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r <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive Redwood City, CA 94083 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> RESNA V n}; n. 4�r Gient Project ID�}Y 54006~05, Coca Cola Stockton: <br /> 1710 Main Street Matrix Liquid <br /> Escalon, CA 95320 <br /> ' Attention Jeanne Homsey v pC Sample Group 31-144701-2 k ri Reported Aub 13, 1993 <br /> ' QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> jMethod: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst. M Nipp M Nipp M Nipp M Nipp <br /> Cone Spiked: 10 10 10 30 <br /> Units: erg/L ug/L pg/L Pg/L <br /> LCS Batch#: BLK081193 BLK081193 BLKD81193 BLK081193 <br /> ' Date Prepared: N/A N/A N/A N/A <br /> Date Analyzed. 8/11/93 8/11/93 8/11/93 8/11/93 <br /> Instrument I D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> i LCS % <br /> Recovery: 100 100 100 100 <br /> Control Limits: 80-120 80-120 80-120 80-120 <br /> .,4♦ri4 w' ^{Jrr^^vr}ten{ 3^^'{S-Y ��wr\ ^S yr ivii}*�rev vt�Y{+nr {vvp {{rte r �r }` J <br /> n}�7.. 0-.n- ♦ v4xr {^ \i} ' J + S } v`p vr7n?A{Ya}.nh.S{!r{yam <br /> `.�..rvx`n} W.`nv .n•�rv`r x}v. ry a.v,v r}`wS . ... x .. x w,.ry v,. .. .. .. vvr �v ti by vnn- w m x r. xv x ..`rn- r 4vr ryr vrvvvvn}JY'.n� <br /> ' MS/MSD <br /> Batch#. 31-140904 31-140904 31.140904 3H40904 <br /> ' Date Prepared: N/A N/A N/A N/A <br /> Date Analyzed, 8/11/93 8/11/93 8/11/93 8/11/93 <br /> Instrument I D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> ' Matrix Spike <br /> %Recovery: 83 83 83 83 <br /> I Matrix Spike <br /> Duplicate% <br /> Recovery: 99 100 99 100 <br /> Relative% <br /> Difference: 18 19 1s 19 <br /> SEQUOIA ANALYTICAL 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 /> Vickie Tague and are not used to accept or refect batch results <br /> Project Manager 31-144701 WAT <2> <br /> 1 <br />