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Musco Family Olive Compano - 2 - 30 January 2008 <br /> east of Hansen Road. Musco may consider additional data from its well K-1 also. Any <br /> data relating to the groundwater at the Musco Facility should be included in the Phase II <br /> Well Installation Report due on 15 July 2008. <br /> 2. Well Cluster #2 is being proposed to compare TDS concentrations offsite to those in <br /> well MW-17 and proposed well cluster#1. The proposed well further northeast <br /> identified as Canal Influence is intended to monitor groundwater further away from the <br /> canal system. <br /> Staff agrees with these locations. Staff understands that well cluster #2 may be <br /> installed as a shallow and deep well cluster depending on depth to first encountered <br /> groundwater. Staff requests an additional shallow well be installed southeast of well <br /> cluster#2, south of the Safeway distribution warehouse and downgradient of the swale. <br /> This well location will provide better triangulation in the shallow zone and also provide <br /> additional water quality information downgradient of the Swale. <br /> 3. Well cluster#3 is being proposed between wells MW-16 and MW-4 to better <br /> characterize depth to groundwater and water quality in this area. Musco proposes a <br /> shallow well will be installed at this location. <br /> Staff agrees with the proposed location but requests Musco install a well at first <br /> encountered groundwater if shallow groundwater is not encountered. If groundwater is <br /> encountered deeper in the boring, Musco should construct a well. <br /> 4. Well cluster#4 is being proposed between the locations of wells MW-4 and MW-8 to <br /> improve the understanding of the occurrence of groundwater and the spatial distribution <br /> of sand and clay materials. <br /> Staff agrees with the proposed boring location but recommends that Musco construct a <br /> well at first encountered groundwater to better characterize groundwater quality and <br /> flow through this area. <br /> 5. Deep well #5 is being proposed to assess the nature and extent of elevated TDS <br /> concentrations in groundwater at the northern boundary of the site. <br /> Staff agrees with this location and Musco is proposing to install this well in first <br /> encountered groundwater, shallow or deep. If shallow groundwater is encountered, <br /> Musco should consider advancing a boring to deep groundwater and construct a <br /> second well. <br /> Staff reminds Musco the Phase I Groundwater Investigation Report and Work Plan for the <br /> Phase 11 Groundwater Investigation report is due 15 February 2008. <br />