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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.
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USGS Water-Year Summary 2024
08398500 RIO PENASCO AT DAYTON, NM
LOCATION - Lat 32°44'36.41", long 104°24'50.87" referenced to North American Datum of 1983, Eddy County, NM, Hydrologic Unit 13060010, on left bank 1.2 mi upstream from U.S. Highway 285, 1.9 mi northwest of old Dayton railway station, 5.6 mi upstream from mouth, and 7.0 mi south of Artesia. Mouth at Pecos River mile 496.4.
DRAINAGE AREA - 1,060 mi². (approximately)
REVISIONS HISTORY - WSP 1242: 1951(M). WSP 1512: 1956. WSP 1923: 1955.
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1951 to February 2000, May 2000 to current year. Prior to October 1953, published as "near Dayton."
GAGE - Water-stage recorder with satellite telemetry, rock and concrete control, and crest-stage gage. Datum of gage is 3387.04 ft above NAVD88 as determined by a GNSS Level II rapid-static survey performed by the USGS on June 16, 2020. Prior to May 9, 1968, at site 2.4 mi downstream, at datum 44.30 ft lower. May 9, 1968, to June 12, 1975, at present site at datum 1.98 ft higher.
REMARKS - Water years 2014-2015; records good. Water years 2016-2018; records fair except for estimated discharges, which are poor. Water year 2019; records poor. Water year 2020; records fair except for estimated discharges, which are poor. Water years 2021-2023; records good. Diversions and ground-water withdrawals for irrigation of about 3,000 acres, 1959 determination, upstream from station. No flow most of time.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of about Sept. 22, 1941, reached a stage of about 9 ft, from floodmark, previous site and datum, discharge not determined. Peak discharge at discontinued station "near Dunken" (station 08397600), about 60 mi upstream, was 70,000 ft³/s, determined in 1956, from rating curve extended above a slope-area measurement of 36,000 ft³/s, for peak of Oct. 6 or 7, 1954.
