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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
01615000 OPEQUON CREEK NEAR BERRYVILLE, VA
LOCATION.--Latitude 39°10'29", Longitude 78°04'42", North American Datum of 1983,
                    Frederick County, VA, Hydrologic Unit 02070004.
DRAINAGE AREA.--58.2 square miles.
PERIOD OF RECORD.--October 1943 to September 1997, October 2002 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015 except July 1988 through September 1997.
REGULATION.--Wastewater treament plant inflows from July 1988 through September 1997.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.

     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision
01615000 plot. 
OPEQUON CREEK NEAR BERRYVILLE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/22/2017 is 75.29 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


                01615000     OPEQUON CREEK NEAR BERRYVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
0.50
3.89
5.47
10.4
23.0
51.1
114
182
1,110
 
50
February
0.37
3.54
5.14
9.72
21.9
58.2
123
176
674
 
52
March
0.39
4.64
5.89
9.25
19.2
47.1
114
174
777
 
51
April
0.33
4.48
6.13
9.40
21.9
48.2
111
185
778
 
54
May
0.41
3.42
4.87
8.95
20.2
44.8
118
179
491
 
50
June
1.39
3.96
5.65
9.41
19.7
41.5
87.3
135
1,130
 
51
July
0.94
3.54
5.13
9.71
20.8
48.4
114
169
724
 
48
August
0.27
3.71
5.13
8.76
19.0
48.9
98.9
152
1,150
 
50
September
0.87
3.94
5.50
10.3
22.3
51.6
118
183
1,150
 
53
October
1.13
4.16
5.65
9.68
19.5
43.1
97.1
144
808
 
49
November
0.53
4.50
5.80
10.0
21.7
51.4
122
196
785
 
48
December
1.00
3.77
5.27
9.40
22.4
48.4
122
189
1,060
 
48
 
       

The current 7-day running-average value for 03/22/2017 is 75.29 cubic feet per second.

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

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