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.
USGS Water-Year Summary 2024
324729079472001 CHN- 14
Southeastern Coastal Plain aquifer system
Middendorf Formation
Middendorf Formation
LOCATION - Lat 32°47'29", long 79°55'43" referenced to North American Datum of 1927, Charleston County, SC, Hydrologic Unit 03050202, 100 ft west of Concord St. and 50 ft south of Charlotte St.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 2,007 ft. Upper casing diameter 6 in; top of first opening 1,887 ft, bottom of last opening 2,007 ft.
DATUM - Land-surface datum is 6.54 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 2.00 ft above land-surface datum, Apr. 2, 1990 to present; Measuring point at top of well casing, distance above land-surface datum not defined, Sep. 13, 2016 to Sep. 13, 2016. Land-surface datum is 6.54 ft above NAVD of 1988. Measuring point: Top of casing, 2.00 ft above land-surface datum, Apr. 2, 1990 to present; Measuring point at top of well casing, distance above land-surface datum not defined, Sep. 13, 2016 to Sep. 13, 2016.
PERIOD OF RECORD - April 1990 to current year.
GAGE - Data collection platform--15 minute collection interval.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 1.16 ft below land-surface datum, May 21, 30, 1991; lowest water level 104.90 ft below land-surface datum, Aug. 13, 2004.
