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2015-10-06_PERMIT FILE - C1981019A (3)
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2015-10-06_PERMIT FILE - C1981019A (3)
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Last modified
9/27/2016 11:02:24 AM
Creation date
1/6/2016 11:04:12 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981019A
IBM Index Class Name
Permit File
Doc Date
10/6/2015
Doc Name
Performance Standards
Section_Exhibit Name
Volume 15 Rule 4
Media Type
D
Archive
Yes
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RULE 4 PERFORMANCE STANDARDS <br />Reconditioning <br />Topsoil quality at Colowyo is excellent in terms of providing a suitable plant growth medium <br />capable of supporting the approved post -mining land use and the revegetation requirements of <br />Section 4.15. Soil testing has not indicated any deficiencies. Refer to Volume 3, Exhibit 10, <br />Establishment of Native Shrubs on Disturbed Lands in the Mountain Shrub Vegetation Type. <br />This study was conducted on the Colowyo Mine July 1975 through December 1979. Colowyo has <br />the option to apply 50-70 pounds of phosphorus per acre to all safely accessible reclaimed mine <br />areas prior to chiseling and seeding. <br />4.07 SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS <br />Drill holes and underground openings will be sealed in accordance with the procedures outlined in the <br />previously -approved permit document. <br />4.08 USE OF EXPLOSIVES <br />Explosives will be used for blasting in accordance with the procedures and specifications presented in the <br />previously -approved permit document. Map 26B presents distances to various structures of possible <br />concern surrounding the mining area. Only Section 4.08.2 has changed from the original permit; see the <br />original permit for Sections 4.08.1 and 4.08.3 through 4.08.6. <br />4.08.2 Pre -Blast Survey <br />In accordance with Rule 4.08.2(1), pre -blast surveys will be offered to owners of all structures within <br />one-half mile of the permit area. Pre -blast surveys will be conducted on residential structures located <br />near the Collom permit expansion area, various associated groundwater supply wells, power pole <br />foundations located near the permit expansion area, and a pipeline. Copies of completed assessments will <br />be included in Exhibit 14, Item 7 after the structure assessments have been completed. All blasting within <br />the Collom area will be conducted in accordance with the blasting parameter described in Volume 1, <br />Section 2.05, Blasting. <br />Blasting Records <br />Colowyo will keep a record of each individual blast by utilizing report formats shown in Volume 1, <br />Figure 2.05-2 - Blasting Report (coal and overburden), and Volume 1, Figure 2.05-3 — Colowyo <br />Chargeweight Sheet (overburden only). <br />Pre -Blasting Survey <br />In accordance with Rule 4.08.2, written notification will be provided to all residents and/or owner of <br />dwellings or other structures that are located within one-half mile of the Collom permit expansion area. <br />Copies of the letters will be included as an exhibit in the permit documentation under Exhibit 14, Item 8. <br />Pre -Blasting Surveys specific to the Collom permit expansion area will be conducted prior to <br />commencement of mine operations at the Collom permit expansion area. Due to the proximity of the <br />permit expansion area to the existing Colowyo permit area, many of these residents and owners may <br />remain unchanged. As pre-blasing surveys are completed, a list of individual owners, subject to blast <br />disturbance, will continue to develop. Preliminarily identified residents that may experience blasting <br />related may found in Exhibit 14, Item 8. <br />Collom — Rule 4, Page 25 Revision Date: 9/28/11 <br />Revision No.: PR -03 <br />
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