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Lard Use a Surface Che mOwlets <br />Pecan - <br />Nouenees <br />Srainess: <br />Commercial areas <br />95 <br />Nalddorllood areas <br />85 <br />RMIdweis: <br />Single-Iamb <br />Multiunit (detached) <br />60 <br />Multiunit (attached) <br />75 <br />Has -acre 131 or larger <br />• <br />Apartments <br />80 <br />aldratrlel: <br />Nye areas <br />80 <br />Heavy areas <br />90 <br />Parks. caratahes: <br />5 <br />Playgrounds: <br />10 <br />Schools: <br />50 <br />Railroad yard areas: <br />15 <br />Undeveloped Naas: <br />Historical Flow Analysis <br />2 <br />Gree beb, agitated <br />OIFrie how analysis <br />(when lord use not defined) <br />46 <br />Stns: <br />Paved <br />100 <br />Gravel (packed) <br />40 <br />Driveways and **dawdle: <br />90 <br />Roof*: <br />90 <br />Lawns, sandy soil <br />0 <br />Lawns, clayey sof <br />0 <br />1. One Pradp tadon values for Metro Denver Area <br />Ream period In yeas <br />I 2 1 53 <br />1 35 <br />10 1 50 100 <br />1 81 2 20 1 260 <br />Depth in Inches <br />093 <br />II. Recommended Runoff Coefficients for Metro Denver <br />efer to Figures RO-3 through RO-51n Runoff Chapter <br />of USDCM. <br />Page 2 <br />