Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 330247079340300

! This page will be decommissioned in early 2026. Modernized Water Year Summary Reports are available in WDFN. Learn more about our modernization plans and timeline.
Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
72019 Water level, depth LSD(Mean)  

Water year 2025: 2025-10-01 to 2026-09-30
 
Print this page
USGS Water-Year Summary 2025
330247079340300 CHN- 101
Floridan aquifer system
Floridan Aquifer System
LOCATION - Lat 33°02'45.75", long 79°34'00.16" referenced to North American Datum of 1983, Charleston County, SC, Hydrologic Unit 03050202, Buckhall Campground, 300 ft southeast of State Highway 913 and U.S. Highway junction, 200 ft south of U.S. 17, near McClellanville.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 91 ft. Upper casing diameter 4 in; top of first opening 82 ft, bottom of last opening 91 ft.
DATUM - Land-surface datum is 22 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.4 ft above land-surface datum, Feb. 14, 1980 to Apr. 14, 2022; Top of new casing, 1.7 ft above land-surface datum, Apr. 14, 2022 to present.
PERIOD OF RECORD - February 1980 to September 2009 (discontinued).
GAGE - Data collection platform--60 minute collection interval.
REMARKS - Water-quality data available in District files. Gamma logged Feb. 15, 1980 to 91 ft. Gamma logged Dec. 18, 1979 to 90 ft.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 12.20 ft below land-surface datum, December 17, 2023; lowest daily water level, 15.17 ft below land-surface datum, July 24, 2024.