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Civil Resources LLC <br /> September 24, 2019 <br /> Page 2 of 3 <br /> - Please correct the following issues with Figure 2c— Structures <br /> - Structure#7 (Hillsboro Irrigation Ditch) appears to be missing/unlabeled or <br /> mislabeled on the Figure 2C provided. <br /> "#4"near the Town of Milliken property in the center of the map is black and not <br /> red text. <br /> The sewer line in WCR 48 (assumed owned by Town and covered by Town of <br /> Milliken agreement), and none of the overhead electric lines within the permit or <br /> within 200' of the permit have been highlighted. <br /> - Please remove unneeded items (such as the numbers in diamonds) from the map <br /> and legend. <br /> - Permittee will need to commit to continue monthly water level monitoring for the site and <br /> provide data obtained in the annual report. <br /> Exhibit L—Reclamation Cost Estimate will need to include detailed information for the line <br /> item(s) for spillway construction. Costs for design/engineering, materials, hauling, and <br /> placement/construction will need to be broken out for each spillway proposed. <br /> Due to the liability to the State for slurry walls being damaged after installation, either by the <br /> mining process, or flood events prior to final release, DRMS bonding policy for slurry walls has <br /> recently been modified to the following practice: <br /> - DRMS will require bonding for the full amount for slurry wall installation for any proposed <br /> or completed slurry wall until all flood control structures are in place, and the wall has been <br /> either fully or provisionally approved by SEO. <br /> - DRMS will reduce the bond for slurry walls that have been installed, complete with all <br /> required flood control structures, and approved either fully or provisionally by SEO, by 80% <br /> (20% of full cost of wall to be retained in DRMS bond amount while slurry wall remains in <br /> the permit area). <br /> - Upon final release of the slurry wall from the permitted area, the remaining 20% of the slurry <br /> wall bond will be released. <br /> - DRMS will accept the $5/SF cost for slurry wall installation for the purposes of estimating <br /> slurry wall costs at this site, unless actual installation costs can be documented/provided. <br /> Please revise the Exhibit L costs to address the above issues. Reclamation costs provided will be <br /> reviewed by DRMS when all adequacy issues have been addressed. This Exhibit should be <br /> updated as needed to reflect all changes made during the adequacy review process. <br />