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Yahoo
13-04-2025
- Climate
- Yahoo
To avoid water crisis, Texas may bet big on desalination. Here's how it works in El Paso.
This article is part of Running Out, an occasional series about Texas' water crisis. EL PASO — The wind swept through El Paso one day in March, lifting a fine layer of dust that settled onto windshields, clothes and skin. The air was thick with haze from a dust storm. This border city, perched on the edge of the Chihuahuan Desert, receives on average less than 9 inches of rain each year. Water in the city of 679,000 people is a challenge. Inside El Paso's Kay Bailey Hutchison Desalination Plant, Hector Sepúlveda, the plant's superintendent, walks through rows of towering steel tubes as a loud hum vibrates through the air. This machinery is essential to providing thousands in the city with clean water. 'This is a desert community,' Sepúlveda said. 'So the water utilities have to always think ahead and be very resourceful and very smart and find resources to take the water that we do have here and provide for a desert community.' Sepúlveda says the city's dry climate, compounded by dwindling ground and surface water supplies and climate change has made innovation essential. A key piece of that strategy is desalination — the process of removing salt and other minerals from seawater or salty groundwater so people can drink it. When it opened in 2007, El Paso's desalination plant was the largest inland desalination facility in the world. It was built through a partnership between El Paso Water and Fort Bliss, one of the nation's largest military bases, when water shortages threatened the base's operations. Today, at max capacity the plant can supply up to 27.5 million gallons per day — helping stretch the city's supply by making use of the region's abundance of brackish groundwater, salty groundwater with salinity levels higher than freshwater, but lower than seawater. The city wants to expand the plant's capacity to 33.5 million gallons per day by 2028. El Pasoans used about 105 million gallons per day last year. As Texas faces twin pressures of population growth and prolonged drought, lawmakers are looking to desalination as a way forward. The Texas Legislature took a major step in 2023, creating the New Water Supply for Texas Fund, to support desalination projects — including both brackish and seawater. This legislative session, lawmakers are pushing to accelerate that effort with a bill by state Sen. Charles Perry, a Lubbock Republican, that could dedicate millions for new water projects, including desalination. Senate Bill 7 cleared the upper chamber earlier this month and is now awaiting a House committee's consideration. 'We've developed all the cheap water, and all the low-hanging fruit has been obtained. There is no more of it, and it's depleting what's left. We're going into the second phase of water development through brackish marine, brackish produced water and brackish aquifers,' Perry said on the Senate floor before his colleagues gave the legislation unanimous approval. Sixty municipal water desalination facilities are already online, according to the Texas Water Development Board, the state agency that helps manage and finance water supply projects. Of those, 43 desalinate brackish groundwater. El Paso's is the largest. As of December 2024, the agency had designated 31 brackish groundwater sites as production zones, meaning they have moderate to high availability of brackish groundwater to treat. The board's 2022 state water plan proposes implementing an additional 37 brackish groundwater desalination projects in South Texas cities like McAllen, Mission, San Benito; and West Texas towns like Abilene and Midland. The plan states that if all recommended strategies are used, groundwater desalination could make up about 2.1% of the state's projected water needs by producing 157,000 acre-feet per year by 2070 — enough to support 942,000 Texans for one year. Still, desalination isn't without tradeoffs. The technology takes a lot of energy, and construction costs can be steep. There are also several factors to consider that affect the final price tag: How deep the water lies, how salty it is, how far it needs to travel, and how to dispose of the leftover salty waste. The water board estimates treating brackish groundwater can run anywhere from $357 to $782 per acre-foot, while seawater desalination ranges from $800 to $1,400. Lawmakers say water funding at a state-level is critical to help communities shoulder the upfront costs of these alternative water supplies. Sepúlveda, who has spent more than 30 years with El Paso Water, says the process at the desalination plant begins with brackish groundwater drawn from 15 wells near the El Paso International Airport. The salty water is transported to the plant where it is first filtered through strainers to remove sand particles. Then it is transported through cartridge filters. This process is similar to how household water filters work, but far more efficient. The cartridge filters trap fine sediments smaller than a strand of hair, further filtering the water before it reaches the heart of the system: reverse osmosis, often referred to as RO membranes. Sepúlveda, who wears a blue construction hat and highlighter yellow vest, stands amid a room full of long rows of stacked steel tubes, or RO membrane units. Here, brackish groundwater gets turned into fresh, drinkable water. It's pumped through these tubes — each with 72 vessels — at extremely high pressure, leaving behind salt and bacteria. 'We're separating the undesirable stuff from the potable water,' he said, as he opened a faucet and sipped the water. 'At the end you end up with safe drinking water. The process is just amazing.' Once cleaned, the water is divided between El Paso Water customers and Fort Bliss. Sepúlveda said they will soon expand the plant to produce 33.5 million gallons per day by adding a sixth row of RO membranes. The brine, or concentrated salty water left over from the process, is pumped 22 miles to deep well injection sites. The desal plant can separate up to 3 million gallons of brine a day. At the site, the concentrate is sent 3,500 feet underground into a fractured rock formation. While brackish groundwater desalination has proven to be a viable solution for inland communities like El Paso, environmentalists are raising concerns about the potential consequences of scaling up the water strategy. Seawater desalination is gaining attention as Gulf Coast cities like Corpus Christi start developing their own seawater desalination facility. For seawater desalination, Shane Walker, professor and director of a water research center at Texas Tech University, says the main concern is removing the excess salt. While most of the salinity comes from dissolved minerals that aren't harmful, Walker says, high concentrations — think of over-salted French fries — can harm marine life and disrupt coastal ecosystems. Seawater is much saltier than brackish water and salt levels vary widely depending on the source. In seawater desalination, the brine byproduct — which can be twice as salty as seawater — is often discharged back into the ocean. If not properly managed, this can increase salinity in bays and estuaries, threatening species like oysters, crabs and shrimp that are critical to local fisheries and ecosystems. Myron Hess, an environmental consultant for the nonprofit National Wildlife Federation, said that when plants take in water it could potentially suck in marine creatures with the ocean water. 