2011-08-29_REVISION - M1986015 (11)

Home Browse Search

• • 70 (loc. of home.) 70 (loc. of home.) 139279 Joan Wilcher & Rudy Sabec Joan Wilcher & Rudy Sabec 95156 Robert Harvey 95157 Robert Harvey 14093RR Robert Harvey 21988FR P T Elliot 112WCB W. M. White 275WCB Buel Lowder 108WCB W. M. White TMOP Monitoring Well Nos. MW -13, MW -13Obs and MW -14 are located within the Phase 7 mining area. Monthly water level measurements have been collected in these wells since January 2002 and the water levels have not been affected by Phase I or Phase II mining, as shown in the hydrograph presented in Figure G-4. TMOP will continue to monitor water levels in these wells during Phase 7 mining. In addition, TMOP is installing four monitoring wells outside the Phase 7 mining area, three of which are replacing existing wells. TMOP will measure water levels in these wells and will coordinate with well owners in areas that may be affected by Phase 7 mining. Water level data will continue to be tracked in a monitoring well database to identify water level changes resulting from the Phase 7 mining area, which will function as an early warning system if detrimental water level changes occur and will allow TMOP to implement solutions to isolated water level changes and resulting impacts to wells that may occur near the Phase 7 area. (d) Projected Water Requirements The water use requirements for the mining operation are divided into two categories: physical demand for process water and depletion to the stream system. As described in Exhibit 4, the Phase 7 gravel pit will be dewatered during the mining process at a rate of approximately 4,100 gallons per minute (gpm) and 6,600 acre -feet per year (af/yr). Some of the water that is pumped out of the pit will be used to process the gravel and the rest will return directly to the Arkansas River. The process water will be used primarily for washing and dust control and will amount to 5 Permitted stock water use. Domestic Use. Permitted stock water use; well not located in field. Permitted other use; well not located in field. Permitted irrigation; well not located in field. Permitted domestic use; well not located in field. Permitted as other use; well not located in field. Permitted as other use; well not located in field. Permitted as other use; well not located in field.