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� • <br /> Kirk Brooks <br /> To: Jane Zimmerman <br /> Subject: RE: 1001 N Broadway, building demo and parking lot construction <br /> Thanks Jane. I'll be forwarding this and some other stuff on Ding Ye. Let's see what he can accomplish. Kirk <br /> From: Jane Zimmerman <br /> Sent: Friday, August 28, 2015 2:40 PM <br /> To: Kirk Brooks <br /> Subject: 1001 N Broadway, building demo and parking lot construction <br /> Hi Kirk— <br /> I've approved the Drainage Design Memorandum, but I would like to see the engineers try to direct more ofthe <br /> pavement runoff to the bioretention systems—if feasible—with the grading of the parking lot... Ecology's <br /> recommended minimum size of bioretention systems is 5%of the contributing drainage area, and the planned <br /> bioretention areas are quite large relative to the amount of area draining to them. It appears to me that the <br /> bioretention areas could handle much more runoff and still be effective at reducing the volume of runoff from the site. <br /> If it isn't technically feasible to direct more of the pavement runoff to the bioretention areas,the design engineer(s) <br /> should provide us the reason/justification for not doing so... <br /> Another concern I have regarding the bioretention areas is the lack of any curbing around them—what will stop cars <br /> from driving into them? Perhaps a curb around the bioretention areas with curb cuts on the "receiving" sides would be <br /> appropriate. <br /> As always, please feel free to simply forward my comments to the design engineer(s). <br /> Thank you, <br /> Jane <br /> Jane Zimmerman, Sr. Engineer <br /> City of Everett Public Works Department <br /> phone: 425-257-8885 fax: 425-257-8882 <br /> e-mail.� jzimmerman(a�everettwa.qov <br /> 1 <br />