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PUBL/C WOR/IfS <br /> � <br /> MEMORANDUM <br /> TO: Jim Miller � <br /> I , ' <br /> FROM: H�3atherKibbey��+ <br /> � <br /> DATE: January 4, 2012 <br /> RE: Proposed Boeing Railway Spur Stonnwater Drainage <br /> CC: Paul McKee, Tony Lee, Jane Zimmerman <br /> Jim Miller, Paul McKee, Tony Lee and Heather Kibbey met on January 4, 2012 to <br /> discuss the Boeing Railway project. This project has been at the City awaiting <br /> stormwater review since mid-October 2011. Review of the project was predicated on <br /> receipt of storm drainage infrastructure information for the entire Boeing site, and that <br /> has been delivered in both paper and electronic format. The above-mentioned staff <br /> reviewed the site plans and the map of infrastructure. Boeing has broken down <br /> drainage on the site into catchbasin "watersheds", which shows the extent of drainage <br /> from the site flowing into each catchbasin or grouping of catchbasins. We determined <br /> that moving the existing railway and adding 2 drains would not increase the stormwater <br /> from the site, which is already impervious. The ultimate destination of the stormwater <br /> remains directed to Boeing's stormwater detention ponds, which then flow into <br /> Powdermill Creek. <br /> The group also reviewed the October 14, 2011 Addendum No. 12 to the 1991 Boeing <br /> Everett Mitigation Decision Document SEPAlt11-044 issued by Allan Giffin, reaffirming <br /> thal stormwater on this site shall be managed in accordance with the 1991 EIS. The <br /> memo also affirms that temporary erosion control measures for construction activity <br /> must be operational prior to commencement of any clearing or earthwork. <br /> With these findings in mind, it is my recommendation that you sign the appropriate <br /> documents for approval of the stonnwater drainage portion of this project. <br /> S n��;�nn:m���:,iii��n <br />