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D. The proposal includes construction of a new private access roadway and eight industrial buildings, with average lot coverage by buildings of approximately 38 percent (plus approximately 15 percent additional coverage associated with the roadway). Therefore, it can be anticipated that implementation of the proposed project may result in potentially significant impacts related to water quality, groundwater, drainage patterns, and increased run-off. Preliminary hydrologic and hydraulic calculations prepared for the project indicate that storm drainage effluent will be split between the Alameda County Flood Control & Water Conservation District (ACFC) facilities located in Davis Street, and the jurisdictional wetlands located in the southwest portion of the property. These wetlands are tidal impacted through a city -owned storm drainpipe system running parallel to the railroad tracks at the southern end of the site. The project site is located within the 100-year flood zone (Zone VE), identified as coastal flooding with velocity. hazard (wave action). The base flood elevation established is 71 feet. Properties to the south and east currently have problems with flooding, which limits the amount of runoff that can be directed to the wetlands to the south. In addition, in order to protect the salt -sensitive vegetation of the jurisdictional wetlands, the applicant is proposing to limit the runoff rate from the portion of the site that cannot drain to ACFC facilities in Davis Street. Potential impacts related to hydrology and water quality can be adequately mitigated as long as mitigation identified by staff is implemented prior to issuance of grading permits. The mitigation measures are conditions of approval. E. Construction -related activities are anticipated to occur over a period of 18 months, and would be expected to generate substantial amounts of dust, which would result in temporary potential health and nuisance impacts in the immediate project vicinity. Potential impacts for construction -related air quality impacts can be adequately mitigated as long as mitigation identified by staff is implemented prior to issuance of grading permits and during the construction phase. The mitigation measures are conditions of approval. F. The proposed project includes subdivision of the property into nine parcels, with eight of the parcels to be developed with industrial buildings. As proposed, the existing on -site wetland mitigation area, along with the new private access road would constitute the ninth parcel. Two potentially significant impacts could result with this project as follows: 1) development of the site, in particular the FedEx Ground facility to the east of the wetland mitigation area, could affect the existing wetlands by increasing sedimentation during the grading phase and increasing on -site impervious surfaces (with a resultant increase in site runoff) upon project completion; and 2) the new private roadway as proposed would result in the removal of less than 1/10 acre of wetland habitat (near the new crossing proposed for Waste Management). Potential impacts related to on -site wetlands can be adequately mitigated as long as mitigation identified by staff is implemented prior to issuance of demolition and grading permits. The mitigation measures are conditions of approval. G. The project site was utilized for approximately 60 years as a meatpacking plant, with associated cattle pens and agricultural production. Phase I and II Environmental Assessments prepared for the project site indicate that the potential exists for. asbestos -containing materials and lead - based paint to be present on the site structures, given that they were constructed prior to the early 1970's. In addition, several above -ground tanks are located on the property. Potential Findings of Fact November 4, 2002 PLN2002-00031 Bayside Business Park Page 6 of 7