4800 DOGWOOD DR 2022-02-28 - Laserfiche WebLink

• View Ridge Comm.Church Add. Minimum Requirement # 2: SWPPP Narrative • Element#1: Mark Clearing Limits Clearing limits have been shown on the SWPPP Plan. Element#2: Establish Construction Entrance The existing driveway entrance accessing Dogwood Drive is to serve as construction • entrance. 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 a temporary silt fencing on the downstream edge of the clearing limits. • Element#4: Install Sediment Controls Sediment controls mainly consist of installation of a temporary silt fencing on the downstream edge of the clearing limits. Element# 5: Stabilize Soils • All soils disturbed during site grading will be stabilized by use of the most appropriate BMP method available. These consist of short-term and long-term solutions. Short-term methods consist of compaction of the soils by vibratory roller or bulldozer. Long-term methods consist of straw covering over the soils (this is in the case of the project becoming dormant for greater than 1 month). At this time no wintertime grading or construction • activities will occur. During construction periods longer than 1 working week (7 days) where the soils are exposed and un-worked will use the proscribed methods in the Storm Water Management Manual for Western Washington to reduce sedimentation transported offsite. If winter grading is conducted, all exposed soils shall be covered within 2 days. • Element# 6: Protect Slopes On-site steep slopes lie outside the project clearing limits and will be protected with well- defined clearing limits and silt fencing. Element#7: Protect Drain Inlets • All catch basins within 500 feet downstream of the site will be protected with catch basin sediment inserts. 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. 10 PROJECT:17-1619-A