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Benyam Stephanos <br /> From: Arnie Roshak <br /> Sent: Tuesday, June 13, 2017 9:24 AM <br /> To: Trevor Louviere <br /> Cc: Kelsey Heyd; Benyam Stephanos <br /> Subject: RE: Brien Ford Stormwater Permit Question <br /> Trevor, <br /> See my responses in red below. <br /> -Arnie <br /> From: Trevor Louviere [mailto:tlouviere@aesgeo.com] <br /> Sent: Monday, June 12, 2017 1:26 PM <br /> To: Arnie Roshak <br /> Cc: Kelsey Heyd <br /> Subject: Brien Ford Stormwater Permit Question <br /> Arnie, <br /> I have begun preparation of the stormwater documentation for the permits. The questions are as follows: <br /> 1. Under minimum requirement#1 when looking at threshold discharge areas;the site is already developed and <br /> flow volumes and directions will be unchanged. Do I take the current catch basins on site to be the "natural" <br /> discharge locations, as this is an already developed site? The "natural" discharge location would be the existing <br /> conveyance system that the site currently discharges to. <br /> 2. Under minimum requirement#3 pertaining to source control: Is Figure 1.1 meant to be used in relation to <br /> construction activates or the final product?As far as the construction phase of this project only A5.1 for <br /> Demolition of buildings should apply. More would apply if I had to include all activities on site.Just looking for <br /> clarification here since some of the points appear to be activities of a finished development. Minimum <br /> requirement#3 would apply to the new work rather than entire site, and is intended to apply to permanent <br /> activities, however, one of those activities listed under MR#3 is building demolition, so A5.1 will apply. <br /> Construction is covered by MR#2,which includes element#9: Control Pollutants. <br /> Thank you, <br /> Trevor W. Louviere, PE I Senior Project Engineer <br /> > associated <br /> earth sciences <br /> incorporated <br /> tlouviere@aesgeo.com www.aesgeo.com <br /> Associated Earth Sciences, Inc. <br /> 911 5thAvenue Kirkland,Washington 98033 <br /> 01425-827-7701 F 1425-827-5424 CI 425-495-1344 <br /> This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed.Please notify the <br /> sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.If you are not the intended recipient you are notified <br /> that disclosing,copying,distributing or taking any action in reliance on the contents of this information is strictly prohibited. <br /> 1 <br />