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Meadowlark Development - Austin Property - Environmental Checklist Less Than Potentially Significant Less Than Significant With Mitigation Significant No Issues (Continued) Impact Incorporated Impact Impact h) Place within a 100-year flood hazard area structures, 0 0 0 [K] which would impede or redirect flood flows? i) Expose people or structures to a significant risk of loss, 0 0 0 [K] injury or death involving flooding, including flooding as a result of the failure of a levee or dam? j) Inundation by seiche, tsunami, or mudflow? 0 0 0 [K] Discussion a,e,1) All new lots will be designed to drain to vegetativc retention basins and drainage swales to pre- treat the runoff before its entry into the City's storm drain system. The project will be required through the building permit and construction process to incorporate best management practices for discharges resulting from this development. The City has adopted the most rccent Regional Water Quality Control Board stormwater discharge requirements related to design, construction and implementation of the subject site, Therefore, this would be a less-than-significant-impact. b) Thc project will not usc ground water for this project. Any existing wells will be required to be abandoned pursuant to the Alameda County Dcpartment of Environmental Health, The devcl- opment of this project does not anticipate a loss of groundwater recharge potential, Therefore, this would be categorized as no-impact. c-d) Site development will alter the existing drainage pattern from its existing condition, The im- provcments will not alter the alignment or stability of any Arroyo within Pleasanton's jurisdic- tion. Therefore, this would be categorized as a less-than-significant-impact. g-i) Housing will not be placcd within a 100-year flood hazard. The development will not expose people or structures to a significant risk of loss, irUury or death involving flooding, Thcrefore, this would be categorized as no-impact. j) The City of Pleasanton is not at risk from seiche, tsunami, or mudflow. Therefore, this would be categorized as no-impact. 9. LAND USE PLANNING Environmental Setting The project site is developed one single-family detached home, several accessory structures, and orna- mental landscaping, which will remain. The project proposes to subdivide an 8.0 acre portion of thc Austin property into 8,0 lots for 8.0 new single-family dctached homes and to dedicate the remaining 22 acres to the City of Pleasanton as pcrmanent open space, in conformance to the policies of thc Pleasan- PGP A-ll/PUD-58/PTR-7813 Page 25 of 36 July 19,2006