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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
01627500 SOUTH RIVER AT HARRISTON, VA
LOCATION.--Latitude 38°13'07", Longitude 78°50'13", North American Datum of 1927,
                    Augusta County, VA, Hydrologic Unit 02070005.
DRAINAGE AREA.--212 square miles.
PERIOD OF RECORD.--February 1925 to September 1951, October 1968 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--Historically a mill operated 0.4 miles upstream of gage. Wastwater treatment upstream estimated input 12.6 cfs.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01627500 plot. SOUTH RIVER AT HARRISTON, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 03/22/2017 is 94.43 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


                01627500     SOUTH RIVER AT HARRISTON, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
47.7
67.6
82.0
137
213
353
598
806
3,560
 
73
February
44.0
76.4
103
152
243
389
589
830
3,550
 
73
March
50.3
112
141
199
293
462
739
1,030
3,640
 
74
April
79.4
121
143
196
274
460
777
1,120
2,970
 
74
May
57.3
102
119
150
218
333
538
755
2,720
 
74
June
42.1
71.4
81.9
104
142
208
323
541
5,090
 
74
July
38.6
58.9
66.4
82.4
105
136
193
290
2,450
 
74
August
36.1
51.1
59.9
72.3
89.4
119
232
349
3,400
 
74
September
36.3
51.6
58.6
68.1
83.1
132
315
605
4,050
 
74
October
37.7
52.4
58.9
69.0
92.7
184
490
862
3,790
 
72
November
44.6
57.5
67.3
79.3
120
244
474
720
6,460
 
73
December
41.3
62.0
70.8
105
182
317
546
734
2,350
 
73
 
       

The current 7-day running-average value for 03/22/2017 is 94.43 cubic feet per second.

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

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