GIOELLO Nick <br />Fro : <br />GIOELLO Nick R <br />Sent: <br />Friday, November 03, 2017 3:51 PM <br />To: <br />'Brent Lorscheider' <br />Subject: <br />RE: Question on stormwater plan for a Chpud <br />Brent, see below for response to #2 & 3 from Scott Gillespie: <br />The applicant is proposing flow control for all lots and roads within the subdivision and to maintain <br />existing drainage patterns. This means that post development flows will be equal to or less than pre- <br />development flows. Calculation of post development flow from lots is not necessary or relevant at the <br />subdivision stage since all lots will have to implement flow control at the time of building permit. This <br />means that post development flow rates will never exceed the pre-development flow rates regardless <br />of the amount of impervious area on each lot. The report calculates the pre-development flows (which <br />also equal or exceed post development flows) and that is used for design purposes to satisfy Flood <br />Control criteria in EC 9.6791. <br />Thanks, <br />Scott Gillespie, PE <br />Public Works Engineering <br />99 East Broadway, Suite 400 <br />Eugene, OR 97401 <br />541-682-2706 <br />Regarding question #1, it is not my role to agree with answers from the other staff or the applicant, my role is <br />to provide professional analysis as a Planner regarding compliance with the approval criteria, gathering input <br />from other professionals/experts/agencies (such as Public Works, Fire Department, EWEB, etc.) and making <br />recommendations to the Hearings Official. This project is still in the review stage, a full analysis will be <br />available as a staff report one week before the scheduled hearing date. <br />Thanks, <br />Nick <br />Nicholas R. C" oelllo, M. Ad . <br />?°,sst J ie P nc -I.: i..ning Division <br />5' o <br />ig e. n e or u <br />1 <br />