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J�AnalyticalTechnologies,lnc. <br /> GENERAL CHEMISTRY - QUALITY CONTROL <br /> DUP/MS <br /> Page 4 <br /> Client : ALISTO ENGINEERING <br /> Project # : G317905/10-151-x3/003 ATI I.D. 502287 <br /> Project Name: EP SITE #11195/LATHROP, CA. <br /> ---------------------------- <br /> Parameters REF I D Units Sample Dup RPD Spiked Spike % <br /> Result Result Sample Conc Rec <br /> ----------------------------- <br /> OIL AND GREASE 503006-01 MG/L 4.4 5.0 13 8.1 5.0 74 <br /> % Recovery = (Spike Sample Result - Sample Result)*100/Spike Concentration <br /> RPD (Relative % Difference) _ (Sample Result - Duplicate Result)*100/Average Result <br /> -i <br />