Deep South Chemical Inc. — NPDES permit LA0127175: limits, due date and EPA's record

Chemicals & Allied Products, Broussard, Louisiana. NPDES permit LA0127175, in force until Feb 28, 2030. Last 12 months: no values over a limit, 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Limits in force (292)

Parameter	Statistic	Limit	Months	Outfall
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 45 mg/L	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous maximum	≤ 8.5 SU	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 45 mg/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
Coliform, fecal general	monthly geometric mean	≤ 200 #/100mL	all year	001
Coliform, fecal general	daily maximum	≤ 400 #/100mL	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	002
BOD, 5-day, 20 deg. C	daily maximum	≤ 45 mg/L	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 8.5 SU	all year	002
Solids, total suspended	monthly average	≤ 30 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Coliform, fecal general	monthly geometric mean	≤ 200 #/100mL	all year	002
Coliform, fecal general	daily maximum	≤ 400 #/100mL	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Oil & Grease	daily maximum	≤ 15 mg/L	all year	003
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	003
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	003
Carbon, tot organic [TOC]	daily maximum	≤ 50 mg/L	all year	003
Cyanide, total [as CN]	daily maximum	≤ 100 ug/L	all year	003
Cyanide, total [as CN]	daily maximum	≤ 100 ug/L	all year	003
Thiocyanate [as SCN]	daily maximum	report only (ug/L)	all year	003
Thiocyanate [as SCN]	daily maximum	report only (ug/L)	all year	003
Arsenic, total [as As]	daily maximum	≤ 100 ug/L	all year	003
Arsenic, total [as As]	daily maximum	≤ 100 ug/L	all year	003
Beryllium, total [as Be]	daily maximum	≤ 100 ug/L	all year	003
Beryllium, total [as Be]	daily maximum	≤ 100 ug/L	all year	003
Cadmium, total [as Cd]	daily maximum	≤ 100 ug/L	all year	003
Cadmium, total [as Cd]	daily maximum	≤ 100 ug/L	all year	003
Chromium, total [as Cr]	daily maximum	≤ 150 ug/L	all year	003
Chromium, total [as Cr]	daily maximum	≤ 150 ug/L	all year	003
Copper, total [as Cu]	daily maximum	≤ 500 ug/L	all year	003
Copper, total [as Cu]	daily maximum	≤ 500 ug/L	all year	003
Lead, total [as Pb]	daily maximum	≤ 150 ug/L	all year	003
Lead, total [as Pb]	daily maximum	≤ 150 ug/L	all year	003
Thallium, total [as Tl]	daily maximum	≤ 100 ug/L	all year	003
Thallium, total [as Tl]	daily maximum	≤ 100 ug/L	all year	003
Nickel, total [as Ni]	daily maximum	≤ 500 ug/L	all year	003
Nickel, total [as Ni]	daily maximum	≤ 500 ug/L	all year	003
Silver, total [as Ag]	daily maximum	≤ 100 ug/L	all year	003
Silver, total [as Ag]	daily maximum	≤ 100 ug/L	all year	003
Zinc, total [as Zn]	daily maximum	≤ 1000 ug/L	all year	003
Zinc, total [as Zn]	daily maximum	≤ 1000 ug/L	all year	003
Antimony, total [as Sb]	daily maximum	≤ 600 ug/L	all year	003
Antimony, total [as Sb]	daily maximum	≤ 600 ug/L	all year	003
Selenium, total [as Se]	daily maximum	≤ 100 ug/L	all year	003
Selenium, total [as Se]	daily maximum	≤ 100 ug/L	all year	003
Dichlorobromomethane	daily maximum	≤ 100 ug/L	all year	003
Dichlorobromomethane	daily maximum	≤ 100 ug/L	all year	003
Carbon tetrachloride	daily maximum	≤ 100 ug/L	all year	003
Carbon tetrachloride	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichloroethane	daily maximum	≤ 100 ug/L	all year	003
Bromoform	daily maximum	≤ 100 ug/L	all year	003
Bromoform	daily maximum	≤ 100 ug/L	all year	003
Dibromochloromethane	daily maximum	≤ 100 ug/L	all year	003
Dibromochloromethane	daily maximum	≤ 100 ug/L	all year	003
Chloroform	daily maximum	≤ 100 ug/L	all year	003
Chloroform	daily maximum	≤ 100 ug/L	all year	003
Phenolics, total recoverable	daily maximum	≤ 500 ug/L	all year	003
Phenolics, total recoverable	daily maximum	≤ 500 ug/L	all year	003
Toluene	daily maximum	≤ 100 ug/L	all year	003
Toluene	daily maximum	≤ 100 ug/L	all year	003
