1329 MADRONA AVE 2022-04-01 - Laserfiche WebLink

2. EXISTING CONDITIONS SUMMARY , The entire property consists of approximately 0.43 acres. Runoff generated from the existing site sheet flows in a northwestern direction toward the steep slopes that begin just at the northwestern property line. This project will not affect any off -site flows from passing through or around the site as in the, existing conditions. Land use around the site is primarily single-family homes. The parcel associated with this project is undeveloped and currently consists of lawn and pastured ground cover. The grades on the site in the area of disturbance are moderate to steep and average ' approximately 22 percent to the northwest. Exploration borings performed by Associated Earth Sciences, Inc. were used to determine ' the soils on -site. Soil logs showed Accoluvium, landslide deposits, and pre-vashon non - glacial sediments with groundwater seepage encountered from 7.5 to 9 feet below grade. The USDA Web Soil Survey was also used to show that the site consists of Alderwood- Urban land complex. General site slopes in the area of disturbance are moderate to steep and average approximately 22 percent. Based on the existing soil information and the setbacks of the proposed improvements from any of the property lines or critical areas there is little potential for erosion or sedimentation during construction assuming the basic BMPs included in the SWPPP are installed .and maintained properly. Refer to Figure 2 for an existing basin map. , Mazza SFR 19-1014 November 2019 "Revis�'d: Apts1`2020 Page 4 '