Harcros Chemical Inc — NPDES permit LA0110825: limits, due date and EPA's record

Chemicals & Allied Products, Saint Gabriel, Louisiana. NPDES permit LA0110825 expired Sep 30, 2026; its limits still apply. Last 12 months: over a limit once (last December 2025). Source: EPA ECHO, Oct 22, 2026.

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
December 2025	BOD, carbonaceous [5 day, 20 C], monthly average	32.3 mg/L	≤ 10 mg/L	223%

Limits in force (289)

Parameter	Statistic	Limit	Months	Outfall
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous maximum	≤ 9 SU	all year	001
Oil & Grease	daily maximum	≤ 15 mg/L	all year	001
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	001
Cyanide, total [as CN]	daily maximum	≤ 100 ug/L	all year	001
Chloride [as Cl]	monthly average	report only (mg/L)	all year	001
Chloride [as Cl]	daily maximum	report only (mg/L)	all year	001
Sulfate, total [as SO4]	monthly average	report only (mg/L)	all year	001
Sulfate, total [as SO4]	daily maximum	report only (mg/L)	all year	001
Arsenic, total [as As]	daily maximum	≤ 100 ug/L	all year	001
Beryllium, total [as Be]	daily maximum	≤ 100 ug/L	all year	001
Cadmium, total [as Cd]	daily maximum	≤ 100 ug/L	all year	001
Chromium, total [as Cr]	daily maximum	≤ 150 ug/L	all year	001
Copper, total [as Cu]	daily maximum	≤ 500 ug/L	all year	001
Lead, total [as Pb]	daily maximum	≤ 150 ug/L	all year	001
Thallium, total [as Tl]	daily maximum	≤ 100 ug/L	all year	001
Nickel, total [as Ni]	daily maximum	≤ 500 ug/L	all year	001
Silver, total [as Ag]	daily maximum	≤ 100 ug/L	all year	001
Zinc, total [as Zn]	daily maximum	≤ 1000 ug/L	all year	001
Antimony, total [as Sb]	daily maximum	≤ 600 ug/L	all year	001
Selenium, total [as Se]	daily maximum	≤ 100 ug/L	all year	001
Dichlorobromomethane	daily maximum	≤ 100 ug/L	all year	001
Carbon tetrachloride	daily maximum	≤ 100 ug/L	all year	001
1,2-Dichloroethane	daily maximum	≤ 100 ug/L	all year	001
Bromoform	daily maximum	≤ 100 ug/L	all year	001
Dibromochloromethane	daily maximum	≤ 100 ug/L	all year	001
Chloroform	daily maximum	≤ 100 ug/L	all year	001
Phenolics, total recoverable	daily maximum	≤ 500 ug/L	all year	001
Toluene	daily maximum	≤ 100 ug/L	all year	001
Benzene	daily maximum	≤ 100 ug/L	all year	001
.delta.-BHC	daily maximum	≤ 10 ug/L	all year	001
Acenaphthylene	daily maximum	≤ 100 ug/L	all year	001
Acenaphthene	daily maximum	≤ 100 ug/L	all year	001
Acrolein	daily maximum	≤ 100 ug/L	all year	001
Acrylonitrile	daily maximum	≤ 100 ug/L	all year	001
Anthracene	daily maximum	≤ 100 ug/L	all year	001
Benzo[b]fluoranthene	daily maximum	≤ 100 ug/L	all year	001
Benzo[k]fluoranthene	daily maximum	≤ 100 ug/L	all year	001
Benzo[a]pyrene	daily maximum	≤ 100 ug/L	all year	001
Bis[2-chloroethyl] ether	daily maximum	≤ 100 ug/L	all year	001
Bis[2-chloroethoxy]methane	daily maximum	≤ 100 ug/L	all year	001
Bis[2-chloroisopropyl] ether	daily maximum	≤ 100 ug/L	all year	001
Butyl benzyl phthalate	daily maximum	≤ 100 ug/L	all year	001
Chlorobenzene	daily maximum	≤ 100 ug/L	all year	001
Chrysene	daily maximum	≤ 100 ug/L	all year	001
Diethyl phthalate	daily maximum	≤ 100 ug/L	all year	001
Dimethyl phthalate	daily maximum	≤ 100 ug/L	all year	001
1,2-Diphenylhydrazine	daily maximum	≤ 100 ug/L	all year	001
Endosulfan sulfate	daily maximum	≤ 10 ug/L	all year	001
.beta.-Endosulfan	daily maximum	≤ 10 ug/L	all year	001
