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DYNASTY WEST DUPLEX <br /> Element# 10: Control De-Watering <br /> • <br /> De-watering of the site is not expected. If dewatering of the site is needed, all groundwater <br /> removed shall be retained and recharged into the ground after de-watering has been <br /> finalized. <br /> Element# 11: Maintain BMP's <br /> All Temporary Erosion and Sedimentation Control (TESC) devices and equipment will be <br /> inspected and maintained on a weekly basis if not sooner, based on storm events <br /> contributing to runoff. When construction is complete and the site is stabilized, any <br /> existing sediment will be removed and stabilized onsite. <br /> Element# 12: Manage the Project <br /> A general construction manager will manage the project for or by the owners. The <br /> construction manager shall maintain all of the above items in order to minimize sediment <br /> transport and turbid water leaving the site. His/her job will entail continual observation of <br /> the grading operations to ensure minimal effects to adjacent properties and offsite <br /> waterways. <br /> Minimal Requirement # 3: Water Pollution Source Control <br /> All proposed development is to consist of residential construction.No water pollution <br /> source control is needed. <br /> Minimum Requirement # 4: Preservation of Natural Drainage Systems and <br /> Outfalls, and provisions of off-site mitigation <br /> No changes to the existing drainage systems and outfalls are proposed with this <br /> development. All proposed runoff from the project area is to sheet flow to the northeast. <br /> Minimum Requirement #5 On-Site Storm Water Management <br /> Site runoff is to be infiltrated, dispersed, and/or detained to the maximum extent feasible. <br /> Due to less than 3-feet to the restrictive soil layer on-site, infiltration BMPs are infeasible. <br /> Instead,roof drain runoff design is to consist of a dispersion trench for the new duplex roof <br /> area. Proposed driveway areas are sloped to be dispersed into lawn areas through a 2' wide <br /> gravel transition strip per BMP 12.70. Additionally, all disturbed pervious areas are to be <br /> amended per BMP T5.13. <br /> WESTERN ENGINEERS,INC. /i` r' PROJECT:14-1366-A WEST <br />