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Almagosa River near Agat, Guam

GUAM LENS

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

EX-6 Rain Gage

133034144500801  EX-6 Rain Gage, Macheche, Guam
LOCATION.--Lat 13° 30' 34' N., Long 144° 50' 08" E., on pole about 100 ft from Macheche Exploratory Well EX-6.

PERIOD OF RECORD.—New station, established May 20, 2004. Record from May 20 to December 17, 2004.

EX-6 Exploratory Well

133034144500871,  Local number, 18-3050-04 Macheche Exploratory Well EX-6

LOCATION.--Lat 13° 30' 34' N., Long 144° 50' 08" E., Hydrologic Unit 20100003, Macheche area. Owner: Government of Guam

AQUIFER.--Barrigada Limestone

WELL CHARACTERISTICS.--Drilled basal ground water exploratory well. Sounded depth at time of drilling 407 ft, Well deepened to 462 ft in August, 1981. Sounded depth for this study 448 ft, Borehole diameter 12 in., Casing diameter 6 in., cased to bottom.

DATUM.—Altitude of land surface datum is 309 ft. Measuring point and new altitude (determined for this study): black inked triangle on top of PVC 6-in. casing, 309.06 ft above mean sea level. Old measuring point and previous measuring point altitude: top of steel surface casing, 309.40 ft above mean sea level.

PERIOD OF RECORD.—

Water Level: Occasional measurements, August 1978 to May 2004. Manual measurements for this study, May 18, 2004 to February 23, 2005. Water-level recorder, August 5, 2004 to February 23, 2005.

Water Quality: Occasional chloride, various other constituents, and specific conductance measurements from thief sampler at specific depths, August 1982 to September 1995. Specific-conductance profiles: using Ocean Sensors conductivity-temperature-depth logger: from May 15, 2001 to February 26, 2004, and for this study, May 18, 2004 to February 23, 2005. Fixed-depth specific-conductance hydrographs, from May 20, 2004 to February 23, 2005.

Data Files: (excel icon Microsoft Excel files)
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)

Rainfall line chart of EX-6 rain gage, NGL study, Macheche, Guam. Site number 133034144500801.

Water level:

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

Water level line chart of EX-6 exploratory well, Macheche, Guam. Site number 133034144500871.

Specific-conductance hydrographs:

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

Ex-6 Well plot, specific conductance sensor at -137.77 and -136.77 foot altitude.

Ex-6 Well plot, specific conductance sensor at -140.10 and -139.10 foot altitude.

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 EX-6 .

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 EX-6 .

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Page Last Modified: Tuesday, 15-Jan-2013 19:06:23 EST