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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily 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 Daily Streamflow Conditions
Provisional Data Subject to Revision 01638480 plot. CATOCTIN CREEK AT TAYLORSTOWN, VA
Provisional Data Subject to Revision

                    

The current daily value for 03/22/2017 is 73.0 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of Daily 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
2.40
12.0
16.0
38.0
79.0
128
242
367
4,660
 
44
February
8.90
20.2
32.0
55.0
82.0
136
258
416
3,400
 
44
March
8.40
33.2
44.0
66.0
113
210
380
583
4,160
 
44
April
17.0
33.0
42.0
63.0
99.0
178
308
428
2,810
 
44
May
9.50
23.0
28.0
40.0
65.0
131
260
393
6,770
 
44
June
2.20
9.50
14.0
25.0
45.5
80.0
166
297
9,530
 
44
July
0.19
3.20
5.75
12.0
23.0
39.0
70.0
110
3,190
 
44
August
0.09
1.40
2.50
5.60
12.0
22.0
49.0
79.2
3,500
 
45
September
0.18
0.89
1.70
4.70
9.65
22.0
79.9
153
5,400
 
45
October
0.12
1.60
3.20
7.40
16.0
45.0
121
205
7,040
 
44
November
1.40
4.60
8.20
14.0
31.0
73.0
140
214
1,620
 
44
December
2.50
8.40
12.0
29.0
64.0
127
247
378
4,580
 
44
 
       
Instantaneous minimum flow for period of record = 0.08 cubic feet per second.

The current daily value for 03/22/2017 is 73.0 cubic feet per second.

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

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