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equipment washing, and non-potable usage at the facilities office and bathhouse. <br />Pumpage from the H-G Shallow Well No. 1 will not impact any other well completed <br />in the alluvium along the Yampa River. Impacts to water rights in the vicinity of <br />Loadout facility are discussed in Tab 15, Probable Hydrologic Consequences, and <br />have been found to be negligible. HGTI will replace the water supply of any owner <br />of a water right that is significantly affected by operations of the Loadout <br />facility. <br />Alluvial Valley Floors <br />An alluvial valley floor (AVF) analysis encompassing all of the Dry Creek drainage <br />above and below the loadout was performed by Keamme rer Ecological Consultants <br />(Keammerer) and Golder Associates, Inc. (Golder) during the late summer and fall <br />of 1990 for Peabody Western Coal Company, a corporate affiliate of HGTI. The <br />study included the use of color aerial photographs, false color infrared <br />photographs, USGS surficial geology maps and extensive field investigations. The <br />AVF study concluded that there were some irrigated fields updrainage from the <br />Loadout facility in Sections 22 and 28. The locations of the irrigated fields are <br />shown on Exhibit 14-1, Alluvial Valley Floors. Exhibit 14-1 was created using <br />geology, land use and irrigation information developed by Keammerer and Golder <br />that is contained in the Seneca Coal Company~a Seneca LI-W Mine permit application <br />package. None of the irrigated fields identified in the Seneca II-W Mine permit <br />are within the Loadout permit boundary. <br />Keammerer and Golder also identified an irrigated grass hay field in the SW1/4 of <br />Section 10, downstream of the permit boundary. According to the study, flood <br />irrigation water is diverted from both the Walker Ditch and Dry Creek to irrigate <br />this field. This field is shown on Exhibit 14-1. <br />A discussion of the Seneca II-W study and the findings, as they pertain to the <br />Loadout, are presented in Attachment 19-3, AVF Demonstration for Hayden Gulch <br />Loadout. <br />There are also irrigated grass hay fields in the E1/2 of Section 10 where the rail <br />spur leaves the UP mainline and crosses Highway 40. The fields, which are within <br />and adjacent to the permit boundary on both sides of Highway 40, are irrigated <br />TR-07 S Revised 03/06 <br />