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h'q KLEINFELDER 5.1 ANALYTICAL ME,TIIODS AND REPORTED RANGES The following is a brief summary of the analytical results found at or above laboratory reporting limits for the three soil and twit groundwater samples collected in the vicinity of Disposal Sites B and C: 5.1.1 Groundwater Results Groundwater samples CSV+I (6/I6/99 and 6/20/99) collected From the Disposal Site B revealed the following analytes and their reported concentration ranges at or above laboratory reporting limits: • Copper by IPPA Method 6010A 0.0190 111,,/] • Manganese by 1 PA Method 60 10A 0.0117 nig/l • Toluene by El'A Method 8200A 0.00265 inly/I • 1,2,4=frlmethylbenzene by I;l'A 5260A 0.00306 m,,/l • Total Xylenes by EPA Method 8260A 0.00090 111"/1 • Total Cyanide by EPA Met}tod 335.2 0.1)127 111,-,/[ 5.1.2 Soil S.unplin'u, RCSUIts Three confirmation soil samples Sucre collected in Disposal Areas 13 and C. Confirmation sample CS7 was collected at I)ispo*,il Site 13 and confirmation samples CSl and CS4 were collected at Site C. 'lite foll(ming analytes and reported concentration ranges were found at or above laboratory reporting limits lOr ilrese three soil samples: • Barium by CPA Melhod 0010A 18.4 to 44.0 1112/kg 1(s • Chromium EPA Method 6010A ,.0 Lo 4.54 n)--,/k,, • Copper by EPA MC1.1101.1 601 OA 2.64 to 3.53 mg/k�i, • Manganese by EPA Method 001 OA 72.0 to 112 n1-/kg • Nickel by LPA Method 6010:1 4.22 to 4.63 alglkg • Vanadium hV I PA N/lethod I)010A 13.6 In 16.5 mu- kg • Linc tw 1:PA N-Icthud ht)lesit 11.5 to 15.2 ing'kg Chlorobenwic by l:PA KlohoJ 8200A 0.196 mg/kg • Toluene b1- EPA IMcthOLl 5_260A 0.101 m-/k` • Sulfide by I;I'A Nlcthod 376.1 I0-5 niufko • Tin by IPPA Method 4.3 Lo 6.4 nig/l 2[1-.;97ti-Iit.11;h 21s197r 1'agc 1-t o1.20 9 1499.I�U111* idcr. lioc. Sepicmher 9. 1999