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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Streamflow
 
01673000 PAMUNKEY RIVER NEAR HANOVER, VA
LOCATION.--Latitude 37°46'03", Longitude 77°19'57", North American Datum of 1927,
                    Hanover County, VA, Hydrologic Unit 02080106.
DRAINAGE AREA.--1,078 square miles.
PERIOD OF RECORD.--October 1941 to current year. Monthly discharge only for some periods, published in WSP 1302.
DURATION STATISTIC COMPUTATION PERIOD.--October 1941 to January 1972.
REGULATION.--Slight regulation from small mill dams upstream and by Lake Anna Power Station on North River since January 1972. Some diversion during summer months for irrigation.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with Daily Streamflow Conditions
Provisional Data Subject to Revision 01673000 plot. PAMUNKEY RIVER NEAR HANOVER, VA
Provisional Data Subject to Revision

                    

The current daily value for 03/22/2017 is 801.0 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


                01673000     PAMUNKEY RIVER NEAR HANOVER, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
150
239
313
570
850
1,370
2,660
4,210
8,430
 
30
February
237
406
465
685
1,020
1,670
2,930
4,280
10,400
 
30
March
393
531
619
855
1,210
1,970
3,660
4,700
12,000
 
30
April
303
429
487
685
971
1,430
2,620
3,640
10,400
 
30
May
177
278
321
429
619
1,000
1,890
2,890
6,300
 
30
June
111
156
172
237
375
580
1,060
1,540
10,700
 
30
July
44.0
81.0
99.0
142
252
422
880
1,680
9,530
 
30
August
24.0
54.0
68.2
117
221
465
1,330
2,960
39,300
 
30
September
13.0
30.0
46.0
92.0
199
356
607
1,320
6,220
 
30
October
18.0
38.1
58.2
125
253
422
842
1,860
15,600
 
31
November
75.0
123
156
243
404
676
1,300
2,290
11,500
 
31
December
120
177
221
370
580
1,030
2,100
3,310
15,800
 
31
 
       
Instantaneous minimum flow for period of record = 12.0 cubic feet per second.

The current daily value for 03/22/2017 is 801.0 cubic feet per second.

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

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