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Sequoia U80 Chesapeake Drive Redwood City,CA 94063415) 364-9604 ` FAX(415) 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 - FAX(5 10)98 8-967 3 <br /> X117 Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0300 <br /> �e ierit:.:...............................u...........v.. ... -. ............x......... .....:..:.....................- ........::.:..:.:....-................................................:..- <br /> pg <br /> rad P'q...ct lb: Slid.... <br /> F' <br /> 1017 28th St. Matrix: Soil <br /> Sacramento, CA 95816 <br /> Attention- Vic Cherven QC Sample Group 5120116-18, 21 Reported: Dec 18, 1995< <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Trichloro- Chloro- <br /> 1,1-DCA ethene benzene Diesel Oil&Grease <br /> Method: EPA 8010 EPA 8010 . EPA 8010 EPA 8015"M EPA 418.1 <br /> Analyst: K. Pocan K.Pocan K.Pocan C.Lee S.Phillips <br /> Concentration <br /> Sp-:ked: 200 pg/kg 200pg/kg 200 Ng/kg 7.5 mg/kg 100 mg/kg <br /> LCS Batch#: LCS120895 LCS120895 LCS120895 LCS121495 LCS121295 <br /> Date Prepared: 12/8/95 12/8/95 -12/8/95 12/14/95 12/12/95 <br /> Date Analyzed: 12/8/95 12/8/95 12/8/95 12/14/95 12/12/95 <br /> Instrument I.D.#: GC-5 GC-5 GC-5 GCHP-3B IR-1 <br /> LCS % <br /> Recovery: 91 105 . 110 103 96 <br /> Control Limits: 70-130 70-130 70-130 60-130 80-120 <br /> .................................................:.............................:................................................................................................ }€ 'a `< <br /> MS/MSD <br /> Batch #: 5120116 5120116 5120116 BS121495 5120267 <br /> Date Prepared: 12/8/95 12/8/95 12/8/95 12/14/95 12/7/95 <br /> Date Analyzed: 12/8/95 12/8/95 12/8/95 12/14/95 12/7/95 <br /> Instrument I.D.#: GC-5 GC-5 . , GC-5 GCHP-36 I11-1 <br /> Matrix Spike <br /> % Recovery: 92 103 1.06 103 77 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 82 96 85 103 77 <br /> Relative% <br /> Difference: 11 7.0 22 0.0 0.0 <br /> Please Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> L� validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> 1Q 7Yf. 11F and are not used to accept or reject batch results. <br /> Janet arlan <br /> Project Manager <br /> 5120116.UPS <9> <br />