.alpha.-Endosulfan	daily maximum	≤ 10 ug/L	all year	001
Endrin aldehyde	daily maximum	≤ 10 ug/L	all year	001
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	001
Fluoranthene	daily maximum	≤ 100 ug/L	all year	001
Fluorene	daily maximum	≤ 100 ug/L	all year	001
Hexachlorocyclopentadiene	daily maximum	≤ 100 ug/L	all year	001
Hexachlorobutadiene	daily maximum	≤ 100 ug/L	all year	001
Hexachloroethane	daily maximum	≤ 100 ug/L	all year	001
Indeno[1,2,3-cd]pyrene	daily maximum	≤ 100 ug/L	all year	001
Isophorone	daily maximum	≤ 100 ug/L	all year	001
Methyl bromide [Bromomethane]	daily maximum	≤ 100 ug/L	all year	001
Methyl chloride [Chloromethane]	daily maximum	≤ 100 ug/L	all year	001
Methylene chloride	daily maximum	≤ 100 ug/L	all year	001
N-Nitrosodi-N-propylamine	daily maximum	≤ 100 ug/L	all year	001
N-Nitrosodiphenylamine	daily maximum	≤ 100 ug/L	all year	001
N-Nitrosodimethylamine [NDMA]	daily maximum	≤ 100 ug/L	all year	001
Nitrobenzene	daily maximum	≤ 100 ug/L	all year	001
para-Chloro-meta-cresol	daily maximum	≤ 100 ug/L	all year	001
Phenanthrene	daily maximum	≤ 100 ug/L	all year	001
Pyrene	daily maximum	≤ 100 ug/L	all year	001
Tetrachloroethylene	daily maximum	≤ 100 ug/L	all year	001
1,1-Dichloroethane	daily maximum	≤ 100 ug/L	all year	001
1,1-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	001
1,1,1-Trichloroethane	daily maximum	≤ 100 ug/L	all year	001
1,1,2-Trichloroethane	daily maximum	≤ 100 ug/L	all year	001
1,1,2,2-Tetrachloroethane	daily maximum	≤ 100 ug/L	all year	001
Benzo[ghi]perylene	daily maximum	≤ 100 ug/L	all year	001
Benzo[a]anthracene	daily maximum	≤ 100 ug/L	all year	001
1,2-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	001
1,2-Dichloropropane	daily maximum	≤ 100 ug/L	all year	001
trans-1,2-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	001
1,2,4-Trichlorobenzene	daily maximum	≤ 100 ug/L	all year	001
Dibenz[a,h]anthracene	daily maximum	≤ 100 ug/L	all year	001
1,3-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	001
1,4-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	001
2-Chloroethyl vinyl ether, [mixed]	daily maximum	≤ 100 ug/L	all year	001
2-Chloronaphthalene	daily maximum	≤ 100 ug/L	all year	001
2-Chlorophenol	daily maximum	≤ 100 ug/L	all year	001
2-Nitrophenol	daily maximum	≤ 100 ug/L	all year	001
Di-n-octyl phthalate	daily maximum	≤ 100 ug/L	all year	001
2,4-Dichlorophenol	daily maximum	≤ 100 ug/L	all year	001
2,4-Dimethylphenol	daily maximum	≤ 100 ug/L	all year	001
2,4-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	001
2,4-Dinitrophenol	daily maximum	≤ 100 ug/L	all year	001
2,4,6-Trichlorophenol	daily maximum	≤ 100 ug/L	all year	001
2,6-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	001
3,3'-Dichlorobenzidine	daily maximum	≤ 100 ug/L	all year	001
4-Bromophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	001
4-Chlorophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	001
4-Nitrophenol	daily maximum	≤ 100 ug/L	all year	001
4,6-Dinitro-o-cresol	daily maximum	≤ 100 ug/L	all year	001
PCB-1016	daily maximum	≤ 0 ug/L	all year	001
2,3,7,8-Tetrachlorodibenzo-p-dioxin	daily maximum	≤ 5 ug/L	all year	001
Phenol	daily maximum	≤ 100 ug/L	all year	001
Naphthalene	daily maximum	≤ 100 ug/L	all year	001
Pentachlorophenol	daily maximum	≤ 100 ug/L	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 100 ug/L	all year	001
