Clean Water Act discharge permit · NPDES NJG342122

COMPRESSOR STATION 505 HORSE POWER ADDITION, Branchburg Twp, NJ: NPDES NJG342122 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

COMPRESSOR STATION 505 HORSE POWER ADDITION, held by TRANSCONTINENTAL GAS PIPE LINE CO LLC, holds NPDES permit NJG342122. EPA’s file records it issued February 10, 2023 and expiring February 28, 2027.

COMPRESSOR STATION 505 HORSE POWER ADDITION, Branchburg Twp, New Jersey: Coverage under a general permit NJG342122, held by TRANSCONTINENTAL GAS PIPE LINE CO LLC; Effective; issued February 10, 2023, term to February 28, 2027.

Other permits held by TRANSCONTINENTAL GAS PIPE LINE CO LLC

COMPRESSOR STATION 201, West Deptford Twp: NJG342114, issued February 10, 2023
COMPRESSOR STATION 201, West Deptford Twp: NJG350508, issued October 26, 2023
TRANSCONTINENTAL GAS PIPELINE COMPANY, LLC (, Kearny Town: NJG367168, issued March 31, 2025
MAINLINE A MP 1782 DOT REPLACEMENT, Princeton: NJG371262, issued July 1, 2025
30 MAINLINE A MP 1782 DOT REPLACEMENT PROJ, South Brunswick Twp: NJG371408, issued June 19, 2025
30 MAINLINE A MP 1782 DOT REPLACEMENT PROJ, Franklin Twp: NJG371416, issued June 19, 2025
TRANSCO 30 MAINLINE A & 10 HARRISON LATERAL, Kearny Town: NJG371424, issued June 19, 2025
WILLIAMS STATION 505 PROJECT, Branchburg Twp: NJG376418, issued October 28, 2025
MAINLINE CALDWELL B GREEN BROOK CREEK EXPOS, North Caldwell Boro: NJG377660, issued December 10, 2025
TRANSCO NJ TURNPIKE RELOCATION MP 24, Springfield Twp: NJG379638, issued January 23, 2026

COMPRESSOR STATION 505 HORSE POWER ADDITION among its neighbors

EPA’s permit file holds 26 discharge permits in the Lower South Branch Raritan River subwatershed (HUC 020301050109), NJG342122 among them. Its county holds 803, 2 of them major permits; NJG342122 is a minor permit.

Other permits in the Lower South Branch Raritan River subwatershed (HUC 020301050109)

14 HOLLAND BROOK, Readington Twp: NJG268062, minor permit, permit term to February 28, 2022
ASPIRE PHARMACEUTICALS INC, Branchburg Twp: NJG164810, minor permit, permit term to January 31, 2023
BRANCHBURG VILLAGE, Branchburg Twp: NJG376906, minor permit, permit term to February 28, 2027
CHRISTIAN COMMUNITY CHAPEL-BLOCK 147LOT 20.01, Hillsborough Twp: NJG294888, minor permit, permit term to February 28, 2022
CONIFER-YORK VILLAGE, Branchburg Twp: NJG302988, minor permit, permit term to February 28, 2022
DEERFIELD CREEK MAJOR SUBDIVISION, Branchburg Twp: NJG384283, minor permit, permit term to February 28, 2027
HILLCREST PARK STORMWATER MANAGEMENT PROJECT, Readington Twp: NJG287270, minor permit, permit term to February 28, 2022
HOMESTEAD @ BRANCHBURG, Branchburg Twp: NJG214442, minor permit, permit term to February 28, 2022
IMCLONE SYSTEMS LLC, Branchburg Twp: NJG160903, minor permit, permit term to January 31, 2023
KASPER RESIDENCE, Hillsborough Twp: NJG376841, minor permit, permit term to February 28, 2027

What the register holds for COMPRESSOR STATION 505 HORSE POWER ADDITION: its NPDES ID, its permit type and status, its dates, its address in Branchburg Twp, New Jersey. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NJG342122.

Identity

Facility as filed	COMPRESSOR STATION 505 HORSE POWER ADDITION
Permittee as filed	TRANSCONTINENTAL GAS PIPE LINE CO LLC
NPDES ID	NJG342122
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	February 10, 2023
Expiration date	February 28, 2027
Address	Branchburg Twp, NJ 08876
Receiving water impaired	303(D) Listed
Subwatershed	Lower South Branch Raritan River (HUC 020301050109)

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 NJG342122.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NJG342122.

Inspections

EPA’s inspection file holds no inspection for NPDES NJG342122.

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 NJG342122.

Watch this permit

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Nearby on the register

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

The COMPRESSOR STATION 505 HORSE POWER ADDITION general permit coverage in Branchburg Twp is one of 787 general permit coverages in Somerset County, and its 26 peer NPDES permits in the Lower South Branch Raritan River subwatershed (HUC 020301050109) place it among the 26 permits sharing that watershed. Of the 787 Somerset County coverages, 3.8% have a violation on file, and 74.2% of them were issued earlier than this permit, which records 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.