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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 3810'17", Longitude 7735'42", 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 2015.
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 02/23/2017 is 22.0 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
15.0
20.0
35.0
62.0
105
202
328
2,710
 
53
February
5.70
21.0
28.0
45.0
71.0
116
222
370
4,130
 
53
March
5.40
28.0
36.0
50.0
78.0
135
284
498
3,680
 
53
April
8.50
25.0
30.0
42.0
63.0
109
188
348
2,280
 
53
May
3.00
11.0
15.0
24.0
39.0
72.0
160
281
3,070
 
53
June
0.37
3.30
5.10
9.40
20.0
39.0
86.0
144
8,160
 
53
July
0.05
0.90
1.70
3.60
9.30
22.0
53.0
89.0
1,400
 
53
August
0.00
0.35
0.78
2.10
5.90
16.0
37.0
65.8
2,870
 
53
September
0.04
0.22
0.46
1.10
4.20
13.0
44.8
96.4
3,330
 
53
October
0.04
0.20
0.64
3.10
9.50
26.0
68.0
160
2,780
 
53
November
0.16
2.56
5.50
11.0
24.5
58.0
125
251
4,210
 
53
December
1.40
9.20
12.0
25.0
47.0
87.0
174
318
2,480
 
53
 
       
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 02/23/2017 is 22.0 cubic feet per second.

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

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