Laserfiche WebLink
CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive Atwater, CA 95301 Phone (209)384-2930 <br /> ' Certificate#2480 Fax (209)384-1507 <br /> Advanced GeoEnvironmental Inc Client Project ID Rainwater Car Wash Method EPA 5030/8015M 8020 <br /> t of Northern California Reference Number 4727 Instrument ID Var-GC1 <br /> 837 Shaw Road Sample Description Water Extracted 05-30-02 <br /> Stockton CA 95215 Analyst Jim Phillips Analyzed 05-30-02 <br /> Attn Tim Cuellar Reported 06-07-02 <br /> A <br /> ' QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br /> Spike Concentration 110 2111 1 32 7 94 1 84 9 22 <br /> ' Units ug/L ug/L ug/L ug/L ug/L ug/L <br /> LCS. Batch# VW-5302 VW-5302 VW-5302 VW-5302 VW-5302 VW-5302 <br /> ' LCS %Recovery 105% 890% 855% 833% 850% 848% <br /> Surrogate Recovery 983% 101% 101% 101% 101% 101% <br /> Control Limits 70-130% 70-130% 70-130% 70-130% 70-130% 70-130% <br /> ' MS/MSD Batch# VW-5302 VW-5302 VW-5302 VW-5302 VW-5302 VW-5302 <br /> Spike Concentration 110 2 10 132 7 94 1 84 922 <br /> ' MS%Recovery 897% 990% 852% 808% 803% 800% <br /> Surrogate Recovery 917% 957% 957% 957% 957% 957% <br /> MSD%Recovery 901% 932% 870% 766% 762% 752% <br /> ' Surrogate Recovery 908% 933% 933% 933% 933% 933% <br /> Relative%Difference 0456% 602% 220% 528% 518% 599% <br /> ' Methanol Blank ND ND ND ND ND ND <br /> Surrogate Recovery 914% 106% 106% 106% 106% 106% <br /> ' The LCS(Laboratory Check Sample) is a control sample of known interferent free matrix that is fortified with representative analytes <br /> ( rY P ) P pand <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 /> refect batch results <br /> 1 �/F <br /> ANALYST PPROVED BY <br /> ' Clair J Cone James Phillips <br /> i I I Lab tory Director <br /> i <br /> I <br /> I� <br /> I I V I I <br /> V <br />