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- 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 2025
01306440 CONNETQUOT BROOK AT CENTRAL ISLIP, NY
LOCATION - Lat 40°47'33", long 73°09'56" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, 200 ft downstream from culvert on Veterans Memorial Highway (State Route 454), 2.0 mi northeast of Central Islip, and 3.8 mi upstream from gaging station 01306499.
DRAINAGE AREA - 16.3 mi².
REVISIONS HISTORY - WDR-US-2009: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Occasional low-flow measurements, water years 1968, 1971-78. May 1979 to September 2013 (discontinued).
GAGE - Water-stage recorder and Parshall flume. Datum of gage is 29.93 ft above NGVD of 1929.
REMARKS - No estimated daily discharges. Records fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 40 ft³/s, Aug. 4, 1979, gage height, 1.56 ft; maximum gage height, 1.61 ft, June 13, 1998; minimum discharge, 0.25 ft³/s, part of each day Aug. 21-24, 27, 2002; minimum gage height, 0.09 ft, Aug. 23, 24, 27, 2002.
