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� ��� <br /> ' �' � � ��PY � <br /> � <br /> , <br /> � <br /> t � <br /> :�; ; <br /> June 7� 1999 <br /> i. <br /> „_ <br /> ;i <br /> .e <br /> J-,ne Zimmerma�i <br /> City �f�verett <br /> Public WorksDepartment <br /> 3200 Cedar Street <br /> Everett, W�1 9$201 <br /> ge; Community Transit Kasch Parl:Maintenance Facility Expansion — Otak <br /> Project No. K8359.KOI <br /> Dear Ms. Zimmerman: <br /> �nclosed are copies of the plan set for the above referenced project �vhich have been <br /> submitted for review and approval. I am sending these to}•ou in advance along with this <br /> letter to confirm that we have addressed the stormwater conditions for the project, <br /> consistent with the City's requirements and our earlier telephone cmiversations. <br /> ' The proposed project is part of the pliased development of tl.e site in accordance with the <br /> � re«sed Mitigated Determination of NomSignificance for S�PA#G-83 (dated July 21, 1993) <br /> and the P'indings and llecision of the Hearing Examiner ior the approval oF the amendment <br /> to Concomitant Agreemer.t#953-83 (Rezone#i•83; dated SeptemUer 19, 1993). The <br /> stornnvater detention and waker quality treatment facilities for tne site �vere designed by <br /> ;Reid Middleton and installed under an earlier project. These facilities were intended to be <br /> designed with a capacity for the ultimate build�ut condition approved in the SEPA and <br /> Caicomitant Agreement. � <br /> The detention vault, flow control structure, and bio6ltration system were desigr�ed for a � <br /> developed site conclitioa with a total impervious area of 13.1 acres, an increase of 5.0 acres, I <br /> according to Reid Middleton's final stori�nvater cal�ulations (File#21-93-011-002-02, <br /> ugust 24, 1993). The proposed project, as shown in the enclosed plans, results iu a total <br /> imper,rious area of 12.2 acres, including buIlcling roof areas. This is much less than the <br /> ��sign value of 13.1 acres. Also, the piroposed improvements reduce the total paved surface <br /> ea subject to vehicular use by approximately 9i5 square feet (OA2 acres). For this <br /> ason, the stormwater improvements proposed are limited to collection and conveyance. � <br /> � � � � � d � n � � R <br /> AHGHITECiUHE � <br /> .WaY� SUI�C 1�� ��N � 7199� ENGINEEHIHG <br /> .shing��n 98033•6021 i.nnoscare <br /> 16 � AFCMITECTUHE ' <br /> CI'fY OF EVERETT "`°""'"` <br /> -957T SURVEYING d <br /> m - Permit Services <br /> MAPPING <br /> URBAN OESIGN <br /> bl�� I' <br />