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1 <br />' CASTLE ANALYTICAL LABORATORY <br /> Environmentai Testing Services 2333 Shuttle Drive,Atwater CA 95301 Phone (209)384-2930 <br />' Fax (209)384-1507 <br /> Advanced GecEnvironmental Inc Client Project ID Pacific Pride-West Lane Method EPA 5030/8260 <br />' of Northern Cahforn:a Reference Number 6211 Instrument ID HP 5972 MS <br /> 837 Shaw Road Matrix Soil Prepared 10-15-03 <br /> Stockton CA 95215 Analyst Scott Foster Analyzed 10-17-03 <br /> Attn Tim Cuellar Reported 10-30-03 <br /> QUALITY CONTROL DATA REPORT <br />' SPIKE ID VSMS-0153B <br /> Reporting BLANK Spiking Control %R <br />' Limit Result Level Spike Limits <br /> mg/Kg mg/Kg m /K %R <br /> COMPOUNDS <br /> t-But l Alcohol(t-BA) 080 ND <br /> 300 943% 70-130 <br />' Meth f t-but I ether (MTBE) 0 010 ND 0 100 114% 70-130 <br /> Drsoprop l ether(DIPS) 0 010 ND 0 100 932% 70-130 <br /> Ethyl t-Bu I ether(ETBE) 0 010 ND 0 100 106% 70-130 <br /> t-Am I methyl ether(TAME) 0 010 ND 0 100 107% 70-130 <br />' 1 2-Dichloroethane 1 2-DCA) 0 010 ND 0 100 134% 70-130 <br /> Ethylene dibromide(EDB 0 010 ND 0 100 92 4% 70-130 <br /> Surrogates <br /> 1 2-Dichforoethane-d4 0 010 945% 0 400 913% 70-130 <br /> lieToluene-d8 0 010 838% 1 0 400 1 87 0% 1 70-130 <br /> Spiking MATRIX MATRIX %R %RPD <br /> Level SPIKE SPIKE DUP Limits <br /> mg/Kg %R %R <br /> COMPOUNDS <br />' t-But 1 Alcohol(t-BA) 300 968% 949% 70-130 1 95% <br /> Methyl t-butyl ether (MTBE) 0 100 103% 996% 70-130 334% <br /> 2Lsopropyl ether(DIPE) 010D 900% 652% 70-130 548% <br /> Ethyl t-But l ether(ETBE) 0 100 984% 948% 70-130 373% <br /> t-Am I methyl ether(TAME) 0 100 952% 968% 70-130 156% <br /> 1 2-Dichloroethane(1 2-DCA) 0 100 109% 112% 70-130 244% <br /> Ethylene dibromide(EDB) 0 100 788% 864% 70-130 920% <br /> Surrogate <br /> 1 2-Dichloroethane-d4 0 400 103% 894% 70-130 14 30 <br /> Toluene-d8 0 400 729% 848% 70-130 151 <br /> The LCS(Laboratory Chock Sample)is a control sample of known, interferent free matrix that is fortified with representative analytes and <br /> analyzed using the same reagents, preparation and analytical methods employed for the samples The LCS%recovery is used for validation <br /> of sample batch results Due to matrix effects, the OC limits and recoveries for MS/MSD's are advisory only and are not used to accept or <br /> reject batch results <br /> 4 <br /> ANALYST (k�� APPROVED BY <br /> Clary J Con James Philips <br /> I Labor 'O <br /> ry Director <br />