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. � <br /> 1. Ia[roduction. <br /> Thx ancloaea miticstion plan is aeslanea Lo replace the <br /> weclanas id�ntari�d by IES Associaces in che w��land <br /> delin�ation report �Appenoii 1 ) , <br /> The now existinp wetland is functionin0 ac a wa�er- <br /> coil�ction basin ior th� rorthern and w�s��rn portsonn oi <br /> th� site, tiow�v�r, b�caw� of th� Ciiy of 8ver�tt we�l�nd <br /> cod�a and concerna for water quality in tn� rtutiQation <br /> r+ecland, a Dlan waa desiqned with aurfac� w�ter from the <br /> roadw�y� and parklna loti to b� dir�ct�d throuQh a <br /> vraaslined awale syatem byDa�sanv th� propos�d mitipation <br /> aecland. The prcpos�d watlana mitiqation plan ia d�siqned <br /> co replace cne exls[1np wetlanas ac 1. 5:1 i•ation co sacisip <br /> �ne condationa of the City of Everett far acceptance at ics <br /> compl��ioii and not to requLre 1 year of monito�inp anc <br /> aasurance o= p�rtormance prior to the construction os the <br /> remain6er or the pro�eet , The mitiyasion wetland will <br /> utilixe rooitop waser aa a source oi charqinp the weclana <br /> aurinp tna xainy eeascn cr atter raan events durinp tne <br /> sprinq, swnmer, and fadl . Wicnout this water, the wetland <br /> Nould nave co be ch3rped uitn an arciiacial un!er source. <br /> Because oi the copopraphy. uells Ior such a aource� are <br /> imprac[ical Lo impossible. Thereiore, the only source ot <br /> xatar remaininp wouid ne City water supply. <br /> The mitlQatlon �lan wetlana area includas Lne 160U <br /> squaze teec oi wetland. [he meanaered outer perimeter, uitY� <br /> a 35 coot auster se�naex as raquired by tne Cicy oE Everecc. <br /> In aaaicion, the suriace water qrasalined swale syacem 1s <br /> locat�d b�twe�n tne buLier and dev�lopments, aaainp an <br /> adaitsonal aeparation betw��n tne actual watlana and parkinp <br /> lotn or �he ensrance road to the d�v�lopment site. <br /> The combined suriace water treatment nystem, buffer <br /> sYstem, ana wetland includea a collection basin for the <br /> waLers [hat exceed the catryinq capacity of the culvert that <br /> ieave the nita unn�r Casino Road. This basin Will collec� <br /> and hold additional runoff until it ii meter�d under Casino <br /> Road. If the combined rooftop system and aurtace water <br /> runoii do not exceed the carryinq capacity ot the culvert . <br /> tne re�ention basin will , in efrecc , act as a floW-chrouqh <br /> eysLem. <br /> 2. Ueaipa. • <br /> Tne mitlpatlon siLe 1e ban1ca11y square, extenainq srom <br /> �he sou[h property boundary anuttinq wesL �=sino Roaa co che <br /> development eaQe on the aorth ana irom Lne east propercy <br /> bouanary co tne entry roaa on tae weaL. :ne wetland ccrt_on <br /> oL tne mitiaa[ion area wsll ce as •tiatanp qround levei . <br /> This oorcion oi tha arsa Nill be scraoea and clearec oc <br /> exis�ina veqecation which is aortunacea by a mix or <br />