USGS Water-Year Summary for Site 384428075355701

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	Available Parameters
	00010 Temperature, water(Med.)
	00095 Specific cond at 25C(Med.)
	00300 Dissolved oxygen(Med.)
	00400 pH(Med.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

384428075355701 Oc15-11

Northern Atlantic Coastal Plain aquifer system
Columbia Group

LOCATION - Lat 38°44'27.87", long 75°35'56.55" referenced to North American Datum of 1983, Sussex County, DE, Hydrologic Unit 02080109,

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 119 ft. Upper casing diameter 12 in; top of first opening 100 ft, bottom of last opening 119 ft.

DATUM - Land-surface datum is 41.56 ft above National Geodetic Vertical Datum of 1929. Measuring point: Undefined.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 119 ft. Upper casing diameter 12 in; top of first opening 100 ft, bottom of last opening 119 ft.

DATUM - Land-surface datum is 41.56 ft above National Geodetic Vertical Datum of 1929. Measuring point: Undefined.

PERIOD OF DAILY RECORD -

WATER TEMPERATURE: June 2014 to May 2019 (discontinued).

SPECIFIC CONDUCTANCE: June 2014 to May 2019 (discontinued).

pH: June 2014 to May 2019 (discontinued).

DISSOLVED OXYGEN: June 2014 to May 2019 (discontinued).

INSTRUMENTATION - Multi-parameter water-quality monitor with flow-cell installed near well.

REMARKS -

For Water Year 2019, records good.
For Water Year 2018, records good.
For Water Year 2017, records good.
For Water Year 2016, records good.
For Water Year 2015, records good.

Water-quality data are affected by well stabilization and are only collected during known pumping intervals as controlled by the DCP. Missing record due to periodic equipment malfunction, maintenance and repair.

EXTREMES FOR PERIOD OF RECORD -

WATER TEMPERATURE: Maximum, 16.3 °C, July 12, 2015 (recorder). Minimum 15.3 °C, February 17, 2015 (recorder).

SPECIFIC CONDUCTANCE: Maximum, 218 microsiemens per centimeter, May 18, 2019; minimum, 95 microsiemens per centimeter, September 13, 2000.

pH: Maximum, 6.2, October 13, 2015; minimum, 4.9, August 10, 2017.

DISSOLVED OXYGEN: Maximum, 7.6 milligrams per liter, August 26, 2008; minimum, 5.8, January 20, 2019 (recorder).