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l <br /> a <br /> J Final Stohilizafion <br />� 1 Prior to oLtaining final conswction approval,the sitc shall be staUilized, the structural 1TSC <br /> � mcasures removed, ancf drainage facili[ies cleaned. Disturbed areas of the site should be <br /> vegetated or othenvise permanend}'stabifized. At a minimum, disturbed areas should be sceded <br /> � and mulched [o provide a high likclihood that sufficient coaer�1'i11 develop shortly aCter 6na1 <br /> appro��al. <br /> � <br /> � � Analysis and Design of Runoff Control BMijs <br /> I � This section describes the hydrology and stonnwater system tor the proposed project. <br /> Er.isting Hydrology <br /> I � The CSR ntountain Vicw Business Par};is located within thrce"preanining"drainagc bzsins: <br /> Merrill & Ring Cn�ek,Glemvood Crcek, and Pigeon Crcek. The drainage lirnits of thc <br /> I f "devclopmenP' ba:.in that will be served by the proposed Associated Boule��ard <br /> in�ltratioiddetention pond are shown in Exhibit 1. This 66.9-acre area indudes po�tions of <br /> Associated Boulevard and ll prcposed devclopment lots. The G6.9 acre "deve]opmenP' basin is <br /> I within all 3 ot the aUove drainage basins and accounts for thc follo���in, basin areas: 56.G5 acres <br /> (Glcmvood Creck), S.S8 acres (Pigeon Crcch), and 1.�7 acres @4erri11 �C Ring Creek). <br /> r To comply with the City's reyuirement that no more than 5,000 square feet of a drvna�e basin's <br /> 1 area bc diverted in[o another basin, thc limits of the 3 basins wcre equalized to incorporatc thc <br /> proposcd devclopment lots. As shown in hatched :ireas of Exhibit l, lo[s dia[ were in hvo or <br /> � more basins were cither incorporated into or taken ou[of the Glcm��ood Crcek basin. However, <br /> ` Lot 3 on Shuksan �Vay, soulh of the FSA sitc,had to bc divided in half between MemII &:Ring <br /> Crcck :md Glcu�vood Crcek Uasin to stay tvithin the Ci[y's requirement of limiting basin arca <br /> I I di�•i:rsion. As a resul[ of this basin equalization, all 6G9 acres of Ihe "dcvelopment"Uasin will <br /> be �aithin the Glemvood Creck �ratershed and discharge inro the :lssociated Boulevard <br /> , infiltration/dclention pond. <br /> i <br /> I ` <br /> ` Developed Site Hydrology <br /> l <br /> The dcvclopment ivill consist of fi.7 acres of grnss a=id landscaping and 6Q7. acres of impervious <br />�i � area (Table 2). Under de��eluped cunditions, the bounda�ics of the subbasins will be changed <br /> : Gom their existing conditions. I lo���c��er, basin boundarics �a•ill be balanced such tha. die ne[ <br /> � chanec in area draining to cach suhbasin will be Icss than 5,000 square feet, as required by lhc <br /> � City of���cret[. <br /> I ` The project site �t�ill be di��ided into 11 separate commercial lots rangin� in size from 3 to <br /> � 5 acres. Lach of the commercial p:ucels will pro��ide their o�t�n on-site water qualit}'veatment. <br /> Ik <br /> � <br /> CSR A+sadolyd Bn,�le rsd Rer,sel koe 1Q01 <br /> � . Slor-'a��hrSiteF"m '6' � n ��� `n � <br />