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


Page Loading - Please Wait...

Click to hideNews Bulletins
! This page is undergoing modernization with expected decommissioning as key features are added to the modernized pages.
Learn more about our modernization plans to find out which options will suit you best. Next Generation Monitoring Location Page is available now.
A beta version of the My Favorites page is available in WDFN. Try it out and tell us what you think at wdfn@usgs.gov

USGS 151519145473301 AM-MW1b As Matuis Monitor Well 1b, Saipan, CNMI

PROVISIONAL DATA SUBJECT TO REVISION

This station managed by the Pacific Islands WSC - Honolulu Oahu HI.

Available Parameters Available Period
  
2023-11-28  2023-11-28
2022-06-29  2024-10-18
2022-06-29  2024-10-18
2024-10-18  2025-09-26
2024-10-18  2025-09-26
2024-10-18  2025-09-26
2022-06-29  2024-10-18
2022-06-29  2024-10-18
2022-06-29  2022-10-21
2024-10-18  2025-09-26
2024-10-18  2025-09-26
2024-10-18  2025-09-26
2022-06-28  2025-09-26








 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius, 34.5 ft below NMVD03

Most recent instantaneous value: 26.5 09-26-2025   09:00 GST
Graph of  Temperature, water, degrees Celsius

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, 34.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages



Temperature, water, degrees Celsius, 36 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --


Temperature, water, degrees Celsius, 39.5 ft below NMVD03

Most recent instantaneous value: 26.6 09-26-2025   09:00 GST
Graph of  Temperature, water, degrees Celsius

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, 39.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages



Temperature, water, degrees Celsius, 41.5 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --

Temperature, water, degrees Celsius, 5.5 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --


Temperature, water, degrees Celsius, 8.5 ft below NMVD03

Most recent instantaneous value: 26.6 09-26-2025   09:00 GST
Graph of  Temperature, water, degrees Celsius

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius, 8.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages




Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 34.5 ft below NMVD03

Most recent instantaneous value: 26400 09-26-2025   09:00 GST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Add up to 2 more sites and replot for "Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 34.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages



Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 36 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --


Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 39.5 ft below NMVD03

Most recent instantaneous value: 47200 09-26-2025   09:00 GST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Add up to 2 more sites and replot for "Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 39.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages



Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 41.5 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --

Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 5.5 ft below NMVD03
 
-- Data temporarily unavailable for the time period specified --


Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 8.5 ft below NMVD03

Most recent instantaneous value: 3890 09-26-2025   09:00 GST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Add up to 2 more sites and replot for "Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, 8.5 ft below NMVD03"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages




Groundwater level above Northern Marianas Vertical Datum of 2003, feet

Most recent instantaneous value: 1.27 09-26-2025   09:00 GST
Graph of  Groundwater level above Northern Marianas Vertical Datum of 2003, feet

Add up to 2 more sites and replot for "Groundwater level above Northern Marianas Vertical Datum of 2003, feet"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages