Modeling Data Confirms Environmental Safety for Bay
In a major step forward, GHD released vital modeling data for Corpus Christi’s flagship desalination project, IHWTC.
Data commissioned by Kiewit confirms the IHWTC project will fully comply with strict Texas environmental discharge permit requirements. More importantly, the study reveals that the project will not negatively impact Corpus Christi Bay, a concern that has lingered among environmental advocates and residents alike.
Millions of Simulations, One Clear Conclusion
To arrive at these conclusions, GHD ran over 400 million modeling iterations. These simulations assessed various near- and far-field discharge and intake scenarios under fluctuating environmental and water quality conditions.
According to the findings, the IHWTC’s intake and discharge processes will operate safely within regulated limits. Furthermore, the model confirmed that all intake conditions fall within the treatment plant’s design tolerances, ensuring smooth operation even during unexpected environmental shifts.
High-Force Jet Diffusion Proves More Than Effective
One of the most promising aspects of the modeling data relates to the project’s discharge design — a system that uses high-force jet diffusion. This method exceeds TCEQ’s minimum requirements by an impressive 50%, demonstrating exceptional effectiveness at dispersing saline discharge back into the Bay.
This enhanced performance means faster dilution and a quicker return to natural salinity levels, minimizing risks to marine habitats and ensuring a healthier aquatic ecosystem.
Marine Life Faces No Harm, Study Confirms
As the model dug deeper, it also considered the salinity tolerances of marine species commonly found in Corpus Christi Bay. The data showed no threat to key species like red and black drum, seatrout, sheepshead, southern flounder, grey snapper, blue crab, and white and brown shrimp. At the entrance of the Ship Channel into the Bay — a critical area for aquatic life — salinity remained within healthy limits.
Furthermore, the intake modeling assessed existing and future discharges, diversions, and natural factors like tides and currents. As a result, intake salinity levels remained consistently below limits, easing concerns about treatment or ecosystem stress.
City Leaders Applaud Findings and Move Forward
Consequently, COO Drew Molly voiced strong support, stating GHD’s data confirms Kiewit’s impressive, Bay-safe design approach.
This public assurance comes as the City continues to face scrutiny over the environmental consequences of building Texas’s first large-scale seawater desalination plant. However, the latest data has significantly strengthened the case for the IHWTC’s viability and safety.
About the Inner Harbor Water Treatment Campus
Ultimately, Corpus Christi’s Desalination Project, the IHWTC, stands as a cornerstone of long-term water security planning. Moreover, the facility uses advanced desalination technology to convert seawater into potable water, thereby ensuring a reliable, drought-proof supply for Corpus Christi.
What sets this initiative apart is its threefold focus on:
- Affordability – ensuring water rates remain manageable for residents.
- Environmental Sustainability – reducing reliance on freshwater sources.
- Operational Reliability – maintaining water access even during climate extremes.
Years of planning, regulatory reviews, and engineering work have led to this point. Now, with strong modeling results in hand, the project is ready to advance with greater public confidence and scientific backing.
What’s Next?
Moving forward, the City will continue working with GHD, Kiewit, and regulators to exceed permit requirements. In addition, future updates will include progress on construction timelines, community outreach, and additional monitoring results.
In the meantime, residents can rest assured that this landmark project remains both technically sound and environmentally responsible.