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B. Surface Water Description <br /> The permit area is dissected by three major drainages : Newlin <br /> Creek (a perennial stream) , Magpie Creek and Second Alkali <br /> Creek (both of which are ephemeral streams) . The streams flow <br /> to the northwest of the permit area where they empty into <br /> Hardscrabble and Coal Creeks . Hardscrabble Creek is an <br /> ephemeral stream while Coal Creek is perennial . These two <br /> drainages discharge into the Arkansas River, which is the <br /> major perennial drainage in the area. <br /> The base flow of Newlin Creek is diverted by the City of <br /> Florence upstream from the Southfield permit area. This water <br /> is carried across the permit area by a 12" pipeline. EFCI has <br /> monitored both the Newlin Creek streambed and the Florence <br /> pipeline for subsidence since 1984 . In 1999 minor subsidence <br /> occurred. The amount of subsidence measured at the eight <br /> subsidence monuments ranged from 0 . 06-1 . 66 feet. The maximum <br /> subsidence of 3 . 42 feet was still within the maximum expected <br /> and worst-case expected values of 2 . 79 and 4 . 36 feet, <br /> respectively. No subsidence has been reported at any of these <br /> monuments since that report . <br /> The Magpie Creek drainage was diverted around the mine <br /> facilities area by Dorchester in 1982 . The drainage and <br /> diversion are discussed in the permit in Exhibit 19, "Drainage <br /> and Sediment Control" . With the approval of Technical <br /> Revision 15, December 1993 , designs for the permanent <br /> retention of Magpie Creek were incorporated into the permit . <br /> Monitoring of Magpie Creek to date has consisted of flow <br /> measurements upstream and downstream on sampling days once <br /> each quarter. Peak flows in Magpie Creek need to be measured <br /> to provide data for restabilization of the creek for permanent <br /> diversion status . Therefore, the following stipulation is <br /> included here. <br /> Stipulation No . 14 <br /> ALL PEAK FLOWS SHALL BE MEASURED IN MAGPIE CREEK AT THE <br /> CURRENT MONITORING STATION. DATA ACQUIRED FROM THIS <br /> MONITORING SHALL BE SUBMITTED QUARTERLY AND INCLUDED IN THE <br /> ANNUAL HYDROLOGY REPORTS FOR THE MINE. <br /> Second Alkali Creek is an ephemeral drainage that crosses the <br /> northern end of permit area. Since there will be no surface <br /> Southfield Mine Permit Renewal 03 <br /> 44 <br />