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Sparger 0 Analytical Laboratory Division <br /> to Division <br /> Mobile Laboratory <br /> Technok)g-yh. ScientfAc Division <br /> With Automation in Mind <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> ' Laboratory Control Spike Duplicate (LCSD) BT'EX Analysis. Report <br /> Attention Mr John Juhrend Date Sampled Feb 5, 1996 <br /> ' Geocon Environmental Date Received Feb 7, 1996 <br /> 3235 Sunrise Blvd , Ste 6 Date Analyzed Feb 9, 1996 <br /> Rancho Cordova, CA 95742 Invoice# 6254 <br /> 'Protect ID S8100-06-11 B Protect Name Stockton Yard <br /> 'Client ID LCS/LCSD LAB ID 9602-009 LCS <br /> 9602-009 LCSD <br /> Matrix Water Dilution <br /> 1 Conc Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 27 25 ug/L 90% 83% 8% <br /> ' Toluene 30 ppb ND 27 26 ug/L 90% 87% 4% <br /> Ethylbenzene 30 ppb ND 28 26 ug/L 93% 87% 7% <br />' Xylenes 30 ppb ND 28 26 ug/L 93% 87% 7% <br /> Surrogate % Recovery of Trifluorotoluene = 77% LCS 76% LCSD <br /> ppb=parts per billion=ug1L=micrograms per Liter <br />' ppm-parts per million=uglmL=microgrdms per milliliter <br /> ND=Not Detected Compounds)maybe present at concentrations below the detection IlmA <br /> Feb 20, 1996 <br /> R i_ James,Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> t DEPARTMENT OF HEALTH SERVICES AS A HAV RDOUS WASTE TESTING LABORATORY <br /> (Certification No 1614) <br /> 1 <br /> 1�nrn Sri(-rnrn�ntn C'olifornin 95827 9 (916) 362-8947 ` FAX (916) 362-0947 <br />