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DESCRIPTION:

Latitude 15°07'04.7",   Longitude -145°44'00.1"   NAD83
Saipan Municipality, Northern Mariana Islands   , Hydrologic Unit 22020000

Well depth: 357 feet
Hole depth: 363 feet
Land surface altitude: 204.95 feet above NMVD03.
Well completed in "Other aquifers" (N9999OTHER) national aquifer.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Daily Data
Groundwater level above local mean sea level (LMSL), feet	1998-05-13	2004-05-31	1602
Daily Statistics
Groundwater level above local mean sea level (LMSL), feet	1998-05-13	2004-05-31	1602
Monthly Statistics
Groundwater level above local mean sea level (LMSL), feet	1998-05	2004-05
Annual Statistics
Groundwater level above local mean sea level (LMSL), feet	1998	2004
Field groundwater-level measurements	1998-01-20	2023-12-04	93
Field/Lab water-quality samples	1990-02-06	1993-06-18	5
Revisions	Loading...

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"
indicate water levels above two different vertical datums (Local Mean
Sea Level, LMSL; and Northern Marianas Vertical Datum of 2003, NMVD03)
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. For this site, the
appropriate datum for water levels measured before 2006 is LMSL,
whereas the appropriate datum for water levels measured since 2006 is
NMVD03. Because the difference in altitude between the two datums at
this site cannot be accurately quantified from existing information, an
arbitrary difference of 1 foot was assumed. An altitude difference of 1
foot is generally consistent with the altitude difference between the
two datums at other Saipan sites. At this site, inaccuracy in the
assumed 1-foot altitude difference between datums will affect the water
levels relative to NMVD03 prior to 2006 and the water levels relative
to LMSL after 2006.