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CALIFORNIA LABORATORY SERVICES <br /> 10106/04 11 09 <br /> 1✓NSR-Sacramento Project Former Unocal 5098,5400 CI.,�Wor)�C bS�o�rtc�,��0915 <br /> 10411 Old Placerville Rd Suite 210 Project Number 06940-293-100 GOC# 41067 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Heningburg <br /> Conventional Chemistry Parameters by APHA/EPA Methods- <br /> Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limas RPD Limit Notes <br /> Batch CN07534-General Pre <br /> Blank(CN07534-BLKI) Prepared&Analyzed 09/29/04 <br /> Hexavalent Chromium,Dissolved ND 1 0 µg/L <br />' LCS(CN07534-BSI) Prepared&Analyzed 09/29/04 <br /> Hexavalent Chromium,Dissolved 491 1 0 pglL 5 00 982 80-120 <br /> LCS Dnp(CN07534-BSD1) Prepared&Analyzed 09/29/04 <br /> Hexavalent Chromium,Dissolved 5 16 1 0 pg/L 500 103 80-120 497 20 <br /> Matrix Spike(CN07534-MSI) Source CN10915-01 Prepared&Analyzed 09/29/04 <br /> Hexavalent Chromium Dissolved 530 10 gg/L 500 00 106 75-125 <br /> Matrix Spike Dup(CN07534-MSD1) __ _ Source CN10915-01 Prepared&Analyzed 09/29/04 <br /> Hexavalent Chromium,Dissolved 552 1 0 pg/L 500 00 110 75-125 407 25 <br /> 1 <br /> CA DOI IS FLAP A(,creditation/Registration plumber 1233 <br />' 3249 Fitzgerald Road Rancho Cordova, CA 95742 www californlalab cam 916-638-7301 Fax 916-638-4510 <br />