DEEP SOUTH CHEMICAL INC. — NPDES permit LA0127175: limits, due date and EPA's record

NPDES permit LA0127175 · Minor NON-POTW · effective, expires 2030-02-28 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among LA permits in EPA's filings — check your permit).

Limits in force (292)

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