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May 21, 2019 <br /> Mr.Jared Ebert <br /> Environmental Protection Specialist <br /> Division of Reclamation, Mining and Safety(DRMS) <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Subject: Engineering Evaluation for Borrow Site for Bennett Crossing—Parcel 2 <br /> Dear Mr. Ebert <br /> The purpose of this letter is to address DRMS Rule 6.3.12 regarding any adverse effects <br /> the mining operation might have on the stability of any structures located within 200 feet <br /> of the affected land. <br /> The Borrow Site for Bennett Crossing project is excavating no greater than 5.1 feet with an <br /> average depth of 0.8 feet of excavation across the site. The nearest permanent manmade <br /> structure is 170 feet from the limit of excavation where the excavation depth is 1.5 feet. <br /> In my opinion the removal of fill soil from the borrow site will not undermine the stability <br /> of permanent manmade structures located within 200 feet of the borrow site, nor will <br /> activities on the borrow site cause damage to such structures. <br /> Please contact me with any questions, <br /> ?ir <br /> Josh Hooper, PE <br /> Project Manager <br /> 303-357-2410 <br /> Joshua.Hooper@HDRlnc.com <br /> hdrinc.com <br /> 1670 Broadway,Suite 3400,Denver,CO 80202-4824 <br /> (303)764-1520 <br />