USGS
Water Resources Data - Ohio, Water Year 97, Vol. 1 | Muskingum River Basin


			03136500 KOKOSING RIVER AT MOUNT VERNON, OHIO

LOCATION.--Lat 40024'20", long 82030'00", in sec. 2, T.6 N., R.13 W., Knox County, Hydrologic Unit 05040003, on right 
bank 300 ft downstream from Tilden Avenue Bridge at Mount Vernon, 0.8 mi downstream from North Branch, and 2.7 
mi upstream from Dry Creek.
DRAINAGE AREA.--202 mi2.
PERIOD OF RECORD.--February 1953 to current year.
REVISED RECORDS.--WSP 2107: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 981.16 ft above sea level.
   (Levels by U.S. Army Corps of Engineers.) Prior to May 21, 1991, gage at same site and at datum 3.00 ft higher.
REMARKS.--Records good except for periods of estimated record, which are poor. Some regulation by Knox Lake, capacity, 
3,750 acre-ft, 8.2 mi upstream on East Branch of North Branch Kokosing River beginning in 1954 and North Branch 
Kokosing River Lake, 14,886 acre-ft, 10.0 mi upstream on North Branch Kokosing River, beginning in June 1972. 
Water-quality data collected at this site. U.S. Army Corps of Engineers satellite telemeter at station.

	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       129       57      837      240      241      364      212      120     4870       96       63       46
   2        98       55     1010      228      217     1100      190      121     2970       93       57       46
   3        82       54      492      222      212      857      179      415     1400       82       55       44
   4        70       53      327      214      624      538      173      501     1000       75       58       41
   5        63       53     e230      243     1770      703      172      334      601       70       56       39
 
   6        59       53     e200      289      830     1690      180      281      398       68       50       38
   7        57       55     e180      228      483      876      165      232      309       64       47       38
   8        55       66     e170     e150      364      565      148      223      260       63       47       38
   9        54       74     e150     e120      302      453      140      407      226       74       46       38
  10        55       97      169     e100      270     1060      134      314      202       85       45       59
 
  11        55      102      462      e80      244      721      132      249      181       78       44       65
  12        53       94     1720      e70      229      484      151      212      167       70       45       57
  13        51       84     1090      e80      202      386      200      188      169       64       49       49
  14        50       78      566      e94      204     1050      190      171      163       60       49       46
  15        49      e76      384      e90      195     1090      169      176      142       57       51       44
 
  16        48       70      317      e80      175      587      157      162      137       55       67       42
  17        46       68     1340      e70      168      433      161      148      162       55      193       41
  18        51       77     1530      e60      175      373      167      149      168       52      185       39
  19        74       94     e680      e66      336      365      156      392      162       50      118       38
  20        85       94     e400      e80      463      336      144      291      149       48       94       38
 
  21        81       87      303     e100      447      303      137      204      130       46       87       40
  22        76       79      267      224      421      275      133      168      118       45       80       38
  23        75       74      273      604      318      248      127      148      107       46       72       36
  24        71       71     1670      377      258      228      122      137      100       48       66       36
  25        71       75     1220      651      224      217      124      641       92       48       64       36
 
  26        70      422      576      409      215      246      129     1600       88       53       61       33
  27        67      483      390      357      445      236      123      623       88      195       57       33
  28        65     e277      345     1070      493      219      136      360       82      155       54       32
  29        62     e200      340      551      ---      218      137      280       76      133       51       32
  30        61      173      297      362      ---      214      125      272       76       93       49       30
  31        58      ---      264      277      ---      222      ---      565      ---       72       48      ---
 
 TOTAL    2041     3395    18199     7786    10525    16657     4613    10084    14793     2293     2108     1232
 MEAN     65.8      113      587      251      376      537      154      325      493     74.0     68.0     41.1
 MAX       129      483     1720     1070     1770     1690      212     1600     4870      195      193       65
 MIN        46       53      150       60      168      214      122      120       76       45       44       30
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1953 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN     64.3      147      244      278      350      425      379      271      188      152     83.1     66.7
 MAX       275      635      979     1020      805     1068      845      820      586      636      438      587
 (WY)     1991     1973     1991     1959     1975     1963     1964     1996     1989     1990     1980     1979
 MIN      15.1     20.4     23.0     36.0     31.4      129      122     53.0     29.1     25.0     18.0     16.7
 (WY)     1964     1972     1964     1964     1964     1983     1971     1955     1955     1965     1988     1954
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1953 - 1997
 
 ANNUAL TOTAL                      123316                      93726                                             
 ANNUAL MEAN                          337                        257                        221                  
 HIGHEST ANNUAL MEAN                                                                        325              1973
 LOWEST ANNUAL MEAN                                                                          78.7            1954
 HIGHEST DAILY MEAN                  3210     May 12            4870     Jun  1           14600       Jan 21 1959
 LOWEST DAILY MEAN                     46     Oct 17              30     Sep 30               8.6     Aug 22 1988
 ANNUAL SEVEN-DAY MINIMUM              48     Aug 31              33     Sep 24              11       Sep 17 1985
 INSTANTANEOUS PEAK FLOW                                        6180     Jun  1           38000       Jan 21 1959
 INSTANTANEOUS PEAK STAGE                                         11.59  Jun  1              18.19    Jan 21 1959
 INSTANTANEOUS LOW FLOW                                           30     Sep 30               8.6     Aug 22 1988
 10 PERCENT EXCEEDS                   838                        565                        483                  
 50 PERCENT EXCEEDS                   166                        137                        103                  
 90 PERCENT EXCEEDS                    57                         48                         30                  
 
e Estimated.


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