USGS Water-Year Summary 2024
390348078035501 46W175
Valley and Ridge aquifers
Conococheague Limestone
LOCATION - Lat 39°03'48", long 78°03'55" referenced to North American Datum of 1927, Clarke County, VA, Hydrologic Unit 02070007, 1.5 mi east of the intersection of U.S. Highways 17/50 and 340 at Blandy Experimental Farm. Owner: University of Virginia.
GROUNDWATER RECORDS
DATUM - Land-surface datum is 601.91 ft above North American Vertical Datum of 1988. Measuring point: TOP OF STEEL CASING, 3.70 ft above land-surface datum, Jul. 1, 1987 to present.
PERIOD OF RECORD - July 1987 to current year.
GAGE - Electronic data logger and pressure transducer, 15-minute record interval. Prior to Feb. 28, 2000, digital recorder, 60-minute punch.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 22.68 ft below land-surface datum, Dec. 16, 2018; lowest recorded, 45.66 ft below land-surface datum, Sept. 21, 2002.