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(Page 3) MINE ID # OR PROSPECTING ID # M-1977-208 INSPECTION DATE 6J24/04 INSPECTOR'S INITIALS ESC A diagram of the process water is as follows: ~" CeoPinr~ ProcaaFi~ CXA C p~~- ~0 ; / ~ isso~ 4s% M~`ar+t~ t1~a-~ 5. ---,41(r~ tA~ t~.~ Sba"F + According to CEMEX, 1 acre of water/day is consumed in the spray tower process. Approximately 15,000 tons of CKD/year is sold as a binder and used in the construction of concrete blocks. The remaining CKD is disposed in the C-Pit, sprinkled with water and capped with a clay layer to keep down the dust. Approximately 1-2 acres of CxD is exposed at any given time. The A-Pit area was inspected to determine if it is a suitable location for the down gradient sampling location. Two submerged pumps extract water from the A-Pit to feed the sprinklers for CKD dust suppression. The 2,500-acre pit is fed by ditch water and is located above a thick layer of shale. The Division noted fractures in the pit walls at the A and C Pits, indicating that there may be hydrologic communication between the pits. The fractures on the A-Pit trend to the northeast, east and northwest. The fractures were considerable, but not heavy. At this point in time, it appears that the A-Pit is a good compliance point due to the fracturing that may hydrological connect the A and C pits. As a result of the meeting and inspection, CEMEX will perform the following; 1. Monitor the A and C Pits weekly for the parameters established under the permit for 2 months to determine if there is a change in the selenium concentration. 2. Consult with a wildlife biologist to determine the impacts to wildlife as a result of the configuration and selenium concentration of the C-Pit. 3. Provide a groundwater response plan to the Division by Su1y 26, 2004. Reclaimed Areas The Division inspected the reclaimed areas of the Lyons Quarry to determine if has met the standards of the approved permit. The bulk of the reclamation plan has not changed since the permit was submitted in 1977 by Martin Marietta. A technical revision was submitted in 1980 changing the reclamation plan of the E and F pits. A copy of the original 1977 plan and the 1980 technical revision are attached for reference. Mining is complete at the Lyons Quarry. The site remains active because of the processing Of limE:stone from the adjacent Dowe Flats mine (Permit M-1993-041). The Swede and Government Ditches have been relocated as a result of mining, and this is depicted on the 1977 RE:clamation Plan Map (dated September 14, 1977). Pit A is to be reclaimed to a 75 acre lake and may be used for recreation and possibly residential. The area around the lake is to be reclaimed with 18" of overburden and 4°-6" of topsoil. The site will be reclaimed to dryland pasture. The existing configuration is different than the approved plan. In addition, CEMEX has left a highwall on the south and southeast side of the pit. The reclamation plan states, "All slopes are less than 2 horizontal to 1 vertical. There will be no proposed swimming areas, and the lakes will have 3 ;aorizontal to 1 vertical slopes below the water unless we ask for a change from the Board." CEMEX will need to reclaim the slopes in accordance with the approved reclamation plan, o:~ revise the reclamation plan to a different configuration. The revised plan will need to meet the requirements of Rule 3.1.5 of the Construction Materials Rules and Regulat'~.ons including a stability analysis if highwalls are to remain. Pits B a~.nd D have been reclaimed to dryland pasture and irrigated pasture. Vegetation is well established on the reclaimed elopes. A road is located at the base of these pits. If the road is to remain in place as a component of the post mining land use, it must be reflected in the reclamation plan. CEMEX will need to revise the permit accordingly, or reclaim the roads to be consistent with the approved plan.