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California Department of Toxic Substances Control ECL Number: A000950 <br />Environmental Chemistry Laboratory Quality Control Report for Metals by ICP to A000959 <br />1Z -G. <br />Cr =.nls: ND=Not Detected <br />l /% �i'r�✓�'GZ-c; Date: <br />Staff Chemist: Merlyn De Guzman, / c,e v Dale: 01r -tion Lead Chemist: Jarnait Garcha, <br />Sample Prepared By Dinesh Chand, <br />4 <br />Solid Lab QC Sample <br />Continuing Calibration <br />Duplicate Spiked Sample <br />ECL No.: <br />Matrix: SOLID <br />Control Limits <br />Spike results mg/kg <br />Unspiked <br />Spike <br />% Recovery <br />Mean Rec. <br />Element <br />mg/kg <br />Verification mg/L <br />known <br />found <br />% <br />known <br />found % <br />MS <br />MSD <br />RPD <br />MS MSD <br />Result(mg/1) <br />Added (mglkg) <br />Min % Max % <br />RPD <br />Cadmium -Cd <br />10.0 <br />10.2 102 <br />70.0 <br />130 <br />20.0 <br />Chromium -Cr <br />10.0 <br />9.82 98.2 <br />70.0 <br />130 <br />20.0 <br />Copper -Cu <br />10.0 <br />9.65 96.5 <br />70.0 <br />130 <br />20.0 <br />Lead -Pb <br />10.0 <br />10.1 101 <br />70.0 <br />130 <br />20.0 <br />Nickel -Ni <br />10.0 <br />9.80 98.0 <br />70.0 <br />130 <br />20.0 <br />Thallium -TI <br />10.0 <br />9.57 95.7 <br />70.0 <br />130 <br />20.0 <br />-i. <br />10.0 ' <br />10.2 102 <br />70.0 <br />130 <br />20.0 <br />Liquid Lab QC Sample <br />Initial Calibration <br />Duplicate Spiked Sample <br />ECL No.: AQ00951 <br />Matrix: 1 T ' A Ger <br />Control Limits <br />Spike results mg/kg <br />Unspiked <br />Spike <br />% Recovery <br />Mean Rec. <br />Element <br />mg/kg <br />Veriflication mg/L <br />known <br />found <br />% <br />known <br />found <br />% <br />MS <br />MSD <br />RPD <br />MS MSD <br />Resull(mg/1) <br />Added (mg/kg) <br />Min % Max % <br />RPD <br />Cadmium -Cd <br />1.00 <br />1.04 <br />104 <br />50.3 <br />51.9 <br />2.93 <br />ND <br />50.0 <br />lot <br />104 <br />70.0 <br />130 <br />20.0 <br />Chromium -Cr <br />1.00 <br />1.01 <br />101 <br />52.5 <br />52.4 <br />0 <br />0.87 <br />50.0 <br />103 <br />103 <br />70.0 <br />130 <br />20.0 <br />Copper -Cu <br />1.00 <br />1.00 <br />100 <br />320 <br />322 <br />4.55 <br />277 <br />50.0 <br />86.0 <br />90.0 <br />70.0 <br />130 <br />20.0 <br />Lead -Pb <br />1.00 <br />1.03 <br />103 <br />49.6 <br />51.6 <br />4.14 <br />1.13 <br />50.0 <br />96.9 <br />101 <br />70.0 <br />130 <br />20.0 <br />Nickel -Ni <br />1.00 <br />1.01 <br />101 <br />86.4 <br />88.7 <br />4.77 <br />39.3 <br />50.0 <br />94.2 <br />98.8 <br />70.0 <br />130 <br />20.0 <br />Thallium -TI <br />1.00 <br />1.00 <br />100 <br />48.8 <br />56.1 <br />13.7 <br />ND <br />50.0 <br />97.6 <br />112 <br />70.0 <br />130 <br />20.0 <br />Zinc -Zn <br />1.00 <br />1.05 <br />105 <br />66.0 <br />68.0 <br />3.57 <br />11.1 <br />50.0 <br />110 <br />114 <br />70.0 <br />130 <br />20.0 <br />Cr =.nls: ND=Not Detected <br />l /% �i'r�✓�'GZ-c; Date: <br />Staff Chemist: Merlyn De Guzman, / c,e v Dale: 01r -tion Lead Chemist: Jarnait Garcha, <br />Sample Prepared By Dinesh Chand, <br />4 <br />