USGS Water-Year Summary for Site 393617075380403

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	Available Parameters
	00010 Temperature, water(Max.,Mean,Min.)
	00095 Specific cond at 25C(Mean,Max.,Min.)
	62610 Elevation, GW, NGVD2(Max.,Min.,Mean) [Discontinued]
	72019 Water level, depth L(Mean,Max.,Min.)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

393617075380403 SCD-DP-10AA

Northern Atlantic Coastal Plain aquifer system
Columbia Group

LOCATION - Lat 39°36'16.80", long 75°38'03.55" referenced to North American Datum of 1983, New Castle County, DE, Hydrologic Unit 02040205,

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 2.40 ft. Upper casing diameter 2 in; top of first opening 1.9 ft, bottom of last opening 2.4 ft.

DATUM - Land-surface datum is 1.15 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of 2" PVC, 5.66 ft above land-surface datum, Nov. 16, 2011 to Dec. 15, 2011; Top of 4" PVC, 4.0 ft above land-surface datum, Dec. 14, 2011 to present.

PERIOD OF RECORD -

April 27, 2011, to March 21, 2013,

July 14, 2015, to September 01, 2016.

September 03, 2020, to April 24, 2024.

GAGE -

September 3, 2020, to end of Water Year 2024: Records good.

Water Years 2016 to September 3, 2020, No Data Collected.

Water Years 2015-2016 Records good.
Water-level measurements by U.S. Geological Survey personnel. Equipped with digital data recorder - 15 minute recording interval from September 21, 2015 to September 1, 2016.

REMARKS -

Drive point 10AA; USGS - Wetlands Study at Standard Chlorine, Delaware City. Missing data due to instrument removal during water quality sampling, periods of ice effects from frozen shallow subsurface soils, and site visits. This site is part of bioremediation research in a wetland setting. Water level data may only represent shallow, small-scale groundwater flow processes and not necessarily represent unconfined water-table conditions.

Site was discontinued; all equipment was removed during the 04/24/2024 visit.

EXTREMES FOR PERIOD OF RECORD -

New equipment installed 09/03/2020: Highest water-level recorded, 0.73 ft above land surface, January 10, 2024, recorder); lowest measured, 0.67 ft below land surface, December 27, 2020 (recorder).

Discontinued Equipment on 09/16/2016: Highest water-level recorded, 2.36 ft above sea level, October 5, 2015 (recorder); lowest measured, 1.12 ft above sea level, February 24, 2016.