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REP03066
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Entry Properties
Last modified
8/24/2016 11:33:56 PM
Creation date
11/26/2007 10:25:06 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008
IBM Index Class Name
Report
Doc Date
2/12/2007
Doc Name
2006 Annual Reclamation Report
From
Western Fuels-Colorado, LLC
To
DRMs
Permit Index Doc Type
Annual Reclamation Report
Media Type
D
Archive
No
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2006 ANNUAL RECLAMATION REPORT <br />I • NH1 <br />Farming by adjacent landowners continued as in past years on the 6.4 ac field in the NW <br />portion of the NH1 Permit Area. The landowner was contacted and stated that a 50/50 mix <br />of fertilizers 18-46-0 and 34-0-0 (UREA) were applied at a rate of 150 Ibs/acre. One cutting <br />was harvested for approximately 11 tons (3,4371bs/acre) of grasshay. Western Fuels <br />applied UREA fertilizer to a 45.65 acres parcel at the rate of 74 Ibs/acre. Exhibit 2006-1 <br />shows rates and locations of the fertilizer applications. Exhibit 2006-1 denotes pasture <br />yields where applicable. For reference, Exhibit 2006-2 shows the pre-1993 disturbance at <br />NH1. Please note that the NH1 boundary changed in 2001 as a result of MR-52. <br />NH2 <br />Existing Disturbance <br />During 2006, 38.6 acres of new disturbance were associated with the mining program at <br />the New Horizon 2 Mine. 22.8 acres of topsoiled land were seeded with approved seed <br />mixes. The 2006 Disturbance and Seeding Maps, Exhibit 2006-3 and 2006-4, respectively <br />show the areas either disturbed, reseeded, or both, during 2006. A total of 39.4 acres <br />were topsoiled for seeding, this is detailed in Exhibit 2006-6. <br />• Backfilling and Grading <br />During 2006, 26.6 acres (see Exhibit 2006-7) were graded at New Horizon 2. Backfill <br />grading was accomplished by backfilling the empty pit with atruck-shovel fleet and then <br />final grading with D-9 dozers and 14G grader. <br />Soil and Spoil Scarification <br />The following soil and spoil scarification techniques were used while grading the <br />reclamation area. Prior to growth media soil replacement, the final graded spoil was <br />scarified to a depth of 6 to 18 inches using ripper shanks attached behind a motor grader <br />or a dozer. This scarifying operation effectively reduced compaction, runoff, improved <br />infiltration, whilst improving rooting depths. <br />Soil and Spoil Monitoring Data <br />New Horizon Mine is required by Permit C-81-008 to monitor replaced soil and final graded <br />spoil and submit the information to the Division. Monitoring programs include verifying soil <br />replacement thickness and determining final graded spoil quality. Exhibit 2006-6 depicts <br />topsoil thickness and sample locations. Exhibit 2006-7 depicts backfill spoil sample <br />locations and shows backfill placement limits. <br />Spoil Quality <br />The spoil sampling and analysis program approved for New Horizon Mine is described in <br />Section 2.05.4(2)(d)-4 Regraded Spoil Monitoring Program of Permit C-81-008. Nine (9) <br />• topsoil samples and three (3) backfill spoil samples for 2006 were collected from within the <br />New Horizon 2 area. The soil samples were collected by a hand auger. Each backfill <br />sample site consists of two subsurface samples; one is a 0 to -2 ft interval, the other a -2ft <br />to -4 ft intervals. Sample identifiers are given the suffix A and B, respectively. <br />
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