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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
01654000 ACCOTINK CREEK NEAR ANNANDALE, VA
LOCATION.--Latitude 38°48'46", Longitude 77°13'43", North American Datum of 1927,
                    Fairfax County, VA, Hydrologic Unit 02070010.
DRAINAGE AREA.--23.9 square miles.
PERIOD OF RECORD.--March 1947 to current year (fragmentary prior to October 1947).
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 01654000 plot. ACCOTINK CREEK NEAR ANNANDALE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/22/2017 is 35.06 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


                01654000     ACCOTINK CREEK NEAR ANNANDALE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
2.30
5.60
6.84
11.7
21.1
38.8
69.7
88.4
266
 
68
February
2.71
7.59
9.49
14.3
22.5
39.9
69.5
102
347
 
68
March
3.07
10.2
12.7
18.3
31.0
51.2
88.6
115
349
 
68
April
2.54
10.1
12.9
17.4
26.4
44.0
77.6
111
282
 
68
May
3.31
7.90
9.71
14.3
22.6
42.8
72.3
90.1
344
 
68
June
1.73
4.87
6.44
10.1
16.5
30.7
63.3
98.0
826
 
68
July
0.27
1.91
3.11
6.62
11.2
26.1
55.7
81.1
458
 
68
August
0.00
1.57
2.43
4.83
9.74
20.7
51.7
84.8
463
 
68
September
0.04
0.81
1.63
3.72
7.60
18.3
61.8
106
854
 
68
October
0.00
1.54
2.33
4.65
8.69
22.0
49.3
82.6
293
 
67
November
0.99
3.31
4.33
7.53
13.0
27.4
55.4
82.0
273
 
68
December
2.13
4.65
6.50
9.84
18.6
40.9
71.2
98.6
275
 
68
 
       

The current 7-day running-average value for 03/22/2017 is 35.06 cubic feet per second.

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

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