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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily 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 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 01669520 plot. DRAGON SWAMP AT MASCOT, VA

 
                     duration plot description percentile definition explanation
      Duration Table of Daily 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
23.0
39.0
49.0
84.8
123
188
265
361
910
 
24
February
21.0
42.8
58.0
97.0
162
230
314
400
2,690
 
22
March
21.0
51.0
67.3
109
172
255
392
524
2,530
 
24
April
7.70
43.0
61.0
96.8
146
239
349
456
2,380
 
24
May
3.30
15.0
25.0
54.8
107
165
224
298
1,570
 
24
June
0.41
2.10
5.99
21.8
58.0
104
172
250
1,070
 
24
July
0.00
0.39
1.63
6.78
30.0
87.5
173
234
2,800
 
24
August
0.00
0.16
0.88
5.72
25.0
99.8
220
344
1,500
 
25
September
0.04
0.47
0.96
3.80
13.0
59.8
184
354
6,050
 
25
October
0.35
0.78
4.29
13.8
32.0
85.0
152
220
734
 
24
November
1.10
14.0
21.0
40.0
67.5
124
210
278
749
 
24
December
15.0
32.0
41.0
64.0
101
160
246
316
678
 
24
 
       
                       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 ----

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