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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
02032640 NORTH FORK RIVANNA RIVER NEAR EARLYSVILLE, VA
LOCATION.--Latitude 38°09'48", Longitude 78°25'30", North American Datum of 1927,
                    Albemarle County, VA, Hydrologic Unit 02080204
DRAINAGE AREA.--108 square miles, (measured on USGS topographic maps).
PERIOD OF RECORD.--October 1993 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02032640 plot. NORTH FORK RIVANNA RIVER NEAR EARLYSVILLE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/22/2017 is 39.43 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


                02032640     NORTH FORK RIVANNA RIVER NEAR EARLYSVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
21.0
29.4
33.1
60.2
115
188
366
687
1,380
 
22
February
22.1
37.1
46.1
63.6
103
170
355
627
1,090
 
22
March
21.4
48.6
58.8
94.2
152
239
375
551
1,030
 
22
April
48.0
54.9
59.9
89.6
127
209
336
472
1,020
 
22
May
21.1
39.3
45.5
64.5
88.1
152
295
580
1,230
 
22
June
9.10
12.0
20.4
32.5
58.9
108
222
334
1,130
 
22
July
3.57
7.90
9.58
15.2
33.8
67.5
115
202
1,310
 
22
August
0.75
1.93
3.07
9.10
21.2
43.9
84.2
134
333
 
22
September
0.37
0.79
5.34
9.46
19.1
55.3
167
406
2,520
 
22
October
1.83
5.12
8.36
14.2
30.0
88.1
165
332
1,500
 
21
November
11.4
15.6
19.0
27.4
51.3
133
308
406
798
 
22
December
16.3
23.3
29.0
50.9
116
208
341
514
993
 
22
 
       

The current 7-day running-average value for 03/22/2017 is 39.43 cubic feet per second.

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

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