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. i <br /> � <br /> � <br /> BARGHAU�EN CONS�LTING ENGIfdEER:S, IfdC. <br /> "Land Planning, Survey, and Design Specfalists" <br /> '�da� �,�iohl �i�qnd <br /> -:......�.l3ii.:.�'�:� =(1 �,.:I� <br /> ............. <br /> ..._,::..,�, <br /> b861 S� d3S <br /> September 21 , 1984 <br /> (�' � � G � a � � <br /> �EQ � � 1984 <br /> Mr. Eric Palmer <br /> Harmon b Associates <br /> 11000 Lake City Way N.E. <br /> Fourth Floor <br /> Seattle, Washington 98125 <br /> Re: Everett P�iall Offica Park/Additional Paving <br /> Our Job No. 110� <br /> Dear Mr. Palmer: <br /> In accordance v�tth yeur request, we have revlewed tha exfsting <br /> detent!on system which was approved by the City of Everett on Aug- <br /> ust 11, 1980 (per Trlad Assocfates� drawing, dated June 27, 1980, and stamped <br /> by Triad�s office on June 30, 1980, under their Job No. 79-390) . ? ,e det�ntior� <br /> system was desfgned and installed to accommodate additional future asphalt;ny <br /> at the Everett Mall Offfce Park. It is our optnion that the existtng <br /> parktng lot can be extended to ihe west and to the north, In accoruance <br /> wtth your current expanston plan, without maktng modifications to the retention <br /> system at thls potnt fn tfine. i+ should be recognized, however, that ln <br /> the event the balance of the propsrty ls covered with an impervious surface, <br /> additional detentfon wili be necessttated to compensate fur the reduction <br /> in the pond volume, resulffng from any encroachment fnto the present detentfon <br /> pond. Care should be exer�lsed to (nsure that Outfall No. 2-A ts not obstructed. <br /> If we can be of further assistance, do not hesitate to call . <br /> Sincerely, <br /> `V� <br /> H. Wayne Gi s, E. <br /> Engineering Man <br /> H4'G/Jds <br /> B-1109.01 <br /> 6625 South 190th, N102 • Kent, Washington 98032 • (206) 872-5522 <br />