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Pcrvious Landscn c Acrc1 O.OG 0.12 <br /> Total Pro'cct Area Acrc 0.65 O.GS <br /> 'Will bc lawn in the interim <br /> The proposed archive building improvements do not increase the amount of total impervious area <br /> ovcr what was assumed in thc approvcd master plan, therefore no adjustments are required ro thc <br /> existing pond for detcntion. The proposcd improvements do increasc thc amount of p "•ition <br /> gener�ting impervious surface than whnt was originally assumcd in the Master Drain� �'lan by <br /> 0.1 acres. liowevcr,this amoun[ is rclativcly small and within tBe tolcrancc allowcd b ,he City, <br /> thcrefore no adjustmcnts arc proposcd to thc existing pond for water quality as��•ell. <br /> Convevance: <br /> For purposes of conveyance and col Iection of stom�water runoff generated from the projcct arca, <br /> thc rational mcthod ���as uscd based on the 25-ycar design storni, using a prccipitation value oF2.6 <br /> inches. Please sec the conveyance calculations attached. <br /> I 1379-stomi n.�tivc.doc[PAT/p] %' <br /> �5 <br />