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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-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 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03164000 plot. NEW RIVER NEAR GALAX, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 08/27/2008 is not determined.

  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


                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
387
636
822
1,300
1,830
2,700
3,740
4,730
17,100
 
78
February
413
814
1,080
1,470
2,210
3,090
4,340
5,250
11,100
 
78
March
617
1,090
1,310
1,740
2,350
3,330
4,710
5,990
12,000
 
78
April
798
1,170
1,310
1,610
2,250
3,240
4,760
5,970
14,400
 
78
May
617
965
1,090
1,390
1,870
2,520
3,410
4,020
10,100
 
78
June
464
729
830
1,090
1,500
2,060
2,950
3,830
10,600
 
78
July
327
602
703
923
1,200
1,600
2,060
2,590
9,240
 
78
August
317
484
594
807
1,050
1,430
2,150
2,860
23,500
 
78
September
304
472
551
686
885
1,290
2,160
3,030
12,600
 
78
October
341
458
515
655
959
1,540
2,680
3,820
9,000
 
77
November
390
543
599
766
1,190
1,870
3,000
3,780
21,100
 
78
December
360
598
690
1,010
1,490
2,200
3,150
3,810
9,180
 
78
 
       

The current 7-day running-average value for 08/27/2008 is not determined.

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

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