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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Streamflow
 
01673800 PO RIVER NEAR SPOTSYLVANIA, VA
LOCATION.--Latitude 38°10'17", Longitude 77°35'42", North American Datum of 1927,
                    Spotsylvania County, VA, Hydrologic Unit 02080105.
DRAINAGE AREA.--77.6 square miles.
PERIOD OF RECORD.--October 1962 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision 01673800 plot. PO RIVER NEAR SPOTSYLVANIA, VA
Provisional Data Subject to Revision

                    

The current daily value for 08/27/2008 is 1.4 cubic feet per second.

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


                01673800     PO RIVER NEAR SPOTSYLVANIA, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
5.40
14.0
20.0
40.0
65.0
109
208
333
2,710
 
45
February
5.70
21.0
31.0
48.0
74.0
116
228
404
4,130
 
45
March
5.40
28.0
36.4
50.0
79.0
134
285
505
3,680
 
45
April
8.50
25.0
29.9
41.2
64.0
111
198
364
2,280
 
45
May
3.00
11.0
14.0
23.0
40.0
72.0
149
251
2,100
 
45
June
0.37
2.84
4.90
8.90
19.0
38.0
83.1
143
8,160
 
45
July
0.05
0.83
1.60
3.60
9.10
22.0
55.6
94.3
1,400
 
45
August
0.00
0.30
0.67
1.80
5.70
17.0
40.0
70.0
2,870
 
45
September
0.04
0.20
0.42
1.00
4.00
13.0
43.0
82.6
3,330
 
45
October
0.04
0.20
0.64
3.10
9.70
27.0
74.0
168
2,780
 
45
November
0.16
2.44
5.00
11.0
27.0
61.0
129
258
4,210
 
45
December
1.40
8.90
12.0
26.0
48.0
85.5
167
316
2,270
 
45
 
       
Instantaneous minimum flow for period of record = 0.00 cubic feet per second.
Flow values of 0.00 are plotted as 0.01

The current daily value for 08/27/2008 is 1.4 cubic feet per second.

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

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Page Last Modified: 8/6/2008