Latitude 41°28'44", Longitude 71°42'28" NAD27 Washington County, Rhode Island, Hydrologic Unit 01090005
Land surface altitude: 100.20 feet above sea level NGVD29. Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer. Well completed in "STRATIFIED DEPOSITS, UNDIFFERENTIATED" (112SRFD) local aquifer
Period of Record Monthly Statistics for 412844071422802 Depth to water level, feet below land surface All Approved Continuous & Periodic Data Used In Analysis
Note: Bold values in the table indicate closest statistic to the most recent data value.
Month
Lowest Level
10th %ile
25th %ile
50th %ile
75th %ile
90th %ile
Highest Level
Number of Years
Jan
35.76
35.22
34.17
33.86
33.16
32.93
32.08
32
Feb
35.83
35.00
33.93
33.41
33.09
32.81
32.00
32
Mar
34.96
34.12
33.59
33.31
33.07
32.61
32.49
32
Apr
34.34
33.97
33.30
33.05
32.60
32.37
31.87
32
May
34.18
34.06
33.54
33.12
32.97
32.42
32.19
32
Jun
34.35
34.04
33.84
33.45
32.99
32.51
30.69
32
Jul
34.72
34.53
34.30
34.01
33.55
32.63
30.46
31
Aug
35.42
35.01
34.69
34.34
33.90
33.38
32.39
32
Sep
35.93
35.47
35.13
34.54
34.19
33.79
33.13
33
Oct
36.09
35.66
35.13
34.69
34.16
34.00
33.19
33
Nov
35.85
35.74
35.26
34.62
33.95
33.57
32.80
32
Dec
35.86
35.38
34.78
34.24
33.46
32.92
32.37
32
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Daily Groundwater Data
Most recent Provisional daily data value: 34.03 on 11/21/09
Summary Statistics for Period of Continuous Record
Depth to water level, feet below land surface
Approved Daily Mean Values Data Used in Analysis
Begin Date
End Date
Days
% Complete
10/05/87
11/23/08
6,951
90
Highest Level
95-Pct
75-Pct
50-Pct
25-Pct
5-Pct
Lowest Level
30.29
32.39
33.19
33.80
34.46
35.50
36.14
Daily Data Options
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Periodic Groundwater Data
Summary Statistics for Period of Record Periodic Water Levels
Depth to water level, feet below land surface
Approved Periodic Water Level Values
Begin Date
End Date
Number of Values
09/21/77
10/26/09
950
Highest WL
Date of Highest WL
Lowest WL
Date of Lowest WL
30.56
06/23/06
36.06
10/21/02
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Period of Record - All Data Types
Summary Statistics for Period of Record - All Data Types
Depth to water level, feet below land surface
Begin Date
End Date
Number of Values
09/21/77
11/21/09
8,496
Highest WL
Date of Highest WL
Lowest WL
Date of Lowest WL
30.29
07/04/06
36.14
10/16/02
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