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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
01669520 DRAGON SWAMP AT MASCOT, VA
LOCATION.--Latitude 37°38'01", Longitude 76°41'48", North American Datum of 1927,
                    King and Queen County, VA, Hydrologic Unit 02080102
DRAINAGE AREA.--109 square miles.
PERIOD OF RECORD.--August 1981 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 01669520 plot. DRAGON SWAMP AT MASCOT, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 137.07 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


                01669520     DRAGON SWAMP AT MASCOT, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
33.7
46.6
57.6
82.0
121
179
252
314
473
 
34
February
32.0
51.7
61.2
94.9
146
206
278
354
981
 
34
March
28.4
52.7
65.8
109
176
246
328
452
836
 
34
April
20.3
52.2
65.2
103
150
243
370
446
804
 
34
May
5.34
25.9
46.5
73.9
115
167
230
272
494
 
34
June
1.48
5.19
11.2
37.1
66.8
106
176
301
581
 
34
July
0.01
1.44
3.40
11.0
38.5
85.9
139
169
822
 
34
August
0.00
0.50
1.27
8.19
36.6
94.1
187
370
1,040
 
34
September
0.00
0.53
1.20
6.33
16.3
71.9
242
503
1,450
 
35
October
0.44
1.44
4.68
12.3
30.2
84.0
184
363
837
 
34
November
0.53
14.9
19.7
36.1
63.3
124
209
295
602
 
34
December
15.9
32.3
40.3
65.1
96.9
154
246
360
704
 
34
 
       

The current 14-day running-average value for 03/22/2017 is 137.07 cubic feet per second.

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

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