USGS Water-Year Summary 2022
01451500 LITTLE LEHIGH CREEK NEAR ALLENTOWN, PA
LOCATION - Lat 40°34'56", long 75°29'00" referenced to North American Datum of 1927, Lehigh County, PA, Hydrologic Unit 02040106, on right bank at downstream side of bridge on Lehigh Parkway in Allentown, 0.8 mi upstream from Cedar Creek, and 2.9 mi upstream from mouth.
DRAINAGE AREA - 80.8 mi².
- WDR PA 73-1: 1946(M), 1951(P), 1955(M), 1956(M), 1958(M), 1962(M), 1963(M), 1965(M), 1969(M), 1971(M). WDR PA-87-1: 1946 to 1986(P).
PERIOD OF RECORD - October 1945 to current year. Prior to October 1946, published as "at Allentown".
GAGE - Water-stage recorder, crest-stage gage, and water-quality monitor. Datum of gage is 252.71 ft above North American Vertical Datum of 1988. Prior to October 31, 2022, the datum of gage was reported as 253.41 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
PERIOD OF DAILY RECORD - October 2019 to current.
COOPERATION - Funding for the operation of this station is provided by the U.S. Geological Survey.
INSTRUMENTATION - Specific conductance and water temperature sonde interfaced with a data collection platform, logging at 15-minute interval.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 1880 microsiemens/cm, Jan 17, 2022 (snowmelt); minimum, 85 microsiemens/cm, Sept 1, 2021. WATER TEMPERATURE: Maximum, 23.9 °C, Aug 3, 2020; minimum, 0.5°C, Feb 1, 2021.