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Melanie Curtis <br /> From: Luke Schwitzer[LSchwitzer@minnehahacreek.org] <br /> Sent: Friday, May 06, 2011 4:03 PM <br /> To: Amundsen, Darren T; Melanie Curtis; Joseph Barten; Steve Christopher <br /> Cc: Tom Kellogg <br /> Subject: RE: MCWD Permit 10-285 - 3382 Bayside Rd 5-5-11 <br /> MCWD had a similar understanding regarding the phases of site grading at this project.The spirit of our erosion control <br /> regulation revolves around the preservation of existing vegetation and avoiding any soil disturbance until a permanent <br /> stabilization plan is ready to implemented thereafter. During the April 27 site meeting, MCWD staff expressed <br /> disappointment to the builder that the entire site appeared to have been graded or altered before they were ready to <br /> move forward with the final landscaping work. Obviously,this is the case on any permitted site—but it becomes much <br /> more relevant on a site like this with a greater potential for impact to surface waters. <br /> Any improvements made to erosion and sediment control BMPs on site are temporary, and MCWD staff is anticipating <br /> final grade and permanent stabilization (seed and blanket)within the coming weeks. <br /> Concerning the streambank stabilization: <br /> MCWD isn't in a good position to require a bioengineering revision to their plan at this point.They met the shear stress <br /> threshold (>5 Ibs per sq.ft.)to allow for structural stabilization. Granted,their initial plan submittal looked like a <br /> proposal of 8 rows of stacked boulders and that has been revised to 2-3 rows of puzzle stacked 36" boulders. For the <br /> most part, the current revision calls for streambank slopes at 3:1 or better—the exception being upstream from the <br /> footbridge where road and shoulder grade needs to begin to be met again. <br /> It looks ok on paper, and my biggest concern is seeing it get to that point on site—and in compliance.Joe Barten and I <br /> will continue to keep the city informed as we get out there. <br /> Luke Schwitzer <br /> MCWD Compliance Officer <br /> 18202 Minnetonka Blvd. <br /> Deephaven, MN 55391 <br /> 952-641-4505 <br /> www.minnehahacreek.or� <br /> `�� �" <br /> MINNEHAHA CREEK <br /> WA7:RSM;D OIST�t:CT <br /> From: Amundsen, Darren T jmailto:Darren.Amundsen@bonestroo.com] <br /> Sent: Thursday, May 05, 2011 10:35 PM <br /> To: mcurtis@ci.orono.mn.us; Joseph Barten; Luke Schwitzer; Steve Christopher <br /> Cc: Kellogg, Tom P <br /> Subject: MCWD Permit 10-285 - 3382 Bayside Rd 5-5-11 <br /> 1 <br />