Laserfiche WebLink
CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Dave, Atwater, CA 95301 Phone (209) 384-2930 <br /> Certificate #2079 Fax (209) 384-1507 <br /> Advanced GeoEnvironmental, Inc Client Project 10 Pacific Car Wash Method EPA 503018015M 8020 <br /> of Northern California Reference Number 1807 Instrument ID Var-GC1 <br /> 4005 North Wilson Way Matrix Soil Prepared 10-20-98 <br /> I Stockton, CA 95205 Analyst Clan Cone Analyzed 10-20-98 <br /> Attn Tim Cuellar Reported 10-27-98 <br /> QUALITY CONTROL DATA REPORT <br />' ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br />' Spike Concentration 2 00 200 200 200 200 4011 <br /> Units mglkg ug/kg ug/kg ug/kg ug/kg ug/kg <br />' LCS Batch # VG-0208 VB-0208 VB-0208 VB-0208 VB-0208 VB-0208 <br /> LCS % Recovery 106% 114% 106% 108% 103% 97 2% <br /> Surrogate Recovery 974% 931% 93 1% 931% 93 1% 93 1% <br /> Control Limits 70-130 % 70-130 % 70130 % 70-130 % 70-130 % 70 130 % <br /> MS/MSD Batch # VG-0208 VS-0208 VB-0208 VB-0208 VS-0208 VB-0208 <br /> MS % Recovery 824% 118% 949% 889% 988% 81 8% <br /> Surrogate Recovery 86 3% 880% 880% 880% 880% 88 C% <br /> MSD % Recovery 102% 107% 85 8% 81 1% 834% 75 1% <br /> Surrogate Recovery 87 4% 825% 82 5% 825% 825% 82 5% <br /> Relative % Difference 19 6% 8 59% 982% 7 95% 165% 790% <br /> Methanol Blank ND ND ND ND ND ND <br /> ISurrogate Recovery 946% 95 1% 95 1% 95 1% 95 1% 95 1% <br /> Please Note <br /> 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 results Due to matrix effects,the QC limits and recoveries for MS/MSD's are advisory only and are not used to accept or <br /> reject batch results <br /> ANALYST r APPROVED BY <br /> Clan J Cone J es C YJP%11,ps <br /> Environmental Lab Director <br />