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. gully that collects runoff from Section 23 southeast of the Loadout facilities <br />area and flows into Dry Creek just upstream of Culverts RRC-19A/198/19C (see <br />Exhibit 12-2) had TDS concentrations of 11,2000 and 8,710 mg/1. <br />The natural salt loading from saline seeps in the dryland farming areas in Section <br />22 and 23, the shallow Lewis shale underlying the valley alluvium, as well as <br />inflows £rom Stokes Gulch control the water quality in the Dry Creek. The TDS <br />changes in Dry Creek or the Dry Creek alluvial system that could be attributable <br />to Loadout operations will not be measurable at the point where water is diverted <br />for flood irrigation in Section 10. <br />Literature Cited <br />Madote, R.F., 1969, Surficial geologic map of the Meeker 30' X 60' quadrangle, <br />Garfield, Moffat, Rio Blanco and Routt Counties, Colorado. U.S. Geologic <br />Survey Miscellaneous Investigations Series, Map I-1823. <br />Seneca Coal Company, 1990. Seneca II-W Permit, Tab 16, Protection of the <br />• Hydrologic Balance. <br />L~ <br />TR-07 19-3.6 Aevised 03/06 <br />