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MF.HORANDUM ( �'( ���0 ry/� <br /> V u t% � <br /> SfP 2 2 �J <br /> T0: Kirk Brooks and Dave Tyler » 5 199 <br /> FROM: Stephen Stanley CITY Of � ""' <br /> SUBJECT: Building 40-42 Publfc yyorks�R�Tr ��� <br /> CC: <br /> DATF.: Septemher 24 , 1992 <br /> thateourfconcernslexpressedlin�therattached 9u2e92sletterato <br /> Boeing and 8-28-92 memo where not incorporated. <br /> 1) Setback from Stream Corridor A. Boeing has <br /> eliminated the road and retaining wall that intruded <br /> into the ESA slope above Stream Corridor A and Wetland <br /> H. However, the new plans show a fill and graded slope <br /> that is 10 feet higher that the existing natural top of <br /> slope and extends 25 feet down the ESA slope. <br /> Furthermore, the building's paved area is located only <br /> l0 feet from the new top af slope (e.g. 526� ) . <br /> The <br /> clear intent of the Decision Document is to keep all <br /> construction off of steep slopes associated with a <br /> wetland or stream, including fill and grading, and <br /> provide for a natively vegetated buffer of 25 feet from <br /> the top of slope. <br /> 2) Setback from Wetland G. The fill and qrading for <br /> the northwest corner of Building 40-41 parking lot <br /> extends into the 5o foot buffer for Wetland G. This is <br /> an existing vegetated buffer area that should not be <br /> physical{y altered; such alteration may effect the <br /> function� values and hydrology of the subject wetland. <br /> 3� Wetland Hydrology. The present plans do not shown <br /> drainage plan (or requested calculations) for transport <br /> of roof drainage to Wetlands G and H. <br /> 4) Buffer Revegetation Plan. A buffer revegetation <br /> p) an for the area above wetland H and stream A must be <br /> prepared by a qualified biologist/botanist. A <br /> landscaping plan for other graded perimeter areas must <br /> also be submitted and muad 'acentdforested areases found <br /> in (or compatible with) J <br />