'As you're diverting particularly massive amounts of water, you can be pulling in lots of organisms,' Hess said. For inland facilities like the Kay Bailey Hutchison plant, the environmental concerns are different. They don't kill marine life, but disposal is still a concern. In El Paso, Art Ruiz, chief plant manager for El Paso Water and the former superintendent of the utility's desalination plant, calls this disposal 'chemistry salts' and says that disposal is handled through deep well injection into an isolated part of the aquifer. Ruiz said El Paso is blessed with a geological formation that has a natural fault that prevents the concentrate from migrating and contaminating the freshwater supply. In regions where this is not feasible, evaporation ponds are used, but they require large amounts of land and careful management to prevent environmental hazards. 'Deep well injection is a common method used for larger desalination facilities, but the geology has to be right,' Walker said. 'You have to ensure that the injection site is isolated and won't contaminate freshwater aquifers.' Another concern raised by water experts is how Texas manages brackish groundwater and whether the state is doing enough to protect nearby freshwater sources. Senate Bill 2658 proposes to exempt certain brackish groundwater wells located within state-designated production zones from needing a permit. Experts say the move would bypass a permitting process in the state's water code that was specifically designed to safeguard freshwater aquifers. The central worry is that brackish and fresh groundwater are often hydrologically connected. While brackish groundwater can be an important part of the state's water portfolio, Vanessa Puig-Williams, a water expert with the Environmental Defense Fund, says there's a real risk that pumping brackish water could unintentionally start drawing in and depleting nearby fresh water if oversight is not required from local groundwater conservation districts. Experts also caution that the production zones identified by the water board weren't designed to guide site-specific decisions, such as how much a well can safely pump or whether it could affect nearby freshwater supplies. Hess, consulting for the National Wildlife Federation, authored a paper on the impacts of desalination, including the price tag. Constructing a facility is costly, as is the energy it takes to run it. El Paso's desalination facility cost $98.3 million, including the production and injection wells construction, $26 million of which it received in federal funding. The technology to clean the water is energy intensive. Desalinating water in El Paso costs about $500 per acre-foot of water — 46% more than treating surface water from a river. Seawater facilities require even more energy, which adds to the costs in producing or cleaning the water. TWDB estimates those range from $800 to $1,400 per acre-foot. Texas has no operating seawater desalination plants for municipal use, but the state's environmental agency, Texas Commission on Environmental Quality, has authorized permits for two marine desalination facilities and has four pending applications for seawater desalination facilities, three in Corpus Christi and one in Port Isabel. 'The first seawater plant in Texas is going to be expensive,' Walker said. 'The first time somebody does something, it's going to cost way more than the other ones that come along behind it, because we're having to figure out all the processes and procedures to do it the first time.' Back at the Kay Bailey Hutchison plant in El Paso, Sepúlveda, the plant's superintendent, walks into a lab opened to students and professors from the University of Texas at El Paso, New Mexico State University, and Rice University to test new technologies to help refine the desalination processes or extend the lifespan of RO membranes. Sepúlveda said water utility employees have learned a lot since 2007 when the plant first opened. RO membranes, used to clean the salty water, cost anywhere from $600 to $800. El Paso uses 360 RO membranes to run its plant. To extend the life from five to 12 years, utility employees figured out a system by checking salinity levels before extracting from a certain well. 'When we first bring water in from the brackish wells, we know how salty each well is, so we try to bring in the wells that are less salty to not put the membranes under such stress,' he said. 'It almost doubled the life of the membrane.' He added that this technique is also helping plant operators reduce energy consumption. Plant operators have adjusted salinity levels by blending the brackish groundwater with less salty water, which helps prevent pipe corrosion and clogging. Their pipes are also now winterized. After the 2011 freeze, El Paso upgraded insulation and installed heat tape to protect equipment. As Texas moves forward with more desalination projects, Sepúlveda said the lessons from El Paso will be critical as more plants go online. 'You always have to be forward-thinking. Always have to be innovative,' he said, as the machines buzzed in the background. 'You always have to be on top of the latest technological improvements to be able to extract water from whatever scant resources you have.' Disclosure: Environmental Defense Fund, Rice University, Texas Tech University and University of Texas at El Paso have been financial supporters of The Texas Tribune, a nonprofit, nonpartisan news organization that is funded in part by donations from members, foundations and corporate sponsors. Financial supporters play no role in the Tribune's journalism. This article originally appeared in The Texas Tribune at The Texas Tribune is a member-supported, nonpartisan newsroom informing and engaging Texans on state politics and policy. Learn more at Store, harvest, fix: How Texas can save its water supply This is what the state decided on a desal permit requested by the city of Corpus Christi This article originally appeared on Corpus Christi Caller Times: Texas may bet big on desalination. Here's how it works in El Paso.
