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1 <br />Environmental Laboratories -- <br />QUALITY ASSURANCE/QUALITY CONTROL REPORT <br />Attention: John Lane <br />RESNA <br />1710 Main Street <br />Escalon, California 95320 <br />Project: 11020.OL, Project W0541.00 <br />Corrigan Property, Stockton <br />Working To Restore Nature <br />Date Analyzed: 04-23-93 <br />G.C. #: 2 <br />Matrix: Water <br />Laboratory Repre66ntative <br />_May 5, 1993 <br />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 Aibrae Street • Fremont, CA 94538 + Phone: (510) 623-0775 0 (800) 247-5223 0 FAX: (510) 651-8754 <br />Ethyl <br />Total <br />Benzene <br />Toluene <br />Benzene <br />Xylenes <br />TPHg <br />TPHd <br />Ppb <br />ppb <br />ppb <br />ppb <br />ppb <br />ppb <br />Detection Limit: 0.5 <br />0.5 <br />0.5 <br />0.5 <br />50 <br />50 <br />Blank ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />Standard 104 <br />103 <br />108 <br />105 <br />92 <br />95 <br />MS 95 <br />90 <br />95 <br />81 <br />98 <br />86 <br />*4 MSD 96 <br />96 <br />100 <br />92 <br />107 <br />73 <br />RPD 1.05 <br />6.45 <br />5.13 <br />12.7 <br />8.78 <br />16.4 <br />I ppb = parts per billion = ug11. = micrograms per liter <br />E ND = Not detected. Compound(a) may be present at concentrations below the detection limit. <br />NR = Analysis not requested. <br />MS = Matrix Spike <br />MSD = Matrix Spike Duplicate <br />RPD = Relative Percent Difference <br />Acceptable Range <br />Standard <br />85-115% <br />Blank <br />ND <br />MS/WD <br />70-130% <br />F <br />RPD <br /><25% <br />Laboratory Repre66ntative <br />_May 5, 1993 <br />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 Aibrae Street • Fremont, CA 94538 + Phone: (510) 623-0775 0 (800) 247-5223 0 FAX: (510) 651-8754 <br />