USGS Water-Year Summary 2024
354315078300103 WK-334 RALEIGH HYDROGEOLOGIC RESEARCH STATION WC-2D NEAR RALEIGH, NC (GRANITE BEDROCK)
Piedmont and Blue Ridge crystalline-rock aquifers
Felsic Intrusive Igneous Rock
LOCATION - Lat 35°43'15", long 78°30'02" referenced to North American Datum of 1983, Wake County, NC, Hydrologic Unit 03020201, 9.3 mi east south east of Raleigh. Owner: NCDENR (North Carolina Department of Environment and Natural Resources), Division of Water Quality.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 460 ft. Upper casing diameter 6.25 in; top of first opening 59 ft, bottom of last opening 460 ft. [REPLACE AUTOGENERATED TEXT]Drilled observation well, depth 460 ft, diameter 6.25 in., cased to 59 ft, open hole from 59 to 460 ft, diameter 6 in.
DATUM - Land-surface datum is 188.19 ft above North American Vertical Datum of 1988. Measuring point: top of pvc casing, 2.58 ft above land-surface datum, Feb. 17, 2005 to Dec. 16, 2005; floor of instrument shelter, 2.78 ft above land-surface datum, Dec. 16, 2005 to Jun. 27, 2019; Top of casing, 2.58 ft above land-surface datum, Jun. 27, 2019 to present. [REPLACE AUTOGENERATED TEXT]floor of instrument platform, 2.79 ft above land-surface datum, December 16, 2005 to present.
PERIOD OF RECORD - May 2005 to June 2009 (discontinued). Continuous record began December 2005.
GAGE - Water-level recorder collecting data at 15-minute intervals. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 14.10 ft below land-surface datum, May 9, 2005; lowest water level recorded, 18.14 ft below land-surface datum, October 30, 31, November 10, 2008.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 460 ft. Upper casing diameter 6.25 in; top of first opening 59 ft, bottom of last opening 460 ft. [REPLACE AUTOGENERATED TEXT]Drilled observation well, depth 460 ft, diameter 6.25 in., cased to 59 ft, open hole from 59 to 460 ft, diameter 6 in.
DATUM - Land-surface datum is 188.19 ft above North American Vertical Datum of 1988. Measuring point: top of pvc casing, 2.58 ft above land-surface datum, Feb. 17, 2005 to Dec. 16, 2005; floor of instrument shelter, 2.78 ft above land-surface datum, Dec. 16, 2005 to Jun. 27, 2019; Top of casing, 2.58 ft above land-surface datum, Jun. 27, 2019 to present. [REPLACE AUTOGENERATED TEXT]floor of instrument platform, 2.79 ft above land-surface datum, December 16, 2005 to present.
PERIOD OF RECORD - Water years 2006, 2007.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: December 2005 to January 2007.
pH: December 2005 to January 2007.
WATER TEMPERATURE: December 2005 to January 2007.
DISSOLVED OXYGEN: December 2005 to January 2007.
INSTRUMENTATION - Water-quality monitor with satellite telemetry from December 2005 to January 2007. Electronic data logger with 60-minute recording interval.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 323 microsiemens, January 3, 4, 5, 6, 10, 2007; minimum recorded, 257 microsiemens, February 7, 2006.
pH: Maximum recorded, 7.7 standard units, on several days during the period; minimum recorded, 7.2 standard units, December 30, 2005.
WATER TEMPERATURE: Maximum recorded, 16.2°C, on many days during the period; minimum recorded, 16.0°C, on several days during the period.
DISSOLVED OXYGEN: Maximum recorded, 1.5 mg/L on several days during the period; minimum recorded, 0.1 mg/L, January 16, 2006.
DISSOLVED OXYGEN, PERCENT SATURATION: Maximum recorded, 15%, on several days during the period; minimum recorded, 1%, January 16, 2006.