Benzene	daily maximum	≤ 100 ug/L	all year	003
Benzene	daily maximum	≤ 100 ug/L	all year	003
.delta.-BHC	daily maximum	≤ 10 ug/L	all year	003
.delta.-BHC	daily maximum	≤ 10 ug/L	all year	003
Acenaphthylene	daily maximum	≤ 100 ug/L	all year	003
Acenaphthylene	daily maximum	≤ 100 ug/L	all year	003
Acenaphthene	daily maximum	≤ 100 ug/L	all year	003
Acenaphthene	daily maximum	≤ 100 ug/L	all year	003
Acrolein	daily maximum	≤ 100 ug/L	all year	003
Acrolein	daily maximum	≤ 100 ug/L	all year	003
Acrylonitrile	daily maximum	≤ 100 ug/L	all year	003
Acrylonitrile	daily maximum	≤ 100 ug/L	all year	003
Anthracene	daily maximum	≤ 100 ug/L	all year	003
Anthracene	daily maximum	≤ 100 ug/L	all year	003
Benzo[b]fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Benzo[b]fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Benzo[k]fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Benzo[k]fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Benzo[a]pyrene	daily maximum	≤ 100 ug/L	all year	003
Benzo[a]pyrene	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroethyl] ether	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroethyl] ether	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroethoxy]methane	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroethoxy]methane	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroisopropyl] ether	daily maximum	≤ 100 ug/L	all year	003
Bis[2-chloroisopropyl] ether	daily maximum	≤ 100 ug/L	all year	003
Butyl benzyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Butyl benzyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Chlorobenzene	daily maximum	≤ 100 ug/L	all year	003
Chlorobenzene	daily maximum	≤ 100 ug/L	all year	003
Chrysene	daily maximum	≤ 100 ug/L	all year	003
Chrysene	daily maximum	≤ 100 ug/L	all year	003
Diethyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Diethyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Dimethyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Dimethyl phthalate	daily maximum	≤ 100 ug/L	all year	003
1,2-Diphenylhydrazine	daily maximum	≤ 100 ug/L	all year	003
1,2-Diphenylhydrazine	daily maximum	≤ 100 ug/L	all year	003
Endosulfan sulfate	daily maximum	≤ 10 ug/L	all year	003
Endosulfan sulfate	daily maximum	≤ 10 ug/L	all year	003
.beta.-Endosulfan	daily maximum	≤ 10 ug/L	all year	003
.beta.-Endosulfan	daily maximum	≤ 10 ug/L	all year	003
.alpha.-Endosulfan	daily maximum	≤ 10 ug/L	all year	003
.alpha.-Endosulfan	daily maximum	≤ 10 ug/L	all year	003
Endrin aldehyde	daily maximum	≤ 10 ug/L	all year	003
Endrin aldehyde	daily maximum	≤ 10 ug/L	all year	003
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	003
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	003
Fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Fluoranthene	daily maximum	≤ 100 ug/L	all year	003
Fluorene	daily maximum	≤ 100 ug/L	all year	003
Fluorene	daily maximum	≤ 100 ug/L	all year	003
Hexachlorocyclopentadiene	daily maximum	≤ 100 ug/L	all year	003
Hexachlorocyclopentadiene	daily maximum	≤ 100 ug/L	all year	003
Hexachlorobutadiene	daily maximum	≤ 100 ug/L	all year	003
Hexachlorobutadiene	daily maximum	≤ 100 ug/L	all year	003
Hexachloroethane	daily maximum	≤ 100 ug/L	all year	003
Hexachloroethane	daily maximum	≤ 100 ug/L	all year	003
Indeno[1,2,3-cd]pyrene	daily maximum	≤ 100 ug/L	all year	003
Indeno[1,2,3-cd]pyrene	daily maximum	≤ 100 ug/L	all year	003
Isophorone	daily maximum	≤ 100 ug/L	all year	003
Isophorone	daily maximum	≤ 100 ug/L	all year	003
Methyl bromide [Bromomethane]	daily maximum	≤ 100 ug/L	all year	003
Methyl bromide [Bromomethane]	daily maximum	≤ 100 ug/L	all year	003
Methyl chloride [Chloromethane]	daily maximum	≤ 100 ug/L	all year	003
Methyl chloride [Chloromethane]	daily maximum	≤ 100 ug/L	all year	003
Methylene chloride	daily maximum	≤ 100 ug/L	all year	003
