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B. EXISTING SITE CHARACTERISTICS 1. Describe the existing uses and improvements on the project site ( including the type and number of any structures , roads, etc. ) . If undeveloped, put "vacant" or "agriculture" : Property in both counties is used for drainage, razin and a ricultural purposes with dis erse groups of structures residences , equipment, storage, etc neede to support the agricultural use. 2 . Uses in immediate vicinity : North Water, storaqe & agriculture South Residential and Interstate Freeway East Agriculture and housing West nd Wind- arms 3 . Describe the existing topography on-site (e.g. , % of slopes , etc. ) Generali flat and sloping to h e northeast wsith an avaerage slope of 1% except for rollinq foothills along the westerly bound ar in Alameda County) . Elevations vary from a maximum of 300 ft along the west boundary in Alameda County) to 0 ft. adjacent to Old River. 4 . Describe existing drainage courses or eroded areas on or near the project site (e .g. , rivers , creeks , drainage ditches ) : Mountain House Creek, a major drainage channel , traverses through the site from the southwest in Alameda County to the fort east in an oaquin County. Uld River. a Delta waterwav borders the site on the northeast 5 . Describe the existing vegetation on-site and the percentage of the site it covers (map any significant vegetation stands and all mature trees 6" or greater in diameter ) It is estimated that 80% is used fora riculturalgrazing or related uses. In areas around resi ences an _agriculture support structures , there are a few stands of mature trees o various varieties. 6 . Describe the existing wildlife on-site : Typical of the rural agricultural _scene along the west side of the valley. See attached report for urt er etail . 7 . Are there any cemeteries , structures , or other items of historical or archaeological interest on the property? No X Yes , specify: 8 . Describe any nearby or on-site hazards or hazardous areas (airports, waste sites , seismic, liquefaction ) : There are no known hazards or hazardous areas nearby or on-site. 9 . Describe any areas subject to flooding on the property and fre- quency. Describe any areas experiencing poor drainage (ponding, etc . ) The northeastern portion of the site (up to elevation 8) is subject to floodinq as a result of a 100-year flood eventAreas adjacent to Iver may experience poor drainage. 10 . What is the current depth to groundwater? 15 to 20 feet, on average. General Plan Map Amendment 12 ( 6-86 )