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12. Environmental Description - Briefly describe environment of site and <br /> surrounding area. Include existing area land use, soil, vegetation, ground <br /> water elevation, surface water characteristics, average annual rainfall <br /> and other factors pertaining to environmental impacts and their mitigation <br /> and reclamation. (Use additional pages of necessary) <br /> The project area can best be described as a flood plain environment <br /> characteristic of the lower reaches of the San Joaquin River. The gentle <br /> gradient of this section of the river has created significant sedimentation <br /> within the primary river channel which, accounts in part for broad areas <br /> of flooding within the existing river levees. The immediate area of the <br /> project is inundated on an annual basis by flood water which have tended <br /> to strip much of the larger vegetation from the site and depositing large <br /> accumulations of river sediment in the form of sand. While all of the <br /> immediate surrounding land area is devoted to agriculture, the project site <br /> apparently lacks sufficient nutrients to support agriculture. <br /> Precipitation in the area averages from 7.00 to 9.50 inches per year. <br /> Groundwater in the area is the result of recharge from the San Joaquin <br /> River and is approximately 20 feet below the lowest proposed point of <br /> excavation on the project. Surface water is relegated to the San Joaquin <br /> River which surrounds the project on three sides; north, east and south. <br /> The west side of the project borders agricultural lands also owned by the <br /> project owner. <br /> Vegetation on the site is limited to grasses and low shrub vegetation. <br /> Larger vegetation in the immediate project vicinity is apparently lacking <br /> due to previous flood events and the poor characteristics of the soil. <br /> Prior development of sand borrow operations may also be responsible for <br /> the removal of vegetation in the past. Shrub vegetation observed to date <br /> consists primarily of willow and buttonbrush. No removal of large <br /> vegetation is proposed for this project. It is believed that existing <br /> vegetation on the site could be removed as part of the sediment removal <br /> operations by tracked scrapers and front end loaders. <br /> The proposed operation can best be described as a reclamation project due <br /> to the particular characteristics at the site. Previous flood events have <br /> created a cut in the up-stream, south bank of the project site. This cut <br /> now extends approximately 600 feet from the normal river bank into the <br /> property. In addition, previous borrow pits on the property have been <br /> excavated to depths below the normal bank level of the river. As a result <br /> of these two features of the property, the river now has the potential to <br /> create a major avulsive cut thus seriously altering the existing river <br />