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,Jan 22 01 12: 31P DELTECH GEOTECHNICHL (209) 847-7744 p. 3 <br /> Sherwood <br /> DER AVENUE <br /> 8071 NORTH LANDER PO 90X937 <br />' C O R P 0 R A T 1 O N <br /> HILMAR.CALIFORNIA 95324 <br /> 01/05/01 QUALITY CONTROL REPORT DHS Cert. #1400 <br /> Total Petroleum Hydrooaxbons(TPW AnalYsa.s <br /> Client,: DEL-TECH - Date R0002ved- 12/29/00 <br />' 10624 OLIVE AVENUE Date Started 12/29/00 <br /> OARDALE, CA 95361 Date Complete 01/04/01 <br /> ATTN DON LIGHT <br /> 1 Lab Report 0 H0122903 Lab sample 9:Pm0120984-PE0120986 <br /> Linearity Check <br /> BTEX Benzene 0.9994 TPH Gasoline 0.9999 <br />' Toluene 0.9995 TPH D3.esel N/A <br /> Ethyl Benz 0 9992 Motor Oil N/A <br /> Xylenes 0.9991 TRPH (418.1) N/A <br /> MTBE 0_9996 <br /> gtd % PepeatabLlity�__ MTBE Benzene Toluene Eth Benz Xylenes <br />' BTEX 101 102 102 105 104 <br /> TPH Gasoline 99 TPH Diesel N/A <br /> TRPH (41.8 1) N/A Motor 03-1 N/A <br /> x0trax Spike Racoverias MS MSD RPD <br /> MTBE 90 85 5 <br /> BTEX Benzene 112 97 14 <br /> Toluene 102 103 1 <br /> ' Ethyl Benz 3p1ke___jnsignificant relative to sample concentration <br /> Xylenes spike -insign-ificant relative to sample concentration <br /> TPH Gasoline 79 74 7 <br /> TPH Diesel N/A N/A N/A <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> I BTEX <2 ug/L <.3 ug/L < 3 ug/L < 3 ug/L <.3 ug/L <br /> TPH Gasoline <50 ug/L lhesel/MO N/A TRPH(418 1) N/A <br /> ' <br /> IL&b Control sample sk Recovery EPA Performance Acceptance Range <br /> BTEX Benzene 95 73.1 124 <br /> Toluene 99 73.6 - 120 <br /> ' Ethyl Benz 88 72.5 - 118 <br /> xylenes 100 72.7 1.21 <br /> TPH Gasoline 99 82.4 -- 117 <br /> I TPH M3 esel N/A 76.5 - 136 <br /> TRPH (418 1) N/A N/A <br /> ' Nary B3.dedenweg, Lab Q:Lr,�et r <br /> OFFICE (209)667-5258 FAX (209)667-2581 <br />