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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
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USGS Water-Year Summary 2025
08390800 RIO HONDO BELOW DIAMOND A DAM, NEAR ROSWELL, NM
LOCATION - Lat 33°17'59.53", long 104°43'18.03" referenced to North American Datum of 1983, Chaves County, NM, Hydrologic Unit 13060008, on left bank 500 ft downstream from outlet conduit of Diamond A Dam (Two Rivers Reservoir), 13 mi southwest of Roswell, and at mile 33.3.
DRAINAGE AREA - 963 mi². (contributing area)
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1963 to current year.
GAGE - Water-stage recorder with satellite telemetry, concrete control, and crest-stage gage. Datum of gage is 3951.42 ft above NAVD88 as determined by a GNSS Level II rapid-static survey performed by the USGS on May 15, 2023.
REMARKS - Water years 2014-2020; records good except for estimated discharges, which are poor. Water years 2021-2024; records fair except for estimated discharges, which are poor. Diversions and ground-water withdrawals for irrigation of about 6,500 acres, 1959 determination, upstream from station. This record represents the outflow from Two Rivers Reservoir through Diamond A Dam 0.1 mi upstream; flow from reservoir can also be discharged into Rocky Arroyo through Rocky Dam (see REMARKS for station 08390600).