Methylene chloride	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodi-N-propylamine	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodi-N-propylamine	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodiphenylamine	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodiphenylamine	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodimethylamine [NDMA]	daily maximum	≤ 100 ug/L	all year	003
N-Nitrosodimethylamine [NDMA]	daily maximum	≤ 100 ug/L	all year	003
Nitrobenzene	daily maximum	≤ 100 ug/L	all year	003
Nitrobenzene	daily maximum	≤ 100 ug/L	all year	003
para-Chloro-meta-cresol	daily maximum	≤ 100 ug/L	all year	003
para-Chloro-meta-cresol	daily maximum	≤ 100 ug/L	all year	003
Phenanthrene	daily maximum	≤ 100 ug/L	all year	003
Phenanthrene	daily maximum	≤ 100 ug/L	all year	003
Pyrene	daily maximum	≤ 100 ug/L	all year	003
Pyrene	daily maximum	≤ 100 ug/L	all year	003
Tetrachloroethylene	daily maximum	≤ 100 ug/L	all year	003
Tetrachloroethylene	daily maximum	≤ 100 ug/L	all year	003
1,1-Dichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1-Dichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	003
1,1-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	003
1,1,1-Trichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1,1-Trichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1,2-Trichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1,2-Trichloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1,2,2-Tetrachloroethane	daily maximum	≤ 100 ug/L	all year	003
1,1,2,2-Tetrachloroethane	daily maximum	≤ 100 ug/L	all year	003
Benzo[ghi]perylene	daily maximum	≤ 100 ug/L	all year	003
Benzo[ghi]perylene	daily maximum	≤ 100 ug/L	all year	003
Benzo[a]anthracene	daily maximum	≤ 100 ug/L	all year	003
Benzo[a]anthracene	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichloropropane	daily maximum	≤ 100 ug/L	all year	003
1,2-Dichloropropane	daily maximum	≤ 100 ug/L	all year	003
trans-1,2-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	003
trans-1,2-Dichloroethylene	daily maximum	≤ 100 ug/L	all year	003
1,2,4-Trichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,2,4-Trichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
Dibenz[a,h]anthracene	daily maximum	≤ 100 ug/L	all year	003
Dibenz[a,h]anthracene	daily maximum	≤ 100 ug/L	all year	003
1,3-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,3-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,4-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
1,4-Dichlorobenzene	daily maximum	≤ 100 ug/L	all year	003
2-Chloroethyl vinyl ether, [mixed]	daily maximum	≤ 100 ug/L	all year	003
2-Chloroethyl vinyl ether, [mixed]	daily maximum	≤ 100 ug/L	all year	003
2-Chloronaphthalene	daily maximum	≤ 100 ug/L	all year	003
2-Chloronaphthalene	daily maximum	≤ 100 ug/L	all year	003
2-Chlorophenol	daily maximum	≤ 100 ug/L	all year	003
2-Chlorophenol	daily maximum	≤ 100 ug/L	all year	003
2-Nitrophenol	daily maximum	≤ 100 ug/L	all year	003
2-Nitrophenol	daily maximum	≤ 100 ug/L	all year	003
Di-n-octyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Di-n-octyl phthalate	daily maximum	≤ 100 ug/L	all year	003
2,4-Dichlorophenol	daily maximum	≤ 100 ug/L	all year	003
2,4-Dichlorophenol	daily maximum	≤ 100 ug/L	all year	003
2,4-Dimethylphenol	daily maximum	≤ 100 ug/L	all year	003
2,4-Dimethylphenol	daily maximum	≤ 100 ug/L	all year	003
2,4-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	003
2,4-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	003
2,4-Dinitrophenol	daily maximum	≤ 100 ug/L	all year	003
2,4-Dinitrophenol	daily maximum	≤ 100 ug/L	all year	003
2,4,6-Trichlorophenol	daily maximum	≤ 100 ug/L	all year	003
2,4,6-Trichlorophenol	daily maximum	≤ 100 ug/L	all year	003
2,6-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	003
2,6-Dinitrotoluene	daily maximum	≤ 100 ug/L	all year	003
3,3'-Dichlorobenzidine	daily maximum	≤ 100 ug/L	all year	003
3,3'-Dichlorobenzidine	daily maximum	≤ 100 ug/L	all year	003
4-Bromophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	003
4-Bromophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	003
