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Lewicki & Associates <br /> ENGINEERING I GEOLOGY I ENVIRONMENTAL <br /> November 17, 2022 <br /> Robert Zuber <br /> Colorado Division of Reclamation, Mining, and Safety <br /> 1313 Sherman St, Rm 215 <br /> Denver, CO 80203 <br /> (303) 866-3567 <br /> Delivered Via Email <br /> RE: Delta Paving Gravel Pit, M-1998-105 <br /> AM-02 Application Preliminary Adequacy Response <br /> Mr. Zuber: <br /> Please accept this letter on behalf of Grand Junction Pipe & Supply Co. dba Elam Construction, Inc. <br /> as the response to the second adequacy letter from your office dated August 28, 2022 regarding <br /> the Delta Paving Gravel Pit, File No. M-1998-105. Responses are also provided for the <br /> Groundwater Monitoring Plan and Geotechnical adequacy comments that were received by the <br /> Division. The outstanding items are addressed below: <br /> 1 . Second Adequacy Review <br /> Comments <br /> 2) The name of the permittee is not consistent and should be the full name: "Grand Junction Pipe <br /> & Supply Co."Examples include page i-1 and Exhibit O. Please update as appropriate. <br /> • It appears that the revised application form was not submitted. Please submit that <br /> form with the correct company name. In the copy of Exhibit O in the September 241 <br /> submittal, the name "Grand Junction Pipe Co."is listed. Please change to "Grand <br /> Junction Pipe & Supply Co"or explain why that is not necessary. <br /> Please see the revised application form and Exhibit O, attached to this letter, with the discrepancies <br /> in the permittee name fixed. <br /> 6.4.7 Exhibit G —Water Information <br /> 13) In the Floodplain section, text should be added to explain how the northern banks of the Phase <br /> 3 area will be protected during flooding. <br /> • On the F-1 Reclamation Plan, please address the following related to the details. <br /> i) The detail states that the inflow/outflow structure will be built during final <br /> reclamation. However, the river bank should be protected during mining if the pit <br /> is within 400 feet of the river. Please edit the detail on the map accordingly. <br /> The inflow/outflow structure cannot be built until mining has reached its final extents, as the spillway <br /> width and the pit side slope armoring cannot be placed until the final pit slope is present. To install <br /> Delta Paving <br /> Lewicki&Associates <br /> OUPLUIiwur 2022 <br />