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Paul McKee � <br /> From: Tom Weller[Tmw@deainc.com� <br /> Sent: Thursday, November 17, 2005 10:52 AM <br /> To: Paul McKee <br /> Cc: Jane Zimmerman <br /> Subject: ABAM00000014 (RBTF Construction On•C:�II)- Runoff Flows toDownstream Defender <br /> Attachments: flows.pdf <br /> l eb� <br /> nows.pdr(1 Ms) <br /> Paul, <br /> Last week DEA provided the Cit.y a copy of. Nanson ConstrucCion's Submi.ttal S-D74 requesting <br /> thc use of Hydro Int�rnaCional's 'Uownstream Defender' instead of Stormwater 360's <br /> 'Vortech 1000' for water quality pre-treatment. Jane Zimmerman requested that DEA <br /> provided runoff flows entering the treatment train to ensure a 98-inch di.ameter <br /> 'Downstream Defender' was adequat�� in size. These flows are attached and aro encircled ir <br /> orange. Please provide DEA with a Letter of approval for this substiCution iY the chan9e <br /> is acceptable to the City. Thank you in advance for your assistance. <br /> Thomas Weller, P.E. <br /> Senior Transportation Engineor <br /> Uavid Evans & Associ_ates <br /> 1620 WesC Marine View Dri.ve <br /> Everett, lJA 98701 <br /> Pno�e: (42`i) 259-409'j <br /> 1 <br />