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ItJ <br />(Stormwater Management) <br />7. <br />8. <br />Subdivider shall construct stormwater management improvements generally as <br />shown on the Preliminaiy Grading, Drainage and Erosion Control Plan dated <br />September 12, 2000 subject to any revisions of said plan as may be required by <br />the City Engineer. A final Grading, Drainage & Erosion Control Plan must be <br />approved by the City Engineer prior to final plat approval. Both NURP <br />stormwater ponds shall have outlet structures constructed to City Standards that <br />provide skimming to the 100-year storm event. Storm sewer design and <br />calculations should shall be provided for review. Final plans shall be subject to <br />approval by the MCWD, and final plat approval will not be granted until the <br />MCWD has approved all grading and drainage improvements on the property. <br />Subdivider shall adhere to the “Best Management Practices for Protecting Water <br />Quality in Urban Areas”. <br />Subdivider shall grant easements over all drainageways and stormwater ponds <br />within the plat, as follows: <br />1.Standard drainage and utility easements shall be dedicated on the final <br />plat 10' along exterior property lines and 5' along interior property lines, <br />and over stormwater detention ponds located on Lots 1 and 5. <br />2.Drainage easements shall be granted over the lower ravine within Lot 2 <br />and a conservation and flowage easement shall be granted over the south <br />portion of Lot 2 to ensure the higher elevations of the ravine are also <br />protected. <br />3.A conservation easement shall be granted over Outlot A to protect the <br />ravine from any land alteration and vegetation removal, and a simjlar <br />easement shall be granted over the east side of Lots 2 and 3. <br />4.The legal description and language of all easements shall be approved by <br />City staff and the City Attorney. <br />Page 4 ofX f