USGS Water-Year Summary 2024
403226075343001 LE 860
Valley and Ridge aquifers
Allentown Formation
LOCATION - Lat 40°32'26", long 75°34'30" referenced to North American Datum of 1927, Lehigh County, PA, Hydrologic Unit 02040106, Lower Macungie Township, Ancient Oaks Development, Pembrook Drive, and adjacent to Little Lehigh Creek.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 100 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined. Cased to 58 ft.
DATUM - Land-surface datum is 357 ft above North American Vertical Datum of 1988. Measuring point: Measuring point on plywood shelf, 2.0 ft above land-surface datum, Jul. 7, 1967 to Mar. 18, 1981; Measuring point on plywood shelf, 2.95 ft above land-surface datum, Mar. 18, 1981 to present.
PERIOD OF RECORD - Daily Values Jun 1969 through Apr 1985. Continuous water levels Oct 1984 through Apr 1985 and Sep 2021 to present.
GAGE - Data collection platform with 15-minute recording interval since June 2023; prior, 60-minute recording interval. Satellite telemetry at station.
COOPERATION - Site maintained by the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Prior to October 2000, the extremes were based on extremes of the daily maximum depth below land-surface datum. Since that date, the extremes are based on the instantaneous depth below land-surface datum. Highest water level, 00.01 ft below land-surface datum, Jul 7, 1984; lowest, 12.07 ft below land-surface datum, Dec 18, 1981.