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Water-Year Summary for Site 02208050

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00045 Precipitation(Sum)  
00065 Gage height(Max.,Min.,Mean)  

Water year 2020: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2020
02208050 ALCOVY RIVER NEAR LAWRENCEVILLE, GA
LOCATION - Lat 33°58'42.8", long 83°56'21.0" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103, at bridge on US 29, 3.2 miles northeast of Lawrenceville.
DRAINAGE AREA - 9.97 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: Water Years 1965 to 1974, 1995 to 2003 (annual maximum only); October 2005 to October 2015.
GAGE-HEIGHT: Water Years 1965 to 1974, 1995 to 2003 (annual maximum only); October 2003 to current year.
GAGE - Satellite telemetry with water-stage recorder. Datum of gage is 920 feet above National Geodetic Vertical Datum (NGVD) of 1929 (from topographic map). Prior to April 23, 2003, station was operated as a crest-stage partial-record station at same location and different datum.
COOPERATION - Gwinnett County Department of Water Resources.
REMARKS -
For period: 10/01/2013-09/30/2014: Gage height records fair, discharge records poor.
For period: 10/01/2014-09/30/2015: Gage height records fair, discharge records poor.
For period: 10/01/2015-09/30/2016: Gage height records fair.
For period: 10/01/2016-09/30/2017: Gage height records fair.
For period: 10/01/2017-09/30/2018: Gage height records fair.
For period: 10/01/2018-09/30/2019: Gage height records fair.
For period: 10/01/2019-09/30/2020: Gage height records fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 2,200 cfs, estimated from rating curve extended above 920 cfs based on drainage area comparison, September 21, 2009; maximum gage-height recorded, 8.29 feet, September 21, 2009; minimum daily discharge, 0.26 cfs, October 17, 2011.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - April 2003 to current year.
INSTRUMENTATION - Tipping-bucket raingage.