USGS Groundwater for USA: Water Levels -- 1 sites

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Groundwater levels for the Nation

Toole County, Montana

Latitude 48°57'43", Longitude 111°18'49" NAD27

Land-surface elevation 3,610 feet above NGVD29

The depth of the well is 523 feet below land surface.

The depth of the hole is 523 feet below land surface.

This well is completed in the Eagle Formation (211EGLE) 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
1979-09-19	D	62610		3573.34	NGVD29	1	S	USGS	S	A
1979-09-19	D	62611		3576.53	NAVD88	1	S	USGS	S	A
1979-09-19	D	72019	36.66			1	S	USGS	S	A
1989-05-09	D	62610		3578.73	NGVD29	P	S	USGS	S	A
1989-05-09	D	62611		3581.92	NAVD88	P	S	USGS	S	A
1989-05-09	D	72019	31.27			P	S	USGS	S	A
1989-09-13	D	62610		3580.30	NGVD29	P	S	USGS	S	A
1989-09-13	D	62611		3583.49	NAVD88	P	S	USGS	S	A
1989-09-13	D	72019	29.70			P	S	USGS	S	A
1990-01-10	D	62610		3579.15	NGVD29	P	S	USGS	S	A
1990-01-10	D	62611		3582.34	NAVD88	P	S	USGS	S	A
1990-01-10	D	72019	30.85			P	S	USGS	S	A
1990-05-04	D	62610		3578.78	NGVD29	P	S	USGS	S	A
1990-05-04	D	62611		3581.97	NAVD88	P	S	USGS	S	A
1990-05-04	D	72019	31.22			P	S	USGS	S	A
1990-06-05	D	62610		3579.37	NGVD29	P	S	USGS	S	A
1990-06-05	D	62611		3582.56	NAVD88	P	S	USGS	S	A
1990-06-05	D	72019	30.63			P	S	USGS	S	A
1990-06-26	D	62610		3579.38	NGVD29	P	S	USGS	S	A
1990-06-26	D	62611		3582.57	NAVD88	P	S	USGS	S	A
1990-06-26	D	72019	30.62			P	S	USGS	S	A
1990-07-22	D	62610		3579.26	NGVD29	P	S	USGS	S	A
1990-07-22	D	62611		3582.45	NAVD88	P	S	USGS	S	A
1990-07-22	D	72019	30.74			P	S	USGS	S	A
1990-08-22	D	62610		3579.42	NGVD29	P	S	USGS	S	A
1990-08-22	D	62611		3582.61	NAVD88	P	S	USGS	S	A
1990-08-22	D	72019	30.58			P	S	USGS	S	A
1990-09-26	D	62610		3579.37	NGVD29	P	S	USGS	S	A
1990-09-26	D	62611		3582.56	NAVD88	P	S	USGS	S	A
1990-09-26	D	72019	30.63			P	S	USGS	S	A

**Explanation**
Section	Code	Description
Water-level date-time accuracy	D	Date is accurate to the Day
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
Status	P	Pumping
Method of measurement	S	Steel-tape measurement.
Measuring agency	USGS	U.S. Geological Survey
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 USA: Water Levels
URL: https://nwis.waterdata.usgs.gov/nwis/gwlevels?

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2025-01-10 15:08:50 EST
0.37 0.27 nadww01