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B C LABORATORIES <br /> LABORATORIES QUALITY CONTROL REPORT <br /> (Precision & Accuracy) <br /> FORWARD, INC. Date of Report: 05/20/98 <br /> P. 0. BOX 6336 Sample Matrix: Water <br /> STOCKTON, CA 95206 <br /> CARRIE FISHER <br /> Samples Affected: 98-04298 - 1 <br /> 1 MS MSD ( Precision ( Accuracy <br /> Sade Sample MS MSD Spike Spike ISamplelSpike I Control I MS I MSD I Control I <br /> stituents IQC Sample ID I Result IDupticate I Result I Result I Level I Level junits IR.P.D.IR.P.D.1 Limits 1% Rec 1% Rec I Limits I <br /> (Nitrate as N 14290-1 f 14.32 1 14.40 i 19.04 19.12 i 5.000 I 5.000 IMS/L I 1. I 0. ( 101 94. 196. I 83 - 114( <br /> 1pH 14289-3 1 7.45 I 7.47 I I I IpH Units 1 0 1 1 t.1 PH UNI I I I <br /> IElectricat Conductivity I I I I I I I I I I I I I I I <br /> I a 25 C 14290-1 11210 1210 < I 1 lumhos/cm 1 0. I I 101 1 1 <br /> ITotaL Suspended Solids I I I I I I I I I I I . I I <br /> using glass fiber Type A/E 14252-1 1.1 2.0 I I I ` Img/L I<PQL I 1 101 1 I I <br /> (Non-Volatile Organic Carbon 14289-1-X10 1 94.45 ( 93.29 1 294.4 1 295.2 1 200.0 1 200.0 1mg/L 1 1. 1 0. 1 101100. 1100. 1 80 - 1201 <br /> MS Matrix Spike; MSD = Matrix Spike Duplicate; RPD = Relative Percent Difference <br /> Qualiyy t Officer <br /> h ny Bonanno <br /> 41 00 Atlas Cu. Bakersfield, CA 03308 • (805) 327-401 1 FAX [805)327 191B <br />