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Water-Year Summary for Site 393402077434201

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Available Parameters
72019 Water level, depth LSD(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
393402077434201 WA Ci 82
Valley and Ridge aquifers
Conococheague Limestone
LOCATION - Lat 39°34'02", long 77°43'42" referenced to North American Datum of 1927, Washington County, MD, Hydrologic Unit 02070004, at Maryland Correction Institution, near Lappans.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 84 ft. Upper casing diameter 6 in; top of first opening 32 ft, bottom of last opening 84 ft.

Drilled, observation, water-table well; open hole below 32 ft.

Well sounded to 87.2 ft from MP on February 25, 2020. Well clean on bottom.

DATUM - Land-surface datum is 500 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel casing, 2.30 ft above land-surface datum, Feb. 21, 1997 to present.

Land-surface datum is 500 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel casing, 2.30 ft above land-surface datum, Feb. 21, 1997 to January 21, 2020.

Levels run into site January 21, 2020 show elevation of land surface is 506.48 above North American Vertical Datum of 1988 starting January 21, 2020 to present. No change to top of well casing MP of 2.30 ft.

PERIOD OF RECORD - February 1978 to current year.
GAGE - Equipped with digital water-level recorder from April 1978 to June 1981, August 2003 to October 2010. Monthly water-level measurements by U.S. Geological Survey personnel.
REMARKS - Maryland Groundwater-Level Monitoring Network observation well.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 27.75 ft below land surface, December 17, 2018; lowest measured, 59.28 ft below land surface, February 1, 1981.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 84 ft. Upper casing diameter 6 in; top of first opening 32 ft, bottom of last opening 84 ft.

Drilled, observation, water-table well; open hole below 32 ft.

Well sounded to 87.2 ft from MP on February 25, 2020. Well clean on bottom.

DATUM - Land-surface datum is 500 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel casing, 2.30 ft above land-surface datum, Feb. 21, 1997 to present.

Land-surface datum is 500 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel casing, 2.30 ft above land-surface datum, Feb. 21, 1997 to January 21, 2020.

Levels run into site January 21, 2020 show elevation of land surface is 506.48 above North American Vertical Datum of 1988 starting January 21, 2020 to present. No change to top of well casing MP of 2.30 ft.

PERIOD OF RECORD - Intermittent water-quality records for this well since 2007
COOPERATION - Samples and field data were collected by the Maryland Geological Survey