Laserfiche WebLink
SEQUOIA ANALYTICAL - - - --- <br /> 819 Striker Avenue, Suite 8 - Sacramento, CA 95834 <br /> (916) 921-9600- FAX (916) 921-0100 <br /> Brown $Caldweil ' Client Project ID Arco 2133-93-5, Stockton N i <br /> P O Box 13449 Matrix Water <br /> Sacramento, CA 95613 <br /> Attention Steve Misner QC Sample Group 310-0530 Reported Oct 20, 1993 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl Organic <br /> Benzene Toluene benzene Xylenes Lead <br /> Method- EPA 8020 EPA 8020 EPA 8020 EPA 8020 LUFT <br /> Analyst: Chiaravallotl chiaravalioti Chiaravalloti Chiaravaltotl S Foster <br /> Concentration <br /> Spiked. 10 ug/L 10 ug/L 10 ug/L 30 ug/L 0 50 mg/L <br /> LCS Batch# LC$101893 LCS101893 LCS101893 LCS101893 LCS 102093 <br /> Date Prepared: 10/18/93 10/18/93 10/18/93 10/18/93 10/20/93 <br /> Date Analyzed. 10/18/93 10/18/93 10/18/93 10/18/93 10/20/93 <br /> Instrument 1.13 # HP2 HP2 HP2 HP2 SH-1000 <br /> LCS % <br /> Recovery: 91 90 92 93 91 <br /> Control Limits. 80-120 80-120 80-120 80-120 80-120 <br /> n u • ♦ , . , i . ,4 ♦s i n <br /> ANS/MSD <br /> Batch#: 3100573 3100573 3100573 3100573 3100530 <br /> Date Prepared, 10/18/93 10/18/93 10/18/93 10/18/93 10/20/93 <br /> Date Analyzed 10/18/93 10/18/93 10/18/93 10/18/93 10/20/93 <br /> Instrument I D.#: HP2 HP2 HP2 HP2 SH-1000 <br /> Matrix Spike <br /> %Recovery- 97 95 95 93 97 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery 110 100 100 103 98 <br /> Relative% <br /> Difference: 13 51 51 10 10 <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 /> validation of sample batch results Due to matrix effects,the OC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results <br /> /C(� L �ic�CC�G4 <br /> Linda C Schneider <br /> Project Manager 3100530 BRS <3> <br />