 10.00 | +8% | May 2021 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 1.02 mg/L | 1.00 | +2% | May 2018 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.69 kg/d | 3.40 | +8% | May 2018 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 211.69 kg/d | 102.15 | +107% | Apr 2018 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 322.69 kg/d | 154.36 | +109% | Apr 2018 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,500.00 MPN/100mL | 1,000.00 | +50% | Apr 2018 | Open |
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