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E <br /> April 23, 1997 LAS No: STK 732038-2 <br /> Luhdorff & Scalmanini , Consulting Eng. Sampled April 9, 1997 <br /> I Sample Site: Quarterly Water Sampling <br /> j Description: South Tracy Prod Sample type: Drinking Water <br /> I <br /> General Mineral Analytical Results <br />` CONSTITUENT METHOD UNITS DLR RESULTS MCL <br />{' Aggressiveness Index Calc. --- 0.1 11 .0 <br /> Langlier Index (Corrosivity) 0.1 --0.8 <br /> pH 4500-H B --- 6.6 <br /> E.C. 25106 umhos/cm 1 790 1600 (b) <br /> TDS (Residue at 180°C) 2540C mg/L 40 , 500 . 1000 (b) <br /> TDS (by Summation) Calc. mg/L 1 602 <br /> MBAS 5540C mg/L 0.05 ND 0.5 <br /> I <br /> Boron (B) 200.7 mg/L 0.1 1 .0 I <br /> Copper (Cu) 200.7 ug/L 50 ND 1000 <br /> Iron (Fe) 200.7 ug/L 50 ND 300 <br /> Manganese (Mn) 200.7 ug/L 30 SVD 50 <br /> Zinc (Zn) 200.7 ug/L 50 ND 5000 <br /> ND = Not Detected greater than or eguaL to the DLR. DLR = Detection Limit for Reporting purposes <br /> MCL = Maximum Contaminant Level (California Health & Safety Code, Title 22) <br /> ug/L = Micrograms Per Liter (ppb) mg/L = Milligrams Per Liter (ppm) <br /> (b) upper limit, Mineralization - Secondary Drinking Water Standards. <br /> E <br /> i <br /> FGL ENVIRONMENTAL <br /> F <br /> Charles Jo on, B.S. <br /> Laboratory anager j <br /> CJ:jgc <br /> I <br /> u <br />