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omas B anen, M.S <br />ality Assurance Officer <br />ENVIRON1• 'VITAL <br />Kt, T I <br />ANALYTICAL CHEMISTS <br />October 4, 1993 <br />San Joaquin County Health Dept <br />P.O. Box 2009 <br />Stockton , CA 95201 <br />_uCiPH 2: 1)4 <br />QAM, tD# 930929 8240-201A <br />RE: Organic Analysis <br />Extracted: N/A <br />Analyzed : September 29, 1993 <br />FGL Environmental Quality Assurance Report <br />TCLP METHOD 8240 <br />CONC. <br />SPIKED <br />ACCURACY <br />% RECOVERED <br />PRECISION <br />% DIFFERENCE <br />CONSTITUENT ug/L MS MSD AR RPD MAV <br />1,1-Dichloroethylene 10.0 112 98 D-235 13.3 50.0 <br />Benzene 10.0 109 100 37-151 8.6 50.0 <br />Trichlorethylene 10.0 103 96 71-157 7.0 50.0 <br />Chlorobenzene 10.0 107 99 37-160 7.8 50.0 <br />MS = Matrix Spike MSD = Matrix Spike Duplicate <br />Matrix = Laboratory Blank Water <br />AR = Acceptable Range RPD = Relative Percent Difference <br />MAV = Maximum Acceptable Value <br />FGL ENVIRONMENTAL <br />Corporate Offices & Laboratory <br />P.O. Box 272 / 853 Corporation Street <br />Santa Paula, CA 93061-0272 <br />TEL: (805) 659-0910 <br />FAX: (805) 525-4172 <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL: (209) 942-0181 <br />FAX: (209) 942-0423 <br />Field Office <br />Visalia, California <br />TEL: (209) 734-9473 <br />Mobile: (209) 738-6273