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Description of proposed erosion control BMP's: <br /> • Clearing, grading, and temporary erosion and sediment control plans have been prepared as part of the <br /> drainage plan drawings. However, since a construction site is dynamic it will be necessary to <br /> reassess the erosion control BMP's during construction and install additional measures when <br /> necessary. <br /> Proposed temporary measures possible for this project will include the following BMP's: <br /> Installation of stabilized rock construction entrance. <br /> Straw mulch,hydroseed or other mulching and planting method to stabilized unworked areas. <br /> Retention of vegetation around site. <br /> Silt fence <br /> CB inlet protection. <br /> Permanent measures to reduce or eliminate erosion or water quality degradation will include the <br /> following BMP's: <br /> Paving all traffic areas (Asphalt) <br /> Permanent landscaping in pervious areas. <br /> Limiting cut and fill slopes to 2:1 maximum and 3:1 maximum where exposed to standing water. <br /> Routine maintenance and inspection of the grounds and response to developing problems. <br /> The listed erosion control BMP's will be engineered for anticipated conditions in compliance with <br /> The City of Everett and DOE guidelines.With proper installation, maintenance and inspection the <br /> proposed BMP's should result in minimal impact to the surrounding environment The County retains the <br /> authority by code to require additional measures should the existing measures prove insufficient. <br /> SITE GRADING/EROSION CONTROL RISK ASSESSMENT <br /> Area proposed to be cleared/worked: approx. 0.2238 acres <br /> Average slope for the site: 2% <br /> Erosion Hazard of Soil low <br /> Critical Areas downslope No <br /> Site is upstream of an ESA Stream No <br /> Based on the above information and the fact that the construction site runoff will be collected <br /> on-site, and with the implementation of the BMP's listed and that if site conditions warrant, <br /> additional BMP's can be implemented as corrective measures the Risk Category for this site is <br /> Low Risk. <br /> With the BMP's listed in section B and shown on the site plan, it is anticipated that this site <br /> will have little impact on the downstream system. <br /> V. Source Control Plan <br /> The following worksheet is completed by checking the appropriate boxes for all activities that will or may <br /> occur at the project site. <br /> Following the spread sheet is a list of the required and suggested BMP's for each activity. .. <br />