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Sequoia 404 N ,CA Lane <br /> Walnut Creek,CA 94598 <br /> �111 - (925)988-96W <br /> Analytical FAX(925)988-9673 <br /> ti <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#2859 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Dec-9915 07 <br /> Anions by EPA Method 300.0 - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> An�?� Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 9K27003• Prepared 24-Nov-99 Usmg General Preparation <br /> Blank(9K27003-BLK1) <br /> Nitrate as NO3 ND 0 10 mg/1 <br /> Sulfate as SO4 ND 0 10 " <br /> LCS(9K27003-BSI) <br /> Nitrate as NO3 107 0 10 mg/1 100 107 80-120 <br /> Sulfate as SO4 988 0 10 100 988 80-I20 <br /> Matrix Spike(9K27003-MSI) Source W911614-03 <br /> Nitrate as NO3 I t 2 020 mg/1 1130 ND 112 75-125 <br /> Suttate as SO4 12 5 020 100 28 970 75-125 <br /> Matrix Spike Dup(9K27003-MSD1) Source W911614-03 <br /> Nitrate as NO3 11 1 020 mgll 100 ND 111 75-125 0 897 20 <br /> We as SO4 124 020 100 28 960 75-125 0 803 20 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed i n accordance with the chain of <br /> custody document This analytical report must be reproduced in}Gs entirety <br /> A CdtO hector <br /> Page 16 of 17 <br />