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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
01666500 ROBINSON RIVER NEAR LOCUST DALE, VA
LOCATION.--Latitude 38°19'30", Longitude 78°05'45", North American Datum of 1927,
                    Madison County, VA, Hydrologic Unit 02080103.
DRAINAGE AREA.--179 square miles.
PERIOD OF RECORD.--July 1943 to current year. Prior to October 1965, published as Robertson River near Locust Dale.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Low flow regulated by powerplant about 11 miles above station and at mill about 14 miles above station in prior years.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01666500 plot. ROBINSON RIVER NEAR LOCUST DALE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 08/28/2008 is 37.71 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 7-Day Average Streamflow
            Flow values in cubic feet per second


                01666500     ROBINSON RIVER NEAR LOCUST DALE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
31.9
63.7
85.2
139
203
325
493
664
1,750
 
64
February
38.1
80.8
106
154
228
318
491
783
2,060
 
64
March
44.3
118
137
190
264
406
597
791
2,130
 
64
April
78.6
108
123
166
236
379
600
807
1,920
 
64
May
48.6
88.3
103
133
200
294
440
540
1,590
 
64
June
23.3
42.1
58.0
90.6
140
217
355
584
4,580
 
64
July
10.0
23.3
29.9
50.8
95.1
154
253
347
4,970
 
64
August
2.46
13.7
19.6
38.7
77.8
139
268
394
3,670
 
64
September
2.67
13.5
22.0
32.5
65.9
135
324
612
3,700
 
65
October
5.49
19.6
25.7
46.5
83.6
185
364
573
2,500
 
64
November
22.0
40.1
49.1
69.9
125
227
436
658
4,320
 
64
December
30.6
54.5
66.9
109
178
288
475
646
1,680
 
64
 
       

The current 7-day running-average value for 08/28/2008 is 37.71 cubic feet per second.

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

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