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5.15 WATER RESOURCES <br /> TABLE 5.15-8 <br /> Expected LEC Water Quality <br /> Parameter Units Cooling Tower Blowdown <br /> Alkalinity—Bicarbonate mg/La 107.31 <br /> Alkalinity—Carbonate mg/L 0.00 <br /> Alkalinity—P-BaC12 mg/L 0.00 <br /> Barium mg/L 0.00 <br /> Chloride mg/L 527.40 <br /> Fluoride mg/L 0.00 <br /> Calcium mg/L 159.43 <br /> Magnesium mg/L 58.95 <br /> Iron mg/L 0.06 <br /> Nitrate mg/L 253.74 <br /> pH s.u.b 7.50 <br /> Phosphate mg/L 2.74 <br /> Potassium mg/L 95.15 <br /> Silica mg/L 36.94 <br /> Sodium mg/L 456.95 <br /> Sulfate mg/L 488.19 <br /> Total Dissolved Solids mg/L 2,186.87 <br /> Specific Conductance microsiemens per 4,037.10 <br /> centimeter <br /> Free CO2 mg/L 5.65 <br /> Total Cations mg/L CaCO3 1,759.58 <br /> Total Anions mg/L CaCO3 1,579.86 <br /> Total Hardness mg/L CaCO3 641.46 <br /> Source: NALCO, 2008 <br /> amilligrams per liter <br /> bstandard units <br /> 5.15.1.6 Stormwater Runoff and Drainage <br /> The existing LEC site is a basin-like area moderately covered with seasonal grass and there <br /> is a natural swale along the southwest corner of the site (Carlton Engineering, 2008). A <br /> culvert is in place in the southern portion of the site to convey drainage runoff from the <br /> swale offsite. Currently, drainage from the LEC site is indirectly discharged to White Slough <br /> and Bishop Cut (Carlton Engineering, 2008). <br /> For the LEC project, the site will be graded such that all runoff will be collected for <br /> discharge to the WPCF. Tables 5.15-9 and 5.15-10 present the pre-development and post- <br /> development runoff volumes for the site,respectively. <br /> SAC/371322/082340005(LEC_5.15_WATER_RESOURCES.DOC) 5.15-17 <br />