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<< <br />WATER • WASTE WATER - HAZARDOUS WASTE - FUEL - AIR - SOIL <br />DELTA Ell� <br />ENVIRONMENTAL LABORATORIES <br />i QUALITY CONTROL REPORT <br />Client Method: <br />Units <br />E2C, Inc <br />1220 Crossman Ave ,Suite 200 Client Project ID 4780200 Analyst <br />' Sunnyvale, CA 94089 QC Batch Analyzed <br /># 3040275 QC Sample#- <br />Matnx Water Reported <br />Attention <br />Robb Welch <br />100 <br />ANALYTE <br />105 <br />128 <br />49 <br />Benzyne <br />Toluene <br />Spike Concentration <br />70-130 <br />70-130 <br />' <br />20 <br />20 <br />Matrix Spike % Recovery <br />130 <br />110 <br />Matrix Spike Duplicate% Recovery <br />130 <br />115 <br />Relative % Difference <br />00 <br />44 <br />LCS % Recovery <br />122 <br />108 <br />Control Limits <br />70-130 <br />70-130 <br />DELTA <br />Environmental Laboratories <br />' Califoma Certfiicabon# 1857 <br />H Khosh Khoo, PhD, <br />Laboratory Director/President <br />ylenes <br />Benzene <br />20 <br />60 <br />100 <br />122 <br />105 <br />128 <br />49 <br />53 <br />102 <br />122 <br />70-130 <br />70-130 <br />EPA 8020 <br />ug/L <br />JF <br />4/8/93 <br />3040285 <br />4/15/93 <br />685 Stone Road # 1 i & 12 • Senecia, CA 94510 9 Tel (707) 747-6081 • (510) 676-1938 - Fax (707) 747-6082 <br />