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Second Submittal <br /> Saturated Hydraulic Conductivity <br /> The saturated hydraulic conductivity dictates how easily groundwater moves through <br /> porous media (i.e., alluvium in this case). Transmissivity is a product of the saturated <br /> aquifer thickness and hydraulic conductivity. The CDSS (CDWR,2017) indicates that the <br /> transmissivity in the LaPorte area is around 50,000 gallons/day/ft. With an average <br /> thickness of 20 feet, the associated hydraulic conductivity is 2,500 gallons/day/ft2 (334 <br /> ft/day, or 0.12 cm/sec). <br /> An additional method of estimating hydraulic conductivity is to apply a specific capacity <br /> evaluation to available aquifer data from the CDSS database that assumes the drillers <br /> reported flow rate is from"blowing the hole dry"and thus, the drawdown in the well is the <br /> top of water minus the total depth Hof the well. Applying a specific capacity test to the wells <br /> in the LaPorte area yields a range of transmissivity from 3.6 to 950 ft2/day, as shown in <br /> Appendix D. <br /> Telesto performed aquifer,pumping test analyses on four of the 14 monitoring wells <br /> installed. Saturated hydraulic conductivity from testing ranged from approximately 40 to <br /> 260 ft/day (0.015 to 0.092 cm/sec). Appendix E documents the monitoring well aquifer <br /> tests. <br /> Loveland Ready-Mix Concrete 12 Telesto Solutions,Lac. <br /> 20180112_grotuWwatc wdy_2ndsu6nunala«x January2018 <br />