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The final step in the process involved a review of the water body data, manually comparing it with the <br />satellite imagery, and correcting any errors. Any remaining cloud shadows and mountain shadows <br />incorrectly mapped as water bodies were removed. <br />3. Results <br />The total area of water bodies three acres or greater during the 2001 growing season is 98,638 acres for <br />the SPDSS study area (Table 1). An approximation of the area of water bodies less than three acres in <br />size is 9,600 acres. These features were less than the minimum size delineation and are not included in <br />Table 1, which summarizes the water bodies by size classes. Table 2 summarizes the water bodies by <br />Water District. Figure 1 shows a satellite image and an example of a large water body. The yellow <br />outline shows the mapped water body extent. Figure 2 shows a satellite image of a group of gravel pits <br />with outlines of water bodies. <br />Table 1. Summary of Water Bodies by Size <br />Class in the SPDSS Study Area <br /> <br />Size (ac) # of Water <br />Bodies Total Area <br />(ac) % of <br />Total <br />Area <br />3-5 673 2,602 3% <br />5-10 676 4,757 5% <br />10-20 484 6,720 7% <br />20-50 358 11,011 11 <br />50-100 109 7,455 8% <br />100-500 104 21,368 22% <br />500-4000 33 44,725 45% <br />Total 2,437 98,638 100% <br />Table 2. Water Body Summary by Water <br />District <br />Water <br />District # of Water <br />Bodies Total Area <br />(ac) % of <br />Total <br />Area <br />1 461 15,780 16% <br />2 336 11,243 11 <br />3 364 17,231 17% <br />4 175 9,125 9% <br />5 205 7,097 7% <br />6 178 4,978 5% <br />7 108 2,780 3% <br />8 142 4,544 5% <br />9 33 1,588 2% <br />23 74 8,931 9% <br />47 194 5,533 6% <br />48 33 866 1% <br />64 116 7,702 8% <br />80 17 418 0% <br />101 1 821 1 <br />Total 2,437 98,638 100% <br />Page 2 of 3 ~fxlversfde Technology, fnc. <br />V.Lrrc- Aesourc.~s Frr4r.~ec.•mq .m~Y Corzsuxrnq <br />