Laserfiche WebLink
.. - Trepanier Engirreering <br /> � Pro7ESfiOna!Civil Enginee�i� <br /> � <br /> w. r <br /> �F W <br /> � �2 <br /> O <br /> � � <br /> � � <br /> DRAINAGE REPORT '" � <br /> DWIaYI� LANE f� gg � <br /> LUSE SAY AbDITION 'Qslp�r�, Q��' <br /> 10125 EVERGREEN YIAY <br /> �70R NO. 98-074 �xviaes 8� l2100 —� <br /> The proposed project involves the construction of a new <br /> service building and paving for additional parking. <br /> The stor�wateY yAnerated west of Olivia Road and south of ' ' <br /> Everett i�7a11 way all goes to a Regional R/1'i pond located (r a„}. p� <br /> south oL the p;:cposed pzo.iect (s) . No Retenti.vn/Detention � � �11 <br /> ?s pla*�ned for this projecC ;s) _ ) ,h\ <br /> water qualit� treatment wi11 consist of a wet pond with � <br /> plantinqs . The r�ond will be sized for the total area south <br /> of Ecerett riall Wa;� and wesl of Olivia Road even thouqh <br /> this project 2ncomFiasses a much smalJ.er area. <br /> See attached T.ribu..ary maP and calc�ilations for the sis <br /> (6) -month storm. <br /> Aead storag� of U.7_2 .Ac Ft is requir.ed �.n a d?ep and <br /> shallow u�ct pond. <br /> �ory� ��o�n s : <br /> fr�afmP�t c�ll �al�m�¢ = (9�o Z� 'x2G `�� 2 �l = /��U{�j 3 <br /> o(.eQp ��°lI ✓o lvmx = (�8. �'.S �X 2G 'x (a `J = 9 4So � 3 <br /> ,��-al vol�� = ��o � 3� 9�S'o� � _ /l, 3 ��.��= a°e�e-�- <br /> �rPa�� !PlI volvlrt? _ �� �f0 0� �/d� (�a�dm.Q J/dIG <br /> 1420 Hewitt • Everett,Washinflton 98201 • Everett (206)259-5558 • FAX(206)259•5538 <br /> 6/Z 3`]tld BS55 65L 90L'O1 'JN12133N1JN3 213INtld321S�W0213 9Z� II B6-6L-'Jfltl <br /> . . . . . ... . . ... . __ . . __ . ___ . _. <br /> . _ . . . - t�°:b.ay.. <br />