Latitude 42°11'45", Longitude 88°19'48" NAD83 Mchenry County, Illinois, Hydrologic Unit 07120006
Well depth: 47.3 feet Hole depth: 189 feet Land surface altitude: 880.03feet above NAVD88. Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer. Well completed in "Quaternary System" (110QRNR) local aquifer
This site is operated in cooperation with McHenry County, Illinois.
Site Statistics
Most recent data value: -0.48 on 5/17/2022
Period of Record Monthly Statistics for 421145088194801 Depth to water level, feet below land surface All Approved Continuous & Periodic Data Used In Analysis
Note: Highlighted values in the table indicate closest statistic to the most recent data value.
Month
Lowest Median
10th %ile
25th %ile
50th %ile
75th %ile
90th %ile
Highest Median
Number of Years
Jan
3.87
3.50
1.89
0.66
-0.64
-1.18
-1.25
12
Feb
3.06
2.82
1.68
0.27
-0.51
-1.28
-1.54
12
Mar
0.11
0.03
-0.28
-0.86
-1.09
-1.58
-1.72
12
Apr
0.76
0.63
-0.05
-0.75
-1.35
-1.57
-1.61
11
May
1.72
1.63
-0.21
-0.87
-1.43
-1.98
-1.98
11
Jun
2.55
2.53
0.90
-0.26
-0.71
-0.94
-0.98
11
Jul
4.18
3.79
2.02
0.98
-0.36
-1.43
-1.61
11
Aug
5.05
4.58
2.67
1.95
1.59
0.67
0.65
11
Sep
6.08
5.29
2.93
1.90
1.32
-0.55
-0.87
12
Oct
6.62
5.67
3.03
2.23
0.94
-1.07
-1.26
12
Nov
6.08
5.25
2.42
1.54
0.06
-0.93
-0.97
12
Dec
5.96
5.14
1.96
0.80
-0.21
-1.61
-1.95
12
.As of 5/14/2022 09:10-2
Statistics Options
View month/year statistics
Daily Groundwater Data
Most recent Provisional daily data value: -0.48 on 05/17/22
Summary for Period of Continuous Record
Depth to water level, feet below land surface
Approved Daily Maximum Values Data Used in Analysis
Begin Date
End Date
Days
% Complete
10/01/10
03/27/22
4,165
99
Lowest Level
5th %ile
10th %ile
25th %ile
50th %ile
75th %ile
90th %ile
95th %ile
Highest Level
6.90
3.98
3.13
1.96
0.52
-0.72
-1.45
-1.85
-3.51
Daily Data Options
View latest data on NWISWeb
View data in calendar format
Download data in text format
View daily medians
Periodic Groundwater Data
Summary 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
09/22/10
03/28/22
40
Highest WL
Date of Highest WL
Lowest WL
Date of Lowest WL
-2.76
04/26/11
6.79
10/09/12
Groundwater Levels Options
View latest data on NWISWeb
Download groundwater levels in text format
Note: The most recent measurement on 03/28/2022 has the following status: ''
Period of Record - All Data Types
Summary for Period of Record - All Data Types
Depth to water level, feet below land surface
Begin Date
End Date
Number of Values
09/22/10
05/17/22
4,979
Highest WL
Date of Highest WL
Lowest WL
Date of Lowest WL
-3.51
07/22/17
6.9
10/12/12
Period of Record Options
View latest data on NWISWeb for all data types
View month/year statistics
Download groundwater levels in text format of all data types
*References to non-Department of the Interior (DOI) products do not constitute an endorsement by the DOI.
