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January 30, 1997 LAB No: STK 730422-1 <br /> Luhdorff & Scalmanini , Consulting Eng. Sampled January 21, 1997 <br /> Sample Site: Quarterly Water Sampling <br /> Description: Browns New Sample type: Drinking Water <br /> General Mineral Analytical Results <br /> CONSTITUENT METHOD UNITS DLR RESULTS MCL v <br /> Aggressiveness Index Calc. --- 0.1 12.5 <br /> Langlier Index (Corrosivity) 0.1 0.6 <br /> pH 4500-H B ---- 7.9 <br /> E.C. 25106 umhos/cm 1 880 1600 (b) <br /> TDS: (Residue at 180°C) 2540C mg/L 40 540 1000 (b) <br /> TDS (by Summation) Calc. mg/L 1 681 <br /> MBAS 5540C mg/L 0.05 ND 0.5 <br /> Boron (B) 200.7 mg/L 0.1 1 .2 <br /> Copper (Cu) 200.7 ug/L 30 ND 1000 <br /> Iron (Fe) 200.7 ug/L 30 180 300 <br /> Manganese (Mn) 200.7 ug/L 30 ND 50 <br /> Zinc (Zn) 200.7 ug/L 30 ND 5000 <br /> ND = Not Detected greater than or equal 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) mlg/L = Milligrams Per Liter (ppm) <br /> (b) Upper limit, Mineralization - Secondary Drinking Nater Standards. <br /> FGL ENVIRONME AL <br /> —C� <br /> Charles 'o 'on, B.S. <br /> Laboratory anager <br /> CJ:jgc <br />