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Rick Griffin, Project Manager Page 3 August 6,2019 • If the area of construction is located within a Regulatory Floodway as delineated on the FIRM,any development must not increase base flood elevation levels. The term development means any man-made change to improved or unimproved real estate, including but not limited to buildings, other structures,mining, dredging,filling, grading,paving, excavation or drilling operations, and storage of equipment or materials. A hydrologic and hydraulic analysis must be performed prior to the start of development,and must demonstrate that the development would not cause any rise in base flood levels. No rise is permitted within regulatory floodways. • Upon completion of any development that changes existing Special Flood Hazard Areas, the NFIP directs all participating communities to submit the appropriate hydrologic and hydraulic data to FEMA for a FIRM revision. In accordance with 44 CFR, Section 65.3, as soon as practicable, but not later than six months after such data becomes available,a community shall notify FEMA of the changes by submitting technical data for a flood map revision. To obtain copies of FEMA's Flood Map Revision Application Packages, please refer to the FEMA website at llttp://wvv,,v.fema.k;ov/business/nfii)/iorms.slltrn. If you have any questions or concerns, please do not hesitate to call me at 510-627-7186, or Ms. Patricia Rippe of the Floodplain Management staff at 510-627-7015. Sincerely, Gregor Blackburn, CFM, Branch Chief Floodplain Management and Insurance Branch cc: John Maguire, Engineering Services Manager, Public Works Department, San Joaquin County Ray Lee, State of California, Department of Water Resources,North Central Region Office Patricia Rippe,NFIP Planner,DHS/FEMA Region IX Alessandro Amaglio, Environmental Officer,DHS/FEMA Region IX www.fema.gov