Yahoo
11-04-2025
- Climate
- Yahoo
To avoid a water crisis, Texas may bet big on desalination. Here's how it works in El Paso.
This article is part of Running Out, an occasional series about Texas' water crisis. Read more stories about the threats facing Texas' water supply here. EL PASO — The wind swept through El Paso one day in March, lifting a fine layer of dust that settled onto windshields, clothes and skin. The air was thick with haze from a dust storm. This border city, perched on the edge of the Chihuahuan Desert, receives on average less than 9 inches of rain each year. Water in the city of 679,000 people is a challenge. Inside El Paso's Kay Bailey Hutchison Desalination Plant, Hector Sepúlveda, the plant's superintendent, walks through rows of towering steel tubes as a loud hum vibrates through the air. This machinery is essential to providing thousands in the city with clean water. 'This is a desert community,' Sepúlveda said. 'So the water utilities have to always think ahead and be very resourceful and very smart and find resources to take the water that we do have here and provide for a desert community.' Sepúlveda says the city's dry climate, compounded by dwindling ground and surface water supplies and climate change has made innovation essential. A key piece of that strategy is desalination — the process of removing salt and other minerals from seawater or salty groundwater so people can drink it. When it opened in 2007, El Paso's desalination plant was the largest inland desalination facility in the world. It was built through a partnership between El Paso Water and Fort Bliss, one of the nation's largest military bases, when water shortages threatened the base's operations. Today, at max capacity the plant can supply up to 27.5 million gallons per day — helping stretch the city's supply by making use of the region's abundance of brackish groundwater, salty groundwater with salinity levels higher than freshwater, but lower than seawater. The city wants to expand the plant's capacity to 33.5 million gallons per day by 2028. El Pasoans used about 105 million gallons per day last year. As Texas faces twin pressures of population growth and prolonged drought, lawmakers are looking to desalination as a way forward. The Texas Legislature took a major step in 2023, creating the New Water Supply for Texas Fund, to support desalination projects — including both brackish and seawater. This legislative session, lawmakers are pushing to accelerate that effort with a bill by state Sen. Charles Perry, a Lubbock Republican, that could dedicate millions for new water projects, including desalination. Senate Bill 7 cleared the upper chamber earlier this month and is now awaiting a House committee's consideration. 'We've developed all the cheap water, and all the low-hanging fruit has been obtained. There is no more of it, and it's depleting what's left. We're going into the second phase of water development through brackish marine, brackish produced water and brackish aquifers,' Perry said on the Senate floor before his colleagues gave the legislation unanimous approval. Sixty municipal water desalination facilities are already online, according to the Texas Water Development Board, the state agency that helps manage and finance water supply projects. Of those, 43 desalinate brackish groundwater. El Paso's is the largest. As of December 2024, the agency had designated 31 brackish groundwater sites as production zones, meaning they have moderate to high availability of brackish groundwater to treat. The board's 2022 state water plan proposes implementing an additional 37 brackish groundwater desalination projects in South Texas cities like McAllen, Mission, San Benito; and West Texas towns like Abilene and Midland. The plan states that if all recommended strategies are used, groundwater desalination could make up about 2.1% of the state's projected water needs by producing 157,000 acre-feet per year by 2070 — enough to support 942,000 Texans for one year. Still, desalination isn't without tradeoffs. The technology takes a lot of energy, and construction costs can be steep. There are also several factors to consider that affect the final price tag: How deep the water lies, how salty it is, how far it needs to travel, and how to dispose of the leftover salty waste. The water board estimates treating brackish groundwater can run anywhere from $357 to $782 per acre-foot, while seawater desalination ranges from $800 to $1,400. Lawmakers say water funding at a state-level is critical to help communities shoulder the upfront costs of these alternative water supplies. Sepúlveda, who has spent more than 30 years with El Paso Water, says the process at the desalination plant begins with brackish groundwater drawn from 15 wells near the El Paso International Airport. The salty water is transported to the plant where it is first filtered through strainers to remove sand particles. Then it is transported through cartridge filters. This process is similar to how household water filters work, but far more efficient. The cartridge filters trap fine sediments smaller than a strand of hair, further filtering the water before it reaches the heart of the system: reverse osmosis, often referred to as RO membranes. Sepúlveda, who wears a blue construction hat and highlighter yellow vest, stands amid a room full of long rows of stacked steel tubes, or RO membrane units. Here, brackish groundwater gets turned into fresh, drinkable water. It's pumped through these tubes — each with 72 vessels — at extremely high pressure, leaving behind salt and bacteria. 