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POTENTIALLY <br />ISSUES POTENTIALLY SIGNIFICANT LESS THAN NO <br /> SIGNIFICANT UNLESS SIGNIFICANT (M17PACT SOURCES <br /> ISSUES MITIGATION lA9PACT <br /> INCORPORATED <br />iv) Landslides? X 1, 2, 4 <br />b. Result in substantial soil erosion or the loss of X 1, 2 <br />to soil? <br />c. Be located on a geologic unit or soil that is X 1, 2, 4 <br />tmstable, or that would become unstable as a <br />result of the project, and potentially result in <br />on- or off-site landslide, lateral spreading, <br />subsidence, li uefaction or colla se? <br />d. Be located on expansive soil, creating X 1, 2 <br />substantial risks of life or ro erty? <br />e. Have soils capable of adequately supporting X 1, 2, 6 <br />the use of septic tanks or alteniative <br />wastewater disposal systems where sewers are <br />not available for the dis osal of wastewater? <br />£ Any increase in wind or water erosion of soils, X 1, 2, 6 <br />either on- or off-site? <br />g. Changes in deposition or erosion of beach, X 1, 2 <br />sands, or changes in siltation, deposition or <br />erosion wluch may modify the chaimel of a <br />river or stream or the bed of the ocean or any <br />ba ,inlet or lake? <br />EXPLANATION: The project area is located within the seisnucally-active Bay Area. Active faults that may influence the <br />earthquake susceptibility of the site include: the active Ha}nvard fault mapped about 1.5 miles east of the site; the active Calaveras <br />fault located about 11 miles to the northeast; and the active San Andreas fault located about 17 nines southwest of the site. The <br />Ha}nvard, Calaveras and San Andreas faults are major active faults capable of generating earthquakes estimated to have maximum <br />" <br />credible magnitudes of 7.1, 6.8 and 7.9, respectively. However, the site is not withui a ctuTently designated "Special Studies Zone <br />for active faults. Therefore, it is likely that during the lifetime of any future buildings constructed on the project site, fliey will be <br />subject to seisnuc shaking and other earthquake-induced effects. The Uniform Buildnig Code requires new building construction to <br />meet requirements for construction in earthquake-prone areas, which is intended to mininuze any potential impacts related to seisnuc <br />events. Future development is required to connect to the city's sewer system (which already serves the site), therefore impacts <br />related to soils types and septic tanks are not applicable. <br />4. HYDROLOGY AND ~'VATER QUALITY: Would the ro'ect: <br />a. Violate any water quality standards or waste X 2 <br />dischar ere uire.ments? <br />b. Substantially deplete groundwater supplies or X 2 <br />interfere substantially with groundwater <br />recharge such that there would be a net deficit <br />in aquifer volume or a lowering of the local <br />groundwater table level (e.g., the. production <br />rate of pre-exsting nearby wells ~a~ould drop to <br />a level which would not support existing land <br />uses or planned uses for which permits have <br />been ranted ? <br />c. Substantially alter the existing drainage pattern X 2 <br />of the site or area, including tluough the <br />alteration of the course of a stream or river, in <br />a mamter which would result insubstantial <br />erosion or siltation on- or off-site? <br />1016-1052 Davis/ PLN2004-00031 - hutial Study Checklist 4 Apri12004 <br />