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Data Type | Begin Date | End Date | Count |
---|---|---|---|
Daily Data | |||
Groundwater level above local mean sea level (LMSL), feet | 1978-10-01 | 2008-06-01 | 9696 |
Groundwater level above Guam Vertical Datum of 2004, feet | 2008-06-03 | 2024-07-18 | 4829 |
Daily Statistics | |||
Groundwater level above local mean sea level (LMSL), feet | 1978-10-01 | 2008-06-01 | 9696 |
Groundwater level above Guam Vertical Datum of 2004, feet | 2008-06-03 | 2023-11-24 | 4758 |
Monthly Statistics | |||
Groundwater level above local mean sea level (LMSL), feet | 1978-10 | 2008-06 | |
Groundwater level above Guam Vertical Datum of 2004, feet | 2008-06 | 2023-11 | |
Annual Statistics | |||
Groundwater level above local mean sea level (LMSL), feet | 1979 | 2008 | |
Groundwater level above Guam Vertical Datum of 2004, feet | 2008 | 2024 | |
Field groundwater-level measurements | 1975-01-31 | 2024-07-22 | 286 |
Field/Lab water-quality samples | 1988-02-17 | 1988-12-01 | 27 |
Water-Year Summary | 2007 | 2022 | 16 |
Revisions | Loading... | ||
Additional Data Sources | Begin Date | End Date | Count |
For this site, "Field groundwater-level measurements" displayed in "Table of data" or "Tab-separated data" formats indicate water levels above two different vertical datums for each measurement date and time, although only one of the datums currently is appropriate and accurate for the measurement. In general, the appropriate vertical datum is date dependent. The appropriate datum for water levels measured before about 2005 to 2010 is LMSL (local mean sea level), whereas the appropriate datum for water levels measured after about 2005 to 2010 is the most current vertical datum available (GUVD04 for Guam; NMVD03 for Saipan). The dates that are appropriate for each datum are site specific and have yet to be determined for this site. Also, the vertical datum indicated in the graphical output of "Field groundwater-level measurements" may reflect an incorrect datum, depending on the range of dates being displayed.
Station operated in cooperation with the Water and Environmental Research Institute, University of Guam. |