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The San Joaquin County Land -Use Map designates the site and its sur- <br />roundings as general agriculture land (GA -40 zoning designation). In <br />addition to livestock grating, several areas are developed for the <br />cultivation of crops, chiefly grapes (see Figure 3). Approximately 20 <br />scattered residences exist within l mile of the site: the majority of <br />those are located along either Tully Road or Harney Lane. Since most <br />water -supply wells in the area are located adjacent to homes, the dis- <br />tribution of residences corresponds generally to the distribution of <br />wells (see Figure 3). <br />Since land use is predominantly agricultural, ground water is tapped <br />mainly for irrigation purposes, with a smaller quantity supplying <br />household needs. Barring an unexpected resurgence in farming activity <br />in this portion of San Joaquin County, no increase in ground -water <br />pumpage is expected. <br />D. CLIMATE <br />The site experiences a Mediterranean -type climate that is typical of <br />that found in the northern San Joaquin Valley. Winters are cool and <br />moist, while summers are hot and dry. The mean daily maximum tempera- <br />ture in July and August is in excess of 90°F, with frequent daily <br />highs over 100°F. January minimum temperatures average between 35 and <br />40°F, with maximum temperatures in the mid -50s. Rainfall is seasonal, <br />with 90 percent of the precipitation occurring from October through <br />May. The annual precipitation for the area averages between 14 and <br />16 inches per year according to the U.S. Geological Survey. Central <br />Sierra Subregion isohyetal map. <br />9390206.001) <br />