USGS Groundwater for USA: Water Levels -- 1 sites

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Groundwater levels for the Nation

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Nassau County, New York

Latitude 40°46'09", Longitude 73°39'29" NAD27

Land-surface elevation 123.0 feet above NGVD29

The depth of the well is 181 feet below land surface.

This well is completed in the Northern Atlantic Coastal Plain aquifer system (S100NATLCP) national aquifer.

This well is completed in the Magothy Aquifer (211MAGT) 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
1957-05-14	D	62610		68.73	NGVD29	1	O	USGS	S	A
1957-05-14	D	62611		67.62	NAVD88	1	O	USGS	S	A
1957-05-14	D	72019	54.27			1	O	USGS	S	A
1959-12-17	D	62610		31.89	NGVD29	1	O	USGS	S	A
1959-12-17	D	62611		30.78	NAVD88	1	O	USGS	S	A
1959-12-17	D	72019	91.11			1	O	USGS	S	A
1960-12-01	D	62610		33.29	NGVD29	1	O	USGS	S	A
1960-12-01	D	62611		32.18	NAVD88	1	O	USGS	S	A
1960-12-01	D	72019	89.71			1	O	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	O	Observed.
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: 2024-11-24 10:48:02 EST
0.36 0.28 nadww01