USGS Water-Year Summary for Site 380457075122302

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	62611 Elevation, GW, NAVD8(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

380457075122302 WO Ff 12

Northern Atlantic Coastal Plain aquifer system
Sinepuxent Formation

LOCATION - Lat 38°04'57.7", long 75°12'23.8" referenced to North American Datum of 1983, Worcester County, MD, Hydrologic Unit 02040303,

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 12.1 ft. Upper casing diameter 2 in; top of first opening 7.1 ft, bottom of last opening 12.1 ft. Drilled, observation, water-table well.

DATUM - Land-surface datum is 3.18 ft above North American Vertical Datum of 1988. Measuring point: MP is top of hole lip, 1.81 ft above land-surface datum, Sep. 30, 2014, to present.

PERIOD OF RECORD - August 2010 to September 2010 and October 2014 to September 2015.

GAGE - For 2015 Water Year, records fair. Water-level measurements by U.S. Geological Survey personnel. Equipped with non vented pressure sensor with 6 minute recording interval, October 2014 to September 2015.

REMARKS - Well KM28 A Shallow - Assateague sea level rise study.

EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 2.93 ft above sea level, January 24, 2015 (recorder); lowest measured, 0.21 ft above sea level, September 9, 2015 (recorder).

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 12.1 ft. Upper casing diameter 2 in; top of first opening 7.1 ft, bottom of last opening 12.1 ft. Drilled, observation, water-table well.

DATUM - Land-surface datum is 3.18 ft above North American Vertical Datum of 1988. Measuring point: MP is top of hole lip, 1.81 ft above land-surface datum, Sep. 30, 2014, to present.

PERIOD OF DAILY RECORD - October 2014 to October 2015

INSTRUMENTATION - Multi-parameter water-quality monitor

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 1,740 microsiemens/cm, October 15, 2014; minimum, 586 microsiemens/cm, April 20, 2015. WATER TEMPERATURE: Maximum, 20.3°C, multiple days in 2015; minimum, 7.9°C, March 7 and 8, 2015.