2219 PINEHURST AVE BASE FILE 2020-07-14

Task 1: Define and map the study area The project study area includes the project site itself, with no tributary upstream basin, and a downstream flow path for a distance of'A-mile. Task 2: Review all available information on the study area FEMA identifies the project site on Flood Insurance Rate Map (FIRM) 53061C1100E, and is located not within a Flood area. Per the United States Department of Agriculture NRCS Web Soil Survey, site soils are Alderwood Urban Land Complex, 2 to 8 percent slopes. Task 3: Field inspect the study area The current parcel is 8,941 s.f.; the proposed duplex lot is covered with soil and gravel, with some grass. There are no trees or shrubs. There is an existing garage that will be demolished as a part of the proposed construction of a new garage and driveway for the adjacent existing house. There are no wetland and/or associated buffers located on the Proposed Lot. The proposed lot boarders and takes access from Pinehurst Avenue along the south property line, and boarders other adjacent parcels along the west, north and east property lines. Task 4: Describe the drainage system, and its existing and predicted problems No significant problems were identified during the onsite investigation. The topography of this site slopes from the north to the south. There are no wetlands and/or associated buffers located on this site. The drainage basin and downstream analysis can be found in Appendix 1C. Downstream analysis shows there are no key issues or limitations with the existing system. Pinehurst Ave. Duplex Drainage Report