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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
01638480 CATOCTIN CREEK AT TAYLORSTOWN, VA
LOCATION.--Latitude 39°15'16", Longitude 77°34'36", North American Datum of 1927,
                    Loudoun County, VA, Hydrologic Unit 02070008.
DRAINAGE AREA.--89.5 mi2.
PERIOD OF RECORD.--August 1971 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 01638480 plot. CATOCTIN CREEK AT TAYLORSTOWN, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 58.36 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


                01638480     CATOCTIN CREEK AT TAYLORSTOWN, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
2.86
12.6
15.9
45.1
91.2
157
262
348
671
 
44
February
9.99
23.3
34.4
61.9
96.0
152
309
413
683
 
44
March
9.51
37.6
49.8
73.2
138
255
388
516
750
 
44
April
26.8
39.5
49.4
77.5
131
224
360
465
756
 
44
May
19.9
30.7
35.6
46.8
79.6
179
328
485
842
 
44
June
3.44
14.2
19.2
35.9
61.1
110
211
315
1,410
 
44
July
0.34
4.78
9.68
17.7
32.7
51.8
105
174
1,490
 
44
August
0.11
2.25
3.66
8.39
15.6
28.7
54.6
75.8
368
 
44
September
0.35
1.46
2.29
6.41
11.7
30.1
93.0
200
609
 
45
October
0.13
2.18
3.95
8.38
16.9
50.5
153
382
718
 
44
November
1.84
6.91
9.51
16.4
35.8
81.5
151
182
635
 
44
December
2.96
9.74
14.3
33.6
78.3
155
272
343
682
 
44
 
       

The current 14-day running-average value for 03/22/2017 is 58.36 cubic feet per second.

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

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