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Table 8 <br />IA as a function of vegetation cover <br />and average land slope for nata~ral areas <br />(to be used with the Green and Ampt <br />infiltration equation for estimating rainfall losses) <br />Surface Retention Loss (IA), inches <br />l4.verage % Ve eta tion Cover <br />Slope 0-10% 10-40% 40-80% 80-]L00% <br />1 2 3 4 5 <br />0-1% 0.4 0.6 0.8 1.0 <br />1-5% 0.3 0.4 0.6 0.8 <br />5-10% 0.2 0.3 0.4 0.6 <br />>10% 0.1 0.2 0.3 0.4 <br />Note: Not to be used in rainfall-runoff modeling with rainfalls <br />more frequent than 100-year. <br />19 March 2007 30 <br />