AgdaPkt 2018-05-21 Joint SA PFA - Laserfiche WebLink

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5/21/2018 Creek Adjacency • No study of elevations of adjacent waterways, or rise and fall of water levels of the creek • "Narrow" buffer zone of 20 feet horizontal distance from edge of parking lot to the creek • No meaningful study of the vertical separation elevations between the proposed grade of the parking lot and the creek • "It is our opinion that the small horizonal and vertical "buffer" may be inadequate to properly isolate the project from the creek" • Study needed to assure that the Project will not adversely impact the water quality, flow or safety of the creek from: — Storm water surface flow and/or groundwater infiltration and potential connection between the Project site and the creek — Any negative impacts on Redwood Creek will immediately find their way into the nearby San Francisco Bay Redwood Creek - A Major Local Environmental Feature The interconnected surface water features just down stream appear to be "environmentally significant and sensitive" The ground and ground water beneath the area is geologically strongly interconnected with and interrelated to these waterways • Potential for storm water and groundwater to intercommunicate with the creek and surface waterways • No adequate study and analysis to show how the Project site can be properly isolated from the adjacent Redwook Creek and downstream water bodies. • Studies should address site drainage and groundwater transmission, both during construction period and after the development of the proposed project.