Laserfiche WebLink
<br /> <br /> <br />Colorado Mined Land Reclamation Board 2 <br />n <br />u <br />October 3Z, Z980 <br />Additional information is supplied herein as you have requested. The stra- <br />tzun underlying the sand and gravel deposits in the pit area consists of <br />:weathered clay stone. The weathered clay stone is encountered at depths <br />of ZS to Z9 feet below the surface. (See Attaclvnent A. Rogan and <br />Olhausen, Inc. drill Zogs). <br />No. 3 Issue - Identify locations of wells zwithin or near proposed permit <br />area. <br />A Zist of wells in the vicinity of the Hakestra operations has been <br />prepared along with owner's rtcunes and locations, which can easily be <br />correlated with appropriate exhibits. (Attachment B - location of <br />water wells). <br />No. 4 Issue - Topsoil management. <br />The Soil Conservation Service office in Longmont, Colorado Tzas been <br />contacted and will be consulted in the topsoil management operation. The <br />volume of topsoil is approximated below: <br />1 <br />~ ~~ <br />^.. <br />Stage I 30,000 cubic yards <br />Stage II 38,000 cubic yards <br />Stage III 30,000 cubic yards <br />Stage IV 53,000 cubic yards <br />Proposed topsoil locations are indicated in Exhibit C for each stage of <br />mining. Topsoil from the Stage I area will be stockpiled above the Z00- <br />year floodplain along the north perimeter of the Stage II area. The <br />topsoil used to reclaim the area of Stage I will be stripped from Stage <br />II and carried directly to the Stage I site. The topsoil stockpiled <br />from Stage I will then be used to do the reclamation in the Stage II <br />area when that is completed. In this manner, no stockpiles of topsoil <br />will be located within the floodplain. Because of the area of each stage <br />lost to the small ponds there wilt be more topsoil accumulated than can <br />be spread to tits original depth; however, all topsail will be utilized <br />in the final reclamation process.~The seed to be used in the reclamation <br />process will be smoo h brome grass which will be spread at a rate of Z3 <br />pounds of pure Zive seer acre. It will be broadcast on slopes and <br />drilled on the flats. This is in accordance with the criteria prescribed <br />by the Soil Conservation Service office in Longmont. The sane mixture <br />and technique will be used on the stockpiles of topsoil which will be in <br />~' ~ !, place longer than one growing seaso~z. <br />' Stages III and IV topsoil stockpiles will be managed in a similar fashion <br />as described for Stages I and II. <br />No. 5 Issue - Topsoil management considerations within Z00-year floodplain. <br />AZZ proposed topsoil stockpile locations will be outside the Z00-year <br />floodplain; therefore, extraordinary management operations will not be <br />necessary. <br />-~ <br />