USGS Water-Year Summary 2023
01021470 LIBBY BROOK NEAR NORTHFIELD, ME
LOCATION - Lat 44°48'03", long 67°43'30" referenced to North American Datum of 1983, Washington County, ME, Hydrologic Unit 01050002, on left bank, 0.9 mi southwest of the confluence with Machias River.
DRAINAGE AREA - 6.42 mi². Drainage Area (station description): Derived from automated delineation using 2-meter lidar data provided by USGS 3D Elevation Program, dated 01/01/2020, using North American Datum of 1983 Albers projection and North American Vertical Datum of 1988. Schoen, A.L., and Sturtevant, L.P., 2023, Maine StreamStats foundation data layers: U.S. Geological Survey data release, https://doi.org/10.5066/P94O5XPU.
REVISIONS HISTORY - WDR-US-2007-1: 2002(P), 2005(P), 2006(P). Gage height and discharge data for the period Oct. 31, 2018 to Apr. 1, 2019 were revised on July 15, 2020. As a seasonal gage, record during the winter months was erroneously available on NWISWeb, and was deleted. Drainage area revised on May 16, 2024, previously published as 7.79 sq miles.
SURFACE-WATER RECORDS
PERIOD OF RECORD - DISCHARGE: July 2000 to September 2017. Seasonal records (October, April through September) water years 2018 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 133.16 ft above North American Vertical Datum of 1988.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 302 ft³/s, Mar. 29, 2005, gage height, 4.40 ft; maximum gage height, 5.74 ft, Jan. 24, 2013 (backwater from ice); minimum discharge, 2.1 ft³/s, August 2, 2010.