USGS - science for a changing world
Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily 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 2005.
REGULATION.--No known regulation.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
 
     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision 01669000 plot. PISCATAWAY CREEK NEAR TAPPAHANNOCK, VA

 
                     duration plot description percentile definition explanation
      Duration Table of Daily 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
6.20
9.96
13.0
20.0
31.0
45.0
62.0
81.0
345
 
55
February
6.00
14.0
17.0
25.0
38.0
52.0
70.0
89.0
631
 
50
March
9.80
16.6
20.0
30.0
41.0
61.0
87.7
118
406
 
55
April
7.10
14.0
18.0
28.0
41.0
61.0
85.0
105
428
 
54
May
1.30
7.90
11.0
18.0
28.0
43.0
66.0
86.0
365
 
55
June
0.26
2.30
4.70
9.70
17.0
30.0
49.1
68.0
714
 
54
July
0.01
1.40
2.30
5.20
11.0
21.0
39.0
63.0
442
 
55
August
0.00
1.10
2.20
4.40
9.10
19.0
39.0
59.0
1,080
 
55
September
0.00
1.10
1.80
3.50
7.60
18.0
38.0
58.0
739
 
54
October
0.02
2.20
3.53
7.00
12.0
23.0
43.0
55.0
352
 
55
November
3.30
7.40
8.40
13.0
20.0
34.0
50.0
65.0
273
 
54
December
4.70
8.90
12.0
16.0
24.0
38.0
56.0
72.0
270
 
55
 
       
                       Instantaneous minimum flow for period of record = 0.00 cubic feet per second
                                                     Flow values of 0.00 are plotted as 0.01


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

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://va.water.usgs.gov/duration_plots/daily/dp01669000.htm
Page Contact Information: Virginia WSC Webmaster
Page Last Modified: 5/7/2007