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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
01669000 PISCATAWAY CREEK NEAR TAPPAHANNOCK, VA
LOCATION.--Latitude 37°52'37", Longitude 76°54'03", North American Datum of 1927,
                    Essex County, VA, Hydrologic Unit 02080104.
DRAINAGE AREA.--27.9 square miles.
PERIOD OF RECORD.--July 1951 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 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01669000 plot. PISCATAWAY CREEK NEAR TAPPAHANNOCK, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 11/17/2008 is 10.7 cubic feet per second.

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


                01669000     PISCATAWAY CREEK NEAR TAPPAHANNOCK, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
7.76
12.2
15.5
21.5
33.8
42.9
57.7
67.8
93.1
 
56
February
7.95
14.0
18.5
27.3
36.9
51.4
64.7
72.4
136
 
56
March
13.1
19.5
21.6
31.9
44.1
55.3
76.2
94.8
126
 
56
April
13.1
17.2
19.4
33.8
46.3
61.8
90.7
108
140
 
56
May
4.75
14.0
17.6
25.2
35.3
51.3
68.6
84.9
109
 
56
June
0.76
5.78
10.4
16.9
24.8
38.0
63.1
72.4
113
 
56
July
0.41
3.08
4.63
9.54
14.5
22.9
37.3
51.5
127
 
56
August
0.04
2.04
3.90
6.36
12.7
24.5
36.0
53.8
113
 
56
September
0.01
2.00
3.07
4.75
10.7
22.1
37.9
60.2
106
 
56
October
0.24
2.61
3.39
6.68
12.1
27.3
44.3
60.4
90.5
 
55
November
1.56
6.15
8.08
12.6
19.2
33.9
50.9
57.6
80.8
 
56
December
6.56
9.97
12.7
17.7
24.6
35.7
51.3
59.6
85.6
 
56
 
       

The current 28-day running-average value for 11/17/2008 is 10.7 cubic feet per second.

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

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