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EXCELCHEM <br />ENVIRONMENTAL LABS <br />500 Giuseppe Court, Suite 9 <br />Roseville, CA 95678 <br />Phone#: (916) 773-3664 Fax#: (916) 773-4784 <br />ANALYSIS REPORT <br />Attention: Mr. Noel Lerner <br />Helmick & Lerner, Inc. <br />1620 Executive Court <br />Sacramento, CA 95864 <br />Project: 00811/Stockton Unified School District <br />Lead <br />PPM <br />Reoortine Limit: 2.5 <br />SAMPLE <br />Laboratory Identification <br />0605-0608 4.9 <br />50197014-017 <br />0609-0611 6.8 <br />50197018-020 <br />0636 4.5 <br />50197045 <br />0637 4.6 <br />50197046 <br />Date Sampled: 01-03-97 <br />Date Received: 01-03-97 <br />Date Analyzed: 01-03-97 <br />Matrix: Soil <br />PPM = Parts per million = mg/Kg = milligram per Kilogram <br />ND _ Not detected. Compound(s) may be present at concentrations below the reporting limit. <br />ANALYTICAL PROCEDURES <br />LEAD-- is measured by digestion using EPA Method 3050 followed by EPA Method 7420. <br />01-07-97 <br />abo atory Representative Date Reported <br />EXCELCHEM ENVIRONMENTAL LABS IS CERTIFIED BY THE STATE OF CALIFORNIA <br />DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br />(Certification No. 1760, 2119) <br />