USGS Water-Year Summary for Site 01010500

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	Available Parameters
	00060 Discharge(Mean)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

01010500 ST. JOHN RIVER AT DICKEY, ME

LOCATION - Lat 47°06'47", long 69°05'17" referenced to North American Datum of 1983, Aroostook County, ME, Hydrologic Unit 01010001, on right bank at downstream side of State Route 161 highway bridge at Dickey, 0.4 mi downstream from Little Black River, and 2.8 mi upstream from Allagash River.

DRAINAGE AREA - 2,695 mi².

REVISIONS HISTORY - WDR ME-82-1: Drainage area. WDR ME-95-1: 1993, 1994. WDR ME97-1: 1991(M) 1992 (M) 1994(P). Datum of gage is 590.11 ft above NAVD of 1988, prior to Jun. 14, 2024, datum of gage is 590.38 ft. above National Geodetic Vertical Datum of 1929.

SURFACE-WATER RECORDS

PERIOD OF RECORD - DISCHARGE: July to November 1910 and May to November 1911 (published as "near Dickey"), September 1946 to current year.

GAGE - Water-stage recorder. Datum of gage is 590.38 ft above National Geodetic Vertical Datum of 1929. Prior to December 1911, nonrecording gage at site 2,300 ft downstream at different datum. September 1946 to April 1962, water-stage recorder at site 1,300 ft downstream at same datum. April 1962 to August 1993, water-stage recorder at current site and datum. August 1993 to July 1998, water-stage recorder at site 500 ft downstream at same datum.

REMARKS -

Water Year 2023: Records good, except for estimated daily discharges, which are poor.

Water Year 2022: Records good, except for the period of orifice uncertainty after ice out, Apr. 16 to Sept. 8, which is fair, and estimated daily discharges, which are poor.

Water Year 2021: Records good, except for estimated daily discharges, which are poor.

Water Year 2020: Records good, except for estimated daily discharges, which are poor.

Water Year 2019: Records good, except for estimated daily discharges, which are poor.

Water Year 2018: Records good, except for period of no gage-height record, May 17 to June 5, which is fair, and estimated daily discharges, which are poor.

Water Year 2017: Records good, except for period of ice effect, Dec. 1 to Apr. 16, and period of no gage-height record, Dec. 2-3, which are poor.

Water Year 2016: Records good, except for period of ice effect, Nov. 24 to Apr. 19, which is poor.

Water Year 2015: Records good, except for periods of ice effect, Nov. 16-24, and Nov. 29 to Apr. 19, which are poor.

Water Year 2014: Records good, except for period of ice effect, Nov. 21 to Apr. 17, and period of no gage-height record, Mar. 17, which are poor.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 104,000 ft³/s, Apr. 30, 2008, gage height, 20.16 ft; maximum gage height, 37.89 ft, from flood marks, Apr. 9, 1991 (backwater from ice); minimum discharge, 106 ft³/s, Sept. 10, 2002.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL ANALYSES: Water years 1952, 1975, 1981. SPECIFIC CONDUCTANCE: April 1975 to September 1980. WATER TEMPERATURE: April 1975 to September 1980. SUSPENDED SEDIMENT DISCHARGE: October 1975 to September 1976.