2022-03-21_PERMIT FILE - M2022012

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EXHIBIT C Rule 6.3.3 Mining Plan (a) Commencement and Duration of Gravel Pit Operation: The Extraction Site was previously part of Permit No. M-1987-013 (Burton Pit), a 112(c)permit which covered 13.44 acres and was located on two separate properties, Burton Farms LLLP on the south and Rio Grande Canal Water Users Association on the north. The Burton portion contained approximately 9.99 acres and the Rio Grande portion covered approximately 3.44 acres. This application will re-permit the 9.99 acre Burton Property under a new 110(c)permit while leaving the remaining 3.44 acre area under the existing permit, M-1987-013. Upon approval of this application, the Burton property will be released from Permit M-1987-013 via an acreage and surety release request. This location appears to have been a historically mined site and by the time Permit M-1987-013 was issued, it is surmised that significant mining had already occurred at this location. The location and surrounding topography suggest that the mining location was a small butte or basalt dike that contained very competent and hard rock. At this point in time, the crown of the butte has been mined out to a depth of approximately 40 feet leaving a crater type structure radiating out from the center point of the old butte and what is now the current pit floor. Beginning at the pit floor and heading east and south, the elevation remains relatively constant and daylights out to the proposed permit boundary except for the various raw product stockpiles,product stockpiles and topsoil or growth medium stockpiles that are located in various locations along the east and south sides of the permit area. Going North and West from the pit floor is a highwall (approximately 40 feet high) covered with loose rubblized material from the most recent blasts used to dislodge the solid rock. Of particular note is the location of the highwall along the north side which straddles the property boundary. The land on the south side of this boundary is owned by Burton Farms and the north side is owned by the Rio Grande Irrigation District, The operators of both sites have agreed to work together across this common boundary to reduce this highwall to a 3H:1 V or flatter slope in order to facilitate proper reclamation of the site. It should be noted that topsoil is very limited on this site and due to the historic mining, which occurred pre-law, little to no growth medium was salvaged for use during reclamation. No mining operations are currently occurring at the Extraction Site until Applicant has obtained all necessary permits. The mining operations will commence upon receipt of approval from the Division of Reclamation, Mining, and Safety and receipt of other necessary permits. As gravel excavation and processing will be seasonal,this operation is intended to be an intermittent operation and used for less than one hundred and eighty days per year pursuant to the provisions of C.R.S. § 34-32.5-103(l 1)(b). The operation will last approximately 10 years from commencement. (b) Topsoil replacement depth: Burton Farms LLLP Page 1 of 5 Construction Materials Limited Impact(110(c))Operation Reclamation Permit Application Form