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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.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2025
09400568 POLACCA WASH NEAR SECOND MESA, AZ
LOCATION - Lat 35°39'17.3", long 110°33'46.8" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 SW 1/4 sec.18, T.26 N., R.17 E., Navajo County, AZ, Hydrologic Unit 15020013, on the right bank, about 10 mi southwest of Second Mesa. Gage coordinates updated to improve precision, 03/18/2016.
DRAINAGE AREA - 905 mi².
REVISIONS HISTORY - WDR AZ-03-1: 2000(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - Apr. 1994 to current year.
GAGE - Water-stage recorder. Elevation of gage is 5,240 ft above sea level, from topographic map.
REMARKS - Records poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,141 ft³/s, July 30, 2017, gage height 10.08 ft. Minimum daily discharge, no flow for many days.
