Hazardous Substances List from 1989 State Dept of Health Internal Memo TOTAL PETROLEUM HYDROCARBONS IN SOIL on Base: Concentrations to 7250 ppm HEAVY METALS (in landfill 26 above TTLC): Antimony to 530 ppm Barium to 1600 ppm Copper to 2600 ppm Lead to 34,000 ppm SEMI-VOLATILE ORGANIC ANALYTES (17 with significant levels in landfill 26): Bis (ethylhexyl) phthalate to 3 ppm Anthracene to 2.9 ppm Benzo (a) antrhracene to 7.8 ppm Benzo (a) pyrene to 13 ppm Benzo (b) flouranthene to 5.7 ppm Benzo (g,h,i) perylene to 7.2 ppm Benzo (k) flouranthene to 21 ppm Chrysene to 11 ppm Dichlorobenzene to 0.6 ppm Diethyl phthalate to 1.6 ppm Di-n-octyl phthalate to 3.5 ppm Flourene to 3.2 ppm Flouranthene to 15 ppm Indeno (1,2,3-c-d)-pyrene to 6.5 ppm Napthalene to 33 ppm Phenanthrene to 7.7 ppm Pyrene to 7.8 ppm VOLATILE ORGANIC COMPOUNDS (10 in soils at landfill 26): 1,1,1-trichloroethean (TCA) to 0.05 ppm Chlorobenzene to 0.7 ppm Ethylbenzene to 0.41 ppm Benzene to 0.14 ppm Xylenes to 0.96 ppm Toluene to 0.046 ppm 1,4 <2>-dichloroethane to 0.6 ppm Trichloroethene (TCE) to 0.05 ppm Dichloromethane to 0.042 ppm Methylene chloride to 8 ppm Page two FOUR ORGANOCHLORINE PESTICIDES (or degradation products in landfill 26 above TTLC): 4,4'-DDT to 190 ppm 4,4'-DDE to 36 ppm 4,4'-DDD to 160 ppm Endrin to 49 ppm POLYCHLORINATED BIPHENYLS (PCB'S) (in base transformers): Aroclor 1254 to 4.8 ppm Aroclor 1248 to 0.66 ppm Aroclor 1260 to 0.17 ppm Aroclor 0.25 ppm RADIOLOGICAL DISPOSAL SITE Suspected buried metal cylinders containing low-level radiological waste.