Nueces River Update — October 8, 2025
Tracking salinity, temperature, and TDS levels to better understand the health of the Nueces River Basin.
The Nueces River serves as a lifeline for South Texas — from ranchlands to rural communities, its flow connects people, wildlife, and ecosystems across the region. Each week, the Nueces Groundwater Conservation District (NGCD) records and reviews river data to ensure that water quality remains steady and that early signs of environmental change are carefully documented.
Our latest sampling, conducted on October 8, 2025, provides an important look at current river conditions across three key monitoring points:
Upstream Site
Salinity: 0.6
Total Dissolved Solids (TDS): 813 mg/L
Temperature: 82.0°F
The upstream section continues to reflect low salinity and balanced TDS levels — a healthy indicator of freshwater stability with limited saltwater movement.
Well Cluster Site
Salinity: 3.4
Total Dissolved Solids (TDS): 4,072 mg/L
Temperature: 80.9°F
This week’s highest readings came from the well cluster site, where higher mineral content may be linked to slower recharge movement or increased concentration in groundwater storage areas.
Hazel Bazemore Boat Ramp
Salinity: 1.0
Total Dissolved Solids (TDS): 1,326 mg/L
Temperature: 79.7°F
Measurements at Hazel Bazemore reflect steady mid-river conditions, remaining within normal ranges for early fall and providing key data for tracking potential saltwater influence upstream.
Why These Readings Matter
By recording and comparing salinity, TDS, and temperature across multiple sites, NGCD continues to build a clear picture of the health of the Nueces River system. These measurements help identify long-term patterns, seasonal shifts, and early warning signs of changes that could affect local aquifers and water supplies.
As always, NGCD remains dedicated to our mission: to conserve, preserve, and protect the groundwater resources that sustain the people, land, and legacy of Nueces County.
