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sequoia <br />680 C.hcsapeaxe tJnve <br />Kedwood City, �-^ y4u0l <br />�40i 364-9600 <br />rAA (415) 364.9233 <br />Aft <br />1900 Bates Avenue, Suite L <br />Concord, CA 94520 <br />(510) 686.9600 <br />(916) <br />FAX (510) 686-9689 <br />al Cal <br />8t9 Striker Avenue. Suite 8 <br />Sacramento, CA 95 <br />92t-9600 <br />FAX (916) 921-0100 <br />RESNA <br />1710 Main Street <br />Escalon, CA 95320 <br />Attention: Bill Channell <br />Client Project ID: 15101.01, Austin Road <br />Matra: Liquid <br />OC Sample Group: 9408514-01-2 Reported: Aug 22, 1994:,:.: <br />Ally—A 4 111 IM4901r• ••- <br />ANALYTE <br />Beryllium <br />Cadmium <br />Chromium Nickel <br />Mercury <br />Method: <br />EPA 200.7 <br />EPA 200.7 <br />EPA 200.7 EPA 200.7 <br />EPA 245.1 <br />Analyst: <br />C. Medefesser <br />C. Medefesser <br />C. Medefesser C. Medefesser' <br />M. Rocklein <br />MS/MSD <br />BLK081294 <br />BLK081294 <br />BLK081294 <br />BLK081294 <br />CCV081794 <br />Batch#: <br />940866701 <br />940856701 <br />940866701 <br />940866701 <br />940851401 <br />Date Prepared: <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/18/94 <br />Date Analyzed: <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/18/94 <br />Instrument I.D.#: <br />MTJA-4 <br />MTJA-4 <br />MTJA4 <br />MTJA-4 <br />MV -1 <br />Conc. Spiked: <br />1.0 mg/L <br />1.0 mg/L <br />1.0 mg/L <br />1.0 mg/L <br />0.0020 mg/L <br />Matrix Spike <br />% Recovery: <br />93 <br />92 <br />92 <br />94 <br />95 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />91 <br />90 <br />90 <br />91 <br />96 <br />Relative % <br />Difference: <br />2.2 <br />22 <br />22 <br />3.2 <br />1.0 <br />......... ....::..................:.:.:.....:. <br />.......... :fcc+.$:�:�:;=;%��±k�`::::j.:%:.':%':.:'<:'i:� ��: <br />....Y:..::.....::.......:»:.�:..:::.�,.. ..VccFwcstocw•••: ••.•.�-: �.v aw ... .. .. ..•. <:.x:'t "": .sa;,acs:•.. •rt :a,;::c::a: <br />LCS Batch: <br />BLK081294 <br />BLK081294 <br />BLK081294 <br />BLK081294 <br />CCV081794 <br />Date Prepared: <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/17/94 <br />Date Analyzed: <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/12/94 <br />8/18/94 <br />instrument l.D.#: <br />MTJA-4 <br />MTJA4 <br />MTJA4 <br />MTJA4 <br />MV -1 <br />LCS % <br />Recovery: <br />97 <br />98 <br />99 <br />98 <br />94 <br />Recovery <br />Control Limits: 75-125 75.125 75-125 75-125 75-125 <br />SEQUOIA ANALYTICAL <br />om -T-dc +— <br />Vickie Tague Clark <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 />1�• <br />9408514.WAT <2> <br />