Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  11NPSWRD_WQX >  11NPSWRD_WQX-AMME_GS6_MAUI4

Maui IV Well (11NPSWRD_WQX-AMME_GS6_MAUI4) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This well site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "Maui IV Well" and has the identifier 11NPSWRD_WQX-AMME_GS6_MAUI4. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)22020000.

This site is located in Saipan Municipality County, Northern Mariana Islands at 15.2135250000 degrees latitude and 145.7413305560 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 224.62 ft No vertical location accuracy metadata is available.

The well hole depth is 226 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "11NPSWRD_WQX-AMME_GS6_MAUI4" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Inorganics, Major, Non-metals 1998 - 1998
Physical 1998 - 1998
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier 11NPSWRD_WQX
OrganizationFormalName National Park Service Water Resources Division
MonitoringLocationIdentifier 11NPSWRD_WQX-AMME_GS6_MAUI4
MonitoringLocationName Maui IV Well
MonitoringLocationTypeName Well
MonitoringLocationDescriptionText This station is at Maui IV well. This site is in the Maui IV well field. The site also is named Tanapag Infiltration Tunnel. The construction date given was April 1946. Chosen date was April 15, 1946. The vertical shaft is 8 by 8 feet and timbered. There are two main tunnels, each with one lateral, draining into a 12 by 12 by 8-foot, concrete-lined pump sump. Total length is 1,100 feet. The well was reported dry on December 9, 1953. This station has an additional ID from USGS-NWIS of 151248145443470 with the station name of Maui IV, Saipan, CNMI.
HUCEightDigitCode 22020000
LatitudeMeasure 15.2135250000
LongitudeMeasure 145.7413305560
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 224.62
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Unknown
VerticalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 69
CountyCode 110
WellHoleDepthMeasure/MeasureValue 226
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName STORET