'We're separating the undesirable stuff from the potable water,' he said, as he opened a faucet and sipped the water. 'At the end you end up with safe drinking water. The process is just amazing.' Once cleaned, the water is divided between El Paso Water customers and Fort Bliss. Sepúlveda said they will soon expand the plant to produce 33.5 million gallons per day by adding a sixth row of RO membranes. The brine, or concentrated salty water left over from the process, is pumped 22 miles to deep well injection sites. The desal plant can separate up to 3 million gallons of brine a day. At the site, the concentrate is sent 3,500 feet underground into a fractured rock formation. While brackish groundwater desalination has proven to be a viable solution for inland communities like El Paso, environmentalists are raising concerns about the potential consequences of scaling up the water strategy. Seawater desalination is gaining attention as Gulf Coast cities like Corpus Christi start developing their own seawater desalination facility. For seawater desalination, Shane Walker, professor and director of a water research center at Texas Tech University, says the main concern is removing the excess salt. While most of the salinity comes from dissolved minerals that aren't harmful, Walker says, high concentrations — think of over-salted French fries — can harm marine life and disrupt coastal ecosystems. Seawater is much saltier than brackish water and salt levels vary widely depending on the source. In seawater desalination, the brine byproduct — which can be twice as salty as seawater — is often discharged back into the ocean. If not properly managed, this can increase salinity in bays and estuaries, threatening species like oysters, crabs and shrimp that are critical to local fisheries and ecosystems. Myron Hess, an environmental consultant for the nonprofit National Wildlife Federation, said that when plants take in water it could potentially suck in marine creatures with the ocean water. 'As you're diverting particularly massive amounts of water, you can be pulling in lots of organisms,' Hess said. For inland facilities like the Kay Bailey Hutchison plant, the environmental concerns are different. They don't kill marine life, but disposal is still a concern. In El Paso, Art Ruiz, chief plant manager for El Paso Water and the former superintendent of the utility's desalination plant, calls this disposal 'chemistry salts' and says that disposal is handled through deep well injection into an isolated part of the aquifer. Ruiz said El Paso is blessed with a geological formation that has a natural fault that prevents the concentrate from migrating and contaminating the freshwater supply. In regions where this is not feasible, evaporation ponds are used, but they require large amounts of land and careful management to prevent environmental hazards. 'Deep well injection is a common method used for larger desalination facilities, but the geology has to be right,' Walker said. 'You have to ensure that the injection site is isolated and won't contaminate freshwater aquifers.' Another concern raised by water experts is how Texas manages brackish groundwater and whether the state is doing enough to protect nearby freshwater sources. Senate Bill 2658 proposes to exempt certain brackish groundwater wells located within state-designated production zones from needing a permit. Experts say the move would bypass a permitting process in the state's water code that was specifically designed to safeguard freshwater aquifers. The central worry is that brackish and fresh groundwater are often hydrologically connected. While brackish groundwater can be an important part of the state's water portfolio, Vanessa Puig-Williams, a water expert with the Environmental Defense Fund, says there's a real risk that pumping brackish water could unintentionally start drawing in and depleting nearby fresh water if oversight is not required from local groundwater conservation districts. Experts also caution that the production zones identified by the water board weren't designed to guide site-specific decisions, such as how much a well can safely pump or whether it could affect nearby freshwater supplies. Hess, consulting for the National Wildlife Federation, authored a paper on the impacts of desalination, including the price tag. Constructing a facility is costly, as is the energy it takes to run it. El Paso's desalination facility cost $98.3 million, including the production and injection wells construction, $26 million of which it received in federal funding. The technology to clean the water is energy intensive. Desalinating water in El Paso costs about $500 per acre-foot of water — 46% more than treating surface water from a river. Seawater facilities require even more energy, which adds to the costs in producing or cleaning the water. TWDB estimates those range from $800 to $1,400 per acre-foot. Texas has no operating seawater desalination plants for municipal use, but the state's environmental agency, Texas Commission on Environmental Quality, has authorized permits for two marine desalination facilities and has four pending applications for seawater desalination facilities, three in Corpus Christi and one in Port Isabel. 'The first seawater plant in Texas is going to be expensive,' Walker said. 