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11-19-1997 4:25PM FROM ENTECH ANALYTICAL 408 7351554 P. 3 <br /> CALIFORNIA DEPARTMENT OF HEALTH SERVICES <br /> ENVIRONMENTAL LABORATORY ACCREDITATION PROGRAM <br /> List of Approved Fields of Testing and Analytes <br /> Entech Analytical Labs., Inc. TELEPHONE No:(408)735-1550 CERTIFICATE NUMBER: 2224 <br /> 525 Del Rey Avenue,Suite E CALIFORNIA COUNTY:Santa Clara EXPIRATION DATE: 12/31/98 <br /> Sunnyvale,CA <br /> 2 InorgAnic Chemistry and Physical Pronerlies of Drinking Nater excluding Toxic Chemical Elements <br /> 2.1 Alkalinity <br /> 2.2 Calcium <br /> 2.5 Fluoride <br /> 2.6 Hardness <br /> 2.7 Magnesium <br /> 2.9 Nitrate <br /> 2.10 Nitrite <br /> 2.11 Sodium <br /> 2.13 Total Filterable Residue and Conductivity <br /> 2.16 Phosphate,ortho <br /> 2.17 Silica <br /> 2.18 Cyanide <br /> 2.19 Potassium <br /> 3 Analysis f Toxic Chemical Eleme t sin Drinkin W <br /> 3.1 Arsenic <br /> 3.2 Barium <br /> 33 Cadmium <br /> 3.4 Chromium,total <br /> 3.5 Copper <br /> 3.6 Iron <br /> 3.7 Lead <br /> 3.8 Manganese <br /> 3.9 Mercury <br /> 3.10 Selenium <br /> 3.11 Silver <br /> 3.12 Zinc <br /> 3.13 Aluminum <br /> 3.15 Antimony <br /> 3.16 Beryllium <br /> 3.17 Nickel <br /> 5 9reanic Chemistry of Drinking Water(exeluding measurements by GCIIMS combination) <br /> 5.22 EPA Method 502.2 Trihalomethanes only <br /> 9 Physical Pronerties Telling of Hazardous Waste <br /> 9.2 CorrosiviEy-pH determination(Title 22,CCR,66261.22) <br />