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- �• .� ��esney 668-2588 P. I <br /> f <br /> w <br /> June 15,204i <br /> San Joaquin County4- <br /> Deuartmert <br /> t of Public Works <br /> Mr. Gabe Kamm, Senior Civil Engineer <br /> Stockton, CA <br /> Dear Mr. Karam: <br /> Mr. Dave Olmstead has asked me to provide you with water use data for <br /> the proposed Linrte <br /> Estates project. It is our understanding that the San Joaquin County Fater Policy states that <br /> residential (donicrtic)wetter use for a project must not exceed the current agricultural water use <br /> over the subject area. <br /> City of Tracy standards indicate the average household uses approximately one-hM F acre-feet of <br /> water per year(162,926 gallons'), The L' a Estates project will consist of an average of 2.12 <br /> homes per acre over the project area 91.8 crpc for approxi mately 195 homes. 'Faking 145 <br /> homes x 162.926 gallons=31,770,5 ga or 97.5 acre-feet of water use per year. <br /> O the project's ell.8 acres, all but 4.5 acres are in walnuts and apricots. According to the <br /> University of California Irrigation Manugl, walnuts use a total yearly amount of 42 incites of <br /> irrigation water and-stone fruit such as apricots use 1 8.5 inches of water.per year. The total <br /> volume of irrigation water,using an average oF40 inches(3-1fly over the 87.3 acres currently <br /> farmed in walnuts and apricots=873 acres x 3.3 ft x 325,851 gallonslay-ft=93,874,415 gallons, <br /> or 288.1 acre-teet of water. ` <br /> 5 <br /> Therefore, the current agricultural water use over the L�nne Estates project area is approximately <br /> three times the proposed domestic usc. <br /> Rcspc;ctfully subruiacd, I C r <br /> VALLEY Ag RESEARCH <br /> t <br /> Don Chesney � t <br /> Registered Environmental Assessor#4675 � <br /> Licensed Civil Engineer InICm#XE96643 <br /> r <br />