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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Streamflow
 
01643590 LIMESTONE BRANCH NEAR LEESBURG, VA
LOCATION.--Latitude 3910'03.4", Longitude 7732'09.3", North American Datum of 1983,
                    Loudoun County, VA, Hydrologic Unit 02070008.
DRAINAGE AREA.--7.88 square miles.
PERIOD OF RECORD.--August 2001 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
01643590 plot. 
LIMESTONE BRANCH NEAR LEESBURG, VA
Provisional Data Subject to Revision

                    

The current daily value for 02/25/2017 is 1.7 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


                01643590     LIMESTONE BRANCH NEAR LEESBURG, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
0.92
1.30
1.70
3.08
5.45
8.72
13.5
23.0
468
 
14
February
0.97
1.78
2.70
3.70
6.10
9.90
18.4
35.0
158
 
14
March
0.81
2.20
2.80
4.78
8.80
15.0
32.5
49.0
347
 
14
April
1.40
2.30
2.80
4.50
7.20
11.0
21.8
36.8
510
 
14
May
1.00
1.50
2.05
3.00
5.25
10.0
21.5
33.2
521
 
14
June
0.64
1.00
1.20
1.70
3.40
7.50
17.0
34.0
311
 
14
July
0.46
0.73
0.84
1.10
2.00
3.10
5.55
7.40
440
 
14
August
0.42
0.58
0.69
0.83
1.30
1.90
3.00
5.18
102
 
14
September
0.35
0.55
0.71
0.89
1.30
2.50
8.29
14.4
976
 
15
October
0.41
0.69
0.76
1.20
2.50
5.52
11.0
20.2
124
 
14
November
0.49
0.99
1.40
1.90
3.30
7.28
13.0
20.0
210
 
14
December
0.67
1.40
1.55
2.60
5.90
10.0
18.0
27.7
633
 
14
 
       
Instantaneous minimum flow for period of record = 0.27 cubic feet per second.

The current daily value for 02/25/2017 is 1.7 cubic feet per second.

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

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