Laserfiche WebLink
Sequoia •680 Chesapeake Drive Redwood City, CA 9406(415) 364-9600 FAX (415) 364-9233 <br />404 N. Wiget Lane Walnut Creek, CA 94598 (510) 988-9600 FAX (510) 988-9673 <br />Analytical 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916) 921-0100 <br />` :;>`>::> <br />3Clie1cUoa#5886DeIta Environmental Cons It no n................................................................................................................. <br />3164 Gold Camp Dr., Suite 200 Matrix: Soil <br />Rancho Cordova, CA 95670 <br />Attention: Eric Holm QC Sample Group 5080010-11 Reported: Aug 8, 1995 <br />QUALITY CONTROL DATA REPORT <br />ANALYTE Ethyl - <br />Benzene Toluene Benzene Xylenes Diesel <br />Method: <br />EPA 8020 <br />EPA 8020 <br />EPA 8020 <br />EPA 8020 <br />EPA 8015M <br />Analyst: <br />C. Chapman <br />C. Chapman <br />C. Chapman <br />C. Chapman <br />C. Lee <br />Concentration <br />Spiked: <br />0.20 mg/kg <br />0.20 mg/kg <br />0.20 mg/kg <br />0.60 mg/kg <br />7.5 mg/kg <br />LCS Batch#: <br />LCS080395 <br />LCS080395 <br />LCS080395 <br />LCS080395 <br />LCS080395 <br />Date Prepared: <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />Date Analyzed: <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/7/95 <br />Instrument I.D.#: <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />GCHP-3B <br />LCS % <br />Recovery: <br />94 <br />94 <br />95 <br />95 <br />76 <br />Control Limits: <br />75-125 <br />75-125 <br />75-125 <br />75-125 <br />60-130 <br />MS/MSD <br />Batch #: <br />5071417 <br />5071417 <br />5071417 <br />5071417 <br />5071517 <br />Date Prepared: <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />Date Analyzed: <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/3/95 <br />8/10/95 <br />Instrument I.D.#: <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />GCHP-1 <br />GCHP-3B <br />Matrix Spike <br />% Recovery: <br />92 <br />93 <br />94 <br />94 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />95 <br />96 <br />95 <br />96 <br />Relative % <br />Difference: <br />3.2 <br />3.2 <br />1.0 <br />2.1 <br />SEQUOIA ANALYTICAL <br />Linda C. Schneider <br />Project Manager <br />Please Note: <br />The LCS is a control sample of known, interferent free matrix that is analyzed using the same reagents, <br />preparation and analytical methods employed for the samples. The LCS % recovery data is used for <br />validation of sample batch results. Due to matrix effects, the QC limits for MS/MSD's are advisory only <br />and are not used to accept or reject batch results. *Matrix interference. <br />5080010A.DLT <3> <br />