Laserfiche WebLink
Terra Vista NW,I( Storm water Management Report <br /> List 1 outlines BMP's for hard surfaces in the following order: <br /> Lawn and Landscape Areas <br /> 1. Post construction soil quality and depth in accordance with BMP T5.13 in Volume V, Chapter 5. <br /> At completion of clearing,grading, and hardscape, imported topsoil material will be placed in <br /> landscape areas in accordance with BMP T5.13. <br /> Roofs <br /> 1. Full Dispersion in accordance with BMP T5.30: Full Dispersion. <br /> BMP T5.30 is infeasible as there will be insufficient vegetated flow path from the point of <br /> discharge. <br /> 2. Downspout Full Infiltration Systems in accordance with BMP T5.10A: Downspout Full <br /> Infiltration. <br /> BMP T5.10A is infeasible as there is inadequate space on the site for an infiltration system. <br /> 3. Rain Gardens in accordance with BMP T5.14: Rain Gardens. <br /> BMP T5.14 is infeasible as there is no location on the site where a Rain Garden can be <br /> reasonably designed on a slope less than 8%.Also, there is inadequate space on the site for a <br /> rain garden. <br /> 4. Bioretention in accordance with BMP T7.30: Bioretention. <br /> BMP T7.30 is infeasible as there is no location on the site where Bioretention can be reasonably <br /> designed on a slope less than 8%.Also, there is inadequate space on the site for bioretention. <br /> 5. Downspout Dispersion Systems in accordance with BMP T5.10B: Downspout Dispersion <br /> Systems <br /> BMP T5.10B is infeasible as there will be insufficient vegetated flow path from the point of <br /> discharge. <br /> 6. Perforated Stub-out Connections in accordance with BMP T5.10C: Perforated Stub-out <br /> Connections <br /> Perforated stub-out connections are feasible and fit within the minimum setbacks allowed from <br /> structures and property lines. <br /> Hard Surfaces <br /> 1. Full Dispersion in accordance with BMP T5.30: Full Dispersion. <br /> BMP T5.30 is infeasible as there will be insufficient vegetated flow path from the point of <br /> discharge. <br /> 2. Permeable Pavements in accordance with BMP T5.15: Permeable Pavements. <br /> BMP T5.15 is infeasible as it is unlikelythat the site sub grade can bereduced6% <br /> f g <br /> de to less than <br /> without exposing till soils. <br /> 3. Rain Gardens in accordance with BMP T5.14: Rain Gardens. <br /> BMP T5.14 is infeasible as there is no location on the site where a Rain Garden can be <br /> reasonably designed on a slope less than 8%. Also, there is inadequate space on the site for a <br /> rain garden. <br /> 4. Bioretention in accordance with BMP T7.30: Bioretention. <br /> (210314)4900-3 Everett Page 7 May 19,2021 <br />