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Page 3 TETRA TECH RMC Mr. Berhan Keffelew July 27, 2004 D) During the pre-operational inspection, the operator agreed to have the slurry wall design approved by SEO and have it in place prior to any mining activity taking place and post the 20% warranty to DMG. The slurry wall will be designed consistent with SEO standards and it will be installed prior to mining on the portion of the site that is west of the Fulton Ditch. Preliminary specifications are attached. Aggregate Industries will bond 20% per DMG standards. Please see the cost estimate included in item VIII below. IV) EXHIBIT "E"RECLAMATION PLAN A) It is the understanding of the Division that the post mining land use for the proposed area is a lined a reservoir and that the substitute water supply plan will be approved and a copy of the approval submitted to the Division before any water is exposed in the proposed permit area. Your understanding is correct. B) Under the soil information, bore holes indicated a range between 1 feet to 10 feet, but you only committed to placing 6 inches. The Division request that you commit to placing a minimum of I2 inches of overburden/ top soil over the entire 28.1 acres. The operator will place a minimum of 12 inches of overburden top soil over the entire 28.1 acres of disturbance in Phase 3. V) EXHIBIT "F"ADEQUATE Noted VI) EXHIBIT "G' WATER INFORMATION A) Since the 100 year flood plain is with in the proposed permit area, the operator must be in compliance with all the requirements of Urban Flood Drainage Control. The operator will be in compliance with the Urban Drainage and Flood Control District Requirements. The applicant has had apre-application meeting with Urban Drainage and Flood Control District and Adams County. A Flood Plain Use application has been submitted to the County for this project.