'The first time somebody does something, it's going to cost way more than the other ones that come along behind it, because we're having to figure out all the processes and procedures to do it the first time.' Back at the Kay Bailey Hutchison plant in El Paso, Sepúlveda, the plant's superintendent, walks into a lab opened to students and professors from the University of Texas at El Paso, New Mexico State University, and Rice University to test new technologies to help refine the desalination processes or extend the lifespan of RO membranes. Sepúlveda said water utility employees have learned a lot since 2007 when the plant first opened. RO membranes, used to clean the salty water, cost anywhere from $600 to $800. El Paso uses 360 RO membranes to run its plant. To extend the life from five to 12 years, utility employees figured out a system by checking salinity levels before extracting from a certain well. 'When we first bring water in from the brackish wells, we know how salty each well is, so we try to bring in the wells that are less salty to not put the membranes under such stress,' he said. 'It almost doubled the life of the membrane.' He added that this technique is also helping plant operators reduce energy consumption. Plant operators have adjusted salinity levels by blending the brackish groundwater with less salty water, which helps prevent pipe corrosion and clogging. Their pipes are also now winterized. After the 2011 freeze, El Paso upgraded insulation and installed heat tape to protect equipment. As Texas moves forward with more desalination projects, Sepúlveda said the lessons from El Paso will be critical as more plants go online. 'You always have to be forward-thinking. Always have to be innovative,' he said, as the machines buzzed in the background. 'You always have to be on top of the latest technological improvements to be able to extract water from whatever scant resources you have.' Disclosure: Environmental Defense Fund, Rice University, Texas Tech University and University of Texas at El Paso have been financial supporters of The Texas Tribune, a nonprofit, nonpartisan news organization that is funded in part by donations from members, foundations and corporate sponsors. Financial supporters play no role in the Tribune's journalism. Find a complete list of them here. Tickets are on sale now for the 15th annual Texas Tribune Festival, Texas' breakout ideas and politics event happening Nov. 13–15 in downtown Austin. Get tickets before May 1 and save big! TribFest 2025 is presented by JPMorganChase.
Yahoo
10-04-2025
- General
- Yahoo
Toilet to tap: El Paso is about to embark on a whole new way to save its limited water supply
This article is part of Running Out, an occasional series about Texas' water crisis. Read more stories about the threats facing Texas' water supply here. EL PASO — It all starts with a flush of a toilet. Wastewater travels underground through this arid city's pipes to a wastewater treatment facility where it goes through multiple treatment steps to filter out contaminants. The next step is purification. Membranes filter out contaminants at high pressure. Ultraviolet light and chlorine disinfect the water. A dash of minerals is added. The end result? Clean drinking water. Behind this effort is El Paso Water, the utility that serves 220,000 homes, businesses and government agencies in far West Texas. The Pure Water Center, which is expected to be fully operational in 2028, is the agency's latest attempt to use every drop of water and make it drinkable — a solution the city sees as essential for its future. El Paso has become a national leader in water innovation — pioneering brackish groundwater desalination, wastewater reuse, and aggressive conservation efforts, according to water experts. Now, it's taking another step forward. This advanced water purification system will deliver 10 million gallons daily in a city that used roughly 105 million gallons per day last year. Some say it will be the first direct potable reuse, or 'toilet-to-tap' facility in the country. Other cities have reused wastewater for drinking, including Big Springs. However, they send it to a reservoir or river where it blends with surface water and then treat it again before it reaches taps. El Paso's facility will be the first to send purified water straight into the distribution system — pipe to pipe. Gilbert Trejo, vice president of operations and technical services at El Paso Water, said the utility gained public support and eased the 'ick factor' by educating residents on how the project maximizes the city's existing water supply. [Want to understand Texas' water crisis? Start with the guide to water terms.] 'A lot of cities pay money to bring water to their community through reservoirs or investing in water importation. We owe it to our customers to develop our current water,' Trejo said. As Texas faces mounting water challenges, with lawmakers searching for solutions to an impending water crisis — including transporting water from water-rich areas to dry ones through pipelines — some water experts say El Paso's approach could serve as a blueprint for other cities, especially those in West Texas, where communities get little to no rain and have limited water resources to tap into. El Paso, a city of nearly 679,000 people, occupies a unique geographic and hydrological position. Nestled in the far western corner of Texas, it sits at the headwaters of the Rio Grande within the state, where the river first enters Texas after flowing through Colorado and New Mexico. Just across the U.S. border lies