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Intertek Testing Services <br /> Environmental Laboratories <br /> REPORT DATE 20-MAY-1997 REPORT NUMBER D97-5707 <br /> SAMPLE SUBMITTED BY ITS/San Jose <br /> ATTENTION Todd Geringer <br /> PROJECT 555 CATELLUS-STOCKTON <br /> LABORATORY QUALITY CONTROL REPORT <br /> ANALYTE Total Petroleum Hydrocarbon Total Petroleum Hydrocarbon <br /> BATCH NO 33-051697 33-051697A <br /> LCS LOT NO AC033-3C AC033-16A <br /> PREP METHOD ==- <br /> PREPARED BY <br /> ANALYSIS METHOD EPA 5030/8015M EPA 5030/8015M <br /> ANALYZED BY VHT CNA <br /> UNITS u9/L ✓<9/L <br /> METHOD BLANK < 50 0 < 50 0 <br /> SPIKE LEVEL 5000 5000 <br /> SPK REC LIMITS 75 0 - 125 75 0 - 125 <br /> SPK RPD LIMITS 25 0 25 0 <br /> MS RESULT 4790 4820 <br /> MS RECOVERY % 95 8 96 4 <br /> MSD RESULT 5150 4850 <br /> MSD RECOVERY % 103 97 0 <br /> MS/MSD RPD % 7 24 0 62 <br /> BS RESULT NA NA <br /> BS RECOVERY % NA NA <br /> BSD RESULT NA NA <br /> BSD RECOVERY Y, NA NA <br /> BS/BSD RPD % NA NA <br /> DUP RPD LIMITS --- --- <br /> DUPLICATE RPD % NA NA <br /> LCS LEVEL 500 500 <br /> LCS REC LIMITS 75 0 - 125 75 0 - 125 <br /> LCS RESULT 501 467 <br /> LCS RECOVERY % 100 93 4 <br /> SPIKE SAMPLE ID 5707-3 5871-1 <br />' SAMPLE VALUE < 50 0 < 500 <br /> DUP SAMPLE ID - <br /> DUP SAMPLE VAL/1 <br /> DUP SAMPLE <br /> NA Not applicable <br /> rIntertek Testing Services NA Inc <br /> 1089 East Collins Boulevard Richardson, TX 75081 <br /> Telephone (972) 238-5591 Fax (972) 238-5592 <br />