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' POTENTIALLY <br />ISSUES POTENTIALLY SIGNIFICANT LESS THAN NO <br /> SIGNIFICANT UNLESS SIGNIFICANT IMPACT SOURCES <br /> ISSUES MITIGATION IMPACT <br /> INCORPORATED <br />c. Be located on a geologic unit or soil that is X 2 <br />unstable, 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 2 <br />substantial risks of life or roe ? <br />e. Have soils capable of adequately supporting X 2 <br />the use of septic tanks or altemadve waste <br />water disposal systems where sewers are not <br />available for the disposal of waste water? <br />f. Any increase in wind or water erosion of soils, X 2 <br />either on- or off-site? <br />g. Changes in deposition or erosion of beach, X 2 <br />sands, or changes in siltation, deposition or <br />erosion which may modify the channel of a <br />river or stream or the bed of the ocean or any <br />ba , inlet or lake? <br />EXPLANATION: The project area exists as a mostly developed urban environment. The proposed project includes streetscape and <br />design elements that will enhance the commercial and business environment; calm traffic and enhance pedestrian movement; and <br />create an attractive city gateway along a specific portion of MacArthur Boulevard. This will include the installation of non-habitable <br />structures such as new street lights, and park benches. Minor roadway modifications are also proposed, including the construction of <br />medians, bulb-outs and installation of decorative paving. No geology impacts are anticipated. <br />~t. HYDROLOGYAL'VD WATER'QiIALITY. `°Wouldthe ~ro'ect: <br />a. Violate any water quality standards or waste X 2 <br />dischar ere uirements? <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-existing nearby wells would drop to <br />a level which would not support existing land <br />uses or planned uses for which permits have <br />been ted? <br />c. Substantially alter the existing drainage pattern X 2, 7 <br />of the site or area, including through the <br />alteration of the course of a stream or river, in <br />a manner which would result in substantial <br />erosion or siltation on- or off-site? <br />d. Substantially alter the existing drainage pattern X 2 <br />of the site or area, including through the <br />alteration of the course of a stream or river, or <br />substantially increase the rate or amount of <br />surface runoff in a manner, which would result <br />in floodin on- or off-site? <br />e. Create or contribute runoff water which would X 2 <br />exceed the capacity of existing or planned , <br />stormwater drainage systems or provide <br />substantial additional sources of polluted <br />runoff? <br />MacArthur Boulevard Streetscape Master Plan - IS/ND 4 December/2000 <br />