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USGS Water-Year Summary 2024
180132067033800 143. VIVONI-COLONIA AMISTAD WELL, LAJAS, PR
Other aquifers
Lajas Vallay
Lajas Vallay
LOCATION - Lat 18°01'33", long 67°03'25" referenced to North American Datum of 1927, Lajas Municipio, PR, Hydrologic Unit 21010003, 1.86 mi (2.99 km) south of Lajas plaza, 1.27 mi (2.04 km) southeast of the Lajas Experimental Station, and 1.3 mi (2.09 km) northwest of the intersection of State Road 116 with State Road 305.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 200 ft. Upper casing diameter undefined; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 52.5 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF OPEN-HOLE INSIDE OF SHELTER, 2.96 ft above land-surface datum, Mar. 24, 2010 to present.
PERIOD OF RECORD - April 15, 1982 to current year.
GAGE - Water-stage recorder 60 minute interval.
COOPERATION - Funding for site provided by the Puerto Rico Environmental Quality Board and the U.S. Geological Survey.
PERIOD OF DAILY RECORD - October 20, 2010 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water-level recorded, 37.66 below land surface datum on May, 04 2012; lowest water-level recorded, 41.14 ft below land-surface datum, January 25, 26, 2016.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 200 ft. Upper casing diameter undefined; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 52.5 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF OPEN-HOLE INSIDE OF SHELTER, 2.96 ft above land-surface datum, Mar. 24, 2010 to present.
PERIOD OF RECORD - March 5, 2003 to April 17, 2008.
