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. � � ' <br /> . / �j u U�- ����� <br /> • • � J. R. FRIEL 7� C0. �—� <br /> � ; ��1� Civi1 En�ineers `!�— <br /> ���'��_ � 9502 19th Avenue SE, Suite D <br /> �- �„\ Everett , 47ashington 9820%a <br /> ���� 337-3u00 <br /> \i` ���� <br /> � July 2R, 1978 <br /> �� / � <br /> Nr. Larry Callahan .; 1��� ,•'' <br /> City of EDepartment �� ' ���� .� �����9� <br /> Building <br /> City F:all � �Q. <br /> F.verett , Washington 9�2�1 �;.�y �,��.' <br /> Y <br /> RE: Colh� i:cnter <br /> Derr Larry: <br /> In acco�.•rl with the comment� corr..�unicated t,o our offir_e by <br /> Jc�n 0'Connor on Prids.,�, July 21, 1978, enclos�d herr;�ith are two <br /> ( 2) copies of thc revised St:orm Retention si.te plan �or the reference�l <br /> pro,jer,t , <br /> SpCc'lf3Cally, pleas� tlote that : <br /> 1 . Catch basins have been consoli.dat�d irito a sinple catcll <br /> ba�;.n located in the immediate vicinity of the 6 inch concret,e <br /> bi�ilding 'sewer at the low point of the parking lot , <br /> 2. A 2 1/4 inch diameter orifice outlet has b�en locatr-d <br /> in Ll:c catch ba�in. <br /> 3 • 3 inches of detentiun ponding ability have been provic9ed <br /> above the top elevation of the catch basin. <br /> t, . The orifice has been located 3 feet below the top <br /> elevation of the catch basin. <br /> 5. Appropriate re-contouring of the parking lot has U�en <br /> illustrated. <br /> Please revieia and approve at your earliest opportunity. It <br /> is our understanding that you are prepared to issue a, bui7rii!�'- <br /> permit on this pro,ject with the understanding that the above <br /> referenced itens would be incorporated cn the drainage plar.. <br /> Should you have any questions, please contact our otfice . <br /> Vcry tr ly yours, � <br /> � //- <br /> � . <br /> J �N B. FRIEL, P.E. , P.L.�. <br /> G�A : sln i�' - • <br /> ��%�i.���� " �� ��� �,�i_t.� <br /> Enclosures �-�/ �TEu� / <br /> 1�� 7 f'L�'� 1 J <br /> �( f�r.�A' / i l. (' � f <br /> cc : �•Ir . BnU Champi.on ,�,�;-� '„ 4' i'-. <br /> �`' �. <br /> J- LL;`, �� <br />