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Water-Year Summary for Site 01487170

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
62615 Elevation, lake/res, NAVD88(Max.,Min.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
01487170 HEARNS POND NEAR SEAFORD, DE
LOCATION - Lat 38°40'48.2", long 75°35'40.1" referenced to North American Datum of 1983, Sussex County, DE, Hydrologic Unit 02080109, located at northeast shore, near spillway and upstream of Bridgeville Highway, 1.8 mi northeast of Seaford.
REVISIONS HISTORY - Revisions: Elevation for the period June 20, 2021, to December 1, 2022, were revised on April 22, 2024 based on observation of a lagging orifice and not regulation which was thought to be case. 
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 2015 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 0.00 ft above North American Vertical Datum of 1988.
REMARKS -
  • Water Years 2022: Records fair.
  • Water Years 2021: Records good, missing data due to equipment malfunction
  • Water Years 2018-2020: Records good.
  • Water Years 2016-2017: Records good, missing data due to equipment malfunction, or for periods when the orifice was out of the water due to dam construction.
  • Water Year 2015: Records good, missing data due to equipment malfunction.

    • Elevation of lake can be controlled by lift boards. U.S. Geological Survey satellite data-collection platform at station.
    EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 27.72 ft, September 30, 2016; minimum elevation, 21.80 ft, April 16, 2017, may have been lower during period of construction of new dam.