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USGS 133032144491871 M-10A, Harmon Loop School, Dededo, Guam

  Well Site

DESCRIPTION:
Latitude 13°30'38.2",   Longitude -144°49'26.9"   NAD83
Guam, Guam   , Hydrologic Unit 22010000
Well depth: not determined.
Land surface altitude: 227.79 feet above GUVD04.
Well completed in "Other aquifers" (N9999OTHER) national aquifer.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2006-02-17  2024-02-27  
 Daily Data
    Groundwater level above local mean sea level (LMSL), feet  1982-09-30  2006-02-26  7581 
    Groundwater level above Guam Vertical Datum of 2004, feet  2006-02-18  2024-02-26  5692 
 Daily Statistics 
    Groundwater level above local mean sea level (LMSL), feet  1982-09-30  2006-02-26 7581 
    Groundwater level above Guam Vertical Datum of 2004, feet  2006-02-18  2020-01-15 5021 
 Monthly Statistics 
    Groundwater level above local mean sea level (LMSL), feet  1982-09  2006-02  
    Groundwater level above Guam Vertical Datum of 2004, feet  2006-02  2020-01  
 Annual Statistics 
    Groundwater level above local mean sea level (LMSL), feet  1982  2006  
    Groundwater level above Guam Vertical Datum of 2004, feet  2006  2020  
 Field groundwater-level measurements 1973-11-30  2023-01-31  274 
 Water-Year Summary 2007  2020  14 
 Revisions  Loading...

Additional Data Sources

Begin Date

End Date

Count
OPERATION:
Record for this site is maintained by the USGS Pacific Islands Water Science Center
Email questions about this site to Pacific Islands Water Science Center Water-Data Inquiries
ADDITIONAL INFORMATION
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.

weri Station operated in cooperation with the Water and Environmental Research Institute, University of Guam.