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�' <br />OE➢MTIIENT Of fISIiERIES <br />{�-jLASt N/ME <br />� Frontier E <br />HYDRI,OLIC PROJBCT <br />APP80VAL y <br />R.C:*. TS.ZO.SCIO DEPARTIIEMi OF FISNER[ES <br />R.C.A. 75.20.203 a'^���� ��ntstra=ian �tdp. <br />o�y�t., w:n;rotw+ sasoc <br />a August 29 , 1992 �• tsoa) 753•bb5o <br />(applteent ahould refer to ehls dass in atl eorrespondenee) <br />OACE 1 OF z FAGES <br />P.O. Box 2215, ATTN: Earl Carey <br />6-02 <br />0070 <br />i,icaM��• r twrMi rp U TYPE OF PROJECT <br />NoYth Creek ammamish River Stormwater <br />��11AR7ER SEC7t W+ iC11MtM[P RlWGE<E-Y) COUNTT � � -- � — � "�' — <br />uttia� NE 24 28N 04E Snohomish Manaqnment <br />—__....------------------------- ----------- <br />TIME LI�SIT7ITIONS: O TN14 PROJLCT MAY �[G1M a µD IyST BE CONY�ETED BY <br />Immediatel Octobar 15, 1993 <br />7MiS APPRQVIL i3 T0 8E AVJ11 LABC� TMf JW SiTL RT ALL T[NES �ND [TS PYOVIStOMS fOLL0YE9 6Y TXE CfRM[T7[[ AND �ERAiOQ PEAFORMINC <br />TME YORK• , _ <br />.t'C► IYPORT NT .gN .�1. pROV. MXS ON RRVi RS:: V1�V, flP AVPROVAI. <br />1. Detention of stormwater shall be provid�d in a two-cell open pond <br />with six (6) Ynchas of dead storage. <br />2. Raisase rates shall match ost-d4velo m�nt rates to thosa ot <br />3. <br />4. <br />5. <br />6. <br />pre-development, as� indica�ad in the drainage raport submitted <br />(FrontiQr Bank, Perteet Eagineerirtg, Inc., June 1992). <br />Equipment shall not enter or operate in the stream. <br />Spoils shall be stockpiled outsida o! ths llood plain: <br />No dirt sedimenta, or other substances dti�terious to fish shall <br />enter tfie stream. <br />The second c�ll of the pond ehall be lully vaqstated with.water- <br />tolarant grasses. • <br />7. Al2 stormwater shall pass through a minimum of 200 laet of proparly <br />dcsigaed grassy swale for biafiltration prior to discharge 3nto the <br />stream. . <br />8. The swales shall be tlat-bottomad and designed to transport the <br />2-year storm flows at a rate o! 0.5 to 1.6 f��t per second at a <br />depth of not more than four (4) inches. , <br />9. The swales shall ba lully vegetated witri water-tolerant grasses <br />prior to thQir use !or Water transport. <br />s�p�: City of Everett, MDNS, 7-2Z-92 <br />Remau� iuut�ira�T�• Rich Johnsoa (206) 339-3876 <br />vuao� - <br />MiLIGMT • YILDI[FE � NEMER • GATROL • XAt. MGq. •{&tIA <br />DEPARTML'D7T OF <br />s, <br />►UJl5�L50 U � <br />LJ l� AUG 2 5 1952 <br />...................................... <br />G11 � ' � EVER�TT <br />. �ri.�i �owi er <br />� <br />