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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily Groundwater Levels
 
371644077244601 51G 1
LOCATION.--Latitude 37°16'44", Longitude 77°24'46", North American Datum of 1927
                    Colonial Heights City, Va., Hydrologic Unit 02080207.
WELL CHARACTERISTICS.--Well is located in Petersburg Granite of Mississippian age. Depth 100 ft.
PERIOD OF RECORD.--Continual data, July 2006 to current year. Periodic data, October 1939 to November 2000, June 2001 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All continual data through September 2015, all approved periodic data.
EXTERNAL INFLUENCE.--No known external influences.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with Daily Groundwater Level Conditions
Provisional Data Subject to Revision 371644077244601 plot. 51G 1
Provisional Data Subject to Revision

                    

The current daily value for 03/22/2017 is 15.03 feet below land surface.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of Daily Groundwater Levels
            Maximum depth below land surface, in feet


                371644077244601     51G 1

   Lowest Level
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Highest Level
         
Years of record
January
19.01
17.45
17.16
16.20
14.95
13.72
12.60
12.04
10.73
 
104
February
18.83
17.30
16.81
15.93
14.69
13.63
12.69
12.43
11.17
 
106
March
18.39
17.21
16.04
15.45
14.22
13.26
12.15
11.67
10.73
 
104
April
17.67
16.90
16.24
15.45
14.28
13.37
12.45
12.13
11.58
 
106
May
17.72
17.17
16.37
15.33
14.55
13.65
12.58
12.24
10.73
 
107
June
17.34
16.52
16.06
15.70
15.01
14.33
13.39
13.02
11.13
 
107
July
19.01
17.18
16.56
16.09
15.44
14.64
13.66
13.20
10.73
 
105
August
18.06
17.33
16.90
16.22
15.55
14.29
13.44
13.03
11.60
 
105
September
18.83
17.60
17.27
16.63
15.96
14.45
12.93
11.97
11.10
 
106
October
18.42
17.72
17.49
16.87
15.78
14.49
13.22
11.88
11.17
 
105
November
18.70
17.97
17.61
16.88
15.92
14.29
13.50
13.14
12.23
 
106
December
19.26
17.89
17.43
16.56
15.46
14.08
13.06
12.49
11.99
 
106
 
       
Instantaneous lowest water level for period of record = 19.26 feet below land surface.

The current daily value for 03/22/2017 is 15.03 feet below land surface.

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

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