7102 LOWER RIDGE RD 2018-07-25 - Laserfiche WebLink

J I THE 13 ELEMENTS OF A CONSTRUCTION SWPPP 1. Preserve Vegetation/Mark Clearing Limits:The clearing limits are indicated on the plan sheet.Furthermore, clearing and grading will be limited to only areas that need to be disturbed for grading/construction of the road surface to preserve as much natural vegetation as possible.Field marking the clearing limits shall be completed prior to clearing and grubbing activities. BMP's: Preserve Natural Vegetation(VEG) Field Marking Clearing Limits(CL) 2. Establish Construction Access: Access to the construction site shall be limited to the rock construction entrance.The construction entrance shall be extended to provide access to the construction vehicle/equipment staging and employee parking areas. BMP's: Stabilized Construction Entrance(CE) 3. Control of Flow Rates: Storm water detention: No detention is proposed for the site since the increase in volume is less minimal 4. Installation of Sediment Controls: Sediment control will be provided through a combination of filtration through the surround on-site vegetation, filter fence, straw bails, BMP's: Silt Fence(FF)If required 5. Soils Stabilization:Temporary and permanent soil stabilization will be provided.Temporary stabilization will be provided through the application of straw and/or plastic sheeting to exposed,worked earth.From October 1 until April 30, no exposed soil may remain exposed and unworked for more than two days; after May 1, no exposed soil may remain exposed and unworked for more than seven days. BMP's: Plastic Sheeting, 6. Slope Protection: Slopes shall be protected from erosion through cover and prevention of concentrated surface runoff flows. BMP's: Plastic Sheeting, 7. Protection of Permanent Drain Inlets: Inlet protection will pe provided for all catch basins. BMP's: N/A 8. Stabilization of Channels and Outlets:All channel slopes shall be constructed and protected against erosion in accordance with City E.D.D.S. BMP's:None required 9. Pollutant Control:Pollutants shall be controlled as described in the Potential Pollutants section of this SWPPP. 10. Dewatering Control: De-watering:Interception of the water table is not expected to occur,even if there is an increase in precipitation.However,should ground water flows be encountered,the flows can be directed to on site native vegetation for cleanup. BMP's:Native vegetation(As Required) 11. BMP Maintenance: All BMP's and SWPPP elements shall be inspected daily and maintained as required. 12. Project Management:The project shall be managed in a cooperative effort by the project manager,contractor, engineer, and the City inspector. During the construction process, if unforeseen issues arise that cannot be resolved on site,construction activity(other than SWPPP maintenance)shall be halted and the City inspector and the project engineer are to be contacted and informed of the situation. 13. Protect On-Site Stormwater Management BMPs For Runoff From Roofs And Other Hard Surface On-site stormwater management BMPs used for runoff from roofs and other hard surfaces include: full dispersion,roof downspout full infiltration or dispersion systems,perforated stubout connections,rain gardens, bioretention systems,permeable pavement,sheetflow dispersion,and concentrated flow dispersion. The areas on the site to be used for these BMPs shall be protected from siltation and compaction during construction by sequencing the construction in a fashion to install these BMPs at the latter part of the construction grading operations, by excluding equipment from the BMPS and the associated areas, and by using the erosion and sedimentation control BMPs. BMP C102: Buffer Zone 7102 Lower Ridge RD Full Drainage Report Revised:November 3,2017 Page 8