Laserfiche WebLink
Sequoia <br />680 Che eake Drive Redwood City, CA 94063 <br />650) 364-9600 <br />FAX (650) 364-9233 <br />Method: EPA 8020 <br />404 N. Wiget Lane Walnut Creek, CA 94598 <br />(925) 988-9600 <br />FAX(925)988-9673 <br />3/12/99 <br />819 Striker Avenue, Suite 8 Sacramento, CA 95834 <br />(916) 921-9600 <br />FAX (916) 921-0100 <br />Analytical <br />1455 McDowell Blvd. North. Ste. D Petaluma. CA 94954 <br />(707) 792-1865 <br />FAX (707) 792-0342 <br />: <br />Gettler-Ryan -Dublin <br />Client Projec4 I® Chevron #9-3232, Stockton <br />Conc. Spiked: <br />0.50 mg/kg <br />6747 Sierra Court, Suite J <br />Matrix: Solid <br />2.4 mg/kg <br />15 mg/kg <br />Dublin, CA 94568 <br />Attention: Greg Gurss <br />OC Sample Group: 9031116-129 <br />Reported: Mar 16, 19! <br />ANALYTE Benzene <br />Toluene Ethyl Xylenes Diesel <br />3/12/99 <br />Benzene <br />Method: EPA 8020 <br />EPA 8020 EPA 8020 EPA 8020 EPA 8015 M. <br />Analyst: C. Westwater <br />C. Westwater C. Westwater C. Westwater K. Grubb <br />MS/MSD <br />Batch#: 9030972 9030972 9030972 9030972 9031102 <br />Date Prepared: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />Date Analyzed: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />Instrument I.D.#: <br />HP -5 <br />HP -5 <br />HP -5 <br />HP -5 <br />HP -3B <br />Conc. Spiked: <br />0.50 mg/kg <br />0.50 mg/kg <br />0.50 mg/kg <br />2.4 mg/kg <br />15 mg/kg <br />Matrix Spike <br />% Recovery: <br />109 <br />111 <br />113 <br />117 <br />80 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />109 <br />111 <br />111 <br />117 <br />73 <br />Relative % <br />Difference: <br />0.0 <br />0.0 <br />1.1 <br />0.0 <br />8.7 <br />LCS Batch#: <br />5LCS031299 <br />5LCS031299 <br />5LCS031299 <br />5LCS031299 <br />LCS031299 <br />Date Prepared: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />Date Analyzed: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />Instrument I.D.#: <br />HP -5 <br />HP -5 <br />HP -5 <br />HP -5 <br />HP -3A <br />LCS % <br />Recovery: <br />111 <br />113 <br />110 <br />113 <br />87 <br />Recovery <br />Control Limits: 50-150 50-150 50-150 50-150 60-140 <br />SEQUOIA ANALYTICAL, #1271 <br />2nne Fegley <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 matrix spike is an aliquot of sample <br />fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br />the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br />interference, the LCS recovery is to be used to validate the batch. <br />9031116.GET <30> <br />