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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
03164000 NEW RIVER NEAR GALAX, VA
LOCATION.--Latitude 36°38'50", Longitude 80°58'45", North American Datum of 1927,
                    Grayson County, VA, Hydrologic Unit 05050001.
DRAINAGE AREA.--1,141 square miles.
PERIOD OF RECORD.--October 1929 to current year. Monthly discharge only for some periods, published in WSP 1305.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Slight diurnal fluctuation at times caused by small hydroelectric dam 36.4 miles above station.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03164000 plot. NEW RIVER NEAR GALAX, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 10/14/2008 is 907.61 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


                03164000     NEW RIVER NEAR GALAX, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
489
717
908
1,410
1,990
2,510
3,130
3,680
6,240
 
78
February
555
904
1,150
1,610
2,240
3,010
3,620
4,030
6,430
 
78
March
643
1,220
1,440
1,930
2,510
3,300
4,050
4,590
6,360
 
78
April
960
1,320
1,510
1,820
2,540
3,580
4,630
5,460
6,990
 
78
May
789
1,140
1,300
1,640
2,050
2,700
3,490
4,050
6,450
 
78
June
610
882
1,010
1,280
1,690
2,330
2,950
3,580
5,700
 
78
July
403
694
798
990
1,330
1,720
2,330
2,990
5,400
 
78
August
389
574
665
921
1,170
1,570
2,000
2,610
8,740
 
78
September
378
501
614
790
1,020
1,390
2,130
3,080
9,390
 
78
October
376
509
559
689
1,030
1,530
2,470
3,360
6,710
 
77
November
398
540
590
750
1,230
1,960
2,800
3,490
7,750
 
78
December
504
627
690
1,010
1,550
2,190
3,130
3,580
7,640
 
78
 
       

The current 28-day running-average value for 10/14/2008 is 907.61 cubic feet per second.

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

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