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r <br /> 1 <br /> a oc� kboratorles <br /> • GROUND ZERO ANALYSIS, INC <br /> ' 1714 Main Street <br /> Escalon,CA 95320 Date Sampled 02120/01 <br /> Date Received 02/21/01 <br /> ' Pro! ID 329 TPH•g I BTX&E Date Analyzed 02126/01 <br /> Site Knowles Roek <br /> Method 8015M 18020A <br /> Lab ID B02321 B02323 B02324 B02325 <br /> ' Sample ID KR CB5 74 GW KR CB5 88 GW KR CB5 112 GW KR CB5 140 GW <br /> Matrix Water Water Water Water <br /> Total Petroleum Hydrocarbons 52,000 170,000 260 <50 <br /> @ Gasoline <br /> Benzene 510 18,000 23 0 7 <br /> 'toluene 2,200 28,000 21 1 1 <br /> ' Xylenes 8,300 14,000 26 2 9 <br /> ' Ethyl Benzene 1,400 2,400 45 08 <br /> QA/QC <br /> Surrogate Spike Recovery 89% 93% 82% 102% <br /> 1 <br /> ' *water samples are reported in ug/L,soil and sludge samples in mglkg <br /> 1 <br /> Hiram GuetoO <br /> Lab Director <br /> DHS Certification No 2359 <br /> • <br /> ' 3037 Fifth t Ceres, 5307 • Phone 209 581-9280 • Fax 209 581-9282 <br /> S , C , CA9 ( ) ( ) <br />