Clean Water Act discharge permit · NPDES PAPIU0078
IMPERIAL SYSTEMS, Mercer, PA: NPDES PAPIU0078 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
IMPERIAL SYSTEMS, held by Imperial Systems, holds NPDES permit PAPIU0078. EPA’s file records it issued June 19, 2024 and expiring June 19, 2026. 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.
What the register holds for IMPERIAL SYSTEMS: its NPDES ID, its permit type and status, its dates, its address in Mercer, Pennsylvania. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES PAPIU0078.
Identity
| Facility as filed | IMPERIAL SYSTEMS |
|---|---|
| Permittee as filed | Imperial Systems |
| NPDES ID | PAPIU0078 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 19, 2024 |
| Expiration date | June 19, 2026 |
| Issuing agency | Hermitage Muni Auth Stp |
| Address | Mercer, PA 16137 |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES PAPIU0078.
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES PAPIU0078.
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 PAPIU0078 there.
Nearby on the register
- Discharge permits in Mercer
- Every permit record in Mercer, A to Z
- Discharge permits in Pennsylvania
- Every permit record in Pennsylvania, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.