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• •••• �•, 19J003i004 <br /> Sup Precision �lr�c�tKieal, Inc. <br /> SP:i/ 'nold Drivv. Suit[• 1 14 "srtin47, C:Alrornia 44»3 x'_,10) 779-1511 /fax (1110) '!9-I";!6 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY No. : 87103 DATE RECEIVED: 11/09/92 ., <br /> CLIENT: Kleinfelder DATE RLPORTED: 11/16/92 <br /> CLIENT 105 NO. : 24-214400-000 DATE SAMPLED! 11/06/92 <br /> ANALYSIS FOR BARIUM, COBALT, COPPER; NICKEL ARSENIC & MERCURY <br /> by EPA SW-846 Methods 6010, 7470, 7060 <br /> LAB Concentration (mg/kg) <br /> Sample ID Barium Cobalt Kopper Nickel Arsenic Mercury <br /> ---- --------- ------ ------ ------ -------- ---- <br /> 1 63561 160 NDC10 40 30 2 ND<0 . 1 <br /> 2 63562 150 12 40 30 4 NDC0. 1 <br /> mg/kg parts per million (ppm) <br /> Method Detection Limit for Barium in Soil : 5 mg/kg <br /> Method Detection Limit for Cobalt in Soil : 14 mg/kg <br /> Method petection Limit for Capper in Soil ; 10 mg/k9 <br /> Method Detection Limit for Nickel in Sail : 10 mg/kg <br /> Method Detection Limit for Arsenic in Soil: 1 mg/kg <br /> Method Detection Limit for Mercury in Soil: 0. 1 sng/kq <br /> it <br /> QAQC Summary: MS/MSD Average Recovery 102% <br /> Duplicate RPD 4% <br /> Richard S , Ph.D. <br /> Laboratory Mana r <br /> i <br /> cc-riirir'd Iat7ni;rforws <br />