Available data

Select data types to graph from categories based on the way the data were collected.

2 data types available - data from 2007-10-01 to 2026-07-14

2 data types available - data from 1978-09-29 to 2026-07-12

3 data types available - data from 1975-01-31 to 2026-07-15

9 Observed properties (data types) available - with data from 1988-02-17 to 1988-12-01

27 Sampling activities

2 data types available - data from 1978-09-29 to 2026-07-12

Zoom out to see link to My Favorites

Operated in cooperation with:

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	132624144452771	n/a
Location name	A-20, Ordot, Guam	n/a
Site type	Well	GW
Decimal latitude (WGS84)	13.44175	n/a
Decimal longitude (WGS84)	144.7596388888889	n/a
Latitude-longitude method	Global positioning system (GPS), Standard Positioning Service (SPS) or Precise Positioning Service (PPS)	G
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Hawaii	15
State	Guam	66
County	Guam	010
Country	United States of America	n/a
Altitude of gage/land surface	140.42 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	Guam Vertical Datum of 2004	GUVD04
Subbasin hydrologic unit	Guam	22010000
Drainage basin		n/a
Date of first construction		n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	GST	n/a
Site honors Daylight Saving Time	N	n/a
National aquifer	Other aquifers	N9999OTHER
Local aquifer		n/a
Local aquifer type	Unconfined single aquifer	U
Well depth	120 feet	n/a
Hole depth	120 feet	n/a
Source of depth data	D	n/a