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Discharge Rate Measurement Locations
| Discharge Flow Rate | 30 Day Mean | 60 Day Mean | Alarm Trigger | Critical Trigger | Emergency Trigger | |
| Region K | ||||||
 |
Pedernales Rv nr Johnson City, TX (08153500) as of 2019-12-12 | 20.51 | 18.76 | 31.6 | 10.2 | 2.23 |
| Days with flow Above Stage Trigger | 0 | 48 | 60+ | |||
| Days with flow Below Stage Trigger | 30+ | 0 | 0 | |||
|
Onion Ck nr Driftwood, TX (08158700) as of 2019-12-12 | 2.8 | 1.81 | |||
| Region L | ||||||
|
Blanco Rv at Wimberley, TX (08171000) as of 2019-12-12 | 30.51 | 31.54 | 28.5 | 14.5 | 9.28 |
| Days with flow Above Stage Trigger | 0 | 60+ | 60+ | |||
| Days with flow Below Stage Trigger | 1 | 0 | 0 | |||
|
Jacobs Well Spg nr Wimberley, TX (08170990) as of 2019-12-12 | 1.73 | 2.36 | |||
River and spring discharge rate information provided by USGS is shown in the table above, along with HTGCD drought
stage trigger levels for the primary rivers in the district. The 30 and 60 Day Mean figures have been computed based
on the historical USGS daily mean data. Discharge flow rate is shown in cubic feet per second (cfs).
To view USGS graphs or detail information, click on the USGS logo on the left or the map points.
National and state drought information links
The Hays Trinity Groundwater Conservation District consists of 2 Regions that rely on different measures for determining drought status.
The northern region, Region K, drought status is determined by the Pedernales River discharge rate and the Henly Church well water level.
The southern region, Region L, drought status is determined by the Blanco River discharge rate, Jacob's well discharge rate and the Mt. Baldy well water level.
Graphs provided by USGS are shown for the primary and secondary rivers and springs in the district.
National Drought Mitigation Center
NOAA Weekly Drought Severity Index - National
TWDB Main Drought Page
TWDB Water Resource Planning information for Texas.
Texas Drought Monitor Map
Palmer Drought and Crop Moisture - Table
For print version with graphs included, Click here