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R'orksheet 2: Runoff curve number and runoff <br />:• <br />_ • <br />• <br />Project SDH$4 ARF A "A" By DGA <br /> <br />Location V - DI~I AROUfID DRILL PAD Checked <br /> <br />CSrcle one: Present Developed <br />1. Runoff curve lumber (CN) <br />Dace 7/1/93 <br />Dace <br />Soil name <br />and Cover description 1/ <br />CN - Area Product <br />of <br />hydrologic <br />group <br /> <br /> <br />(appendix A) (cover type, treatment, and.. <br />hydrologic condition; <br />percent impervious; <br />unconnected/connected impervious <br />area ratio) ~~ <br />N <br />y <br />y <br />Fm„ <br />i' <br />`~ <br />oo <br />~ <br />~i <br />N <br />~ <br />w <br />®acres <br />^mi2 <br />^ X CN x area <br />MOYERSON <br />"D" RANGIIAb1D POOR CGl~IDITICtcI <br />508 GROU[~ID COVER <br />89 <br />0.67 <br />59.63 <br /> <br /> <br /> <br /> <br /> <br /> <br />1/ Use only one CY source per line. Totals s 0.67 59.63 <br />total product 59.63 89 <br />CN (weighted) total area ~ 0.67 ~ Use CN 89 <br />2. Runoff <br />Frequency .............................. yr <br />Rainfall, P (24-hour) .................. to <br />Runoff, q .............................. in <br />(Use P and CN with cable 2-L, fig. 2-1, <br />ur eqs. 2-3 and 2-4.) <br />Storm Ill Storm 82 Storm b3 <br />lOYR 25YR <br />1.4" 1.8" <br />0.55 0.86 <br />42-1 <br />U-_' ('Llu•b'I-TF{-S:i. Second Ed.. June 1986) <br />