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STORMWAI'[R �ITG PLAN <br />\1ADISON COM1f�[UNIIY CI�IUFCII <br />SITE BASIN <br />EXISTING SITE BASIN liYDROLOGY <br />This basin has a tributary arca of 2.d0 acrcs. <br />The basin has the following cxisting land uses and arcas: <br />Land Usc Arca(ac� <br />Roof & Pavement 0.12 <br />2nd Growth Fomst 0.50 <br />Gravcl 0.10 <br />La�vu 1.68 <br />The existing runof'frates are: <br />Ycar 2 yr 10 vr 100 kr <br />Runoffrate(cfs) 0.17 0.41 0.81 <br />Volume (c� 4,596 9,030 16,234 <br />See Appendix B for basin output. <br />DEVELOPED SITE BASIN HYDROLOGY <br />This basin has a tributary arca of 2.40 ncres. <br />The basin has the following dcvelopcd land uses and arcas: <br />Land Use Area(ac) <br />Roof 0.39 <br />Pavemcnt 1.61 <br />Landscaping 0.40 <br />7'hc devcloped runoff rates are: <br />Ycar 6 mo 2 yr 10 yr 100 vr <br />Runoff Ratc (cfs) 0.42 OJS 1.17 1.77 <br />Volumc(c� 5,954 10,420 1C,200 24,642 <br />Sec Appcndix B for basin output. <br />BYPASS BASIN <br />E�ISTING BYPASS BASIN HYDROLOGY <br />This basin has a triUutary arca of 0.13 acres. <br />l'hc basin has tlic following cxisting land uses and arcas: <br />Land Usc Arca(ac) <br />Gravcl 0.0G <br />La�vn 0.07 <br />Thc ezisting runotTratcs arc: <br />Ycar 2 yr 10 vr 100 yr <br />Runoff ratc (cfs) 0.02 0.03 OAG <br />Volumc (ct) 279 53l 941 <br />J'E4.eny Pa�� Commumly Cn�rc� - SIR Oi-028��ra�naget55P Maaisa� DOC�WHISRII <br />MAY 26, 2006 <br />PAGE 10 <br />