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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
02034000 RIVANNA RIVER AT PALMYRA, VA
LOCATION.--Latitude 37°51'28", Longitude 78°15'58", North American Datum of 1927,
                    Fluvanna County, VA, Hydrologic Unit 02080204.
DRAINAGE AREA.--663 square miles.
PERIOD OF RECORD.--October 1933 to current year. Monthly discharge only for some periods, published in WSP 1303.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--Diurnal fluctuation caused by reservoir operation. Diversion estimated 1.3 cfs.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02034000 plot. RIVANNA RIVER AT PALMYRA, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/21/2017 is 178.71 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 7-Day Average Streamflow
            Flow values in cubic feet per second


                02034000     RIVANNA RIVER AT PALMYRA, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
72.6
162
213
386
654
1,110
1,850
2,560
6,180
 
81
February
84.1
230
299
451
711
1,170
1,920
2,810
7,510
 
81
March
83.6
309
394
569
873
1,400
2,220
2,890
9,270
 
81
April
183
298
351
496
730
1,230
2,140
2,810
11,900
 
81
May
97.6
232
279
377
593
927
1,500
1,980
12,100
 
81
June
52.4
122
160
239
388
627
1,160
1,730
16,800
 
81
July
16.0
64.7
82.9
143
267
444
810
1,120
5,850
 
81
August
13.0
36.7
55.4
109
202
393
856
1,250
12,100
 
81
September
5.60
39.1
53.0
92.7
176
357
803
1,510
10,400
 
81
October
13.9
47.9
66.7
116
212
480
1,120
2,100
13,400
 
80
November
50.6
97.1
125
192
322
643
1,200
1,790
11,100
 
81
December
75.4
144
176
302
547
960
1,600
2,230
7,690
 
81
 
       

The current 7-day running-average value for 03/21/2017 is 178.71 cubic feet per second.

---- Provisional Data Subject to Revision ----

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