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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
02206465 WATSON CREEK TRIBUTARY 2, TANGLEWOOD DRIVE, AT SNELLVILLE, GA
LOCATION - Lat 33°51'46.9", long 84°02'07.5" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103, at culvert on Tanglewood Drive, 0.9 miles west-northwest of Snellville.
DRAINAGE AREA - 0.20 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - 1987 to current year.
GAGE - Crest-stage partial-record gage. Datum of gage is 968.98 ft above NAVD 88. The NAVD 88 datum
of gage was determined from two Level II GNSS, single-base static surveys of RM
7 (REF
FRAME: NAD_83(2011)(EPOCH:2010.0000), GEOID18), completed by USGS personnel on
May 13 and 27, 2020. RM 7 was tied to the gage datum via conventional levels
completed by USGS personnel on May 28, 2020. Prior to December 3, 2020, the
manuscript stated the datum of gage was 970 ft above NGVD of 1929 as determined
via topographic map by USGS.
COOPERATION - Gwinnett County Department of Water Resources.
REMARKS -
For period: 03/12/2020-12/17/2020: Gage height records fair.
For period: 03/12/2020-12/17/2020: Gage height records fair.
EXTREMES FOR PERIOD OF RECORD - Maximum stage, 8.37 feet, July 16, 1989; maximum discharge, 168 cfs, July 16, 1989.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - March 2020 to current.
INSTRUMENTATION - Tipping bucket raingage.
