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• July 1993 -33- 923-2515 <br />gray (2-SYR 6/2 dry) silty clay 26 inches thick. The water table, at a depth of 40-60 inches, <br />is high enough to saturate at least a portion of the soil profile in the effective roofing depth (30- <br />40 inches) of the plants (SCS 1991). Additionally, during the October field visit the stream <br />channel had ponded water and saturated soils only 24 inches below the adjacent field, further <br />suggesting that the field is subirrigated. According to the property owner (Hockett 1993), the <br />water table is within 12 inches of the surface at the beginning of the growing season and drops <br />to 3-3'fx feet by the end of the season. <br />It is possible that the summer fallowing of this field results in a rise in the ground water levels, <br />enhancing the subimgation. However, elevation of the ground water in this field is not the <br />intent of the summer fallowing. In fact, Hockett (1993) states that the high water table and <br />alkali in the soils reduces the production of the field 10-15%. <br />5.4.5 Potential Flood Irrigated Areas <br />Soils: Neither the Spicerton fine sandy loam or the Zoltay Variant loam present along the <br />Scotchmans Gulch stream channel are irrigable. <br />Water Availability and Quality: There is no source of water for flood irrigation along <br />Scotchmans Gulch. There is not sufficient flow in this intermittent stream for flood irrigation <br />and it would not be cost effective to construct an impoundment even if an adequate volume of <br />water was present. If the surface water quality is similaz to the ground water, it is of a mazginal <br />value for irrigation. <br />Summary: There are no potential flood irrigation azeas along Scotchmans Draw because there <br />are no irrigable soils and no source of water. <br /> <br />Golder Associates <br />