Laserfiche WebLink
~~~~ <br />Er~viror~n?er~~, Ir~c. <br />LARRY E. O'BRIAN 7985 VANCE DRIVE, SUITE 205A <br />FOUNDER ARVADA,COLORADO 80003 <br />R/ECEIVED FAX303-423-7599 <br />June 16, 2006 V.~UN ~ 6 ZQQs <br />Division of Minerals and Geology <br />Mr. Richard M. Wenzel; III <br />Minerals Section - North <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Permit #: /~- C95~ owl Confidental?: Na <br />Class: f;rl SI uN MV# <br />From:~/~PiuCpNr( [onrvl.r4~vt To: DmL <br />Doc. Name: F1pEQuAC>' /~VIEUf S1c-SOoNSC __ __ <br />Doc. Date (if no date stamp): to ~ u Section/Exh. <br />Inspection Date N)A Specialist: jL.,/ clSm <br />Re; Grand County Department of Road & Bridge <br />Inspiration Point Gravel Pit MLR Permit # - M-1995-004 <br />Dear Rick: <br />On behalf of my client Grand County Department of Road & <br />Bridge I am responding to your March 23, 2006 Technical Revision <br />Adequacy Review, letter in the order presented. <br />1. Grand County would like to add the revision to add a changed <br />sloping plan to this Technical Revision. They request that <br />the mining and reclamation plans be revise to allow slopes <br />no greater that 2:1 for the entire mine area to match the <br />northern part of the east side. The original permit text <br />says the slopes along the old highwall would be graded 2:1. <br />This suggests that 2:1 slopes were acceptable to the Divi- <br />sion at that time. Review of the Pre-Mining Map show that <br />most of the original slopes were 2'/z:l or steeper, in some <br />cases nearly '/z:l. Grand County realizes that the Division <br />favors 3:1 slopes since they are easier to revegetate but <br />the limited resources in this mine dictated that we leave <br />steeper slopes. <br />2. Attached is a, revised and corrected Reclamation Plan Map <br />making the changes you suggested. Note that in the mined <br />area we used 10 foot contours instead of 2 foot like shown <br />on the original map. Setbacks are generally 25 feet from <br />permit line except on the steeper parts of the east line <br />where we used the break line between the very steep upper <br />slopes and gentler lower slopes. The reclaimed slope rate <br />is shown on the revised map as 2:1 and the green area is <br />where revegetation will be necessary. <br />3. We apologize for the confusion created by showing a pond on <br />the map. This area is a shallow depression where storm <br />water collects after heavy rain or during snow melt in the <br />spring. We have removed the pond from the Reclamation Map <br />