Di-n-butyl phthalate	daily maximum	≤ 100 ug/L	all year	001
Benzidine	daily maximum	≤ 100 ug/L	all year	001
Vinyl chloride	daily maximum	≤ 100 ug/L	all year	001
Trichloroethylene	daily maximum	≤ 100 ug/L	all year	001
4,4'-DDT	daily maximum	≤ 10 ug/L	all year	001
4,4'-DDD	daily maximum	≤ 10 ug/L	all year	001
4,4'-DDE	daily maximum	≤ 10 ug/L	all year	001
Aldrin	daily maximum	≤ 10 ug/L	all year	001
.alpha.-BHC	daily maximum	≤ 10 ug/L	all year	001
.beta.-BHC	daily maximum	≤ 10 ug/L	all year	001
.gamma.-BHC	daily maximum	≤ 10 ug/L	all year	001
Dieldrin	daily maximum	≤ 10 ug/L	all year	001
Endrin	daily maximum	≤ 5 ug/L	all year	001
Toxaphene	daily maximum	≤ 10 ug/L	all year	001
Heptachlor	daily maximum	≤ 10 ug/L	all year	001
Heptachlor epoxide	daily maximum	≤ 10 ug/L	all year	001
PCB-1221	daily maximum	≤ 0 ug/L	all year	001
PCB-1232	daily maximum	≤ 0 ug/L	all year	001
PCB-1242	daily maximum	≤ 0 ug/L	all year	001
PCB-1248	daily maximum	≤ 0 ug/L	all year	001
PCB-1254	daily maximum	≤ 0 ug/L	all year	001
PCB-1260	daily maximum	≤ 0 ug/L	all year	001
Hexachlorobenzene	daily maximum	≤ 100 ug/L	all year	001
BTEX	daily maximum	≤ 250 ug/L	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlordane	daily maximum	≤ 10 ug/L	all year	001
Mercury, total [as Hg]	daily maximum	≤ 10 ug/L	all year	001
1,3-Dichloropropene	daily maximum	≤ 100 ug/L	all year	001
Chloroethane	daily maximum	≤ 100 ug/L	all year	001
Oxygen, dissolved [DO]	monthly average minimum	≥ 5 mg/L	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
Solids, total suspended	monthly average	≤ 30 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	003
Nitrogen, total [as N]	monthly average	report only (mg/L)	all year	003
Nitrogen, total [as N]	daily maximum	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	monthly average	≤ 2 mg/L	all year	003
Phosphorus, total [as P]	monthly average	report only (mg/L)	all year	003
Phosphorus, total [as P]	daily maximum	report only (mg/L)	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (gal/d)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	003
Coliform, fecal general	monthly average	≤ 200 #/100mL	all year	003
Coliform, fecal general	daily maximum	≤ 400 #/100mL	all year	003
BOD, carbonaceous [5 day, 20 C]	monthly average	≤ 10 mg/L	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
Oil & Grease	daily maximum	≤ 15 mg/L	all year	004
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	004
Cyanide, total [as CN]	daily maximum	≤ 100 ug/L	all year	004
Chloride [as Cl]	monthly average	report only (mg/L)	all year	004
Chloride [as Cl]	daily maximum	report only (mg/L)	all year	004
Sulfate, total [as SO4]	monthly average	report only (mg/L)	all year	004
Sulfate, total [as SO4]	daily maximum	report only (mg/L)	all year	004
Arsenic, total [as As]	daily maximum	≤ 100 ug/L	all year	004
Beryllium, total [as Be]	daily maximum	≤ 100 ug/L	all year	004
Cadmium, total [as Cd]	daily maximum	≤ 100 ug/L	all year	004
Chromium, total [as Cr]	daily maximum	≤ 150 ug/L	all year	004
Copper, total [as Cu]	daily maximum	≤ 500 ug/L	all year	004
Lead, total [as Pb]	daily maximum	≤ 150 ug/L	all year	004
Thallium, total [as Tl]	daily maximum	≤ 100 ug/L	all year	004
Nickel, total [as Ni]	daily maximum	≤ 500 ug/L	all year	004
Silver, total [as Ag]	daily maximum	≤ 100 ug/L	all year	004
Zinc, total [as Zn]	daily maximum	≤ 1000 ug/L	all year	004