Ciudad Juárez, Mexico, a city of about 1.5 million, and to the northwest the state of New Mexico. El Paso's water challenges are deeply interconnected with its neighbors, making water management a complex balancing act between three governments and multiple agencies. Like much of the state, El Paso relies on two main water sources: groundwater from its aquifers and surface water. The city's two underground aquifers, the Hueco Bolson and Mesilla Bolson supply about 55% of the city's water supply. While the Rio Grande, fed by snowmelt from Colorado and stored in New Mexico's Elephant Butte Reservoir before being released downstream to farmers and cities, supplies about 40% (in a year without drought). Both supplies are shrinking and becoming increasingly unreliable. Experts warn that this freshwater supply may only last a few more decades at current usage rates. Elephant Butte is at historic lows, sometimes holding just 6% of its capacity. The city's surface water allotment, which last year was from March to October, is predicted to dwindle to about eight weeks this year. This has city leaders juggling as they determine how much water to suck out of its aquifers. While some border towns are just now beginning to face severe water constraints, El Paso has been grappling with that for decades. Unlike other parts of Texas, where massive reservoirs were built after the devastating drought of the 1950s to store rainwater for dry years, El Paso's dry climate — where annual rainfall averages less than 9 inches — reservoirs have never been a viable option for El Paso. Shane Walker, director of the Water and the Environment Research Center at Texas Tech University said El Paso has become one of the most progressive water utilities in the country. 'They're always thinking ahead. They're thinking 50 years or even 100 years down the road,' Walker said. 'There are so many other water utilities that benefit from El Paso Water leadership because they're willing to to spend the extra work to figure things out the first time.' Inside the utility's water center, or TecH2O, there's a timeline of the city's water history. A black and white photo from 1892 shows the city's first water supply plant — a small building and water pipe bursting with water flowing into a canal. In the early 1900s, the city relied almost entirely on groundwater from the Hueco and Mesilla Bolsons. As the population grew, city leaders recognized that groundwater alone wouldn't be enough. In the 1920s, the Rio Grande Project was developed to manage and distribute river water each year for irrigation. Again, there was still not enough. El Paso's pioneering efforts in water reuse began in the 1960s, when the city started using treated wastewater for irrigation. By the 1980s, the Fred Hervey Water Reclamation Plant was treating wastewater to drinking water standards using ozone disinfection — one of the earliest examples of advanced water reclamation in the country. That treated wastewater was used to replenish the aquifer. (Today it's sold to El Paso Electric Company for cooling towers, and used to water a golf course, parks and a cemetery in the city.) In the 1990s, El Paso expanded its recycled water program with a purple pipe system that delivered treated wastewater for irrigation and industrial use. Within that same decade, the city also launched conservation rebate and incentive programs, including a toilet rebate program that offered a $50 rebate per toilet, up to two toilets per household, for customers who purchase water-efficient toilets that use 1.28 gallons per flush, as opposed to older toilets that use as much as six gallons per flush. 'This time was a massive change in the way people thought about water and used water,' said Jennifer Barr, the utility's water conservation manager. As the city's water challenges intensified, El Paso continued to diversify its water portfolio. In 2007, it opened the Kay Bailey Hutchison Desalination Plant, a large inland desalination facility capable of producing at max capacity 27.5 million gallons of fresh water daily from brackish groundwater. The city has also embraced aquifer recharge, storing treated water underground for future use. It also reuses treated wastewater for irrigation or to replenish and maintain the Rio Bosque Wetlands, a 372-acre nature preserve located near the U.S.-Mexico border along the Rio Grande. The city has also secured additional water rights from nearby Dell City. However, treating and transporting the water 90 miles to the city will be expensive. The water from the city would need to be desalinated. Since the 1990s, the utility has delivered more than 180,000 acre-feet of recycled water for irrigation and industrial use, helping to reduce the amount of groundwater pumped from aquifers. That's enough to supply water to 1 million Texans for a year. Recycled water — 80,000 acre feet — has also been used to recharge the Hueco Bolson Aquifer. Meanwhile, the city's conservation programs have cut water use by 40% since the 1970s. Without these efforts, the utility estimates it would need to produce an additional 35,000 acre-feet of water each year to meet current demand. Although the city has a drought contingency plan in place to manage water shortages, it hasn't implemented mandatory water restrictions since 2003 — when a severe river drought forced residents to limit outdoor watering to once a week. Generations of El Pasoans have developed what Trejo, with the water utility, calls a 'high water IQ,' shaped by constant drought and the unpredictable Rio Grande. Many grew up with the utility's smiling mascot, Willie the Waterdrop, which some residents remember from when they were young. 