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3 <br /> August 5, 1997 LAB No: STK 733841-2 <br /> Luhdorff & Scaimanin, Consulting Enginee Sampled : July 3, 1997 <br /> Sample Site: Quarterly Water Sampling <br /> Description: South Tracy prod Sample type: Drinking Water <br /> i <br /> General Mineral Analytical Results <br /> i <br /> CONSTITUENT METHOD UNITS DLR RESULTS MCL <br /> Aggressiveness Index Calc. --- 0.1 11 .7 <br /> Langiier Index (Corrosivity) 0.1 -0.1 <br /> pH 4500-H B --- 7.3 <br /> E.C. 2510B umbos/cm 1 790 1600 (b) <br /> TDS (Residue at 180°C) 2540C mg/L 40 550 1000 (b) <br /> TDS (by Summation) Calc. mg/L 1 596 <br /> MBAS 5540C mg/L 0.05 ND 0.5 <br /> Boron (B) 200.7 mg/L 0.1 1.0 <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 ND 50 <br /> Zinc (Zn) 200.7 ug/L 50 ND 5000 <br /> E <br /> ND = Not Detected greater than or equal to the DLR. DLR = Detection Limit for Reporting purposes I <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 /> FGL ENVIRONM AL <br /> i <br /> V . <br /> Charles Inson, B.S, <br /> LaboratdOy Manager <br /> CJ:jgc <br /> I <br /> i <br /> I <br /> n <br />