Laserfiche WebLink
CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services P.O. Box 1360, Winton, CA. 95388 Phone: (209) 384-2930 <br /> Certificate #2079 Fax: (209) 384-1507 <br /> d <br /> Advanced GeoEnvironmental, Inc. Client Project ID: 95-0197 Method: EPA 503018015M,8020 <br /> of Northern California Reference Number: 658 Instrument ID: Var-GC1 <br /> 1803 West March Lane, Suite A Matrix:Water Prepared: 1-25-96 <br /> Stockton, CA 95207 Analyst: Jim Phillips Analyzed: 1-25-96 <br /> Attn: Tim Cuellar Reported: 2-1-96 <br /> 1 <br /> QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Gasoline Benzene Toluene Ethyl Benzene Total Xylenes <br /> Spike Concentration: 100 1.00 1.00 1.00 2.00 <br /> Units: ug/L ug/L ug/L ug/L ug/L <br /> LCS Batch #: VG-1256W VB-1256W VB-1256W VB-1256W VB-1256W <br /> LCS % Recovery: 98.4% 102% 109% 105% 108% <br /> Surrogate Recovery: 91.3% 89.0% 89.0% 89.0% 89.0% <br /> Control Limits: 70-130 % 70-130 % 70-130 % 70-130 % 70-130 % <br /> MS/MSD Batch #: VG-1256W VB-1256W VB-1256W VB-1256W VB-1256W <br /> 1 MS % Recovery: 101% 103% 110% 107% 109% <br /> Surrogate Recovery: 95.5% 96.5% 96.5% 96.5% 96.50/6 <br /> MSD % Recovery: 101% 99.8% 107% 103% 106% <br /> ' Surrogate Recovery: 94.9% 98.5% 98.5% 98.5% 98.5% <br /> Relative % Difference: 0.274% 3.15% 2.57% 3.20% 2.59% <br /> ' Methanol Blank : ND ND ND NO NO <br /> Surrogate Recovery: 94.1% 93.2% 93.2% 93.2% 93.2% <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 /> r , <br /> ANALYST: APPROVED BY: <br /> Clari J. Cone m s C. Phillips <br /> Environmental Lab Director <br />