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Clean Water Act discharge permit · NPDES PAC650420

ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT, Hempfield, Township Of, PA: NPDES PAC650420 discharge permit, effluent exceedances, inspections, penalties

ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT, held by Municipal Authority of Westmoreland County, holds NPDES permit PAC650420. EPA’s file records it issued October 25, 2024 and expiring December 7, 2029.

ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT, Hempfield, Township Of, Pennsylvania: Coverage under a general permit PAC650420, held by Municipal Authority of Westmoreland County; Construction stormwater; Effective; issued October 25, 2024, term to December 7, 2029, by Westmoreland Conservation District; Water and Sewer Line and Related Structures Construction.

Pennsylvania holds 4,048 Construction stormwater coverages of this permit type in EPA’s file; 2,259 were issued before PAC650420. Municipal Authority of Westmoreland County holds 3 permits in Pennsylvania.

Other permits held by Municipal Authority of Westmoreland County

Coverages issued nearest PAC650420

ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT among its neighbors

EPA’s permit file holds 14 discharge permits in the Upper Sewickley Creek subwatershed (HUC 050200061102), PAC650420 among them. Its county holds 294, 8 of them major permits; PAC650420 is a minor permit.

Other permits in the Upper Sewickley Creek subwatershed (HUC 050200061102)

What the register holds for ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT: its NPDES ID, its permit type and status, its dates, its address in Hempfield, Township Of, Pennsylvania. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES PAC650420.

Identity

Facility as filedARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT
Permittee as filedMunicipal Authority of Westmoreland County
NPDES IDPAC650420
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 25, 2024
Expiration dateDecember 7, 2029
Issuing agencyWestmoreland Conservation District
AddressHempfield, Township Of, PA 15666
Receiving water impaired303(D) Listed
SubwatershedUpper Sewickley Creek (HUC 050200061102)
NAICS237110 – Water and Sewer Line and Related Structures Construction

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES PAC650420.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES PAC650420.

Inspections

EPA’s inspection file holds no inspection for NPDES PAC650420.

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 PAC650420.

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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, PAC650420.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

ARMBRUST SR 819 SANITARY SEWER EXTENSION PROJECT is one of 14 NPDES permits in the Upper Sewickley Creek subwatershed. Of the 141 storm water construction permits in Westmoreland County, 36.2% have an earlier issue date than this permit. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance.