2012-11-21_REPORT - M2007014 (2)

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Permit Date: December 6, 2007 PennitNo.: M-2007-014 The following additional stipulations and conditions form an integral part of the foregoing permit: Stipulation No. Description 1) 2) MINED LAND RECLAMATION BOARD COLOBJtDO DEPARTMENT OF NATURAL RESOURCES 1 RONALD W. CATTANY Division Director ..-(.z... RIDER TO MINING PERMIT During each year when development and/or production blasting occurs in the quarry, the Operator shall include a geotechnical section into the annual reclamation report providing updated geotechnical observations and measurements and associated recommendations for quarry development to provide a safe highwall during operations and a long term stable highwall at the time of reclamation. In particular, the geotechnical observations and measurements will include evaluation of the presence or absence of day filling in geologic structures that dip out of the quarry face, and will evaluate any changes in orientation, spacing, and roughness of geologic structures observed relative to the observations documented in the initial report. Location, date, and time of blast; Name, signature, and license number of blaster -in- charge; Identification, direction and distance, in feet, from the nearest blast hole to the nearest potentially affected structure either. i. not located in the permit area; or ii. not owned nor leased by the person who conducts the mining operations; Type of material blasted; Sketches of the blast pattern including number of holes, burden, spacing, and delay pattern. Sketches shall also show decking, if holes are decked to achieve different delay times within a hole; Diameter and depth of holes; Types of explosives used; Total weight of explosives used per hole and maximum weight of explosives used per 8-millisecond period; Initiation system; Type and length of stemming; Mats or other protections used; Type of delay detonator and delay periods used; Number of persons in the blasting crew; and Seismographic records, where required, including: I Type of instrument, sensitivity, and the calibration signal of the gain setting or certification of annual calibration; ii. Exact location of instrument and the date, time and its distance from the blast; ill. Name of the person and firm taking the reading; iv. Name of the person and firm analyzing the seismographic record; v. The vibration level recorded.