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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
02058400 PIGG RIVER NEAR SANDY LEVEL, VA
LOCATION.--Latitude 36°56'45", Longitude 79°31'30", North American Datum of 1927,
                    Pittsylvania County, VA, Hydrologic Unit 03010101.
DRAINAGE AREA.--351 square miles, (measured on USGS topographic maps).
PERIOD OF RECORD.--June 1963 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--Small amount of diurnal fluctuation; cause unknown.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02058400 plot. PIGG RIVER NEAR SANDY LEVEL, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 246.46 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


                02058400     PIGG RIVER NEAR SANDY LEVEL, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
108
162
195
255
409
513
673
820
1,240
 
52
February
148
195
220
274
397
574
775
977
1,490
 
52
March
146
224
250
310
428
653
889
1,080
1,700
 
52
April
162
220
234
313
464
610
927
1,150
2,370
 
52
May
156
197
210
255
364
521
685
876
2,420
 
52
June
81.0
148
168
208
306
451
580
628
1,250
 
52
July
58.5
97.1
109
149
235
315
465
684
1,760
 
53
August
30.3
71.0
88.9
120
197
282
420
524
928
 
53
September
37.1
74.0
84.0
113
187
273
563
726
1,990
 
53
October
56.7
79.5
104
133
193
307
590
752
2,000
 
52
November
76.6
128
140
170
221
375
532
748
1,370
 
52
December
97.5
144
159
215
315
430
616
699
1,070
 
52
 
       

The current 28-day running-average value for 03/22/2017 is 246.46 cubic feet per second.

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

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