USGS Groundwater for Illinois: Water Levels -- 1 sites

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Groundwater levels for Illinois

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Henry County, Illinois

Latitude 41°28'32", Longitude 90°08'29" NAD27

Land-surface elevation 621 feet above NGVD29

The depth of the well is 57 feet below land surface.

The depth of the hole is 57 feet below land surface.

This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.

This well is completed in the Quaternary System (110QRNR) local aquifer.

Date	Time	? Water-level date-time accuracy	? Parameter code	Water level, feet below land surface	Water level, feet above specific vertical datum	Referenced vertical datum	? Status	? Method of measurement	? Measuring agency	? Source of measurement	? Water-level approval status
1984-06-20	15:25 UTC	m	62610		594.89	NGVD29	1	O	USGS	S	A
1984-06-20	15:25 UTC	m	62611		594.64	NAVD88	1	O	USGS	S	A
1984-06-20	15:25 UTC	m	72019	26.11			1	O	USGS	S	A
1984-09-24	20:50 UTC	m	62610		588.00	NGVD29	1	O	USGS	S	A
1984-09-24	20:50 UTC	m	62611		587.75	NAVD88	1	O	USGS	S	A
1984-09-24	20:50 UTC	m	72019	33.00			1	O	USGS	S	A
1984-12-10	20:45 UTC	m	62610		588.00	NGVD29	1	O	USGS	S	A
1984-12-10	20:45 UTC	m	62611		587.75	NAVD88	1	O	USGS	S	A
1984-12-10	20:45 UTC	m	72019	33.00			1	O	USGS	S	A
1985-04-09	21:10 UTC	m	62610		590.50	NGVD29	1	O	IL006	A	A
1985-04-09	21:10 UTC	m	62611		590.25	NAVD88	1	O	IL006	A	A
1985-04-09	21:10 UTC	m	72019	30.50			1	O	IL006	A	A

**Explanation**
Section	Code	Description
Water-level date-time accuracy	m	Date is accurate to the Minute
Parameter code	62610	Groundwater level above NGVD 1929, feet
Parameter code	62611	Groundwater level above NAVD 1988, feet
Parameter code	72019	Depth to water level, feet below land surface
Referenced vertical datum	NAVD88	North American Vertical Datum of 1988
Referenced vertical datum	NGVD29	National Geodetic Vertical Datum of 1929
Status	1	Static
Method of measurement	O	Observed.
Measuring agency	IL006	State of Illinois Environmental Protection Agency
Measuring agency	USGS	U.S. Geological Survey
Source of measurement	A	Reported by another government agency (do not use "A" if reported by owner, use "O").
Source of measurement	S	Measured by personnel of reporting agency.
Water-level approval status	A	Approved for publication -- Processing and review completed.

U.S. Department of the Interior | U.S. Geological Survey
Title: Groundwater for Illinois: Water Levels
URL: https://nwis.waterdata.usgs.gov/il/nwis/gwlevels?

Page Contact Information: Illinois Water Data Maintainer
Page Last Modified: 2024-06-22 21:29:59 EDT
0.24 0.21 nadww01