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' CASTLE ANALYTICAL LABORATORY <br />' Environmental Testing Services 2333 Shuttle Drive Atwater, CA 95301 Phone (209)384-2930 <br /> Fax (209)384-1507 <br /> Advanced GeoEnvironmental, Inc Client Protect ID Pacific Pride-West Lane Method EPA 5030/8260 <br />' of Northern California Reference Number 6212 Instrument ID HP 5972 IVIS <br /> 837 Shaw Road Matrix Soil Prepared 10-15-03 <br /> Stockton CA 95215 Analyst Scott Foster Analyzed 10-17-03 <br /> Attn Trm Cuellar Reported 10-30-03 <br /> QUALITY CONTROL DATA REPORT <br /> iSPIKE ID VSMS-0153A <br />' Reporting BLANK Spiking Control %R <br /> Limit Result Level Spike Limits <br /> m IK m 1K m /K %R <br /> COMPOUNDS <br />' t-But l Alcohol(t-BA) 080 NO 300 101% 70-130 <br /> Methyl t-but I other (MTBE) 0 010 ND 0 100 122% 70-130 <br /> Dnso ropyl ether(D1PE) 0 010 ND 0 100 104% 70-130 <br /> Eth i t-But I ether(ETRE) 0 010 ND 0 100 104% 70-130 <br /> t-Am I methyl ether(TAME) 0 010 ND 0 100 944% 70-130 <br /> 1 2-Dichloroethane 1 2-DCA) 0 010 ND 0 100 125% 70-130 <br /> Ethylene dibromide(EDD) 0 010 ND 0 100 932% 70-130 <br /> Surrogates <br /> Ile1 2-Dichloroethane-d4 0 010 104% 0 400 108% 70-130 <br /> Toluene-d80 010 95 0% 0 400 987% 70-130 <br /> Soiking MATRIX MATRIX %R %RFD <br /> Level SPIKE SPIKE DUP Limits <br /> mg/K %R %R <br /> COMPOUNDS <br /> t Butyl Aicohol(t-BA) 300 952% 981% 70-130 303% <br /> Methyl t-but I ether (MTBE) 0 100 952% 107% 70-130 106% <br /> Dnsoprop i ether(UPE) 0 100 852% 904% 70-130 592% <br /> Ethyl t-But I ether(ETBE) 0 100 908% 964% 70-130 598% <br />' t-Am I methyl ether TAME 0 100 916% 960% 70-130 448% <br /> 1 2-Dichloroethane(1 2-DCA) 0 100 984% 106% 70-130 706% <br /> Ethylene dibromide(EDB) 0 100 776% 908% 70-130 15 7% <br /> Surrogate <br /> 1 2-Dichloroethane-d4 0 400 862% 908% 70-130 520% <br /> Toluene-d8 0 400 75 9% 856% 70-130 120% <br /> I The LCS (Laboratory Check 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 resu€ts Due to matrix effects, the QC limits and recoveries for MS/MSD's are advisory only and are not used to accept or <br /> refect batch results <br /> I <br /> i <br /> ANALYST APPROVED BY <br /> Clan J Cone Jam Phillips <br /> ILa ratory Director <br />