Clean Water Act discharge permit · NPDES PA0221317
AC VALLEY BUSINESS PARK STP, Emlenton, PA: NPDES PA0221317 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
AC VALLEY BUSINESS PARK STP, held by ALLEGHENY CLARION VALLEY DEV CORP, holds NPDES permit PA0221317, which discharges to Unt To Little Scrubgrass Creek. EPA’s file records it issued June 18, 2025 and expiring June 30, 2030. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | AC VALLEY BUSINESS PARK STP |
|---|---|
| Permittee as filed | ALLEGHENY CLARION VALLEY DEV CORP |
| NPDES ID | PA0221317 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 18, 2025 |
| Expiration date | June 30, 2030 |
| Issuing agency | State Environmental Organization |
| Address | Emlenton, PA 16373 |
| Receiving water | UNT To Little Scrubgrass Creek |
| Subwatershed | Little Scrubgrass Creek (HUC 050100030908) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 11Under a numeric limit
- 14With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 2 | 36 | 34 | January 31, 2026 | 860% over the limit |
| Oxygen, dissolved [DO] | 1 | 12 | 10 | September 30, 2024 | 31% over the limit |
| Coliform, fecal general | 4 | 13 | 9 | May 31, 2025 | 99,999% over the limit |
| Solids, total suspended | 1 | 13 | 7 | August 31, 2025 | 133% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 1 | 7 | 5 | February 28, 2026 | 80% over the limit |
| Chlorine, total residual | 2 | 9 | 1 | September 30, 2018 | 27% over the limit |
| pH | 2 | 8 | 0 | ||
| Nitrogen, total [as N] | 1 | 7 | 0 | ||
| Phosphorus, total [as P] | 1 | 7 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Iron, total [as Fe] | 0 | 4 | 0 | ||
| Manganese, total [as Mn] | 0 | 4 | 0 | ||
| Aluminum, total [as Al] | 0 | 4 | 0 | ||
| Solids, total dissolved | 0 | 2 | 0 | ||
| E. coli | 1 | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 5, 2017 | Effluent Violations - Numeric effluent violation | 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 PA0221317 there.
Nearby on the register
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- Every permit record in Pennsylvania, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.