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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
12513000 ESQUATZEL COULEE AT CONNELL, WA
LOCATION - Lat 46°39'49", long 118°51'44" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.25, T.14 N., R.31 E., Franklin County, WA, Hydrologic Unit 17020016, on right bank, at Clark Street Bridge in Connell, and 7.8 mi downstream from Hatton Coulee.
DRAINAGE AREA - 234 mi². Flow in the Esquatzel Coulee originates primarily as irrigation water diverted from the Columbia River at Grand Coulee Dam and discharged back into the Columbia River through the Esquatzel Diversion Channel upstream from Pasco WA.
REVISIONS HISTORY - WSP 1933: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1952 to September 2013. Records published for period August 1959 to September 1964 include effluent from sewage treatment plant 0.8 mi downstream; records adjusted to exclude effluent October 1964 to June 1967.
GAGE - Water-stage recorder. Elevation of gage is 820 ft above NGVD of 1929, from topographic map. Prior to Aug. 7, 1959, at site 0.4 mi downstream at different datum, Aug. 7, 1959, to July 8, 1967, at site 0.9 mi downstream at different datum, July 9, 1967, to Oct. 28, 1981, at site 0.7 mi downstream at different datum, and Oct. 29, 1981, to Sept. 30, 1984 at datum 10 ft lower.
REMARKS - No diversion upstream from station. Most flow for October, and April through September is return and waste from water imported for irrigation, entering about 3 mi upstream on the right bank. U.S. Geological Survey satellite telemeter at gage.
EXTREMES FOR PERIOD OF RECORD -
Maximum discharge, 5,560 ft³/s, February 21, 1956, gage height, 12.68 ft. Site and datum then in use.
Maximum gage height 19.78 ft. December 27, 2022 at current datum; no flow at times during most years.
