USGS Groundwater for USA: Water Levels -- 1 sites

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Groundwater levels for the Nation

Snohomish County, Washington

Latitude 48°06'37.1", Longitude 122°18'56.8" NAD27

Land-surface elevation 400 feet above NGVD29

The depth of the well is 399 feet below land surface.

The depth of the hole is 399 feet below land surface.

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
1978-06-01		D	62610		32.00	NGVD29	1	L			A
1978-06-01		D	62611		35.76	NAVD88	1	L			A
1978-06-01		D	72019	368.00			1	L			A
1981-03-04		D	62610		37.25	NGVD29	P	S	USGS	S	A
1981-03-04		D	62611		41.01	NAVD88	P	S	USGS	S	A
1981-03-04		D	72019	362.75			P	S	USGS	S	A
1981-03-16		D	62610		38.19	NGVD29	P	S	USGS	S	A
1981-03-16		D	62611		41.95	NAVD88	P	S	USGS	S	A
1981-03-16		D	72019	361.81			P	S	USGS	S	A
1981-04-15		D	62610		29.80	NGVD29	P	S	USGS	S	A
1981-04-15		D	62611		33.56	NAVD88	P	S	USGS	S	A
1981-04-15		D	72019	370.20			P	S	USGS	S	A
1982-01-14		D	62610		28.74	NGVD29	1	S	USGS	S	A
1982-01-14		D	62611		32.50	NAVD88	1	S	USGS	S	A
1982-01-14		D	72019	371.26			1	S	USGS	S	A
1982-02-16		D	62610		38.70	NGVD29	1	S	USGS	S	A
1982-02-16		D	62611		42.46	NAVD88	1	S	USGS	S	A
1982-02-16		D	72019	361.30			1	S	USGS	S	A
1982-04-12		D	62610		37.12	NGVD29	1	S	USGS	S	A
1982-04-12		D	62611		40.88	NAVD88	1	S	USGS	S	A
1982-04-12		D	72019	362.88			1	S	USGS	S	A
1982-05-18		D	62610		36.62	NGVD29	P	S	USGS	S	A
1982-05-18		D	62611		40.38	NAVD88	P	S	USGS	S	A
1982-05-18		D	72019	363.38			P	S	USGS	S	A
2001-05-15	19:20 UTC	m	62610		37.51	NGVD29	P	V	USGS	S	A
2001-05-15	19:20 UTC	m	62611		41.27	NAVD88	P	V	USGS	S	A
2001-05-15	19:20 UTC	m	72019	362.49			P	V	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 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	1	Static
Status	P	Pumping
Method of measurement	L	Interpreted from geophysical logs.
Method of measurement	S	Steel-tape measurement.
Method of measurement	V	Calibrated electric-tape measurement.
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 USA: Water Levels
URL: https://nwis.waterdata.usgs.gov/nwis/gwlevels?

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2025-07-05 04:51:28 EDT
0.39 0.3 nadww02