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Spargero Analytical Laboratory Division <br /> Mobile laboratory Division <br /> Scientific Durston <br /> ' With Automation in Mind <br /> 8820 Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> ' BTEX Analysis Report <br /> Attention: Mr. Rich Hamilton Date Sampled: Jul. 8, 1993 <br /> Semco Date Received: Jul. 8, 1973 <br /> ' 431 W. Hatch Rd. Date Analyzed: Jul 8, 1993 <br /> Modesto, CA 95351 <br /> Project ID: 047431 Project: MUSD <br /> ' Client ID: WS-1 @ 17' LAB ID: STM93-07-008MS <br /> STM93-07-008MSD <br /> Matrix: So11 Dilution: <br /> Conc. Sample MS MSD MS % MSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recover <br /> Benzene 30 ppb ND 32 29 ug/kg 107% 97% 10% <br /> Toluene 30 ppb ND 28 26 ug/kg 93% 87% 7% <br /> Ethylbenzene 30 ppb ND 31 30 ug/kg 103% 100% 3% <br /> Xylenes 30 ppb ND 26 28 ug/kg 87% 93% 7% <br /> i <br /> Surrogate % Recovery of TFT = 98% <br /> ppb = parts per billion = ug/kg = micrograms per kilogram <br /> ppm= parts per million = ug/g = micrograms per gram <br /> NO = Not Detected. Compound(s) may be present at concentrations beton the detection limit. <br /> i --q-�7 _ <br /> Principal Chemist Date Reported <br /> ' SPARGER TECHNOLOGY ANALYTICAL LABORATORY, INC IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1614) <br /> 3050 Fite Circle Slate 112 • Sacramento M11?o°°m16X�,g827 1 (996) 362-8947 a FAX(996) 362-0947 <br />