Skip to main content

Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Biological Water-quality 1979-05-10 1981-09-22
Information Water-quality 1979-04-04 1986-08-28
Inorganics, Major, Metals Water-quality 1967-10-18 1986-08-28
Inorganics, Major, Non-metals Water-quality 1967-10-18 1986-08-28
Inorganics, Minor, Non-metals Water-quality 1979-06-13 1986-07-16
Inorganics, Minor, metals Water-quality 1979-06-13 1986-07-16
Microbiological Water-quality 1979-04-04 1986-08-28
Nutrient Water-quality 1967-10-18 1986-08-28
Organics, other Water-quality 1979-04-04 1981-09-22
Physical Daily Values, Unit Values, Water-quality 1939-09-17 2024-11-21
Population/Community Water-quality 1979-05-10 1981-09-22
Radiochemistry Water-quality 1981-03-17 1981-07-14
Sediment Water-quality 1979-04-04 1986-08-28
n/a Peak Measurements 1935-06-14 2023-05-21
n/a Site Visits 1939-05-16 2024-10-09
n/a USGS Annual Water Data Reports Site 2005-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 08151500 is associated with a Stream in Llano County, Texas. Current conditions of Discharge and Gage height are available. Water data back to 1935 are available online.

The elevation of this station has been determined to be 970.08 feet above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988 add 970.08 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
08151500 n/a
Site name
Llano Rv at Llano, TX n/a
Site type
Stream
ST
DMS latitude 304504 n/a
DMS longitude 0984010 n/a
Decimal latitude 30.7513041 n/a
Decimal longitude -98.6697773 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 5 sec. F
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Texas 48
State
Texas 48
County
Llano County 299
Country US n/a
Land net location description n/a
Name of location map Llano North, TX n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 970.08 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .21 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
12090204
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
4197 square miles n/a
Contributing drainage area 4192 square miles n/a
Time Zone abbreviation CST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files NYNNNNNN n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number 8653-00120 n/a

Operated in cooperation with:

logo for Lower Colorado River Authority
Lower Colorado River Authority
logo for USGS - Cooperative Matching Funds
USGS - Cooperative Matching Funds