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Discharge Screening Levels

Screening Values to Protect POTW Workers
from Toxic & Reactive Gases & Vapors (June 1992)
Pollutant Screening Level mg/l
Acrylonitrile 1.19
Aldrin 0.38
Benzene 0.14
Bis (2 - chloromethyl) ether 0.0005
Bromoform 0.24
Bromomethane 0.002
Carbon Disulfide 0.06
Carbon Tetrachloride 0.03
Chlordane 1.27
Chlorobenzene 2.31
Chloroethane 0.42
Chloroform 0.41
Chloromethane 0.07
1,2,-Dichlorobenzene 3.75
1,4,-Dichlorobenzene 3.55
Dichlorodifluoromethane 0.04
1,1-Dichloroethane 4.58
trans-1,2-Dichloroethylene 0.28
1,2-Dichloropropane 3.62
1,3-Dichloropropene 0.08
Dieldrin 13.0
Diethyl phthalate 107
4,6-Dinitro-o-cresol 10.78
Dinitrotoluene 7.21
Endrin 4.9
Ethyl Benzene 1.59
Pollutant Screening Level mg/l
Ethylene Dichloride 1.05
Formaldehyde 0.06
Heptachlor 0.003
Hexachloro-1,3-butadiene 0.0002
Hexachloroethane 0.093
Hexachlorocyclopentadiene 658
Methyl Chloride 0.06
Methyl Ethyl Ketone 249
Methylene Chloride 2.06
Naphthalene 2.65
Nitrobenzene 9.41
Pentachlorophenol 4.37
Phenol 1024
1,1,2,2-Tetrachloroethane 0.44
Tetrachloroethylene 0.53
Toluene 1.36
Toxaphene 0.003
1,2,4-Trichlorobenzene 0.39
1,1,1-Trichloroethane 1.55
1,1,2-Trichloroethane 1.15
Trichloroethylene 0.71
Trichlorofluoromethane 1.23
Vinyl Chloride 0.0003
Vinylidene Chloride 0.003
Aroclor 1242 0.01
Aroclor 1254 0.005

 


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