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.r- 3 Transit Mix Concrete Co. again for the successful completion of the blast. The objection letters indicated that Little Turkey Creek Road has historically been impassable for as many as 8 days at a time due to flooding. Any planned or unplanned closures related to blasting operations will be significantly shorter in duration than closures due to flooding. Details of the blasting schedule notifications and handling of misfires are included in the revised Blasting Plan included in Exhibit D of the July 14, 2016 permit submittal. A discussion on potential impacts to groundwater resources is included below in the Groundwater/Water Supply section. Transit Mix will offer complimentary pre-blast surveys to all landowners within one-half (1/2) mile of the permitted disturbance boundary prior to the commencement of any blasting. This distance follows protocols established by the U.S. Office of Surface Mining, Reclamation, and Enforcement (OSMRE, 1987). These surveys will include photographic and video documenting the condition of an existing structure. Structures, that will be considered in the pre-blast survey, include houses or any other dwelling, garages, barns, outbuildings, cisterns, septic fields, and wells, etc. Wells will be evaluated for water quality and flowrate. A copy of all information collected during the survey will be provided to CDRMS and the landowner for their records. The Pre-Blast Survey Plan is included in Exhibit D of the July 14, 2016 permit submittal. All blasts at the Hitch Rack Ranch Quarry will be monitored with seismic instruments, microphones, and video recorded (weather dependent). Seismic monitoring will include three separate instruments located at the west, east, and either north or south property line to create a triangle with the blast in the middle of the triangle. Microphones will measure changes in air over pressure and noise. All monitoring will be performed by a blasting consulting firm, and records for all blasts will be maintained onsite. Details of the blast monitoring equipment and procedures are included in the revised Blasting Plan included in Exhibit D of the July 14, 2016 permit submittal. References: U.S. Office of Surface Mining, Reclamation, and Enforcement, 1987. OSMRE Blasting Guidance Manual. U.S. Department of the Interior, Office of Surface Mining, Reclamation, and Enforcement, Directives System. January 28, 1987. Landslides/Rock Falls Objector Comment: Hillsides within and near the proposed quarry area are unstable, with rocks frequently dislodged from the hillside during heavy rains. Blasting operations or other quarry activity may further destabilize the hillsides causing more frequent or more severe landslides. Even if the vibrations from the blasting do not directly trigger rock falls, the vibrations may Hitch Rack Ranch Quarry Permit Application M-2016-010 Responses to Objection Letters July 28, 2016 2