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dryland areas, due to the increased salinity of the water in Scotchman's Gulch. There are no data available to verify this. Ground water sampled adjacent to the field had an EC of 4070 umhos/cm in 1992. Stream flow in the gulch had an EC of 4350 umhos/cm on May 19, 1995. The stream is intermittent in this area. Potential for flood irrigation does not appear plausible. The 1983 OSM "Alluvial Valley Floor Identification and Study Guidelines" (Appendix C, page C-10) includes a highlighted statement that, "Agricultural crops or rangeland must receive enough subirrigation that the community is notably more productive or more agriculturally useful when compared to dryland areas." Since the poor quality of water available for subirrigation of the grain field adjacent to Scotchman's Gulch precludes this area from being notably more productive (it appears to be less productive) than dryland portions of the same field, this area is not an alluvial valley floor. Based on the hydrologic characteristics of the ground water, there is insufficient water available to support beneficial subirrigation agricultural activities. III. Sage Creek Reservoir Site Two fields located just upstream from the former Sage Creek Reservoir dam (Sections 13 and 18) are identified in the Yoast PAP as subirrigated native wetlands and subirrigated grass hay. The native wetland area is basically the area once covered by the reservoir, which failed in 1985. This area is currently used for grazing. The grass hay field is currently being farmed for hay, and had a "For Sale" sign posted on May 19, 1995. These fields are located. in the upper reaches of Sage Creek, and therefore are not typical of alluvial valley floors with agricultural potential. However, one field (approximately 13 acres) is currently being farmed for hay, and the other larger field appears to have the potential to be put to use as a subirrigated hay field. Furthermore, during a site visit on May 19, 1995, the upper grass hay field was being flood irrigated by means of an irrigation ditch along the eastern edge of the field. Neither the ditch or the flood irrigation are mentioned in the Yoast PAP. Stream flow data near this field indicates there may not be enough surface water to support flood irrigation during later parts of the growing season.