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PERMFILE122542
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PERMFILE122542
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Entry Properties
Last modified
8/24/2016 10:20:32 PM
Creation date
11/25/2007 10:31:52 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980003
IBM Index Class Name
Permit File
Doc Date
1/13/2000
Section_Exhibit Name
1996 Rule 2.05 Operations and Reclamation Plans
Media Type
D
Archive
No
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Rule 2.0.5 <br />• 2.05 OPERATIONS AND RECLAMATION PLANS <br />It is important to note that much of the initial mine development occurred prior to promulgation of the <br />Rules and Regulations of the MLRB Eor Coal Mining and prior to submittal of the originalpemJit appG'cation. <br />It is also significant that after mining began, full development plans and production potential were never <br />realized. Consequently the size of the mining operations and life-of--mine were significantly reduced from <br />mine plans described in the original permit application. Of the estimated 6.75 million tons of reserves at <br />H-G, approximately 4.2 million tons were removed over the shortened mine life. The intent of the <br />following discussion is to brie Ely summarize the actual mining that occurred and describe in some detail <br />the reclamation operations. <br />2.05.3 Operations Plan <br />In March 1978 the initial phase of mine development began which included; 1) the construction of the <br />coal handling train load out facilities, subsequently transferred to Hayden Gulch Terminal Inc., located <br />approximately 2 miles south of Hayden, and 2) the construction of the mine support facilities adjacent to <br />the now reclaimed pit area. The construction phase ended in June 1978 and affected approximately 38 <br />acres at the mine azea. Map 1 (See Exhibits, map pocket) shows pre-reclamation mine facilities and <br />locations. <br />The fast phase of mining, which also occurred prior to submittal of the original mine pemvt application, <br />was the topsoil removal stage of the Block B Mine azea. This phase involved the removal of topsoil from <br />the initial mine cut, and from portions of the permanent spoil pile area in Block B beginning in August <br />1978 and ending in June 1979. Approximately 119 acres were affected during this phase. In December <br />• 1978, the thud phase of mining activities began. This phase, referred to as the Block B development <br />phase, involved the excavation of overburden from the pit area, and its disposal into a permanent <br />overburden dump. The final phase of Block B mining began in 1982 and continued until mining under <br />this permit was terminated in 1986. Approximately 68 acres of land were affected during this period. <br />Overburden was hauled directly from the advancing mine face and backftlled into the previously mined <br />cut. <br />The Hayden Gulch Mine operated as a typical multiple seam open pit coal mine. A fleet of 32 cubic yazd <br />capacity scrapers, a hydraulic excavator, and SO ton capacity tracks were used to excavate both the <br />overburden and interburden in a two stage development sequence. The irntial stage involved the open pit <br />mining of the reserves at the northern limit of the mine and served the purpose ofpre-stopping abox-cut <br />as in a typical dragline operation. The initial excavation was made so that the mine could begin a <br />continuous backfilling sequence, which was the second stage of development. The backfilling sequence <br />involved removal of waste materials in 200 foot wide cuts, and directly placing the material back into the <br />previously mined cut. This method allowed for restoration of the mined azea in as short a period of time <br />as possible and mirtirnized the azea of major disturbance. Using this method, the mine progressed in a <br />southerly direction with concurrent reclamation opuations. <br />J <br />2.05-1 Revised - 06/01 <br />
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