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M N TIMNATH CONNELL PIT Groundwater Dewatering/Monitoring Program: Tuttle Applegate, Inc. Job # 98-273 Date: 1 / 10/00 Five piezometers are located on the Timnath Pit property. Four additional piezometers have been installed on Mr. Louie Swift's property to the south of the Timnath Pit. The attached map shows the location and ground surface elevation of the nine monitoring wells. Connell Resources will coordinate with Terracon on the collection of groundwater depth measurements on the nine wells. Reporting of the data that is collected by Terracon will be submitted to Connell Resources and copied to Mr. Louie Swift and provided to the Division of Minerals and Geology with the annual report. The depth measurements will be completed on a monthly basis beginning in October, 1999 and will continue through the completion of Phase 5 of the mining plan. After Phase 5 is completed the wells will be monitored for groundwater levels on a quarterly basis until Connell Resources completes mining and reclamation of the site. Dewatering/Monitoring Program (by Mining Phase): Phase 1 Phase 1 dewatering: Prior to mining Phase l a temporary dewatering silt pond will be constructed (details provided below). Groundwater pumped from the Phase 1 mining will be diverted to the temporary dewatering silt pond and then to the Boxelder Ditch. Piezometer P6 will be monitored daily and if the water level drops more than 1 foot during excavation, then water will be diverted to the temporary dewatering silt pond and then to the drainage culvert under County Road 36. At the completion of Phase I mining, the west recharge pond will be constructed and will be used for recharge through the rest of mining. Phase 1 monitoring program: Piezometers will be monitored monthly with the exception of piezometer P6. Piezometer P6 will be monitored daily during the initial dewatering of Phase 1 until the dewatering program for Phase 1 has been established. Temporary Silt Pond: The temporary silt pond will be located east of Phase 1 and west of the Boxelder Ditch approximately 20 feet by 30 feet in size. The pond will be constructed at the high point between the ditch and Phase 1 to allow gravity flows to the Boxelder Ditch and to the County Road 36 culvert. If Connell determines [ha[ the temporary silt pond is not sufficiently removing silt from the water prior to discharge, a gravel filter will be installed. The filter, if needed, will be constructed with a C33 sand and graduate to a 3 inch aggregate. The filter will be constructed to a size capable of handling the flow rate from the groundwater pumping from the Phase 1 mining.