Clean Water Act discharge permit · NPDES PA0050105
LOWER FREDERICK TWP STP, Schwenksville, PA: NPDES PA0050105 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
LOWER FREDERICK TWP STP, held by LOWER FREDERICK TWP MONTGOMERY CNTY, holds NPDES permit PA0050105, which discharges to Perkiomen Creek. EPA’s file records it issued June 9, 2020 and expiring June 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LOWER FREDERICK TWP STP |
|---|---|
| Permittee as filed | LOWER FREDERICK TWP MONTGOMERY CNTY |
| NPDES ID | PA0050105 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 9, 2020 |
| Expiration date | June 30, 2025 |
| Issuing agency | State Environmental Organization |
| Address | Schwenksville, PA 19473 |
| Receiving water | Perkiomen Creek |
| Subwatershed | Upper Perkiomen Creek (HUC 020402030806) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 9 | 5 | December 31, 2021 | 500% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 7 | 3 | April 30, 2026 | 67% over the limit |
| Solids, total suspended | 6 | 13 | 1 | January 31, 2022 | 33% over the limit |
| Oxygen, dissolved [DO] | 1 | 3 | 1 | April 30, 2023 | 22% over the limit |
| Nitrogen, total [as N] | 2 | 14 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 6 | 12 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 12 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Phosphorus, total [as P] | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Ultraviolet light intensity | 1 | 2 | 0 | ||
| Solids, total dissolved | 1 | 2 | 0 | ||
| Chlorine, total residual | 0 | 2 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 9Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 19, 2025 | Monitoring Violations - Analysis not Conducted | ST6 |
| August 19, 2025 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| August 19, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| January 2, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 19, 2022 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| September 19, 2022 | Monitoring Violations - Analysis not Conducted | ST6 |
| August 17, 2020 | Effluent Violations - Unapproved Bypass | ST6 |
| November 5, 2018 | Effluent Violations - Unapproved Bypass | ST6 |
| April 17, 2018 | Effluent Violations - Unapproved Bypass | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID PA0050105 there.
Nearby on the register
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- Discharge permits in Pennsylvania
- Every permit record in Pennsylvania, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.