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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
02011500 BACK CREEK NEAR MOUNTAIN GROVE, VA
LOCATION.--Latitude 38°04'10", Longitude 79°53'50", North American Datum of 1927,
                    Bath County, VA, Hydrologic Unit 02080201.
DRAINAGE AREA.--134 square miles.
PERIOD OF RECORD.--October 1951 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--October 1951 to October 1984.
REGULATION.--Flows regulated since October 1984 by Back Creek Lake 11.3 miles upstream and since January 1985 by Little Back Creek 14.4 miles upstream.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02011500 plot. BACK CREEK NEAR MOUNTAIN GROVE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 08/27/2008 is 30.46 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


                02011500     BACK CREEK NEAR MOUNTAIN GROVE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
10.4
17.5
34.8
107
226
323
436
525
1,000
 
33
February
14.5
66.7
96.4
160
264
386
516
559
689
 
33
March
62.4
106
156
235
359
547
733
784
1,060
 
33
April
56.8
136
166
231
358
507
642
762
1,040
 
33
May
45.8
89.1
101
141
223
353
447
484
566
 
33
June
12.2
35.0
42.5
80.6
144
262
378
432
649
 
33
July
7.35
11.9
18.4
26.2
51.6
94.4
160
236
694
 
33
August
5.55
8.79
10.4
16.4
26.6
60.3
94.4
164
448
 
33
September
4.05
6.22
6.93
13.0
19.4
32.4
62.2
154
437
 
33
October
4.09
6.54
7.53
12.2
27.3
56.2
145
285
553
 
32
November
7.31
9.16
10.7
18.0
61.6
136
227
283
602
 
33
December
10.5
18.4
20.0
50.7
146
235
338
416
748
 
33
 
       

The current 28-day running-average value for 08/27/2008 is 30.46 cubic feet per second.

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

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