Water Data Report 1997
03225500 OLENTANGY RIVER NEAR DELAWARE, OHIO LOCATION.--Lat 40021'18", long 83004'02", in NE 1/4 T.5 N., R.19 W., Delaware County, Hydrologic Unit 05060001, on left bank 500 ft upstream from highway bridge, 1,000 ft downstream from Delaware Dam, 1300 ft upstream from Norfolk and Western Railway bridge, and 4.0 mi north of Delaware. DRAINAGE AREA.--393 mi2. PERIOD OF RECORD.--October 1923 to September 1934, April 1938 to current year. Monthly discharge only for some periods, published in WSP 1305. GAGE.--Water-stage recorder and concrete control. Datum of gage is 878.00 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Oct. 1, 1950, water-stage recorder at this site 500 ft downstream at datum 1.72 ft lower. Oct. 1, 1950 to Sept. 30, 1985, at datum 78.42 ft lower. REMARKS.--No estimated daily discharges. Records fair. Flow completely regulated by Delaware Lake since 1951. Water- quality data collected at this site. Water-temperature data collected at this site. U.S. Army Corps of Engineers Satellite Telemeter at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,100 ft3/s Mar. 21, 1927, gage-height, 16.9 ft, site and datum then in use; minimum daily, 0.1 ft3/s Sept. 14-29, 1934. DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 381 19 742 962 383 1480 20 202 203 27 31 23 2 125 19 731 469 253 736 20 119 110 33 31 19 3 68 19 1460 234 63 31 20 72 55 44 30 19 4 43 50 1890 232 697 25 20 454 39 35 66 19 5 433 202 706 236 2080 45 20 1020 833 35 104 19 6 425 328 125 471 2830 1860 20 500 3280 34 56 19 7 28 178 123 707 1760 4180 20 262 4180 34 29 20 8 302 180 121 394 405 4000 20 335 4130 34 36 20 9 310 179 122 315 402 3620 14 193 4170 61 32 20 10 28 179 1020 298 402 2860 5.7 144 3140 162 34 20 11 24 179 2710 232 318 2150 5.9 238 897 158 34 20 12 19 289 1590 229 162 1060 6.9 189 131 125 35 19 13 19 281 2480 92 195 610 8.2 76 131 53 35 19 14 19 74 2900 23 208 561 7.1 43 131 25 35 19 15 19 74 2770 23 208 714 6.7 35 131 21 36 19 16 19 437 1270 83 208 1100 6.7 27 93 14 35 19 17 19 423 838 111 104 1270 6.5 471 48 23 78 19 18 20 116 2760 109 76 815 16 679 164 29 606 20 19 22 115 3600 108 223 291 32 438 130 25 514 20 20 21 114 1760 108 865 46 32 386 51 25 293 20 21 20 115 704 108 1150 46 39 732 36 25 149 20 22 20 115 695 211 1150 437 53 383 36 30 111 18 23 21 114 972 696 1120 561 68 125 36 32 110 19 24 21 114 1240 812 386 435 72 67 36 32 73 20 25 21 165 1240 641 12 140 73 106 36 32 41 20 26 426 1080 1940 626 12 181 464 1200 79 31 38 19 27 423 1850 1910 460 757 219 505 1940 90 30 38 17 28 76 1830 1030 749 1870 162 175 1530 52 30 32 18 29 20 1630 1020 1300 --- 162 108 769 27 30 31 19 30 21 801 1000 795 --- 162 268 250 27 31 31 19 31 21 --- 986 387 --- 112 --- 334 --- 31 31 --- TOTAL 3434 11269 42455 12221 18299 30071 2132.7 13319 22502 1331 2835 581 MEAN 111 376 1370 394 654 970 71.1 430 750 42.9 91.5 19.4 MAX 433 1850 3600 1300 2830 4180 505 1940 4180 162 606 23 MIN 19 19 121 23 12 25 5.7 27 27 14 29 17 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 1997, BY WATER YEAR (WY) MEAN 79.3 289 454 480 658 771 542 408 303 246 122 68.4 MAX 560 1442 1683 1790 2073 2087 1537 1618 1247 1723 1259 538 (WY) 1987 1973 1991 1952 1959 1963 1964 1996 1981 1987 1995 1979 MIN 10.8 6.53 7.81 20.5 18.4 117 16.3 33.1 8.19 12.6 18.2 13.9 (WY) 1965 1992 1992 1954 1964 1983 1971 1962 1962 1988 1988 1967 SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1951 - 1997 ANNUAL TOTAL 224294 160449.7 ANNUAL MEAN 613 440 367 HIGHEST ANNUAL MEAN 609 1973 LOWEST ANNUAL MEAN 137 1954 HIGHEST DAILY MEAN 4270 Jan 26 4180 Mar 7 5940 Feb 1 1959 LOWEST DAILY MEAN 15 Sep 12 5.7 Apr 10 1.0 Apr 15 1986 ANNUAL SEVEN-DAY MINIMUM 17 Sep 7 6.7 Apr 10 3.4 Apr 15 1986 INSTANTANEOUS PEAK FLOW 4380 Dec 11 6000 Jan 31 1959 INSTANTANEOUS PEAK STAGE 8.73 Dec 11 88.13 Jan 26 1952 INSTANTANEOUS LOW FLOW 5.7 Apr 10 1.0 Apr 15 1986 10 PERCENT EXCEEDS 1840 1250 1030 50 PERCENT EXCEEDS 179 112 94 90 PERCENT EXCEEDS 21 19 19
U.S. Department of the Interior |
U.S. Geological Survey
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