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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 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 01669520 plot. DRAGON SWAMP AT MASCOT, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 08/27/2008 is 5.81 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


                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
34.8
53.8
66.8
88.8
142
182
234
299
357
 
26
February
41.5
50.8
72.4
106
163
209
263
300
661
 
26
March
32.6
57.1
74.8
126
182
240
369
484
598
 
26
April
29.5
53.2
64.5
128
184
271
392
462
565
 
26
May
8.40
32.2
53.3
84.8
136
197
261
294
465
 
26
June
2.06
10.6
21.8
46.9
83.9
124
220
292
460
 
26
July
0.14
2.64
4.40
19.8
53.4
81.6
115
157
520
 
26
August
0.02
0.82
4.55
12.9
44.3
111
203
315
783
 
26
September
0.35
0.89
1.78
8.18
26.5
130
242
340
745
 
26
October
0.64
1.24
3.52
10.6
36.3
118
270
310
767
 
26
November
0.68
9.93
18.4
34.7
63.6
116
217
269
322
 
26
December
10.5
28.3
44.3
69.4
93.1
149
248
278
340
 
26
 
       

The current 28-day running-average value for 08/27/2008 is 5.81 cubic feet per second.

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

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