What is happening to Corpus Christi’s water supply? The city of Corpus Christi declared a stage 3 drought on December 16, 2024. The declaration of the stage 3 drought status was triggered by the city’s combined lake levels from Lake Corpus Christi and Choke Canyon Reservoir once the levels dropped below 20% capacity on December 11, 2024.
But what is exactly does stage 3 in Corpus Christi mean? Well, stage 3 in Corpus Christi means the city is under the most severe water restrictions. This includes a ban on all outdoor watering, prohibiting home vehicle washing- with the exception of commercial car washes, and limiting other activities that have higher level water usages. The city of Corpus Christi began enforcing these restrictions once the city declared the water crisis at stage 3 in December of 2024, with non-compliance citations being issued starting January 1, 2025, and the stage 3 water drought status has remained in place through 2026. During a draft city council workshop presentation evaluation, it is believed Corpus Christi has the possibility to enter a Level 1 Water Emergency by September of 2026. The city’s drought contingency plan states that a level 1 water emergency will be declared if the city is within 180 days of not having the capability to meet water demand. With ongoing drought conditions and a lack of action to plan for now, forecasts are indicating the city’s primary water sources to near depletion sooner than expected, by mid 2026.
The city of Corpus Christi gets its water supply from four main reservoirs. The Western supplies come from Choke Canyon Reservoir and Lake Corpus Christi which flows into the Nueces River. The Eastern supplies come from Lake Texana and the Colorado River which flows into the Mary Rhodes pipeline. This is all treated at the O.N. Stevens Water Treatment Plant, where it undergoes purification and filtration steps to ensure it is safe then distributed to residents, businesses, industries, municipalities and water authorities.
Breaking down drought stages and checkpoints as well as understanding what they each mean, can be a bit tricky to navigate at first.
Stage 1 of the city’s drought contingency plan is referred to as a “mild water shortage”. Key restrictions for stage 1 consist of no watering between 10am and 6pm, also irrigation or sprinkler system usage is limited to one day per week. Corpus Christi enters Stage 1 when Choke Canyon Reservoir and Lake Corpus Christi’s combined reservoir storage level is at 40% or less with target demand reduction levels at 5%.
Stage 2 of the city’s drought contingency plan is referred to as a “moderate water shortage”. Key restrictions for stage 2 consist of the same rules as stage 1 with a conservation target of 10% in water usage. Stage 2 is implemented when combined reservoir storage level is below 30% capacity.
Stage 3 is referred to as “critical water shortage” which is the drought stage Corpus Christi has been in. With combined reservoir levels at less than 20% and target demand reduction levels of 15%. Key restrictions progressively increase to a stricter standard as drought conditions worsen. Lawn watering is prohibited, all non essential water use in city facilities and parks is turned off. While stage 2 allows some lawn watering and hand watering, stage 3 bans all lawn irrigation.
Water emergency level 1 and 2 are the next steps in line with level 1’s target demand reduction level at 25% and level 2 at 50%. A level 1 water emergency will be declared if the city is within 180 days of not having the capability to meet water demand.
One of the solutions that is being discussed at the moment, is the Inner Harbor Seawater Desalination facility. It was designed to provide drought proof water supply for Corpus Christi as well as surrounding coastal bend areas which would serve customers from residential to industrial. It was originally intended to treat seawater and produce millions of gallons of pure water per day which would ensure longevity of water resilience amid water scarcity concerns within the coastal bend. A new price point was projected at the desalination plant costing approximately $978.7 million, which is a decrease from the original estimate of $1.2 billion. The Inner Harbor Desalination project is just one option out of several large-scale projects under consideration while the city is trying to diversify its options for maximizing productivity in getting back to a sustainable water supply. However, the Inner Harbor Desalination project has its pros and its cons just like any other proposal. One of the main concerns is how will the Inner Harbor Desalination plant affect aquatic life and the ecosystem of Corpus Christi and surrounding areas? Corpus Christi’s city manager, Peter Zanoni, said “from my own eyes, I can see that these plants don’t harm water bodies” at a city council water workshop on March 27, 2026.
Zanoni stated that the city of Corpus Christi is conducting a “far field study” which is expected to give more insight on how exactly the facility will affect the environment, with preliminary report results expected at the end of April 2026 and final report results expected in mid June 2026. Peter Zanoni also stated that “a lot of credibility is at stake” whilst referring to Corpus Christi Desal Partners engineers and team- suggesting that the City of Corpus Christi is relying on Corpus Christi Desal Partners to give insight on how safe and effective implementing the Inner Harbor Desalination Plant is.
Peter Zanoni: “And so we’re going to rely on him and his company to tell us once and for all. I asked for a study as the city manager, and so were going to know once and for all from a professional expert who has a network of professionals that do this type of work. A lot of credibility is at stake. And so were going to get, were going to get a good answer, were going to know if its good as were going to get a professional answer”
As reservoir levels continue to fluctuate, the city’s response will depend on both rainfall and long-term planning. For residents, understanding where the water comes from and how each stage works is becoming just as important as conserving it. What happens next will not be decided overnight, but the system already in place shows how quickly conditions can change.