'The generation that grew up having to be very water conscious are now the adults in the room,' Trejo said, which he sees as an opportunity. This long-standing awareness helped El Paso gain public acceptance for its new toilet-to-tap project. More than a decade ago, El Paso Water launched an outreach campaign, training employees to deliver a clear, informative pitch. They put together a 30-minute presentation that walked residents through the city's history of water reuse, explained why the next step was necessary, and broke down the advanced treatment process. Over the course of a year, the utility visited 30 community organizations, including neighborhood associations, rotary clubs, and news media outlets. The discussions weren't one-on-one but held in group settings, where residents could ask questions and voice concerns. The timing helped. The region was just coming off the severe 2013 drought when El Paso had only six weeks of surface water left and had to ask residents to cut back. That fresh memory underscored the need to prepare for the future, according to the utility's spokesperson. The utility's message was simple: 'toilet-to-tap' was a logical next step. By the time the project moved forward, the groundwork had already been laid for community buy-in. An initial survey in 2013 showed 84% of residents approved the concept — proof, Trejo says, that years of public education paid off. While 'toilet-to-tap' may sound unappealing, utility experts emphasize that advanced treatment removes pharmaceuticals, forever chemicals and other contaminants, with multiple safeguards built in. The water from the resident's sink, shower or toilet is so thoroughly purified that minerals are added back for taste. The state's environmental regulator, the Texas Commission on Environmental Quality, authorized El Paso Water to begin construction of the advanced purification facility in October 2024. The utility broke ground earlier this year. As water supplies dwindle nationwide, other cities are watching. Two Arizona cities are already exploring similar systems. 'When you're the first one to do something novel and unique, it's a pain in the butt,' Robert Mace, executive director of the Meadows Center for Water and the Environment at Texas State University, said. 'But once that first entity goes through and figures it all out, it becomes easier for everyone else.' El Paso isn't the first Texas city to attempt direct potable reuse. Big Spring in West Texas became the first in the U.S. to treat wastewater for drinking in 2013, blending the purified water with raw water before sending it to a treatment plant. Wichita Falls implemented a temporary system during a severe drought in 2014. Several other Texas cities, including San Marcos, Buda, and Marble Falls, are looking to implement direct reuse projects as part of their water supply planning for the future, according to Mace. Trejo says this approach offers a smarter alternative to expensive new reservoirs or water pipelines. 'Everything is about recycling — except water? If we're investing in desalination, why not reuse what we already have?' he said. At a state level, Trejo said he is disappointed that water recycling is not more part of the water strategy discussions at the Capitol. Lawmakers are expected to pledge billions of dollars to save the state's water supply. Most of the conversation has been around what water experts call 'new water supply.' That includes desalination or the process of removing salt from seawater or brackish groundwater to make the water drinkable. Another strategy: constructing pipelines to transport water from the water-rich regions of Texas to arid, drought-stricken areas. Some worry that other water strategies, like what El Paso is doing, will get left out of the funding. 'Communities will need to have funding,' Trejo said. 'If the state is not going to include water recycling in the discussion, it will affect us greatly.' The U.S. Bureau of Reclamation awarded El Paso $3.5 million in 2019 for the facility's design. It later committed an additional $20 million in 2022 to support construction. The total project cost is currently estimated at $295 million. The utility says it continues to pursue additional state and federal funding. According to recommendations in the state water plan, Texas could rely on direct potable reuse for 62,000 acre-feet per year by 2070 — enough to supply 372,000 people annually. The money is important. But it won't solve every crisis. El Paso has approached water management with preparation rather than panic. That steady, forward-looking mindset has helped build the trust with the public needed to take bold steps driven by vision, not desperation. Trejo's advice to other utilities: Start preparing now. Disclosure: El Paso Electric Company and Texas Tech University have been financial supporters of The Texas Tribune, a nonprofit, nonpartisan news organization that is funded in part by donations from members, foundations and corporate sponsors. Financial supporters play no role in the Tribune's journalism. Find a complete list of them here. Tickets are on sale now for the 15th annual Texas Tribune Festival, Texas' breakout ideas and politics event happening Nov. 13–15 in downtown Austin. Get tickets before May 1 and save big! TribFest 2025 is presented by JPMorganChase.
