2129 103RD ST SW A,B 2017-03-16 - Laserfiche WebLink

DYNASTY EAST DUPLEX , Minimum Requirement # 2: SWPPP Narrative Element#1: Mark Clearing Limits Clearing limits have been shown on the TESC Plan. Element#2: Establish Construction Entrance A temporary construction entrance at the location of the existing driveway has been shown on the SWPPP plan. All vehicles shall be free of debris prior to leaving the site. Element#3: Control Flow Rates Flow rates during construction are to be contained through the installation of silt fencing along the western,northern, and southern clearing limits. Element#4: Install Sediment Controls Sediment controls mainly consist of installing silt fencing along the western, northern, and southern clearing limits. Element#5: Stabilize Soils All soils disturbed during site grading will be stabilized by use of the most appropriate BMP method available. Bare and/or disturbed soils shall remain uncovered and/or unstabilized for no more than 2 days from October 1 through April 30, and no more than 7 days from May 1 through September 30. Element# 6: Protect Slopes On-site steep slopes lie within the existing stream buffer areas and will be unaffected by construction activities. Element#7: Protect Drain Inlets Culvert inlets downstream of the site along 103rd Street SW will be protected with triangular silt dams or equivalent. Element# 8: Stabilize Channels and Outlets Channels and drainage outlets are not needed around the proposed development area on site. No stabilization is necessary.Existing channels or drainage outlets located within 500- feet of the property of the property should be routinely inspected for debris that may dam and/or aid erosion. Element#9: Control Pollutants All pollutants from construction vehicles will be contained and disposed of in the approved manner consistent with state environmental policies. Any vehicle maintenance will be performed by authorized mechanics using drip pans and waste containment vessels. All pollutants will be disposed offsite at approved facilities. WESTERN ENGINEERS,INC. PROJECT:14-1366-A EAST