Clean Water Act discharge permit · NPDES PAC361055

WESTMOUNT DEVELOPMENT, Mount Joy, Township Of, PA: NPDES PAC361055 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

WESTMOUNT DEVELOPMENT, held by Vistablock, LLC, holds NPDES permit PAC361055. EPA’s file records it issued March 30, 2026 and expiring December 7, 2029.

WESTMOUNT DEVELOPMENT, Mount Joy, Township Of, Pennsylvania: Coverage under a general permit PAC361055, held by Vistablock, LLC; Construction stormwater; Effective; issued March 30, 2026, term to December 7, 2029, by Lancaster County Conservation District.

Pennsylvania holds 4,048 Construction stormwater coverages of this permit type in EPA’s file; 3,669 were issued before PAC361055. Vistablock, LLC holds 2 permits in Pennsylvania.

Other permits held by Vistablock, LLC

VISTABLOCK - GARDEN SPOT INDUSTRIES, East Earl, Township Of: PAC361060, issued November 21, 2025

Coverages issued nearest PAC361055

March 27, 2026: EBERSOLE AUTO REPAIR, Lebanon, PAC380380, held by Randy Ebersole
March 27, 2026: BPP PA HEIDELBERG PV II LLC, Schaefferstown, PAC380384, held by BPP PA Heidelberg PV II LLC
March 27, 2026: VICTAULIC FOUNDRY EXPANSION, Lawrence, Township Of, PAC590068, held by Victaulic Company
March 30, 2026: ROBBY SEBRIGHT LAND DEVELOPMENT PLAN, Reading, Township Of, PAC010313, held by Robby Sebright
March 30, 2026: LANG ROAD PIPELINE PROJECT, Sewickley Heights, Borough Of, PAC021270, held by Columbia Gas of PA
March 30, 2026: KREIDER - MT. JOY POULTRY REMODEL, Rapho, Township Of, PAC361123, held by Noah W. Kreider & Sons, LLP
March 31, 2026: WAWA AT AARON DRIVE, State College, PAC140202, held by Atherton Goose, LLC
March 31, 2026: SPRING CREEK PUMP STATION AND INTERCEPTOR, Harrisburg, City Of, PAC220521, held by Capital Region Water
March 31, 2026: KEEWAYDIN OSM 17(6425)101.1, Karthaus, PAC680071, held by PA DEP BAMR
April 1, 2026: BUCKS TAVERN SITE RESTORATION, West Hanover, Township Of, PAC220523, held by West Hanover Township

WESTMOUNT DEVELOPMENT among its neighbors

EPA’s permit file holds 31 discharge permits in the Donegal Creek subwatershed (HUC 020503060803), PAC361055 among them. Its county holds 724, 5 of them major permits; PAC361055 is a minor permit.

Other permits in the Donegal Creek subwatershed (HUC 020503060803)

156 W HARRISBURG AVE, Elizabethtown: PAD360095, minor permit, discharging to UNT To Donegal Creek, permit term to June 1, 2028
1925 SHEAFFER ROAD, Mount Joy, Township Of: PAC360644, minor permit, permit term to December 7, 2024
BRENT L. MILLER BUILDING, Lancaster: PAC360872, minor permit, permit term to December 7, 2024
CHS ELIZABETHTOWN, Elizabethtown: PAD360128, minor permit, discharging to Unnamed Stream, permit term to October 24, 2029
COLUMBIA WATER COMPANY, East Donegal, Township Of: PAC360747, minor permit, permit term to December 7, 2024
COMMUNITY BIBLE CHURCH PARKING LOT EXPANSION, East Donegal, Township Of: PAC360362, minor permit, permit term to December 7, 2024
DURHAM SCHOOL SERVICES, Elizabethtown: PAG033898, minor permit, discharging to UNT To Donegal Creek, permit term to March 23, 2028
FLORIN HILL, Mount Joy: PAD360126, minor permit, discharging to UNT To Donegal Creek, permit term to March 11, 2030
FLORIN HILL RENEWAL, Mount Joy, Borough Of: PAC360401, minor permit, permit term to May 15, 2024
GARNER SUBDIVISION, West Donegal, Township Of: PAC360791, minor permit, permit term to December 7, 2024

What the register holds for WESTMOUNT DEVELOPMENT: its NPDES ID, its permit type and status, its dates, its address in Mount Joy, Township Of, Pennsylvania. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES PAC361055.

Identity

Facility as filed	WESTMOUNT DEVELOPMENT
Permittee as filed	Vistablock, LLC
NPDES ID	PAC361055
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	March 30, 2026
Expiration date	December 7, 2029
Issuing agency	Lancaster County Conservation District
Address	Mount Joy, Township Of, PA 17601
Receiving water impaired	303(D) Listed
Subwatershed	Donegal Creek (HUC 020503060803)

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 PAC361055.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES PAC361055.

Inspections

EPA’s inspection file holds no inspection for NPDES PAC361055.

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 PAC361055.

Watch this permit

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Nearby on the register

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

The WESTMOUNT DEVELOPMENT storm water construction permit (PAC361055), issued to Vistablock, LLC in Mount Joy Township, Lancaster County, is one of 502 storm water construction permits on EPA's NPDES register in Lancaster County, including this one, and it was issued earlier than 91.0% of those 502. It also sits among 31 NPDES permits in the Donegal Creek subwatershed, this one included, and the filing shows no pollutants under a numeric limit and no effluent exceedances, where 9.8% of the county's 502 storm water construction permits carry a violation on file.