PSES and PSNS for Priority Pollutants

[Micrograms per liter (µg/l)] Pollutant Daily maximum shall not exceed Monthly maximum shall not exceed 1,1-Dichloroethylene 60 22 1,1,1-Trichloroethane 59 22 1,2-trans-Dichloroethylene 66 25 1,2-Dichlorobenzene 794 196 1,2-Dichloropropane 794 196 1,2-Dichloroethane 574 180 1,3-Dichloropropene 794 196 1,4-Dichlorobenzene 380 142 Benzene 134 57 Bromodichloromethane 380 142 Bromomethane 380 142 Chlorobenzene 380 142 Chloromethane 295 110 Cyanide (Total) 640 220 Dibromochloromethane 794 196 Dichloromethane 170 36 Ethylbenzene 380 142 Lead (Total) 690 320 Naphthalene 47 19 Tetrachloroethylene 164 52 Tetrachloromethane 380 142 Toluene 74 28 Tribromomethane 794 196 Trichloromethane 325 111 [58 FR 50699, Sept. 28, 1993]