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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2008-0148 2 <br /> LAWRENCE LIVERMORE NATIONAL SECURITY, LLC AND <br /> THE U.S. DEPARTMENT OF ENERGY FOR <br /> LAWRENCE LIVERMORE NATIONAL LABORATORY SITE 300 <br /> SAN JOAQUIN AND ALAMEDA COUNTIES <br /> Attachment 15 continued <br /> Summaryof Site 300 active percolation pits <br /> Building Waste Percolation pit Upgradient Downgradient Direction Water Current Distance of <br /> stream design well(s) well(s) of flow bearing depth to downgradient <br /> (dimensions [ft] zone ground well from <br /> and design water (ft) percolation pit <br /> rate ft <br /> 826 Cooling 6x6x5 a a b b b b <br /> tower 300 gpd <br /> 827A 2 Cooling 18x18x5 W-827-04 W-827-01 SE Tnbs2 Below 300 (from 827C <br /> towers 1200 gpd W-827-05 W-827-02 Tnsclb 48 percolation pit <br /> W-827-03 Tnbs, 50 to W-827-01, <br /> 194 W-827 -02, <br /> &W-827-03) <br /> 827A, C, Mechanical 827A— 5x4x4, W-827-04 W-827-01 SE Tnbs2 Below 750 (from 827E <br /> D, E equipment 150 gpd W-827-05 W-827-02 Tnsclb 48 percolation pit <br /> 827C — 7x6x6 W-827-03 Tnbs, 50 to W-827-01, <br /> 827D — 6x5x5 (cross-gradient) 194 W-827-02, & <br /> 827E — 5x4x4 W-827 -03) <br /> 150 gpd (each) <br /> 851 2 Cooling 14x14x5 W-851-05 W-851-08 Tmss 183 350 from 851 <br /> towers 900 gpd W-851-07 SE Tmss 140 cooling tower <br /> to W-851-07, & <br /> W-851-08) <br /> a No wells in vicinity. <br /> b Information not available. <br /> c Confined zone; depth refers to groundwater depth in well. Depth to HSU is much deeper. <br />