Clean Water Act discharge permit · NPDES PAC430148

MERCER MIDDLESEX SOLAR PROJECTS, Lackawannock, Township Of, PA: NPDES PAC430148 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

MERCER MIDDLESEX SOLAR PROJECTS, held by Mercer Middlesex I, LLC, holds NPDES permit PAC430148. EPA’s file records it issued March 9, 2026 and expiring December 7, 2029.

MERCER MIDDLESEX SOLAR PROJECTS, Lackawannock, Township Of, Pennsylvania: Coverage under a general permit PAC430148, held by Mercer Middlesex I, LLC; Construction stormwater; Effective; issued March 9, 2026, term to December 7, 2029, by Mercer County Conservation District; Solar Electric Power Generation.

Pennsylvania holds 4,048 Construction stormwater coverages of this permit type in EPA’s file; 3,615 were issued before PAC430148.

Coverages issued nearest PAC430148

March 6, 2026: LEGACY-TWO STUDENT HOMES/ATHLETIC FIELDS, South Hanover, Township Of, PAC220511, held by Hershey Trust Company, Trustee for Milton Hershey School
March 6, 2026: NORTH HALL BUILDING ADDITION, Lebanon, PAC380390, held by Lebanon Valley Exposition Center
March 9, 2026: OXFORD AVENUE - EASTERN IMPROVEMENTS, Conewago, Township Of, PAC010312, held by Penn State Management
March 9, 2026: EVERGREEN HEIGHTS, Brighton, PAC040189, held by Third Street Beaver Associates, LLC
March 9, 2026: PAWC 2,000,000 GALLON HERSHEY RESERVOIR, Derry, Township Of, PAC220513, held by Pennsylvania American Water Company
March 10, 2026: KOKHANEVICH RESIDENCE, Greene, Township Of, PAC250249, held by Leonid Kokhanevich
March 10, 2026: MARTIN CUSTOM FARMING, Southampton, Township Of, PAC280438, held by Martin Custom Farming
March 10, 2026: TRAVIS HUDSON SOLAR DEVELOPMENT, Antrim, Township Of, PAC280442, held by SR PA TH, LLC
March 10, 2026: GREYSTONE STORAGE OF SUGARLOAF, Sugarloaf, Township Of, PAC400360, held by Greystone Storage of Sugarloaf, LLC
March 11, 2026: MICHELE GRUMBINE AG OPERATION, Myerstown, PAC380395, held by Michele Grumbine

MERCER MIDDLESEX SOLAR PROJECTS among its neighbors

EPA’s permit file holds 14 discharge permits in the West Branch Little Neshannock Creek subwatershed (HUC 050301020505), PAC430148 among them. Its county holds 148, 3 of them major permits; PAC430148 is a minor permit.

Other permits in the West Branch Little Neshannock Creek subwatershed (HUC 050301020505)

11 EVERGREEN LN SRSTP, New Wilmington: PAG041470, minor permit, discharging to West Branch Little Neshannock Creek, permit term to November 11, 2028
153 COWDEN RD SRSTP, New Wilmington: PAG041427, minor permit, discharging to UNT To West Branch Little Neshannock Creek, permit term to November 11, 2028
1776 S NESHANNOCK RD SRSTP, Hermitage: PAG041338, minor permit, discharging to West Branch Little Neshannock Creek, permit term to November 11, 2028
718 GREENFIELD RD SFTF, Mercer: PAG041304, minor permit, discharging to West Branch Little Neshannock Creek, permit term to November 11, 2028
BEND RD SRSTP, New Wilmington: PA0293041, minor permit, discharging to UNT To West Branch Little Neshannock Creek, permit term to June 30, 2028
DAVID DAWSON, New Wilmington: PAG048467, minor permit, discharging to TRIB OF W BR LITTLE NESHANNOCK CRK, permit term to June 1, 2008
GREENAWALT, RONALD E SFTF, Hermitage: PAG048792, minor permit, discharging to UNT W BRANCH LITTLE NESHANNOCK CRK, permit term to June 26, 2007
HEATHER CASEY SFTF, Hermitage: PA0289493, minor permit, discharging to West Branch Little Neshannock Creek, permit term to August 31, 2026
IRONS MILL FARMSTEAD, Lackawannock, Township Of: PAC430139, minor permit, permit term to December 7, 2029
JOHN & MELINDA HOLFELDER JR, New Wilmington: PAG048478, minor permit, discharging to TRIB WEST BR LITTLE NESHANNOCK CRK, permit term to November 17, 2007

What the register holds for MERCER MIDDLESEX SOLAR PROJECTS: its NPDES ID, its permit type and status, its dates, its address in Lackawannock, Township Of, Pennsylvania. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES PAC430148.

Identity

Facility as filed	MERCER MIDDLESEX SOLAR PROJECTS
Permittee as filed	Mercer Middlesex I, LLC
NPDES ID	PAC430148
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 9, 2026
Expiration date	December 7, 2029
Issuing agency	Mercer County Conservation District
Address	Lackawannock, Township Of, PA 16142
Receiving water impaired	303(D) Listed
Subwatershed	West Branch Little Neshannock Creek (HUC 050301020505)
NAICS	221114 – Solar Electric Power Generation

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 PAC430148.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES PAC430148.

Inspections

EPA’s inspection file holds no inspection for NPDES PAC430148.

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 PAC430148.

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, PAC430148.

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Nearby on the register

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

MERCER MIDDLESEX SOLAR PROJECTS is one of 21 storm water construction permits on EPA's NPDES register in Mercer County, where 0.0% of those permits have a violation on file. The permit is included among 14 NPDES permits in the West Branch Little Neshannock Creek subwatershed, and 71.4% of the 21 storm water construction permits in Mercer County have an earlier issue date than this permit.