2025-04-22_REVISION - M1979045 - Laserfiche WebLink

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EXHIBIT E RECLAMATION PLAN AND TIMETABLE AMENDMENT 02 This amendment will cover five (5) changes : first, the boundary of the mine will be amended to more accurately reflect the boundary of the current clay and sandstone mining; second, the final reclamation plan will be changed to include the preferred end use option of developed water storage surrounded by rangeland; the third is to allow mining and processing of the sandstone along the west side of the clay deposit and miscellaneous rock and cap rock associated with the clay deposit; the fourth is to include a composting operation; and the last is to finalize completion of the ditch relocation anticipated in the 1984 Amendment. The first, second, third, and fifth items are addressed in this reclamation plan. The methods described and approved in the original reclamation plan as well as the 1984 Amendment will remain unchanged unless discussed in this text . The following text is a combination of the 1979 original permit and 1984 amendment exhibits edited to cover current conditions from this time forward. The plan has been revised to reflect the proposed changes, current methods of reclamation, and practices that have changed since the original permit application in 1979 and the first amendment in 1984 . RECLAMATION PLAN In the original permit and in the 1984 Amendment, the site was designated as part of the buffer zone around the Department of Energy' s old Rocky Flats Plant, with its end use being habitat for non-critical wildlife. With this amendment, the site will be reclaimed as either the originally planned end use of non- critical wildlife habitat, or as the now preferred end use of Developed Water Storage surrounded by rangeland. Both end uses are compatible with the Rocky Flats National Wildlife Refuge. The excavated area resulting from the mining operation will make an ideal reservoir that is needed in the Denver Metro area. Water storage is essential to supplying water to businesses and residents year-round. Colorado experiences the majority of snow runoff in the spring, and therefore this runoff must be captured and stored for use year-round. There are several other reservoirs in the Rocky Flats area currently, including the Francis Smart Reservoir one mile south of the pit, Welton Reservoir 3 miles southeast, Standley Lake 5 miles southeast, and the Great Western Reservoir 3 miles northeast . The material to be used to rebuild Lakewood Brick and Tile CO 15 Church Pit— M-1979-045 Amendment 02 April 16, 2025