USGS Groundwater for USA: Water Levels -- 1 sites

USGS Home
Contact USGS
Search USGS

USGS Water Resources

Data Category:
Geographic Area:

Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Groundwater levels for the Nation

Save file of selected sites to local disk for future upload

Nassau County, New York

Latitude 40°51'21.75", Longitude 73°27'52.34" NAD83

Land-surface elevation 41 feet above NAVD88

The depth of the well is 800 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 Lloyd Aquifer (211LLYD) 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
2013-05-14	19:08 UTC	m	62610		35.32	NGVD29	4	S	USGS	S	A
2013-05-14	19:08 UTC	m	62611		34.27	NAVD88	4	S	USGS	S	A
2013-05-14	19:08 UTC	m	72019	6.73			4	S	USGS	S	A
2013-07-30	22:48 UTC	m	62610		34.17	NGVD29	4	T	USGS	S	A
2013-07-30	22:48 UTC	m	62611		33.12	NAVD88	4	T	USGS	S	A
2013-07-30	22:48 UTC	m	72019	7.88			4	T	USGS	S	A
2016-05-12	22:49 UTC	m	62610		33.87	NGVD29	4	T	USGS	S	A
2016-05-12	22:49 UTC	m	62611		32.82	NAVD88	4	T	USGS	S	A
2016-05-12	22:49 UTC	m	72019	8.18			4	T	USGS	S	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	4	Groundwater level affected by tide
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: 2024-11-23 00:14:18 EST
0.34 0.23 nadww01