USGS Groundwater for USA: Water Levels -- 1 sites

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Groundwater levels for the Nation

Phillips County, Montana

Latitude 48°46'00", Longitude 107°27'10" NAD27

Land-surface elevation 2,800 feet above NGVD29

The depth of the well is 246 feet below land surface.

The depth of the hole is 246 feet below land surface.

This well is completed in the Judith River Formation of Montana Group (211JDRV) 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
1978-08-21	D	62610		2621.10	NGVD29	1	T	USGS	S	A
1978-08-21	D	62611		2623.48	NAVD88	1	T	USGS	S	A
1978-08-21	D	72019	178.90			1	T	USGS	S	A
1983-08-10	D	62610		2620.72	NGVD29	1	S	USGS	S	A
1983-08-10	D	62611		2623.10	NAVD88	1	S	USGS	S	A
1983-08-10	D	72019	179.28			1	S	USGS	S	A
1984-10-31	D	62610		2621.71	NGVD29	1	S	USGS	S	A
1984-10-31	D	62611		2624.09	NAVD88	1	S	USGS	S	A
1984-10-31	D	72019	178.29			1	S	USGS	S	A
1985-10-16	D	62610		2621.41	NGVD29	1	S	USGS	S	A
1985-10-16	D	62611		2623.79	NAVD88	1	S	USGS	S	A
1985-10-16	D	72019	178.59			1	S	USGS	S	A
1986-11-20	D	62610		2621.63	NGVD29	1	S	USGS	S	A
1986-11-20	D	62611		2624.01	NAVD88	1	S	USGS	S	A
1986-11-20	D	72019	178.37			1	S	USGS	S	A
1990-10-12	D	62610		2720.95	NGVD29	1	S	USGS	S	A
1990-10-12	D	62611		2723.33	NAVD88	1	S	USGS	S	A
1990-10-12	D	72019	79.05			1	S	USGS	S	A
1991-09-28	D	62610		2721.50	NGVD29	1	S	USGS	S	A
1991-09-28	D	62611		2723.88	NAVD88	1	S	USGS	S	A
1991-09-28	D	72019	78.50			1	S	USGS	S	A
1992-08-06	D	62610		2727.22	NGVD29	1	S	USGS	S	A
1992-08-06	D	62611		2729.60	NAVD88	1	S	USGS	S	A
1992-08-06	D	72019	72.78			1	S	USGS	S	A
1993-09-27	D	62610		2720.60	NGVD29	1	S	USGS	S	A
1993-09-27	D	62611		2722.98	NAVD88	1	S	USGS	S	A
1993-09-27	D	72019	79.40			1	S	USGS	S	A
1994-10-05	D	62610		2708.29	NGVD29	1	S	USGS	S	A
1994-10-05	D	62611		2710.67	NAVD88	1	S	USGS	S	A
1994-10-05	D	72019	91.71			1	S	USGS	S	A
1997-08-27	D	62610		2708.50	NGVD29	1	S	USGS	S	A
1997-08-27	D	62611		2710.88	NAVD88	1	S	USGS	S	A
1997-08-27	D	72019	91.50			1	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
Method of measurement	S	Steel-tape measurement.
Method of measurement	T	Electric-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 14:57:11 EST
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