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Groundwater Well Installation Work Plan Sharpe Army Depot <br /> Lathrop, California <br />Ahtna Environmental, Inc. Page 1 of 6 <br />Project Sharpe Army Depot <br />Document Draft Groundwater Well Installation Work Plan Date June 2020 <br />Contractor Ahtna Environmental, Inc. <br />Contract USACE Contract No. W91238-19-C-0018 <br /> <br />Reviewer Nadia Hollan Burke Organization Environmental Protection Agency Date July 14, 2020 <br />Item Reference Review Comment Response <br />Specific Comment <br />1. Section 1.0, <br />Introduction, <br />Proposed Well <br />Installations, Page <br />1 <br />The Proposed Well Installations table does not <br />reference the correct figure for each of the proposed <br />wells. For example, the table indicates that EWNC7 is <br />found on Figure 4, but EWNC7 is found on Figure 5. <br />Please revise the Proposed Well Installations table to <br />correctly reference the figure on which each well can <br />be found. <br />Revised. The table in Section 1.0 has been revised to <br />correctly reference the figure on which each well can be <br />found. <br />2. Section 1.0, <br />Introduction, <br />Proposed Well <br />Installations, Page <br />1, and Figure 2, <br />Hydrogeologic <br />Cross-Section <br />Locations <br />The text indicates that new extraction well EWNC7 will <br />be located near MW527, but MW527 is not included <br />on Figure 2, which shows wells across the site. Please <br />revise Figure 2 to include monitoring well MW527. <br />Clarification. EWNC7 will be located near the MW527R <br />well cluster. <br /> <br />Revised. Section 1.0 was revised to clarify EWNC7 will <br />be located near the MW527R well cluster. MW527R was <br />added to Figure 2.