Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 09404200

Click to hide Water-Year Summary instructions and information
  • 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.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30

Print this page
USGS Water-Year Summary 2021
LOCATION - Lat 35°46'25", long 113°21'46" referenced to North American Datum of 1927, in sec.33, T.28 N., R.10 W., Mohave County, AZ, Hydrologic Unit 15010002, in Lake Mead National Recreation Area, on the right bank, 0.6 mi upstream from Diamond Creek, 138 mi downstream from Phantom Ranch, 25 mi north of Peach Springs, 242 mi downstream from Glen Canyon Dam, and 130 mi upstream from Hoover Dam. (unsurveyed).
DRAINAGE AREA - 149,316 mi² of which 4,656 mi² probably is noncontributing, in the Great Divide Basin in southern Wyoming (previously considered part of the Missouri River Basin) and on the Colorado Plateau.
PERIOD OF RECORD - June 1983 to Dec. 1983, Sept. 1985 to Feb. 1986, Oct. 1989 to current year.
GAGE - Water-stage recorder. Elevation of gage is 1,340 ft above sea level, from topographic map.
REMARKS - No estimated daily discharge. Records good. Flow regulated since Mar. 13, 1963, by Lake Powell 242 mi upstream. Many diversions above Lake Powell for irrigation, municipal, and industrial use. Several unregulated tributaries below Glen Canyon Dam.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge since at least 1868, about 300,000 ft³/s, about July 8, 1884, based on flow studies at Lees Ferry.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 97,000 ft³/s, June 30, 1983, gage height, unknown; minimum instantaneous, 3,710 ft³/s, Mar. 21, 1990, gage height, 43.89 ft.
PERIOD OF RECORD - June 1983 to Dec. 1983, Sept. 1985 to Feb. 1985, Sept. 1989 to Apr. 1993, and Nov. 1996 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE:Aug. 1990 to Apr. 1993, Oct. 2006 to current year. pH:Aug. 1990 to Apr. 1993. WATER TEMPERATURE:Aug. 1990 to Apr. 1993. Oct. 2006 to current year. DISSOLVED-OXYGEN CONCENTRATION:Aug. 1990 to Apr. 1993. SUSPENDED-SEDIMENT DISCHARGE:Aug. 1990 to Apr. 1993.