Appendix C Salton Sea Table C_10 TAC Imperial Riverside Acetaldehyde 101 36 Benzene 152 74 "1,3-Butadiene" 38 17 Carbon Tetrachloride 0 0 Chromium (Hexavalent) 0.02 < .01 para-DiChlorobenzene 9 18 Formaldehyde 290 107 Methylene Chloride 20 65 Perchloroethylene 27 43 Diesel PM 269 164