1108 CHESTNUT CT 2017-06-09 - Laserfiche WebLink

2. EXISTING CONDITIONS SUMMARY The site covers approximately 0.14 acres. A building permit application has already been submitted to the City of Everett and approved for a proposed SFR located on the adjacent parcel to the south. Prior to the submittal for the building permit application, the existing site consisted of landscaping, an existing SFR, carport, concrete patio and walkway. These have all been removed under the current building application. The site currently contains lawn/landscaping. Access to the site will be from the existing roadway to the east (Chestnut St). Approximately 2,402 sf (0.06 acres) of the parcel will be impacted by new impervious surfaces, with the entire site, approximately 6,200 sf (0.14 acres) being disturbed as needed for the clearing/grubbing and restoration of the existing combined site. The proposed area of disturbance is the entire site. The proposed area of disturbance drains to the north/northeast. Neither the existing roadway to the east nor the existing alleyway to the west drain toward either property. This project will not affect any off-site flows from passing through the combined site as in the existing condition. All of the proposed impervious surfaces for this project will be dispersed on-site and leave the project parcels as sheet flow or naturally infiltrate on-site via shallow swales. Since the parcel has been cleared previously and appear to have been graded the USDA Web-Soil Survey was used to determine the existing soil conditions for the parcel. Refer to Figure 4. The soils are mapped as Alderwood-Urban land complex. The general combined site slopes, in the area of disturbance, are moderate and do not exceed 10 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. Chestnut North Lot 16-0213 February 2016 Page 4