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�J <br />Gross Irrigation Application (inches) = <br />Gross Application (9): <br />x <br />450 x A <br />14 x 111 <br />450 x (15) <br />450 x ( ) "K <br />?{i (13) <br />. Q = Total flow rate, gpm <br />Number of CCC ditch shares: 7 -4 — <br />Note: 1 share of CC water equals 450 shares = 12.86gpm <br />Q =# CCC ditch shares x 12.86gpm (14) <br />T = length of application, hours (NRCS recommends 11 hr sets for flood irrigation) <br />A =area being irrigated, acres <br />450 is a conversion constant: <br />450 gpm = 1 acre - inch /hr <br />the area being irrigated, A, is determined using the following fonnula: <br />A = Set size or area (acres) = y <br />NxRxL <br />43560 <br />• 43560 - t�2 <br />3 <br />(11) <br />