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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average 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 2015.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01673800 plot. PO RIVER NEAR SPOTSYLVANIA, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 64.21 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


                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
5.85
16.8
22.7
44.9
85.1
128
203
257
556
 
53
February
6.65
23.5
31.7
52.7
85.0
138
225
322
889
 
53
March
6.36
31.9
41.7
63.8
103
169
270
415
828
 
53
April
11.7
30.5
34.9
55.3
87.0
163
250
321
808
 
53
May
4.95
17.9
22.0
35.8
60.5
105
185
270
679
 
53
June
1.36
5.19
8.13
15.7
31.3
55.3
129
184
993
 
53
July
0.07
1.60
2.82
5.83
14.2
30.6
61.1
114
998
 
53
August
0.00
0.57
1.03
3.40
9.31
27.7
61.7
93.2
423
 
53
September
0.07
0.41
0.66
1.63
5.78
19.0
54.8
101
534
 
53
October
0.07
0.25
0.77
3.22
11.9
38.9
105
157
545
 
52
November
0.19
2.14
6.68
13.4
27.6
74.7
149
231
585
 
53
December
1.40
10.1
13.9
29.4
60.0
114
199
291
738
 
53
 
       

The current 14-day running-average value for 03/22/2017 is 64.21 cubic feet per second.

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

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