Yahoo
03-03-2025
- Business
- Yahoo
El Paso Water begins construction on Pure Water Center in Texas, US
El Paso Water (EPWater), a municipal utility, has initiated construction on the Pure Water Center, previously called the Advanced Water Purification Facility, in Texas, US. The project is aimed at providing 'sustainable, high-quality' drinking water for the community in El Paso. The ground-breaking ceremony, attended by local, state, and federal leaders, also served as the platform to unveil the facility's new name. EPWater president and CEO John Balliew said: "After years of planning, design and thousands of water-quality tests, we are excited to begin construction on the Pure Water Center. "This is the next step in El Paso's long history of water reuse, and we hope it will serve as a model for other communities facing water-related challenges." EPWater has been working with the Texas Commission on Environmental Quality (TCEQ) for over a decade to ensure the water produced will meet all state and federal safe drinking water standards. TCEQ granted final design approval late last year, paving the way for construction to commence. The Roberto Bustamante Wastewater Treatment Plant will provide treated water for the facility. The treated water will then undergo a purification process involving several steps, including membrane filtration, reverse osmosis, UV light with advanced oxidation, granular activated carbon filtration, and chlorine disinfection, to surpass drinking water quality standards. US-based Carollo Engineers has designed the Pure Water Center. The construction will soon begin with the PCL/Sundt joint venture. Once completed, the facility will supply an additional ten million gallons of drinking water a day to the residents of El Paso. The Pure Water Center will not only be a hub for water purification but also an educational resource. A visitor centre is planned to provide insights into water sources, supplies, environmental stewardship, and advanced processes for water treatment. In 2019, the US Bureau of Reclamation provided $3.5m for the facility's design and committed another $20m in 2022 for construction. With a total estimated project cost of $295m, EPWater is actively seeking further state and federal funding. The construction of the Pure Water Center is expected to be completed by 2028. In January this year, PCL Construction opened a Manufacturing Center of Excellence, focusing on increased investment in reshoring production for the US and Canada. "El Paso Water begins construction on Pure Water Center in Texas, US" was originally created and published by World Construction Network, a GlobalData owned brand. The information on this site has been included in good faith for general informational purposes only. It is not intended to amount to advice on which you should rely, and we give no representation, warranty or guarantee, whether express or implied as to its accuracy or completeness. You must obtain professional or specialist advice before taking, or refraining from, any action on the basis of the content on our site.
Yahoo
03-03-2025
- Climate
- Yahoo
Arizona's drinking water is about to change for the better
Climate patterns across the Southwest are trending toward longer and hotter seasons with less snowpack to the north. The result is less runoff to support the Colorado River, which supplies about 36% of Arizona's water. Arizona has the second largest allocation of Colorado River water, but it receives the lowest priority for this allocation. That means we stand to lose the most if allocations are further reduced. Groundwater can temporarily offset shortages, but it must be managed carefully for long-term reliance. Many rural areas of the state are seeing steep declines in aquifer water levels. However, thanks to conservation measures and active management of groundwater resources, Arizona's water use has declined since the 1950s despite our population's growth. We've also acted to reduce the impacts of drought, but we need every available tool to ensure our long-term water security. The Arizona Department of Environmental Quality could earn approval this week for rules to implement Advanced Water Purification (AWP), marking a new era for water reliability in our arid state. AWP presents an opportunity to create a new, safe and reliable source of drinking water to help meet the needs of Arizona residents and businesses. The new rules create a voluntary program for water agencies of all sizes to increase local water supplies and rely less on imported water from the Colorado River and local groundwater. In fact, several Arizona cities are well underway with plans for AWP. Scottsdale has been operating an AWP demonstration facility since 1998 and obtained the first permit in the state for small-scale demonstration of AWP for consumption as drinking water. The city of Phoenix is constructing one of several planned projects with the rehabilitation of its Cave Creek Water Reclamation Plant, which will feature a full-scale AWP facility. And Tucson is in the planning phases for their program. The proven technology takes recycled water, which is already clean enough to use in the environment for irrigation, and sends it through a high-pressure, multi-barrier filtration system that purifies water to a level that meets and exceeds state and federal drinking water standards. This purified water is so clean that it can be added to a community's water supply after rigorous monitoring and testing. Arizona is not alone in this its pursuit of AWP. Communities across the country have implemented similar rules, including Texas, Colorado, California and Florida. Opinion: How we know recycled water is safe to drink El Paso Water recently broke ground on its Pure Water Center that will eventually produce 10 million gallons per day of purified water. The city of Aurora, Colo., has been operating its purified water system for more than a decade, and Castle Rock, Colo., operates a facility that it hopes will provide all of their water by 2065. Los Angeles is constructing a water recycling facility in the San Fernando Valley that will produce drinking water for about 250,000 people. And Florida's Clay County is operating a demonstration facility to showcase the technology. Reusing wastewater in Arizona for beneficial uses is not new. Arizona has been practicing water reuse since 1926 when the first wastewater treatment plant, built specifically for reuse, was constructed at Grand Canyon Village. Now, we use recycled water to cool the nation's largest nuclear power plant, replenish our aquifers, keep dozens of golf courses green, create public open spaces and wildlife habitat with wetlands, and supply one of the world's largest fountains. Decades of research, water quality monitoring, practical application of water treatment technologies and specialized training and certification for water facility operators have paved the way for AWP to provide our state with a high-quality and renewable source of water. Arizona's new rules for its use protect public health and the environment, and it creates new opportunities for water supply resilience. We are eager to see them move forward. Erin Young is president of WaterReuse Arizona, a water recycling trade association. Rob McCandless is a past president of the association. Reach them at eyoung@ and This article originally appeared on Arizona Republic: Arizona's water supply is about to get a lot more reliable | Opinion
