Water Data Report 1997
03265000 STILLWATER RIVER AT PLEASANT HILL, OHIO LOCATION.--Lat 40003'28", long 84201'22", in SW 1/4 sec. 18, T.7 N., R.5 E., Miami County, Hydrologic Unit 05080001, on left bank at downstream side of bridge on Laurer Road, 0.8 mi northwest of Pleasant Hill, 2 mi downstream from Painter Creek, 2 mi upstream from Canyon Run, and at mile 28.35. DRAINAGE AREA.--503 mi2. PERIOD OF RECORD.--October 1916 to September 1928, October 1934 to current year. Monthly discharge only for some periods, published in WSP 1305. Gage-height records collected at same site March 1922 to December 1963 are contained in reports of the National Weather Service. REVISED RECORDS.--WSP 523: 1917. WSP 1305: 1920(M). WSP 1908: Drainage area. GAGE.--Water-stage recorder. Datum of gage is 846.73 ft above sea level. Prior to Dec. 23, 1934, nonrecording gage at same site and datum. REMARKS.--Records good except for estimated daily discharges, which are poor. Sediment data collected at this site. COOPERATION.--Gage-height tapes and 8 discharge measurements furnished by Miami Conservancy District. EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of March 25, 1913, reached a stage of 17.5 ft. Discharge at site about 3 mi upstream, 51,400 ft3/s, computed by Miami Conservancy District. This stage is not comparable with present gage heights because of failure of levee in 1913. 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 89 62 3040 507 e320 1120 e560 202 13100 570 e74 61 2 72 60 2210 474 340 4140 482 216 12000 588 e68 59 3 65 58 871 435 387 2620 425 1220 6180 332 e66 56 4 60 55 543 402 2130 1250 387 1750 2530 249 e62 48 5 57 55 429 1210 4900 1880 376 795 1320 202 e60 48 6 54 55 394 1120 1870 3620 407 543 904 175 e56 50 7 52 62 353 550 975 1570 356 409 686 177 e54 50 8 51 94 333 e340 675 939 300 356 578 170 61 47 9 50 197 287 e250 502 771 276 340 545 194 63 57 10 51 132 250 e200 e400 1670 261 294 e520 239 63 68 11 51 124 315 e190 e350 1050 253 261 e500 184 65 105 12 52 102 2290 e170 e320 677 338 251 480 155 e70 65 13 48 78 2340 e160 e290 544 753 238 602 141 e76 55 14 46 e66 985 e150 e270 2330 477 221 834 130 82 47 15 47 e62 614 e180 e250 1880 371 207 429 121 86 46 16 44 e60 709 e200 e240 833 324 190 340 113 80 45 17 44 e66 5500 e170 237 627 305 182 312 100 113 42 18 57 e68 4310 e150 248 626 286 181 686 91 142 38 19 87 e66 1550 e140 305 1320 270 204 1060 90 112 36 20 81 e64 766 e150 416 874 256 271 473 86 109 41 21 70 60 e500 e210 896 656 244 217 348 e86 124 38 22 63 57 e370 e1400 1840 546 237 184 325 e88 104 36 23 61 57 e450 e3400 810 430 228 171 340 e92 85 36 24 59 57 5530 1260 520 377 221 165 266 e94 75 37 25 56 157 3700 813 420 363 218 187 240 e90 72 38 26 51 2620 1240 535 417 353 207 622 239 e94 69 33 27 54 1220 761 529 3320 316 192 484 224 e100 70 31 28 55 548 778 1780 2280 310 213 345 201 e180 70 30 29 55 373 1100 730 --- 2110 214 290 186 e150 65 32 30 63 543 768 e400 --- 1210 202 305 185 e100 63 28 31 63 --- 600 e350 --- e800 --- 2260 --- e80 63 --- TOTAL 1808 7278 43886 18555 25928 37812 9639 13561 46633 5261 2422 1403 MEAN 58.3 243 1416 599 926 1220 321 437 1554 170 78.1 46.8 MAX 89 2620 5530 3400 4900 4140 753 2260 13100 588 142 105 MIN 44 55 250 140 237 310 192 165 185 80 54 28 CFSM .12 .48 2.81 1.19 1.84 2.42 .64 .87 3.09 .34 .16 .09 IN. .13 .54 3.25 1.37 1.92 2.80 .71 1.00 3.45 .39 .18 .10 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1917 - 1997, BY WATER YEAR (WY) MEAN 133 295 455 620 723 929 841 480 462 269 148 118 MAX 1313 1909 2437 3961 2177 2433 2513 1700 3334 1295 1823 2127 (WY) 1927 1994 1991 1937 1950 1963 1922 1996 1958 1993 1979 1926 MIN 11.7 19.3 16.0 21.5 44.0 79.8 131 44.6 33.7 22.2 14.1 14.9 (WY) 1964 1964 1964 1977 1964 1941 1971 1941 1988 1977 1988 1954 SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1917 - 1997 ANNUAL TOTAL 277083 214186 ANNUAL MEAN 757 587 454 HIGHEST ANNUAL MEAN 775 1973 LOWEST ANNUAL MEAN 99.3 1941 HIGHEST DAILY MEAN 12900 Jan 19 13100 Jun 1 17400 Jan 15 1937 LOWEST DAILY MEAN 35 Sep 8 28 Sep 30 4.0 Oct 17 1920 ANNUAL SEVEN-DAY MINIMUM 39 Sep 2 33 Sep 24 8.1 Oct 11 1920 INSTANTANEOUS PEAK FLOW 15500 Jun 1 a 26400 Jan 14 1937 INSTANTANEOUS PEAK STAGE 16.02 Jun 1 18.46 Jun 29 1980 INSTANTANEOUS LOW FLOW 28 Sep 30 4.0 Oct 17 1920 ANNUAL RUNOFF (CFSM) 1.51 1.17 .90 ANNUAL RUNOFF (INCHES) 20.49 15.84 12.27 10 PERCENT EXCEEDS 2090 1280 1020 50 PERCENT EXCEEDS 269 238 144 90 PERCENT EXCEEDS 55 54 32 a Peaks above base shown in table of peak discharges and stages at continuous-record surface-water-discharge stations. e Estimated.