Antimony, total [as Sb]	daily maximum	≤ 600 ug/L	all year	004
Selenium, total [as Se]	daily maximum	≤ 100 ug/L	all year	004
Dichlorobromomethane	daily maximum	≤ 100 ug/L	all year	004
Carbon tetrachloride	daily maximum	≤ 100 ug/L	all year	004
1,2-Dichloroethane	daily maximum	≤ 100 ug/L	all year	004
Bromoform	daily maximum	≤ 100 ug/L	all year	004
Dibromochloromethane	daily maximum	≤ 100 ug/L	all year	004
Chloroform	daily maximum	≤ 100 ug/L	all year	004
Phenolics, total recoverable	daily maximum	≤ 500 ug/L	all year	004
Toluene	daily maximum	≤ 100 ug/L	all year	004
Benzene	daily maximum	≤ 100 ug/L	all year	004
.delta.-BHC	daily maximum	≤ 10 ug/L	all year	004
Acenaphthylene	daily maximum	≤ 100 ug/L	all year	004
Acenaphthene	daily maximum	≤ 100 ug/L	all year	004
Acrolein	daily maximum	≤ 100 ug/L	all year	004
Acrylonitrile	daily maximum	≤ 100 ug/L	all year	004
Anthracene	daily maximum	≤ 100 ug/L	all year	004
Benzo[b]fluoranthene	daily maximum	≤ 100 ug/L	all year	004
Benzo[k]fluoranthene	daily maximum	≤ 100 ug/L	all year	004
Benzo[a]pyrene	daily maximum	≤ 100 ug/L	all year	004
Bis[2-chloroethyl] ether	daily maximum	≤ 100 ug/L	all year	004
Bis[2-chloroethoxy]methane	daily maximum	≤ 100 ug/L	all year	004
Bis[2-chloroisopropyl] ether	daily maximum	≤ 100 ug/L	all year	004
Butyl benzyl phthalate	daily maximum	≤ 100 ug/L	all year	004
Chlorobenzene	daily maximum	≤ 100 ug/L	all year	004
Chrysene	daily maximum	≤ 100 ug/L	all year	004
Diethyl phthalate	daily maximum	≤ 100 ug/L	all year	004
Dimethyl phthalate	daily maximum	≤ 100 ug/L	all year	004
1,2-Diphenylhydrazine	daily maximum	≤ 100 ug/L	all year	004
Endosulfan sulfate	daily maximum	≤ 10 ug/L	all year	004
.beta.-Endosulfan	daily maximum	≤ 10 ug/L	all year	004
.alpha.-Endosulfan	daily maximum	≤ 10 ug/L	all year	004
Endrin aldehyde	daily maximum	≤ 10 ug/L	all year	004
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	004
Fluoranthene	daily maximum	≤ 100 ug/L	all year	004
Fluorene	daily maximum	≤ 100 ug/L	all year	004
Hexachlorocyclopentadiene	daily maximum	≤ 100 ug/L	all year	004
Hexachlorobutadiene	daily maximum	≤ 100 ug/L	all year	004
Hexachloroethane	daily maximum	≤ 100 ug/L	all year	004
Indeno[1,2,3-cd]pyrene	daily maximum	≤ 100 ug/L	all year	004
Isophorone	daily maximum	≤ 100 ug/L	all year	004
Methyl bromide [Bromomethane]	daily maximum	≤ 100 ug/L	all year	004
Methyl chloride [Chloromethane]	daily maximum	≤ 100 ug/L	all year	004
Methylene chloride	daily maximum	≤ 100 ug/L	all year	004
N-Nitrosodi-N-propylamine	daily maximum	≤ 100 ug/L	all year	004
N-Nitrosodiphenylamine	daily maximum	≤ 100 ug/L	all year	004
N-Nitrosodimethylamine [NDMA]	daily maximum	≤ 100 ug/L	all year	004
Nitrobenzene	daily maximum	≤ 100 ug/L	all year	004
para-Chloro-meta-cresol	daily maximum	≤ 100 ug/L	all year	004
Phenanthrene	daily maximum	≤ 100 ug/L	all year	004
Pyrene	daily maximum	≤ 100 ug/L	all year	004
Tetrachloroethylene	daily maximum	≤ 100 ug/L	all year	004
1,1-Dichloroethane	daily maximum	≤ 100 ug/L	all year	004
1,1-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	004
1,1,1-Trichloroethane	daily maximum	≤ 100 ug/L	all year	004
1,1,2-Trichloroethane	daily maximum	≤ 100 ug/L	all year	004
1,1,2,2-Tetrachloroethane	daily maximum	≤ 100 ug/L	all year	004
Benzo[ghi]perylene	daily maximum	≤ 100 ug/L	all year	004
Benzo[a]anthracene	daily maximum	≤ 100 ug/L	all year	004
