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REV88868
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REV88868
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Entry Properties
Last modified
8/25/2016 3:10:55 AM
Creation date
11/21/2007 10:46:06 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1993059
IBM Index Class Name
Revision
Doc Date
10/22/1998
Doc Name
PRELIMINARY ADEQUACY REVIEW FN M-93-059
From
DMG
To
GREG LEWISK AND ASSOCIATES
Type & Sequence
AM1
Media Type
D
Archive
No
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<br />the future, the permit application will not have to be revised again. <br />Please review the mining plan to determine exactly how many acres will be required to be disturbed at any <br />given time to effectively conduct the mining plan as outlined in this submittal and revise as necessary. <br />Also, as mentioned, Mid-Wes[ Farms may want [o consider including [he option of continuing right into <br />phase 2 out of the final lake in phase 1, as opposed to opening up a new lake with a new overburden pile. <br />Outside of clarifying the mining sequence and associated disturbances, the Division has no problems with <br />the proposed mining plan. <br />6.4.5 EXHIBIT E-Reclamation Plan <br />The reclamation plan provided with this amendment appears to sufficiently meet the requirements of the <br />act in that it returns the land to a beneficial use, albeit, a lesser one than what currently exists from an <br />agricultural production standpoint. However, the wildlife component that was included with the original <br />application appears to be intact and the conversion to rangeland should actually increase the wildlife value <br />once reclamation is completed. <br />The Colorado Division of Wildlife did submit a statement suggesting that one or two tall growing warm <br />season grasses such as switch grass or yellow Indian grass be included in the grass seed mix. The CDMG <br />concurs with this suggestion and requests that the operator revise their seed mix accordingly. Also, The <br />CDOW made other suggestions concerning the proposed shrub and tree planting that appear to be very <br />sensible and aze supported by CDMG. With respect to leaving small nesting islands in some of the larger <br />lakes or ponds, the CDMG believes that this would be a good reclamation technique and encourages the <br />Mid-Western Farms to explore ways in which this might be accomplished. One suggestion would be to <br />extend the end of the slurry return line into the middle of a lake using pontoons once the lake has been <br />backfilled to its desired surface area size. This would then create a small island in the middle of the lake <br />which may provide the nesting habitat as described in the CDOW letter. Overall, the CDOW suggestions <br />appear to be very sound and would seemingly compliment and enhance the proposed reclamation plan. <br />The main concern that CDMG has with the reclamation plan has to do with to overall timing of the mining <br />and reclamation as stated eazlier in the mining plan comments. It is very important to sequentially identify <br />the exact mining process so that it can be determined how many acres will be in what mining and/or <br />reclamation phase at any given time. Clearly pinpointing this process will of course have great bearing on <br />whether topsoil will belive-handled or stockpiled, when seeding of re-topsoiled areas can occur, the <br />overall reclamation liability, etc., etc. At this point it seems that almost the entire azea associated with each <br />phase will have to be considered disturbed to some degree until mining in that phase is completed. If this <br />is the case, the worst case reclamation liability will need to be adjusted to account for additional area that <br />will be backfilled and regraded, but need to be topsoiled and reseeded. <br />Using phase 1 as an example, the entire phase is 221.6 acres. The proposed maximum area to be disturbed <br />at any single time is 141.8 acres, including 49.2 acres of the prep planUoffice area. This means that only <br />92.60 acres of phase 1 can actually be disturbed, leaving 129 acres that is not yet disturbed or is fully <br />reclaimed. However, taking into account the concerns outlined under the Mining Plan Exhibit, much of <br />the backfilled and graded portion of the phase will not yet be topsoiled or revegetated because the dredge <br />support facilities may be set up on those areas. Using $2,000.00 dollars per acre (approximate amount to <br />topsoil and seed per acre) and applying it to the 129 acres, this would increase the raw cost of the <br />reclamation liability in phase 1 by $258,000.00 dollars. However, at some point, there probably is going <br />
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