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Clean Water Act discharge permit · NPDES PAC670791

MILLBOURNE ESTATE, York, Township Of, PA: NPDES PAC670791 discharge permit, effluent exceedances, inspections, penalties

MILLBOURNE ESTATE, held by Powder Mill Foundation, holds NPDES permit PAC670791. EPA’s file records it issued December 12, 2025 and expiring December 7, 2029.

MILLBOURNE ESTATE, York, Township Of, Pennsylvania: Coverage under a general permit PAC670791, held by Powder Mill Foundation; Construction stormwater; Effective; issued December 12, 2025, term to December 7, 2029, by York County PA Conservation District.

Pennsylvania holds 4,048 Construction stormwater coverages of this permit type in EPA’s file; 3,427 were issued before PAC670791.

Coverages issued nearest PAC670791

MILLBOURNE ESTATE among its neighbors

EPA’s permit file holds 63 discharge permits in the Willis Run-Codorus Creek subwatershed (HUC 020503060705), PAC670791 among them. Its county holds 521, 4 of them major permits; PAC670791 is a minor permit.

Other permits in the Willis Run-Codorus Creek subwatershed (HUC 020503060705)

What the register holds for MILLBOURNE ESTATE: its NPDES ID, its permit type and status, its dates, its address in York, Township Of, Pennsylvania. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES PAC670791.

Identity

Facility as filedMILLBOURNE ESTATE
Permittee as filedPowder Mill Foundation
NPDES IDPAC670791
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedDecember 12, 2025
Expiration dateDecember 7, 2029
Issuing agencyYork County PA Conservation District
AddressYork, Township Of, PA 17403
Receiving water impaired303(D) Listed
SubwatershedWillis Run-Codorus Creek (HUC 020503060705)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES PAC670791.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES PAC670791.

Inspections

EPA’s inspection file holds no inspection for NPDES PAC670791.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES PAC670791.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, PAC670791.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The Millbourne Estate storm water construction permit, held by Powder Mill Foundation in York Township, York County, is one of 362 such permits on EPA's NPDES register for York County, and about 0.3% of those permits carry a violation on file. Among the 362 York County storm water construction permits, 88.7% were issued earlier than this one, which was issued December 12, 2025. The permit is also one of 63 NPDES permits in the Willis Run-Codorus Creek subwatershed, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance.