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Whirlwind Mine Groundwater Characterization Report <br /> approximately 100 ft (EFR, 2008a), the footwall being to the south. No lateral displacement has <br /> been mentioned by previous investigators. <br /> The axis of the Sagers Wash Syncline trends southeast across the northern portion of Beaver <br /> Mesa and near the mouth of Lumsden Canyon. Rocks on the northeast side of the syncline axis <br /> are shown to dip slightly to the southwest(Eicher and others, 1957) indicated a somewhat open <br /> and broad fold. No indications of broader, smaller faults or folds have been discussed in the <br /> mining literature. <br /> 4.0 HYDROLOGY <br /> 4.1 Surface Hydrology <br /> As mentioned previously in Section 2.0- Physiographic Setting, the Whirlwind Mine area is <br /> located on the east slope of a high desert mesa on the Colorado— Utah border. Beaver Mesa <br /> forms a relatively flat highland that gently slopes to the west into Utah. <br /> Drainage from the eastern side of the mesa is conveyed by two main drainages that form deep, <br /> relatively narrow canyons incised into other Mesozoic sedimentary rocks. Lumsden Canyon and <br /> John Brown Canyon originate on the eastern edge of Beaver Mesa and drain east to the <br /> Dolores River. The two canyons are separated by a ridge extending east from Beaver Mesa. <br /> Topography underlying the Whirlwind Mine, including the Packrat Mine and several other mines <br /> in the vicinity drain into upper Lumsden Canyon, which branches into several tributaries in the <br /> vicinity of the mines. <br /> Lumsden Canyon and John Brown Canyon are ephemeral drainages. WWL conducted <br /> reconnaissance in Lumsden Canyon in December 2008 from its mouth to the mine sites. The <br /> reconnaissance showed the canyon streambed was dry with exception of four reaches(see <br /> Figure 5). The following text, as excerpted from the WWL report, describes the findings of the <br /> reconnaissance: <br /> No new springs or seeps were identified in the reconnaissance that were not directly related to <br /> the streambed. The uppermost reach first showed water at an elevation of approximately <br /> 7,070 ft AMSL. This flow appears to consist of runoff and subflow from DP Spring. Surface flow <br /> Western Water S Land, Inc. 11 <br />