TECHNICAL MEMORANDUM (Branch <br />EltINEERING-- <br />Since 1977 <br />DATE: March 7, 2018 <br />PROJECT: <br />Capital Hill PUD <br />PRpFFS <br />TO: <br />Nick Gioello, Associate Planner <br />s <br />IWC ~O <br />City of Eugene <br />#79232 PE <br />signed by Nathan Pa n <br />CC: <br />Carol Schirmer <br />Date: 2018.03.0712:55:22-08'00' <br />OREGON <br />Schirmer Satre Group <br />~ <br />O <br />9 Fc <br />~ <br />. 21, 2 <br />)AVt PA <br />FROM; <br />Nathan Patterson, P.E. <br />Damien Gilbert, P.E. <br />EXPIRES: 12/31/18 <br />Branch Engineering, Inc. <br />RE: <br />City of Eugene Stormwater Review Applicability <br />This memo is in response to information submitted into the record related to deferring review of <br />certain standards to the building permit process. <br />Detailed individual house designs, and the associated building appurtenances, including but not <br />limited to stormwater and other private utility designs, are reviewed by the public works <br />representatives and the building official and are governed by the building and plumbing specialty <br />codes, as well as the stormwater ordinance. <br />Specifically, similar to designing a detailed foundation for a house, a private stormwater detention <br />and disposal system for a future unidentified home is too detailed to design during the Tentative <br />PUD planning phase. Stormwater systems are directly related to the size and configuration of the <br />impervious surface(s) they will drain and cannot be designed with any confidence prior to design of <br />the house, driveway, and other impervious surfaces. Similarly, the system layout is dependent on <br />the actual location and layout of the house on the lot. All of the proposed roadway detention <br />systems account for the e-dsting upland lots as they emst today. <br />The PUD process doesn't require the detailed design of the home on each lot, and therefore cannot <br />require the detailed design of appurtenances to the home including private utility services and <br />individual detailed stormwater system(s). <br />EUGENE-SPRINGFIELD ALBANY <br />310 Sch Street, Springfield, OR 97477 1 p: 541.746.0637 I www.branchengineering.com <br />