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Project No. 90151.e <br /> -� 7 June 1990 <br /> W' Regional Geology <br /> The geological study consisted of a review of geologic data <br /> Npertinent to the site and an interpretation of the Logs of Test <br /> >., Borings. <br /> The geological study consisted of a review of geologic data <br /> nterpretation of Test Boring logs <br /> pertinent to the site, and an i . <br /> The subject site is located in the central p <br /> onion of the <br /> Sacramento Valley region of California. According to the <br /> Sacramento Quadrangle of the Geologic Map of California, <br /> (California Division of Mines and Geology, 1981, 1:250,000 scale) <br /> lain by alluvial deposits of Quaternary age. <br /> the property is under <br /> I <br /> A raKimatan inferred trace of the <br /> ely 2 miles south of the site, <br /> pp <br /> Tracy 'Stockton} Fault is indicated on the Sacramento Quadrangle <br /> of the ;eologic Map of California, (California Division of Mines <br /> and Geology. 1981, 1:254,000 scale) . According to the Earthquake <br /> Epicenter Map of California (California Division of Mines and <br /> Geology; 1378) the Tracy (Stockton) fault has not been active <br /> since 1900. West of the site in the Coast P.snge are several <br /> i <br /> active and potentially active fatilt.s. Tnc].uded is the Iiayward- { <br /> according to published <br /> Calaveras fault system which, literature, <br /> has had earthquakes up to magnitude 7.0_ on the Richter Scale <br /> within the last 240 yea: s. Large magnitude earthquakes along <br /> these faults could impact the-subject-site- area. - <br /> 4 <br />