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JJACOBSON <br /> JCCONSULTING EROIREER! <br /> In order to prevent erosion and trap sediments within the project site, the following <br /> BMPs will be used: <br /> • Clearing limits will be marked by fencing or other means on the ground. <br /> • Mulch will be spread over all cleared areas of the site when they are not being <br /> worked. Mulch will consist of air-dried straw and chipped site vegetation. <br /> • Catch basin protection will be installed on the drainage structures downstream <br /> of the project. <br /> • Plastic slope covering will be utilized when appropriate <br /> 5. Maintenance and Operations —The project consists of all private drainage facilities <br /> and therefore it is acknowledged that all Drainage facilities must be maintained and <br /> operated in accordance with the maintenance standards. <br /> 6. Wetland Protection — As described in the downstream drainage description, a portion <br /> of the project site discharges to an existing wetland. It is our intent that while the <br /> project meet the requirements for Combine Sewer drainage requirements for the <br /> portions of the site that drain directly to the combined sewer, that we also provide <br /> wetland project for the portion of the site that drains to the wetland. Based on the <br /> Department of Ecology drainage requirements we have described the requirements for <br /> protecting existing wetlands below along with a description of the way we believe the <br /> project is meeting the requirement: <br /> General Protection (Stormwater Management Manual for Western Washington I-C.2) <br /> All wetlands (Categories I, II, Ill and IV)must receive the following general protection: <br /> a. Consult regulations issued under federal and state laws that regulate the discharg <br /> e of pollutants to surface waters, including the Construction Stormwater General <br /> NPDES Permit. <br /> The project has reviewed regulations for stormwater discharge to surface waters, the <br /> project is under the threshold for NPDES permit coverage for the project and will not <br /> be pursuing NPDES coverage. Erosion control measures will be used during <br /> construction. <br /> b. Maintain the wetland buffer required by local and/or state regulations. <br /> No construction activities will be completed within the wetland buffer that haven't <br /> already been developed in previously permitted projects. <br /> c. Retain areas of native vegetation connecting the wetland and its buffer with <br /> nearby wetlands and other contiguous areas of native vegetation. <br /> 255 S.King Street,Suite 800,Seattle,WA 98104 I 206.426.2600 I JACOBSONENGINEERS.COM <br />