LOCATION.--Lat 42°08'32", long
74°15'54" referenced to North American Datum of 1983,
Greene County, NY, Hydrologic Unit 02020006, on left bank
downstream from bridge on Diamond Notch Road, about 1.0 mi
upstream from mouth, and about 1.0 mi north of
Lanesville.
DRAINAGE AREA.--1.95 mi².
PERIOD OF RECORD.--Occasional miscellaneous discharge
measurements, water years 1985-86, 1988-94. October 1997 to
current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum
of gage is 1,476.46 ft above NAVD of 1988.
REMARKS.--Water Years 2014-22: Records fair except those
for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 487
ft³/s, Aug. 28, 2011, gage height, 5.89 ft, from rating curve
extended above 230 ft³/s on basis of step-backwater analysis;
minimum, no flow Sept. 18, 19, 2001, as a result of temporary
drainage of gage pool by local fire department; minimum gage
height, 0.55 ft, Sept. 18, 2001.