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Eit?vi* roipMeipt, <br /> LARRY E.O'BRIAN 7985 VANCE DRIVE,SUITE 205A <br /> FOUNDER ARVADA,COLORADO 80003 <br /> STEVAN L.O'BRIAN 303-423-7297 <br /> PRESIDENT FAX 303-423-7599 <br /> September 9, 2019 <br /> Mr. Timothy A. Cazier. P.E. RECEIVED <br /> Division of Reclamation, Mining & Safety <br /> 1313 Sherman St., Suite 215 SEP 09 2W9 <br /> Denver, CO 80215 <br /> DIVISION OF RECLAMATION <br /> MINING AND SAFETY <br /> Dear Mr. Cazier; <br /> RE: Ellicott Sand & Gravel LLC -Schubert Ranch Sand Resource <br /> M-2018-063 - Adequacy Response 01 <br /> On behalf of my client Ellicott Sand & Gravel LLC, I am responding to your <br /> adequacy review letter dated February 15, 2019. I have included your review points that <br /> need to be addressed in the order presented so the questions and answers will be in the <br /> same document for easy reference. <br /> Application <br /> 1. Item 10, p. 2: Primary Mine Entrance Location. The longitude provided for the entrance <br /> location(104' 21' 15.94") does not match the entrance location longitude shown on Map <br /> Exhibit B 004' 21' 17.60"). These locations should be consistent. Please make <br /> corrections to the pages with errors and resubmit the corrected page(s). <br /> The application page has the wrong numbers. I double checked the USGS Quad map <br /> location and the Map Exhibit B is correct, the Exhibit A - Legal Description is right and <br /> the location information on the first page of Exhibit D is correct. Attached is a copy of <br /> the corrected Item 10 on Page 2 of the Application form. <br /> 6.4.3 EXHIBIT C-Pre-mining and Mining Plan Map(s)of Affected Lands <br /> 2. Potential stream capture: Map Exhibit C-1 (along with Map Exhibit F) shows nearly the <br /> entire proposed pits appear to be within the 100-year floodplain. The DRMS is concerned <br /> that a 100-year flood event would erode highwalls next to the Black Squirrel Creek and <br /> Big Springs Creek; and as the pits are significantly deeper than the stream invert (perhaps <br /> as much as 60 feet), the streams would be captured by the pit and have no way to drain <br /> downstream. Pursuant to Rule 3.1.6, please describe how stream capture is to be avoided. <br />