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Table 3. Measured and predicted detention times. Average" MOaswred Predicted _ Application overland detention detention _ oT. Location rate fiowrate Slope time, Tp time, Tp Tp-Tm and dote (m' h(-') (m' hr' m') (95) (mini (min) (min) Utica,Miss. 13 July 78 0.584 .0.097 4 75 108 33 14 July 78 0.584 0.097 4 60 108 43 21 July 78 0.584 0.097 4 75 108 33 21 July 78 0.584 0.097 4 90 108 18 20 July 78 0.435 0.072 4 130 146 16 2 Aug 78 0.292 0.049 8 255 170 -45 2 Aug 78 0.292 0.049 8 255 170 -95 3 Aug 78 0.435 0.072 8 150 - 116 -Y4 3 Aug 78 0.435 0.072 8 165 116 -49 17 Aug 78 0.435 0.072 8 120 116 - 4 17 Aug 78, 0.435 0.072 8 135' 116 =18 17 Aug 78 0.435 0.072 2 165 184 19 17 Aug 78 0.435 0.072 2 ISO 184 36 - 31 Jan 79 0.435 0.072 2 135 157 22 . .. - 31 Jan 79 0.435 0.072 2 150 157 7 8 Feb 79 0.435 0.072 2 165 157 8 25 Jan 79 0.435 0.072 8 120 99 -21 2 Feb 79 0.435 0.072 8 105 99 - 6 2 Feb 79 0.435 0.072 8 165 99 -66 10 Feb 79 0.435 0.072 8 96 99 3 10 Feb 79 0.435 0.072 8 135 99 -36 - 24 Jan 79 0.584 0.113 4 105 93 -12 15 May 79 1.753 0.292 2 90 45 -45 22 May 79 0.435 0.072 2 330 184 -146 Aug 79 1.753 0.292 4 50 36 -14 Aug 79 0.876 0.146 4 135 72 -63 Aug 79 1.753 0.292 4 65 36 -29 Aug 79 1.753 0.292 8 48 29 -19 11 Feb 80 0.219 0.042 2 207 314 107 12 Feb 80 0.435 0.084 2 112 157 45 12 Feb 80 0.435 0.084 2 120 157 37 12 Feb 80 0.435 0.084 8 90 98 8 12 Feb 80 0.435 0.084 8 75 98 23 13 Feb 80 0.876 0.169 2 75 78 3 13 Feb 80 0.876 0.169 2 75 78 3 13 Feb 80 0.876 0.169 8 60 49 -11 13 Feb 80 0.876 0.169 8 60 49 -11 i U.Orcalif., Uavis 0.118 0.079 4 21 17 - 3 0.236 0.157 4 13 9 - 4 0.345 0.236 4 11 6 - 5 n 40 mean 8 std.dev. 43 "At Utica,0.75 and 0.87 were used as overland flow coefficients for summer and winter respec- tively. A runoff coefficient of 1.0 was used at U.of Calif.,Davis. 8