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• Table 2.4-1 <br />STATISTICAL SUMMARY <br />POND MB-2R WATER QUALITY <br />Date MIN MAX MEAN S. D. <br /> <br />Field Parameters <br />pH 6.8 8.4 7.80 0.71 <br />Conductivity (mmhos/cm) 1.02 1.13 1.08 0.05 <br />Specific Conductance (pmhos/cm @ 25°C) 820 1540 1201 295 <br />Temperature (°C) 11.5 22.3 16.53 4.44 <br />Other ND ND ND ND <br />Laboratory Analyses (mg/L unless otherwise noted) <br />(metals) <br />Aluminum (dissolved) ND ND ND ND <br />Arsenic (total recoverable) 0 0.002 0.001 0.001 <br />Cadmium 0 0 0.00 0.00 <br />Calcium 22 32 27 4 <br />Copper ND ND ND ND <br />Iron (total) 2.13 2.13 2.13 0.00 <br />Iron (dissolved) 0 0.18 0.06 0.08 <br />• <br />Lead 0 0 0.00 0.00 <br />Magnesium 13 16 14 1 <br />Manganese (total) 0.041 0.041 0.041 0.000 <br />Manganese (dissolved) 0 0.036 0.012 0.017 <br />Mercury (total recoverable) 0 0.0002 0.0001 0.0001 <br />Molybdenum ND ND ND ND <br />Selenium (total recoverable) 0 0.009 0.004 0.004 <br />Sodium 137 298 220 66 <br />Zinc 0.01 0.03 0.02 0.01 <br />(wet chemistry) <br />Bicarbonate (as CaCO3) 224 477 316 114 <br />Chloride 35 38 36 1 <br />Conductivity @ 25°C (Nmhos/cm) 1170 1170 1170 0 <br />Hardness (as CaCO3) 119 135 125 7 <br />Nitrate/Nitrite 0.04 1.05 0.40 0.46 <br />pH (units) 9.1 9.1 9.10 0.00 <br />Phosphate (PO4 as P, ortho dissolved) 0.027 0.2 0.14 0.08 <br />Sodium Absorption Ratio (SAR) 5.19 12 8.74 2.79 <br />Sulfate 171 310 250 58 <br />Total Dissolved Solids (TDS) 530 1050 770 214 <br />Total Suspended Solids (TSS) ND ND 32 ND <br />fiN' m°SrsHt <br />