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_ __ <br /> � . Rf19�09- 1996 13� 51 FRON MUFFR7-TOB'IRSON. INC ' T� 25?8856 P �� � � <br /> � _...� rt• <br /> ----'-=-------- ' 206::EE9'_36 , NCKJSIPJG F'^'.?E PAGE 83 <br /> 09%9°�195G 0E:25 <br /> BYDR�OLIC PROJlCT I <br /> aPrR0V71L <br /> R.C.R. 7i.i0. 100 �ic�r or r,��s <br /> � C.f. 78.20� 303 own n icson �ido. <br /> 0 • •September 4, 1996 0���• � �� <br /> OEPApTNEMi Oi FtiI1E�SE5 � ��� �' <br /> Cepplle�nt ahoulr ref�r to tFi� o-dt� tn �lt corrrspordxK�) <br /> PAr��fF 3 iA0/s <br /> `JUST MAItF .y. TAC PNOME<S) .Cd11T001 M�MFII I <br /> Hope Villags LifiiteC! Partners�pq(206} 158-Z214 � 00-05714-�1 <br /> iz wt�Piq�on Cr�ek --- — y ;�►� .._._ <br /> 07 . 1722 <br /> 8. Stsvetur�s cor,$Aining ^oncrat• shal1 lse aufficieiltl C�r�d prlor <br /> to Contaot wit.h water tc avoid leaehing. Fresh con�rete shall not <br /> he al].awed to come in contaat with the stTeam. � <br /> 9 . All treated wood shall be proYeesio�yally treated �tnd completely I <br /> cured prior to instal2ation to minimize leachin into the water or <br /> eubstrate. The u�e o£ wood treated witY� creoso�e or pentachloro- <br /> phenol is nvt authoriasd. . I <br /> 10. ADOITIqN11L TIMING RESTRICTION3: InsCallation of t2ie sto�nwateY <br /> ouCfa3ls ghall be conducted b�fore OCtober 15,. 1996. Remaval of <br /> the existing culv2rts, xesto]Cation of the 3tXeami�ed, and construc- <br /> tion of the pedestr.ian bridge6 staall be conducted batween July 2 I <br /> i� and october Z� , 1997 , i <br /> � � <br /> ; 11. 'rtastewater �rom pzaject activ:.i:i�s and devat rlli9 shall b� routed <br /> to an area outside the ordinaxy high waCer,l�nt to alloW remqval <br /> of ffne sediment and other contaminants prior to being discharg�d <br /> ' to s�ate watAYs. i <br /> � 12 . Det�sntion and biofiltrAtion cf stormwater shall ba provided in an I <br /> i oper� vault with dead storaqe and in an underground pipe with dead � <br /> ' 6toraqe. . . <br /> 13 , Stormwater x•e7,ease ratRs eh�ll matcti pos�-develo meltt ratas to <br /> those oE re-d�veiopment ba�ed an the 2-year lg-yea�, ancl 1oo-year � <br /> I 24 hour s�orm avents. Tfie releaA� raCe for t�ie post-dBveYQp�ent <br /> i-year stcrm �vent s•ha11 equal 1/2 vf the f2ow f�r at pTpdevelopment � <br /> i 2-year storu� event. <br /> I <br /> 14 . R'he detention vault shall be Veqetated wi.th water-wolerant tre��s, <br /> � bu�hes, planf.�s, and grasses. <br /> ! 15. Tl�e detention facilities shal'� be maintained as neCessary ':o asliuze <br /> �� it functions to design apecificati4ns. <br /> 16. The qutfalls aha�l be suffiCiently atmored with quarry rock to � <br /> preve.nt any streambank or bed erosiun. <br /> ij <br /> 17. G�sturbance �of tho streamhed a�id banke sha:tl be limited to that <br /> 'j necessary te remove the culvertg and any rer�tirad channel modif.ira- <br /> � bion asaociatad s+ith it and ta ��nstruct G�e outfalls a»d bridges . <br /> Affected streambed and �ank arsau outsi�3e the culvert and associated � <br /> � fill shall be restored to repYo'ect cc�:nfiguration folloainq I <br /> installation of zhe culver� Wi�hin on�e year c! ro7 eat ccmplet}'q�•�, I <br /> the b�nkC ahnll ba �-evtgttdt.Cs wiLl� native or oth�r 8ppt-ov�c! wo�d,y ; <br /> � <br /> i <br /> I <br /> �._ . ' <br /> ('J rt�v iaiieia� <br /> I � <br />