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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01615000 plot. OPEQUON CREEK NEAR BERRYVILLE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 37.14 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


                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
1.04
4.97
6.24
11.4
27.2
59.5
102
136
317
 
51
February
0.88
4.51
5.85
10.8
23.6
54.9
95.4
123
406
 
50
March
1.35
4.74
6.76
13.9
31.2
70.1
112
142
414
 
51
April
1.41
4.99
6.96
12.6
33.0
71.6
119
148
397
 
46
May
0.77
4.14
5.75
10.3
24.6
56.9
107
143
251
 
49
June
0.89
4.62
7.17
13.0
32.5
68.8
110
140
333
 
49
July
0.86
4.38
6.20
12.1
28.2
61.4
104
142
397
 
50
August
0.86
4.86
6.47
11.2
29.0
58.2
102
134
296
 
50
September
2.26
5.27
7.20
12.2
28.8
67.6
109
143
334
 
51
October
0.51
4.54
6.45
11.7
25.8
54.6
100
131
225
 
53
November
0.90
3.46
5.32
10.6
28.6
61.0
107
127
250
 
52
December
1.49
5.18
6.67
11.9
27.2
63.7
107
156
420
 
49
 
       

The current 28-day running-average value for 03/22/2017 is 37.14 cubic feet per second.

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

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