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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.
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USGS Water-Year Summary 2024
08105505 Willis Creek near Granger, TX
LOCATION - Lat 30°42'07.8", long 97°26'03.0" referenced to North American Datum of 1983, Williamson County, TX, Hydrologic Unit 12070205, on the left, downstream side of the County Road 347 Bridge, 1/4 mile downstream of SH 95, 1 mile south of Granger.
DRAINAGE AREA - 57.8 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 2008 to current year.
GAGE -
Water stage recorder. Satellite telemetry at station.
Datum of gage: 513.879 ft NAVD88 based on a Level 2 Static GNSS survey processed through OPUS with Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2021.2321) and Geoid 18. The survey was completed on 3/26/2021 while occupying a TRM referenced to local datum via differential levels.
Prior to 3/26/2021 the datum of the gage was 538 ft NAVD88 as determined by GPS (GWSI Method Code "G")
REMARKS - Records fair except for discharges below 5 ft³/s and estimated discharges, which are poor. No known regulations or diversions. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
