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22 <br /> C.J. Cornette detailed the hydrogeologic evaluation process, examining topographic and <br /> lithologic trends. He said Orange County's 2001 groundwater report is unique, and noted most <br /> counties lack such comprehensive data. Using the map on the slide, he demonstrated identifying <br /> topographic features like valleys that might indicate areas of geological interest. <br /> Slide #10 <br /> ALMA <br /> Public Supply Well Siting <br /> • Topographic and <br /> lithologic trends <br /> • Site geology <br /> Zhe <br /> S <br /> ./ <br /> - `cdgr:kld . <br /> Culmy�r <br /> C.J. Cornette explained that site geology includes various rock types: metavolcanics, <br /> andesite or, andesitic and basaltic tufts, metavolcanics, and granodiorites, or diabase dikes. The <br /> geological diversity provides opportunities for targeting specific formations for water yield. <br /> Slide #11 <br /> ARMk <br /> Public Supply Well Siting <br /> Zhe <br /> • Topographic and <br /> lithologic trends 0� ;, { <br /> • Site geology �� - •3�' <br /> • Regional well trends ' Jd <br /> Zhe , <br /> ZO qpm �' ZdI 79c <br /> • Pollutant setbacks � • •� 1�PM �� -: <br /> t <br /> •SO 4p- <br />