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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01654000 plot. ACCOTINK CREEK NEAR ANNANDALE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 16.75 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 28-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
3.48
8.33
10.3
17.3
28.2
40.0
54.2
63.5
96.2
 
68
February
3.56
9.60
12.9
19.9
29.2
39.6
53.4
64.1
154
 
68
March
3.72
13.8
17.2
24.5
33.9
48.0
69.1
84.8
125
 
68
April
7.18
13.8
18.0
23.2
38.7
50.8
67.3
85.5
123
 
68
May
7.11
12.1
15.3
20.6
30.6
45.0
59.5
76.8
144
 
68
June
2.75
8.55
10.8
15.7
26.9
38.6
55.5
67.2
226
 
68
July
1.65
4.15
6.92
11.1
18.5
30.4
51.5
65.5
239
 
68
August
1.31
3.57
4.93
8.31
15.9
26.7
43.7
57.0
136
 
68
September
0.38
2.60
4.08
6.34
12.6
31.6
53.3
97.1
264
 
68
October
0.21
2.81
4.46
7.55
13.8
26.0
53.9
72.7
222
 
67
November
2.25
4.55
6.59
9.79
17.2
31.4
47.2
60.8
92.5
 
68
December
3.11
7.08
8.84
13.3
23.6
38.8
60.5
71.2
109
 
68
 
       

The current 28-day running-average value for 03/22/2017 is 16.75 cubic feet per second.

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

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