The car garage, drive strip, and Common House* buildings will be treated by the vegetated swale. <br />A berm at the end of the swale will act as a weir to reduce flows to predevelopment rates. The <br />swale was sized using the presumptive method. <br />The site is not located in the headwaters area and is therefore exerript. However, to protect the <br />adjacent property, flows were reduced to predevelopment rates as stated above. <br />Calculations supporting the above are enclosed. Please feel free to contact SSW Engineers Inc. if <br />you have any questions. <br />Sincerely, <br />SSW Engineers Inc <br />Michael A Cox, P.E. <br />MAC/mac <br />Page 2 of 2 Oakleigh Meadows Cohousing <br />577 <br />