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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
01674500 MATTAPONI RIVER NEAR BEULAHVILLE, VA
LOCATION.--Latitude 37°53'16", Longitude 77°09'48", North American Datum of 1927,
                    King William County, VA, Hydrologic Unit 02080105.
DRAINAGE AREA.--602 square miles.
PERIOD OF RECORD.--September 1941 to September 1987, October 1989 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Some regulation in the past, during low flows, caused by mill on Po River.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01674500 plot. MATTAPONI RIVER NEAR BEULAHVILLE, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 08/28/2008 is 10.51 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 14-Day Average Streamflow
            Flow values in cubic feet per second


                01674500     MATTAPONI RIVER NEAR BEULAHVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
85.7
153
225
443
686
956
1,340
1,630
3,670
 
64
February
84.7
237
323
515
766
1,070
1,530
1,930
4,160
 
64
March
78.9
323
413
586
858
1,210
1,720
2,450
4,850
 
64
April
91.1
272
321
527
867
1,360
1,760
2,180
5,510
 
64
May
54.6
168
213
333
551
867
1,320
1,630
3,070
 
64
June
18.8
62.1
96.4
193
327
529
928
1,350
5,960
 
64
July
2.16
41.3
54.2
92.1
178
293
557
874
6,280
 
64
August
0.41
24.6
35.5
66.4
159
370
650
889
4,760
 
64
September
5.33
16.2
22.2
47.6
132
268
690
956
4,830
 
64
October
3.87
21.0
28.1
60.6
167
347
674
1,000
3,460
 
63
November
19.3
51.0
71.2
160
301
541
927
1,250
2,620
 
64
December
45.4
100
159
299
460
761
1,220
1,550
3,230
 
64
 
       

The current 14-day running-average value for 08/28/2008 is 10.51 cubic feet per second.

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

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