Laserfiche WebLink
Modules 1, 2, and 3 <br /> • Sump with dedicated pump for Modules 1 and 2 <br /> • Sump with dedicated pump for Module 3 <br /> • Volumetric flow meter for each sump pump <br /> • 3,000 gallon leachate storage tank at the southwest corner of Modules 1 and 2 <br /> • Discharge pump located at the storage tank <br /> Module 4 <br /> • Sump with dedicated pump for Module 4. <br /> • Volumetric flow meter for the leachate sump pump, indicating total gallons pumped and <br /> instantaneous flow rate. <br /> • A 10,000 gallon leachate storage tank. <br /> • Transfer pump (to fill water trucks, if needed). <br /> • Return pump (to pump leachate back to the Modules,if needed). <br /> Leachate is returned to the refuse of Module 3 or Module 4 in accordance with the current <br /> WDRs. Leachate is pumped form the leachate storage tank to an infusion point, a horizontal <br /> LFG collector, or to the working face if this face is over the lined area of Module 3 or 4. <br /> 3.3.2.3 Engineering and Chemical Properties of Soil <br /> The engineering and chemical properties of the soil at the NCRC&SL, are summarized below. <br /> • Soils at depths between 0 and 20 feet below the ground surface are predominantly clays <br /> and sandy silts. <br /> • The average plasticity index ranges from a low of 4 to a high of 34 with an average of 17. <br /> • Maximum dry density ranges from 99.4 to 117.5 pounds per cubic foot. <br /> • Remolded hydraulic conductivities (95% relative compaction, 2 to 4% wet of optimum) <br /> ranged from 4x10E-6 cm/sec to 1x10E-8 cm/sec. <br /> North County RC&SL Page 13 of 48 Public Works/Solid Waste <br /> JTD County of San Joaquin—November 30,2004 <br />