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Almagosa River near Agat, Guam

GUAM LENS

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Groundwater monitoring, northern Guam Lens, May 2004-February 2005

GHURA-Dededo Rain Gage

1333100144504901 GHURA-Dededo Rain Gage, NGL Study, Dededo Guam

LOCATION.--Lat 13° 31' 00' N., Long 144° 50' 49" E., on fence that surrounds GHURA-Dededo Rain Gage (133100144504966) and the Public Utilities Agency of Guam Well D-9, within the Guam International Country Club golf course.

PERIOD OF RECORD.—New station, established May 18, 2004. Record from May 18, 2004 to February 24, 2005. Adjacent GHURA-Dededo Rain Gage 133100144504966: March 1987 to current year.

GHURA-Dededo Exploratory Well

133120144505471, Local number, 18-3150-10, GHURA-Dededo Exploratory Well

LOCATION.--Lat 13° 31' 20' N., Long 144° 50' 54" E., Hydrologic Unit 20100003, within the Guam International Country Club golf course. Owner: Government of Guam.

AQUIFER.--Barrigada Limestone

WELL CHARACTERISTICS.--Drilled basal ground water exploratory well. Sounded depth at time of drilling 785 ft, Sounded depth for this study 777 ft, Borehole diameter 12 in., Surface casing diameter 10 in., Inner PVC casing diameter 5 in., cased to bottom.

DATUM.—Altitude of land surface datum is 393 ft. Measuring point and new altitude (determined for this study): black inked triangle on top of PVC 5-in. casing, 395.87 ft above mean sea level. Old measuring point and previous measuring point altitude: top of steel surface casing, 393.90 ft above mean sea level.

PERIOD OF RECORD.—

Water Level: Occasional measurements, April 1979 to September 1985. Manual measurements for this study, May 18, 2004 to February 24, 2005. Water-level recorder, May 20, 2004 to February 24, 2005.

Water Quality: Occasional chloride, various other constituents, and specific conductance measurements from thief sampler at specific depths, October 1979 to June 1992. Specific-conductance profiles: using Ocean Sensors conductivity-temperature-depth logger: from December 5, 2000 to February 26, 2004, and for this study, May 18, 2004 to February 24, 2005. Fixed-depth specific-conductance hydrographs, from May 18, 2004 to February 24, 2005.

Data Files: (excel icon  Note: Tipping-bucket rainfall data is provided in two formats: as daily total rainfall (daily), and as a time and date of bucket tip (event). Each tip is an accumulation of 0.01 inches.

Rainfall:

pdf icon Rainfall and water-level hydrograph (1 Mb PDF)

Ghura-Dededo Rainfall.

Water level:

pdf icon Rainfall and water-level hydrograph (1 Mb PDF)

Ghura-Dededo Rainfall.

Specific-conductance hydrographs:

pdf icon Specific-conductance hydrographs (1 Mb PDF)

Ghura Dededo Well

Ghura Dededo Well

Ghura Dededo Well

Specific-conductance profiles:

PDF version of this graph can be customized. Click on the "Layers" tab on the left margin of the Adobe Acrobat window and select dates to be displayed.

Line chart showing specific conductance versus altitude for exploratory well Ghura Dededo .

Temperature profiles:

PDF version of this graph can be customized. Click on the "Layers" tab on the left margin of the Adobe Acrobat window and select dates to be displayed.

Line chart showing temperature versus altitude for exploratory well Ghura Dededo .

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Page Last Modified: Tuesday, 15-Jan-2013 19:06:20 EST