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SAN LEANDRO SHORELINE DEVELOPMENT EIR ADDENDUM PROJECT <br />CITY OF SAN LEANDRO <br /> <br />Page 38 PlaceWorks <br />Environmental Issues <br />Substantial <br />Change in <br />Project <br />Requiring <br />Major <br />EIR/MND <br />Revisions <br />Substantial <br />Change in <br />Circumstanc <br />es Requiring <br />Major <br />EIR/MND <br />Revisions <br />New <br />Information <br />Showing <br />New or <br />Increased <br />Significant <br />Effects <br />Less Than <br />Significant <br />Impacts/No <br />Changes or <br />New <br />Information <br />Requiring <br />Preparation <br />of a <br />Subsequent <br />EIR/MND No Impact <br />e) Conflict with or obstruct <br />implementation of a water quality control <br />plan or sustainable groundwater <br />management plan? <br /> x <br /> <br />Background: <br />2022 Appendix G Threshold <br />The CEQA Checklist Guidelines for Hydrology and Water Quality has been updated since those used for <br />the Certified EIR of the Original Project. The changes are detailed below: <br /> <br />IX. HYDROLOGY AND WATER QUALITY. <br />Would the project: <br />a) Violate any water quality standards or waste discharge requirements or otherwise substantially <br />degrade surface or ground water quality? <br />b) Substantially deplete decrease groundwater supplies or interfere substantially with groundwater <br />recharge such that the project may impede sustainable groundwater management of the basin <br />there would be a net deficit in aquifer volume or a lowering of the local groundwater table level <br />(e.g., the production rate of pre-existing nearby wells would drop to a level which would not <br />support existing land uses or planned uses for which permits have been granted)? <br />c) Substantially alter the existing drainage pattern of the site or area, including through the <br />alteration of the course of a stream or river or through the addition of impervious surfaces, in a <br />manner which would: <br />i. result in substantial erosion or siltation on- or off-site; <br />ii. substantially increase the rate or amount of surface runoff in a manner which would result <br />in flooding on- or offsite; <br />iii. create or contribute runoff water which would exceed the capacity of existing or planned <br />stormwater drainage systems or provide substantial additional sources of polluted runoff; or <br />iv. impede or redirect flood flows? <br />d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to project inundation? <br />e) Conflict with or obstruct implementation of a water quality control plan or sustainable <br />groundwater management plan? <br />d) Substantially alter the existing drainage pattern of the site or area, including through the <br />alteration of the course of a stream or river, or substantially increase the rate or amount of <br />surface runoff in a manner which would result in flooding on- or off-site?