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Clean Water Act discharge permit · NPDES NJG005134

HERCULES GIBBSTOWN GROUNDWATER TREATMENT SITE, Greenwich Twp, NJ: NPDES NJG005134 discharge permit, effluent exceedances, inspections, penalties

HERCULES GIBBSTOWN GROUNDWATER TREATMENT SITE, held by HERCULES LLC, holds NPDES permit NJG005134. EPA’s file records it issued August 26, 2020 and expiring July 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedHERCULES GIBBSTOWN GROUNDWATER TREATMENT SITE
Permittee as filedHERCULES LLC
NPDES IDNJG005134
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 26, 2020
Expiration dateJuly 31, 2025
AddressGreenwich Twp, NJ 08027
Receiving water impaired303(D) Listed
SubwatershedWoodbury Creek-Delaware River (HUC 020402020507)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 114 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
2,3,7,8-Tetrachlorodibenzo-p-dioxin264February 28, 20269,900% over the limit
.alpha.-Endosulfan242February 28, 202615% over the limit
Chlordane [tech mix. and metabolites]242February 28, 202610% over the limit
Cyanide, total [as CN]260
Mercury, total [as Hg]260
pH220
Solids, total suspended220
Carbon, tot organic [TOC]220
Selenium, total recoverable220
Cadmium, total [as Cd]220
Chromium, total [as Cr]220
Copper, total [as Cu]220
Lead, total [as Pb]220
Nickel, total [as Ni]220
Silver, total [as Ag]220
Zinc, total [as Zn]220
Arsenic220
Dichlorobromomethane220
1,2-Dichloroethane220
Bromoform220
Chloroform220
Toluene220
Benzene220
Acenaphthylene220
Acrolein220
Acrylonitrile220
Anthracene220
Benzo[b]fluoranthene220
Benzo[k]fluoranthene220
Benzo[a]pyrene220
Bis[2-chloroethyl] ether220
Bis[2-chloroisopropyl] ether220
Butyl benzyl phthalate220
Chlorobenzene220
Chlorodibromomethane220
Chrysene220
Diethyl phthalate220
Dimethyl phthalate220
Endosulfan sulfate220
.beta.-Endosulfan220
Endrin aldehyde220
Ethylbenzene220
Fluoranthene220
Fluorene220
Hexachlorocyclopentadiene220
Hexachloroethane220
Indeno[1,2,3-cd]pyrene220
Isophorone220
Methyl bromide [Bromomethane]220
Methyl chloride [Chloromethane]220
Methylene chloride220
N-Nitrosodiphenylamine220
N-Nitrosodimethylamine [NDMA]220
Nitrobenzene220
Pyrene220
Tetrachloroethylene220
1,1-Dichloroethane220
1,1-Dichloroethylene220
1,1,1-Trichloroethane220
1,1,2-Trichloroethane220

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES NJG005134.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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, NJG005134.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NJG005134 there.

Nearby on the register

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