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California Department of Toxic Substances Control HML No.: A000819 <br /> HAZARDOUS MATERIALS LABORATORY To: A000620 <br /> 700 Heinz Avenue, Suite 100, Berkeley, CA 94710 Auth. No.: HMU5607 <br /> Page: 1 <br /> Laboratory Analysis Report of: 2 <br /> Waste Extraction Test for Copper <br /> Date Collected: <br /> Requestor's Name: Leo Valdez <br /> Requestor's Address:700 Heinz Avenue, suite 200 Date Received: 1/12/2005 <br /> Berkeley CA 94710 Date Extracted: 4/4/2005 <br /> Site or Location: Mepco Label systems Date Analyzed: 4/7/2005 <br /> Site Address: 29 North Aurora St. <br /> Stockton, CA 95201 <br /> Analytical Procedure: EPA SW-846 601 OB & HML Method 910-S <br /> Samples are extracted with 0.20 M Citrate Buffer at pH 5 (ratio of 1:10), using a mechanical <br /> shaker for 48 hours. Extracts are centrifuged and filtered through a 0.45 micron filter. <br /> Metal analysis of the extract is by ICPAES (EPA#6010B). <br /> HML Collector's Sample Copper MDL <br /> Number: Sample No.: Matrix: mg/L mg/L <br /> A000819 Mepco#1 Solid 83.1 0.10 <br /> A000820 Mepco#2 Liquid' 37.8 0.10 <br /> �I <br /> © P ��©S <br /> 3 <br /> Comments: ' =The liquid sample was filtered as such through the 0.45 micron filter. ✓ <br /> rr <br /> Chemist: <br /> Kdshyap Thakore Date <br /> �/ i <br /> ICP Analyst: 7 t <br /> T <br /> Merlyn He Guzman Date <br /> Supervisor: <br /> 710r <br /> Jarnail Garcha Date <br />