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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily 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 2007.
REGULATION.--Diurnal fluctuation caused by reservoir operation. Diversion estimated 1.3 cfs.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision 02034000 plot. RIVANNA RIVER AT PALMYRA, VA
Provisional Data Subject to Revision

                    

The current daily value for 10/14/2008 is 91 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of Daily 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
68.0
150
217
369
601
986
1,760
2,580
19,000
 
73
February
82.0
245
300
448
682
1,090
1,810
2,720
19,500
 
73
March
80.0
310
376
526
768
1,230
2,240
3,210
33,800
 
73
April
162
275
327
452
655
1,070
1,860
2,610
49,000
 
73
May
84.0
207
244
334
517
800
1,320
1,990
22,900
 
73
June
38.0
96.4
130
206
337
541
1,000
1,570
68,000
 
73
July
15.0
56.0
75.0
133
240
403
749
1,210
11,600
 
73
August
10.0
34.0
49.0
96.0
190
368
747
1,260
57,000
 
73
September
5.20
36.0
50.0
86.0
164
335
738
1,280
40,800
 
73
October
13.0
47.0
63.0
116
206
446
929
1,740
55,500
 
73
November
52.0
94.0
118
192
325
600
1,180
1,780
31,000
 
73
December
67.0
137
174
293
491
806
1,480
2,230
23,200
 
73
 
       
Instantaneous minimum flow for period of record = 5.20 cubic feet per second.

The current daily value for 10/14/2008 is 91 cubic feet per second.

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

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