10306 27TH DR SE 2021-12-15 - Laserfiche WebLink

Inspection and Monitoring: Site inspections shall be done by a person who is knowledgeable in the principles and practices of erosion and sediment control. The person must have skills to first assess the site conditions and construction activities that could impact the quality of stormwater, and second assess the effectiveness of erosion and sediment control measures used to control the quality of stormwater discharges. Whenever inspection and/or monitoring reveals that the BMPs identified in the Construction SWPPP are inadequate, due to the actual discharge of or potential to discharge a significant amount of any pollutant, appropriate BMPs or design changes shall be implemented as soon as possible. Maintaining an Updated Construction SWPPP: *The construction SWPPP shall be retained on -site or within reasonable access to the site. The SWPPP shall be modified whenever there is a change in the design, construction, operation, or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the state. The SWPPP shall be modified if, during inspections or investigations conducted by the owner/operator, or the applicable local or state regulatory authority, it is determined that the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. The SWPPP shall be modified as necessary to include additional or modified BMPs designed to correct problems identified. Revisions to the SWPPP shall be completed within seven days following inspection. 13: Protect On -Site Stormwater Management BMPs for Runoff from Hard Surfaces The use of on -site management BMP's for this project will allow for the installation of the infiltration trenches at the end of the project during final stabilization. That will protect those areas from disturbance or compaction. In addition, the organic content of the amended soils will be tested and verified prior to final project acceptance. 5. SOURCE CONTROL This project proposes to construct a new SFR and paved driveway. Volume IV of the 2014 DOE Stormwater Management Manual was reviewed for specific BMPs required for this type of land -use. None of the activities or land uses contained in any of the chapters in Volume IV applies to this project. Therefore, no site/development specific source control BMPs are required for this project. 6. PRESERVATION OF NATURAL DRAINAGE SYSTEM By not grading or compacting the pervious and amended surfaces to remain after construction in the area of disturbance a maximum amount of site runoff from the developed project will be absorbed and infiltrated into the existing on -site soils. This will mimic the existing conditions by maintaining the existing direction and condition of flow from this site. 27cn Dr SE - Haack 19-0508 May 2019 Page 8