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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Streamflow
 
01652500 FOURMILE RUN AT ALEXANDRIA, VA
LOCATION.--Latitude 3850'36.0", Longitude 7705'09.1", North American Datum of 1983,
                    Arlington County, VA, Hydrologic Unit 02070010.
DRAINAGE AREA.--12.6 square miles.
PERIOD OF RECORD.--October 1951 to September 1969, October 1973 to September 1975, July 1979 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.

     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision
01652500 plot. 
FOURMILE RUN AT ALEXANDRIA, VA
Provisional Data Subject to Revision

                    

The current daily value for 02/23/2017 is 4.4 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


                01652500     FOURMILE RUN AT ALEXANDRIA, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
1.70
3.40
4.00
5.30
7.60
12.0
30.0
59.0
467
 
40
February
2.50
4.00
4.70
6.20
8.60
14.2
35.9
74.3
860
 
40
March
2.50
4.70
5.30
7.20
10.0
18.0
49.0
98.9
456
 
40
April
2.40
4.60
5.00
6.40
9.30
16.0
41.9
77.9
726
 
40
May
1.50
4.20
4.60
5.60
7.80
15.0
41.1
74.5
587
 
40
June
1.20
2.90
3.50
4.70
7.10
14.0
47.0
104
1,280
 
41
July
0.90
2.00
2.50
3.78
6.10
12.0
40.0
77.7
584
 
42
August
0.70
1.50
2.20
3.30
4.90
9.00
37.7
84.0
938
 
42
September
0.80
1.40
2.00
2.90
4.10
7.98
31.8
87.8
1,220
 
42
October
1.20
2.00
2.10
3.00
4.30
6.70
20.0
70.4
973
 
40
November
1.20
2.60
3.30
4.10
5.70
8.80
26.0
70.0
475
 
41
December
1.90
3.00
3.50
4.70
6.70
12.0
42.0
74.2
614
 
40
 
       
Instantaneous minimum flow for period of record = 0.53 cubic feet per second.

The current daily value for 02/23/2017 is 4.4 cubic feet per second.

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

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