U.S. Geological Survey
Water Resources Data - Ohio, Water Year 97, Vol. 1 | Scioto River Basin



			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                  


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