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I'agc 3U of 41 <br />Pcrmit N�. �1'A-003197•G <br />�loditication I)ale: \1a� I. 2007 <br />c. 13�11's intrndcd lo �rap xdimcnt on-sitc shall bc loca�cd in x <br />manncr lo aeoid in�erferencc �+ith thc movcment of juvenilc <br />salmonids attcmpting to cntcr of7•channcl areas or drainagcs.' <br />S. Stabilize Soils <br />I:xposcd and unworkecl wils shaU bc slabilizcd by application of <br />cllc��ive l3i�iPs ihai preveni crosiun. :\pplicable 13biPs include; <br />hut arc nnt limi�cd ta. tcmporar� :md pcmiancM scrding. sodding, <br />mulching, plastic covcring, crosion control liibrics anJ mat�in�, <br />soil applic;ilion of pol�•;icn�l.unide (Pn\1). thc carly application ��t <br />�ravcl basc on arcas to hc pa��cd. and dus� control. <br />h. No soik shall rcmain esposed and um�orked for nwre �han ihi <br />timc periods sct lorth bclo�� to prcvcnt crosion: <br />\Vcst of�hc Cascadc Mountains Cres� <br />During Ihc dn scason (Ma� I-•.ept. ;0): 7 day.s <br />l�uring thc ��'ct sc�son (Octobcr I- April ±Ol: �_da�s, <br />�The time perioJ ma} hc ad,justcd hy a loc.il jurisJiciion, if Ihc <br />jurisdic�ion can shu��� Iha� locn� prc�ipitation cJa�a iustily :� diffcrcnt <br />:e�andard: <br />c. Soils sholl bc siahilizcd at ihc cnd of thc shili bcfore a holid��• or <br />._ ,�ccckcnd, if nccdcd, bascd un thc ��cathcr furccast. . <br />;J. Soil stockpiles shall he stabilized Gom �rusion, prulccteJ �� ith <br />sedimrnt trapping measures. and wherr possibie. be located a��ay <br />Gom .eturm dr,rin inlc�s. ��atcrnacs, and drain;icc channcls. <br />(�. Prolcct Slopcs <br />�a. I)csign and tonstruct cu� and lill slapcz in a manncr th��l will <br />minimizc crotiion. Applicahlc pr;icticcs inrluJc. hin arc not Iimilcd <br />lo. rcJucin� continuous Icnglh o(slopc �ci�h �crraring;md <br />cli��crsions, rtJucing slopc s�ccpncss, and ru�ighcning slopc, <br />surLucs (fiir cxamplc, track ��alkin�)_ <br />1�. (lf�-sitc slurm�va�cr (nnrun) or grounJ���atcr �hall hc divcrtcJ <br />a�e;�� Gom slapes and disWrhed ;ur,is ��-ilh intcrceplor dikes, pipcs, <br />and/or swalcs. OIl•siic stornnvatcr shnulJ hc managcd scpar;ucly, <br />fioin storm�+�:ucr gencr.i�cd on Ihc sitc <br />At �hc �op ul slupcs. cullcr� drainagc in pipc ,lopc drains or <br />�prutecicd channcls tu prcrcnl crr�si�m � <br />fcmporar}� pip�• slopc drains shall hanJic �hc pcak 10-minutc <br />vclocity of �low Irom a l�ypr I A. I U-ycar, 24-hour Ircyucnc�- <br />s�orm lor �hc dcveluped conditiun. Altemativcly, �he 10-}�ear, <br />