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. i <br /> ii. Soils - idantify soil typae and locations, and <br /> identify any araes with soils which ara unsteble, or <br /> would be subject to eroeion or lailure. Identify nny <br /> impacts on staep slopad ar�as and evalusta ths <br /> potential for unstable end eroding slopes, such as on <br /> th� wast sida o! Povdarsill Cre�k and Bo�inq's <br /> d�tention pond, and id�ntify mathoda for correctinq <br /> tha identified problems. <br /> iii. Topoqraphy - Daecriba, verbally and graphicelly, <br /> existinq and propos�d topoqrephic conditionsr id�ntily <br /> and evaluata any qradinq, construceion, or utiliti�s <br /> to ba located on 15t+ nnd 25t+ elopse. <br /> iv. Erosion/anlnrqesent o! land area - id�ntity any <br /> potential for eerthelid�e or ailtatlon thet may occur <br /> during or after construction, and any typicel or <br /> unusuel mathods which will ba necessary to avoid <br /> siqnificant eerthslidas and siltetion. <br /> 2. Air <br /> i. 1►ir quelity - identify and evaluate tha typa and <br /> source o! air eeiasions and ispacts on air quslity <br /> raaultinq from construction activity, eircralt <br /> production nctivity, aircraft op�rntions activity, and <br /> e�ployea/compnny vahicle movasent (transportation) . <br /> Any voletila compounds used in th� manulectnrinq or <br /> oparntions should be id�ntilied and th�1r methods o! <br /> storeqa, trensportation, disposal, and usa ahould b� <br /> avelusted. Identily and eveluate possibla n�s�ur�s <br /> !or mitigetinq advarsa air quslity ispacte lro� th� <br /> propoeel. <br /> 3. Weter <br /> i. surtnce watar mova��nt/qusntity/qunlity - Id�ntily <br /> existinq drninaqa faaturas auch es streaas end <br /> watlands, end conceptunlly foracest tha expectW <br /> surface wster runoff qusntity and qualiiy fro� th� <br /> davelopmant. Susaariza th� drainega i�proveHnts <br /> under conetruction or approved by tha City or County <br /> in Powdermill Creak (includinq Boaing�s propos�d <br /> Powder Mill Creak restoretion proqrem) and th�ir <br /> ebility to adequat:oly aontrol storm water quslity and <br /> quantity Prom the deva:oped site. Datermine i! ths <br /> deaiqn peresatars in Povder Mill Cr�ak (includinq <br /> weter quentity, quality, streem velocities, erosion, <br /> siltation, temperature, etc. ) will b� able to sustain <br /> fish hnbitet. <br /> 4 <br />