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i <br /> i <br /> Environmental Laboratories_ PEACV�nr� <br /> Working To Restore Nature <br /> i <br /> QUALITY ASSURANCEIQUALITY CONTROL REPORT <br /> Attention John Lane Date Analyzed 04-14-93 <br /> RESNA G C # 2 <br /> 1710 Main Street Matrix Water <br /> Escalon, California 95320 <br /> Protect 11020 OL, Protect W0376 00 <br /> Chevron, Stockton <br /> Ethyl Total <br /> Benzene Toluene Benzene Xylenes TPHg TPHd <br /> Ppb_ Ppb ppb ppb ppb Ppb <br /> Detection Limit 05 0 5 05 05 50 50 <br /> Blank ND ND ND ND ND ND <br /> Standard 108 107 112 109 105 104 <br /> MS 102 102 107 103 102 117 <br /> MSD 107 108 115 110 112 127 <br /> • RPD 478 571 721 657 935 820 <br /> ppb=pacts per bilim a ug/L=m avgrarns per Itter <br /> ND=Not detected.Compound(s)may be present at concentrations below the detection I1m1L <br /> NR=Analysts not requested <br /> MS IS Matrix Spike <br /> MSD a Matnx Spice DuplKatc <br /> RPD=Relatrve Percent Difference <br /> Acceptable Range <br /> Standard 85-1i5% <br /> Blank ND <br /> MSIMSD 70130% <br /> RPD c25% <br /> LZ�1 "ti J Apnl 20,1993 <br /> Laboratory Represen Live Date Reported <br /> RESNA ENVIRONMENTAL LABORATORY IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1211) <br /> 42501 Albrae Street 0 Fremont, CA 94538 • Phone (510) 623-0775 9 (800) 247-5223 • FAX (510) 651-8754 <br />