1,2-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	004
1,2-Dichloropropane	daily maximum	≤ 100 ug/L	all year	004
trans-1,2-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	004
1,2,4-Trichlorobenzene	daily maximum	≤ 100 ug/L	all year	004
Dibenz[a,h]anthracene	daily maximum	≤ 100 ug/L	all year	004
1,3-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	004
1,4-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	004
2-Chloroethyl vinyl ether, [mixed]	daily maximum	≤ 100 ug/L	all year	004
2-Chloronaphthalene	daily maximum	≤ 100 ug/L	all year	004
2-Chlorophenol	daily maximum	≤ 100 ug/L	all year	004
2-Nitrophenol	daily maximum	≤ 100 ug/L	all year	004
Di-n-octyl phthalate	daily maximum	≤ 100 ug/L	all year	004
2,4-Dichlorophenol	daily maximum	≤ 100 ug/L	all year	004
2,4-Dimethylphenol	daily maximum	≤ 100 ug/L	all year	004
2,4-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	004
2,4-Dinitrophenol	daily maximum	≤ 100 ug/L	all year	004
2,4,6-Trichlorophenol	daily maximum	≤ 100 ug/L	all year	004
2,6-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	004
3,3'-Dichlorobenzidine	daily maximum	≤ 100 ug/L	all year	004
4-Bromophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	004
4-Chlorophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	004
4-Nitrophenol	daily maximum	≤ 100 ug/L	all year	004
4,6-Dinitro-o-cresol	daily maximum	≤ 100 ug/L	all year	004
PCB-1016	daily maximum	≤ 0 ug/L	all year	004
2,3,7,8-Tetrachlorodibenzo-p-dioxin	daily maximum	≤ 5 ug/L	all year	004
Phenol	daily maximum	≤ 100 ug/L	all year	004
Naphthalene	daily maximum	≤ 100 ug/L	all year	004
Pentachlorophenol	daily maximum	≤ 100 ug/L	all year	004
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 100 ug/L	all year	004
Di-n-butyl phthalate	daily maximum	≤ 100 ug/L	all year	004
Benzidine	daily maximum	≤ 100 ug/L	all year	004
Vinyl chloride	daily maximum	≤ 100 ug/L	all year	004
Trichloroethylene	daily maximum	≤ 100 ug/L	all year	004
4,4'-DDT	daily maximum	≤ 10 ug/L	all year	004
4,4'-DDD	daily maximum	≤ 10 ug/L	all year	004
4,4'-DDE	daily maximum	≤ 10 ug/L	all year	004
Aldrin	daily maximum	≤ 10 ug/L	all year	004
.alpha.-BHC	daily maximum	≤ 10 ug/L	all year	004
.beta.-BHC	daily maximum	≤ 10 ug/L	all year	004
.gamma.-BHC	daily maximum	≤ 10 ug/L	all year	004
Dieldrin	daily maximum	≤ 10 ug/L	all year	004
Endrin	daily maximum	≤ 5 ug/L	all year	004
Toxaphene	daily maximum	≤ 10 ug/L	all year	004
Heptachlor	daily maximum	≤ 10 ug/L	all year	004
Heptachlor epoxide	daily maximum	≤ 10 ug/L	all year	004
PCB-1221	daily maximum	≤ 0 ug/L	all year	004
PCB-1232	daily maximum	≤ 0 ug/L	all year	004
PCB-1242	daily maximum	≤ 0 ug/L	all year	004
PCB-1248	daily maximum	≤ 0 ug/L	all year	004
PCB-1254	daily maximum	≤ 0 ug/L	all year	004
PCB-1260	daily maximum	≤ 0 ug/L	all year	004
Hexachlorobenzene	daily maximum	≤ 100 ug/L	all year	004
BTEX	daily maximum	≤ 250 ug/L	all year	004
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	004
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	004
Chlordane	daily maximum	≤ 10 ug/L	all year	004
Mercury, total [as Hg]	daily maximum	≤ 10 ug/L	all year	004
1,3-Dichloropropene	daily maximum	≤ 100 ug/L	all year	004
Chloroethane	daily maximum	≤ 100 ug/L	all year	004

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/LA0110825 · MCP: https://passage-data.com/mcp