2019-01-09_PERMIT FILE - M2019001 (3)

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Carr includes approximately 30 to 40 semi-rural residential home lots north of the site. In addition to the Connell Carr Pit north of Carr, there is another permitted aggregate mining property (M-1988-048) and railroad load-out yard approximately one mile north of the site. Items owned by the applicant or property owner located within the proposed permit area such as un-improved roads, fences, water wells and associated pumps, and other structures may be removed or relocated during mining and reclamation. There are no established oil and gas wells, tank batteries, or other associated facilities located on the property. The interior of the property does not contain structures, easements, or right-of-ways not owned by the applicant or property owner. Several utility structures and associated easements and right-of-ways are located on the edges of the property or immediately adjacent to the proposed permit boundary including Nunn Telephone Company communication lines, Weld County road right-of-ways, and Poudre Valley REA power lines (see Exhibit C-1, Existing Conditions Map). None of the easements, right-of- ways, or associated structures are expected to be negatively affected by mining or reclamation operations. Nature of Deposit to be Mined The proposed permit area is located where the northern edge of the Colorado Piedmont transitions up to the High Plains of southern Wyoming. The northwestern most boundary of the historic Lone Tree Creek basin originates in the Laramie Range of the Rocky Mountains and drains southeast across the relatively flat High Plains and down through the gently rolling topography of the Colorado Piedmont. Aggregate materials within the proposed permit area are composed of Pliocene and Pleistocene terrace deposits associated with the historic Lone Tree Creek drainage system. The terrace deposits within the proposed permit area extend from the surface or near-surface to a variable depth of approximately 10 feet below the ground surface. Deposition was most likely created by streams that had been rejuvenated as a result of uplift at the close of the Tertiary period and increased water supply during the Pleistocene epoch. The under-lying Tertiary sedimentary rocks that include consolidated sand and gravel conglomerates were eroded, and the process of cutting and filling of channels was so widespread that gravel and sand were deposited in sheet-like beds. The principal streams eroded into the bedrock, cutting and building terraces along the channels. More recent streams, such as Lone Tree Creek one to two miles east of the proposed permit area, have cut through the highly erodible over-lying unconsolidated material in most areas and do not generally have associated alluvial deposition. Traditional organic topsoil on most of the site is thin or non-existent, varying from 0 to 6 inches in depth. Most of the soils are undistinguishable from the general overburden material that consists of shallow, well drained loams. Over most of the identified sand and gravel deposit is a loamy, wind-mixed veneer layer of soil/overburden material varying from 0 to near 2 feet in depth. The soil/overburden material likely developed from alluvial and eolian deposits of clay, silts, and sands. Over time, erosive forces of wind and water have influenced the soils on the site and mobile soil/overburden particles, such as silt and clay, have eroded from higher topographic positions and have been re-deposited in lower areas. The aggregate deposits and loamy soil/overburden material are underlain by a variable pattern of unconsolidated shale and sandstone parent materials. Lazy Two Pit DRMS 112 Permit Application Page 5