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Ms. Kerry Sullivan April 8, 1992 Page 14 C197 1 believe the word capacity is being used incorrectly. The filling of the lake with water was the result of a L_50-100 year flood event. Page 4.7 - 9 For the past several years,the basin of the Tracy Lakes have not been farmed. C198 For the past three years,the basin of the Tracy Lakes have not been farmed. Page 4.7 - 11 The river's passage along the undisturbed riparian frontage of the project site provides viewers C199 with one of the last glimpses of what the majority of the foothill stream riparian zones once looked like in San Joaquin County. That is, an extensive, wide riparian woodland complex, unlike the narrow swath of riparian trees and bushes commonly seen today along the river's course in the County. Actually, the condition exists all along the Mokelumne River from Woodbridge to the Delta and above Lodi to Commanche. Page 4.7 - 14 The Department of Fish and Game currently recommends large buffer zones around any nest C200 site because of the hawk's reaction to humans. There are no known current nest sites, but there is no shortage of potential nest sites which will be selected by the birds consistent with their requirements. Page 4.7 - 14 The actual home range area over which foraging occurs also varies greatly with land use. Studies recorded maximum foraging range in Wyoming as varying between 180 and 1,056 acres (Craighead and Craighead, 1956). In Central California, a range has been recorded from 30 to 16,000 acres (Estep, 1989). Studies have also found a direct correlation between foraging home ` range and cultivated land (Bechard, 1982). Where the cultivated land occupied more of the C201 acreage in an area, the foraging area was consistently large. Perhaps the most pertinent current estimate of foraging requirements are those given in the 1990 California Department of Fish and Game (CDFG) Mitigation Guidelines for Swainson's Hawk in the Central Valley of California (Appendix E). This document states that the minimum acreage needed to support a nesting pair is 1,200 acres and that all acreage within a 10-mile radius of an active nest is considered potential foraging habitat. By not cultivating this land, we should be preserving foraging grounds. By adding water to the lakes,we will undoubtedly increase rodent population. This ten-mile radius for potential foraging habitat equates to approximately 314 square miles or an area that is 230 times as large as Buckeye Ranch. The approximate area covered by the lands between Stockton and Sacramento and Interstate 5 to Highway 99. 111-129