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BSI \ & Associates Chemical Laboratories <br /> 1414 Stanislaus Street • Fresno, Caiirornia 93706 • Telephone 12091 485-6310 • Fax 12091 485-7427 <br /> Remediation Services Report Date 4/24/90 Updated 5/3/90 <br /> 5729-F Sonoma Drive <br /> Pleasanton, CA 94566 Date Sampled 4/11/90 <br /> R89014 <br /> Date Received 4/12/90 <br /> Sample Type Water Date Analyses Completed 4/20/90 Undated 5/l/90 <br /> Lab Number Sample Description <br /> 1171-4 MW2 1335 hrs . <br /> 1171-5 MW5 1418 hrs . <br /> 1171-6 MW3 1520 hrs . <br /> Results of General Chemical Analyses <br /> Analyte Units ILab.No. Lab.No. Lab.No. <br /> 1171-4 1171-5 1171-6 <br /> Alkalinity Total (CaCO3 ) . . ma/1 290 i60 180 <br /> Arsenic (As ) . . . . . . . . . . . . . . MQ/1 0 . 002 0 . 008 0 . 003 <br /> Chromium, Total (Cr) . . . . . ma/1 0 . 031 0 . 006 1 . 005 <br /> Specific Conductivity (EC) umhos/cm 810 510 1 550 <br /> Iron (Fe) . . . . . . . . . . . . . . . . . mr?!1 <0 . 05 <0 . 05 <0 . 05 <br /> Lead (Pb) . . . . . . . . . . . . . . . . . ma/l 0 . 007 0 . 005 _ 0 . 005 <br /> Manganese (Mn) . . . . . . . . . . . . ma/1 <O . 00SI <0 . 0051-<9 . 905 <br /> Nickel (Ni) . . . . . . . . . . . . . . . mo/1 <0 . 005I <0 . 005 <0 . 005 <br /> PH. . . . . . . . . . . . . . . . . . . . . . . . Std. 7 . 4 7 . 3 7 . ' <br /> Total Dissolved Solids . . . . MCT/1480 320 3''0 <br /> Zinc ( Zn) . . . . . . . . . . . . . . . . . mall <0 . 05 <0 . 0 <r . 05 <br /> Vanadium. . . . . . . . . . . . . . . . . . mo/1 <0 . 55 I <0 . 05 <0 . 05 <br /> y <br /> Cyn t a C Supervisor Dofig Deasw, _ncrcanics Supervisor <br /> 11424911f <br />