Clean Water Act discharge permit · NPDES PA0052451
THE WOOL HOUSE STP, Landenberg, PA: NPDES PA0052451 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
THE WOOL HOUSE STP, held by LANDENBERG VILLAGE LLC, holds NPDES permit PA0052451, which discharges to East Branch White Clay Creek. EPA’s file records it issued November 5, 2021 and expiring November 30, 2026. 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 | THE WOOL HOUSE STP |
|---|---|
| Permittee as filed | LANDENBERG VILLAGE LLC |
| NPDES ID | PA0052451 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 5, 2021 |
| Expiration date | November 30, 2026 |
| Issuing agency | State Environmental Organization |
| Address | Landenberg, PA 19350 |
| Receiving water | East Branch White Clay Creek |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | East Branch White Clay Creek (HUC 020402050303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 10With a violation of any kind
- 3With 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 | 12 | 10 | May 31, 2026 | 99,999% over the limit |
| Solids, total suspended | 2 | 4 | 2 | January 31, 2023 | 47% over the limit |
| Oxygen, dissolved [DO] | 1 | 2 | 1 | October 31, 2019 | 7% over the limit |
| pH | 2 | 2 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 1 | 0 | ||
| Chlorine, total residual | 1 | 1 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 11, 2026 | Permit Violations - Failure to Pay Fees | ST6 |
| June 23, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 8, 2025 | Permit Violations - Failure to Pay Fees | ST6 |
| May 1, 2024 | Permit Violations - Failure to Pay Fees | 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.
Watch this permit
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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 PA0052451 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.