USGS Groundwater for Illinois: Water Levels -- 1 sites

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Groundwater levels for Illinois

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Winnebago County, Illinois

Latitude 42°25'52", Longitude 89°01'19" NAD27

Land-surface elevation 745 feet above NGVD29

The depth of the well is 780 feet below land surface.

The depth of the hole is 781 feet below land surface.

This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.

This well is completed in the Elmhurst-Mt. Simon (372ELMS) local aquifer.

Date	? 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
1984-07	M	62610		715.00	NGVD29	1	L			A
1984-07	M	62611		714.80	NAVD88	1	L			A
1984-07	M	72019	30.00			1	L			A
2003-02-06	D	62610		702.80	NGVD29	1	O	USGS	S	A
2003-02-06	D	62611		702.60	NAVD88	1	O	USGS	S	A
2003-02-06	D	72019	42.20			1	O	USGS	S	A
2003-05-08	D	62610		701.70	NGVD29	1	O	USGS	S	A
2003-05-08	D	62611		701.50	NAVD88	1	O	USGS	S	A
2003-05-08	D	72019	43.30			1	O	USGS	S	A

**Explanation**
Section	Code	Description
Water-level date-time accuracy	D	Date is accurate to the Day
Water-level date-time accuracy	M	Date is accurate to the Month
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	L	Interpreted from geophysical logs.
Method of measurement	O	Observed.
Measuring agency		Not determined
Measuring agency	USGS	U.S. Geological Survey
Source of measurement		Not determined
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: 2024-11-12 17:23:16 EST
0.38 0.27 nadww02