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Environmental Labs <br /> 4946 Watt Avenue, #38 <br /> North Highlands, GA 95660 <br /> (916)334-8661 <br /> QA/OC REPORT <br />' <br /> Attention- Mr Dave Diem TPHd Analyzed 7-20-94 <br /> GEOCON Matrix Soil <br /> 11333 Sunco Drive, Suite 100 <br />' Rancho Cordova, Ca 95742 <br /> Project : 58080-06-01C <br /> TPI-Id <br /> PPM <br /> Reporting Limit 10 <br /> QA/QC PARAMETER <br /> Matrix Blank ND <br /> M PERCENT RECOVERIES <br /> Matrix Spike 84% <br /> Matrix Spike Duplicate 80% <br /> Laboratory Control Spike 79% <br /> Laboratory Control Spike Duplicate 71% <br />' ppm = parts per million = mg/Kg = milligram per kilogram <br /> ND = Not detected Compound(s)may be present at concentrations below the reporting limit <br />' Spikes dt Spike Duplicates wexc each spiked month 5000 ug at dxxel standard. <br /> ANALY'iXCAL PROCEDURES <br />' TPIId--7 oral petroleum hydrocarbons as diesel (high boiling points)are measured by extraction using EPA Method 3550, followed by <br /> modified EPA Method 8015,with direct Sample injection into a GC equipped with an FID <br /> A�'- 7-27-94 <br /> bo story Representative Date Reported <br /> FXCEI CHEM ENVIRONMFNIAL LABS IS CERTII7ED BY THE SIATE OF CALIFORNIA <br /> DrPAR7MENT OF IItAl I II SI RVICES AS A IIA7ARDOUS WASTETIMING LABORA70RY <br /> (Certification No 1760) <br />