4-Chlorophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	003
4-Chlorophenyl phenyl ether	daily maximum	≤ 100 ug/L	all year	003
4-Nitrophenol	daily maximum	≤ 100 ug/L	all year	003
4-Nitrophenol	daily maximum	≤ 100 ug/L	all year	003
4,6-Dinitro-o-cresol	daily maximum	≤ 100 ug/L	all year	003
4,6-Dinitro-o-cresol	daily maximum	≤ 100 ug/L	all year	003
PCB-1016	daily maximum	≤ 0 ug/L	all year	003
PCB-1016	daily maximum	≤ 0 ug/L	all year	003
2,3,7,8-Tetrachlorodibenzo-p-dioxin	daily maximum	≤ 5 ug/L	all year	003
2,3,7,8-Tetrachlorodibenzo-p-dioxin	daily maximum	≤ 5 ug/L	all year	003
Phenol	daily maximum	≤ 100 ug/L	all year	003
Phenol	daily maximum	≤ 100 ug/L	all year	003
Naphthalene	daily maximum	≤ 100 ug/L	all year	003
Naphthalene	daily maximum	≤ 100 ug/L	all year	003
Pentachlorophenol	daily maximum	≤ 100 ug/L	all year	003
Pentachlorophenol	daily maximum	≤ 100 ug/L	all year	003
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 100 ug/L	all year	003
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	≤ 100 ug/L	all year	003
Di-n-butyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Di-n-butyl phthalate	daily maximum	≤ 100 ug/L	all year	003
Benzidine	daily maximum	≤ 100 ug/L	all year	003
Benzidine	daily maximum	≤ 100 ug/L	all year	003
Vinyl chloride	daily maximum	≤ 100 ug/L	all year	003
Vinyl chloride	daily maximum	≤ 100 ug/L	all year	003
Trichloroethylene	daily maximum	≤ 100 ug/L	all year	003
Trichloroethylene	daily maximum	≤ 100 ug/L	all year	003
4,4'-DDT	daily maximum	≤ 10 ug/L	all year	003
4,4'-DDT	daily maximum	≤ 10 ug/L	all year	003
4,4'-DDD	daily maximum	≤ 10 ug/L	all year	003
4,4'-DDD	daily maximum	≤ 10 ug/L	all year	003
4,4'-DDE	daily maximum	≤ 10 ug/L	all year	003
4,4'-DDE	daily maximum	≤ 10 ug/L	all year	003
Aldrin	daily maximum	≤ 10 ug/L	all year	003
Aldrin	daily maximum	≤ 10 ug/L	all year	003
.alpha.-BHC	daily maximum	≤ 10 ug/L	all year	003
.alpha.-BHC	daily maximum	≤ 10 ug/L	all year	003
.beta.-BHC	daily maximum	≤ 10 ug/L	all year	003
.beta.-BHC	daily maximum	≤ 10 ug/L	all year	003
.gamma.-BHC	daily maximum	≤ 10 ug/L	all year	003
.gamma.-BHC	daily maximum	≤ 10 ug/L	all year	003
Dieldrin	daily maximum	≤ 10 ug/L	all year	003
Dieldrin	daily maximum	≤ 10 ug/L	all year	003
Endrin	daily maximum	≤ 5 ug/L	all year	003
Endrin	daily maximum	≤ 5 ug/L	all year	003
Toxaphene	daily maximum	≤ 10 ug/L	all year	003
Toxaphene	daily maximum	≤ 10 ug/L	all year	003
Heptachlor	daily maximum	≤ 10 ug/L	all year	003
Heptachlor	daily maximum	≤ 10 ug/L	all year	003
Heptachlor epoxide	daily maximum	≤ 10 ug/L	all year	003
Heptachlor epoxide	daily maximum	≤ 10 ug/L	all year	003
PCB-1221	daily maximum	≤ 0 ug/L	all year	003
PCB-1221	daily maximum	≤ 0 ug/L	all year	003
PCB-1232	daily maximum	≤ 0 ug/L	all year	003
PCB-1232	daily maximum	≤ 0 ug/L	all year	003
PCB-1242	daily maximum	≤ 0 ug/L	all year	003
PCB-1242	daily maximum	≤ 0 ug/L	all year	003
PCB-1248	daily maximum	≤ 0 ug/L	all year	003
PCB-1248	daily maximum	≤ 0 ug/L	all year	003
PCB-1254	daily maximum	≤ 0 ug/L	all year	003
PCB-1254	daily maximum	≤ 0 ug/L	all year	003
PCB-1260	daily maximum	≤ 0 ug/L	all year	003
PCB-1260	daily maximum	≤ 0 ug/L	all year	003
Hexachlorobenzene	daily maximum	≤ 100 ug/L	all year	003
Hexachlorobenzene	daily maximum	≤ 100 ug/L	all year	003
BTEX	daily maximum	≤ 250 ug/L	all year	003
BTEX	daily maximum	≤ 250 ug/L	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Chlordane	daily maximum	≤ 10 ug/L	all year	003
Chlordane	daily maximum	≤ 10 ug/L	all year	003
Mercury, total [as Hg]	daily maximum	≤ 10 ug/L	all year	003
Mercury, total [as Hg]	daily maximum	≤ 10 ug/L	all year	003
1,3-Dichloropropene	daily maximum	≤ 100 ug/L	all year	003
1,3-Dichloropropene	daily maximum	≤ 100 ug/L	all year	003
Chloroethane	daily maximum	≤ 100 ug/L	all year	003
Chloroethane	daily maximum	≤ 100 ug/L	all year	003

How strict are these limits?

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