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m <br />x <br />N <br />~D <br />~- <br />w <br /> <br /> <br /> <br />TABLE 91-31-2 <br />DITCH DEBIGN BPECIFICATIONB <br /> B-1 C-1 8-1 H-1 ![-1 K-3 0-1 <br />D88IGN FREQIIENCY 10 10 10 10 100 10 100 <br />DEBIGN Q (cfs) + 17 15 4 14 75 2 114 <br />a a z 2 2 a 2 a <br />B 4 4 4 4 4 4 4 <br />BLOPE (FT/FT) 0.011 0.03 0.04 0.01 0.015 0.06 0.005 <br />D (FT) 1.15 1.5 0.55 1.15 1.6 0.45 2.1 <br />VELOCITY (FP8) 2.2 4.5 2.0 2.5 4.7 1.8 3.6 <br />REBPONBIHILITY TCC TCC TCC CYCC CYCC CYCC CYCC <br />+All of the above ditches have been previously approved under <br />Exhibit 13 of the C-81-071 Permit <br />