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

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 08158813

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(Max.,Min.,Mean)  
00065 Gage height(Min.,Mean,Max.)  

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

Print this page
USGS Water-Year Summary 2021
08158813 Bear Creek at Spillar Ranch Road near Manchaca, TX
LOCATION - Lat 30°09'49.18", long 97°54'25.27" referenced to North American Datum of 1983, Hays County, TX, Hydrologic Unit 12090205,
DRAINAGE AREA - 20.4 mi².  
PERIOD OF RECORD - April 2015 to current year.

Water-stage recorder. Satellite telemetry at station.

Datum of gage: 793.313 ft NAVD88 based on a Level 2 Static GNSS survey processed through OPUS with Ref Frame NAD83 (2011)(EPOCH:2010.0000) ITRF2014 (EPOCH:2021.0407) and Geoid 18.  The survey was completed on 01/15/2021 while occupying station survey point RM1. 

Prior to 01/15/2021 the datum of the gage was 792 ft NAVD88 as determined from a DEM. 

REMARKS - Records fair. No known regulation 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.