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i <br /> i <br /> April 23, 1997 LAB No: STK 732038-3 <br /> Luhdorff & Scalmanini , Consulting Eng. Sampled April 9, 1997 <br /> , <br /> sample Site: Quarterly Water Sampling <br /> Sample type: Drinking Water i <br /> Description: Koster i <br />� General Mineral Analytical Results <br /> CONSTITUENT METHOD UNITS DLR RESULTS MCL <br /> Aggressiveness Index Calc. --- 0. 1 11 .2 <br /> Langlier Index (Corr.osivity) 0. 1 -0.6 <br /> pH 4500-H 8 --- 6.8 <br /> E.C. 2510E umhos/cm 1 820 1600 (b) <br /> TDS (Residue at 180°C) 2540C mg/L 40 500 1000 (b) <br /> TDS (by Summation) Calc. mg/L 1 594 <br /> MEAS 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 j <br /> Iron (Fe) 200.7 ug/L 50 220 300 <br /> Manganese (Mn) 200.7 ug/L 30 ND 50 <br /> Zinc (Zn) 200.7 ug/L 50 ND 5000 3` <br /> ND = Not Detected greater than or equal to the DLR. DLR = Detection Limit for Reporting purposes <br /> MCL m 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. e <br /> FGL ENVIRONMENTAL <br />' Charles nson, B.S. <br /> Laborat y Manager <br /> E <br /> CJ:jgc E <br /> I <br /> i <br /> i <br /> , <br /> 4 <br /> , <br /> 1 <br /> i <br />