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identifies the (approximate) locations . <br /> * Each nested well system shall include a minimum <br /> of three individual wells which are screened to <br /> represent the shallow, intermediate, & deep <br /> zones of interest in the aquifer. The specific <br /> depths of the screened intervals shall be based <br /> on lithologic conditions. For wells installed <br /> to determine and monitor conditions of the <br /> upper aquifer, the screened interval shall not <br /> exceed 20 feet in length. For wells installed <br /> to determine and monitor conditions of the <br /> intermediate and deeper zones of the aquifer, <br /> screened intervals shall be limited to a <br /> maximum 10 feet in length. <br /> Note- <br /> Figure 4-3 shows 3 new wells adjacent to CWS <br /> 20-01 while the description of screen lengths to <br /> be installed implies 4 wells. It is assumed that <br /> 4 wells will be installed; the Department will <br /> not approve installation of a multiple screened <br /> well . <br /> Figure 4-4 Delete "peagravel" and add "neat cement" , "grout" , <br /> "sand-cement grout" , or "concrete" . Ref; State of <br /> California Water Well Standards, Bulletin 74-81, <br /> December 1981. Be advised too that centalizers <br /> must be installed at intervals not to exceed 40 feet. <br /> Pale 4-9 First paragraph; <br /> Sand pack shall be limited to a maximum height of 5 <br /> feet above screened interval . <br /> Page 4-9 Second paragraph, second sentence; <br /> All new and existing monitoring wells shall <br /> be sampled following completion of well development . <br /> Page 4-10 Second paragraph, first sentence; <br /> Delete "and as appropriate for" and add, "arsenic, <br /> copper, and general minerals. " Delete fourth <br /> sentence too. <br />