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Toilet to tap: El Paso is about to embark on a whole new way to save its limited water supply

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Thursday, April 10, 2025

Subscribe to The Y’all — a weekly dispatch about the people, places and policies defining Texas, produced by Texas Tribune journalists living in communities across the state. 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. Inside a primary clarifier, resembling petri-dish tanks, heavy solids and grease sink to the bottom and machines skim off particles at the top at the Roberto Bustamante Wastewater Treatment Plant in El Paso. Credit: Justin Hamel for The Texas Tribune Left: Sewage sludge from the Roberto Bustamante Wastewater Treatment Plant is dewatered before being trucked to and disposed of in open fields. Right: Treated water leaves the plant to be reused for irrigation in El Paso. Credit: Justin Hamel for The Texas Tribune 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. Related Story March 13, 2025 “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. Latest in the series: Running Out: Texas’ Water Crisis Loading content … 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. The Rio Grande supplies about 40% of El Paso’s water supply. Experts worry that freshwater supply will only last a few more decades at current usage rates. Credit: Justin Hamel for The Texas Tribune 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.” El Paso became a leader out of need 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. Jennifer Barr, TecH20 Center’s water conservation manager, says the center hosts educational field trips for students where they learn about how to reduce their water consumption. Credit: Justin Hamel for The Texas Tribune Left: An exhibit depicting the water reclamation in El Paso at the TecH20 conference and learning center. Right: Painted Dunes Desert Golf Course receives water treated by the Fred Hervey Water Reclamation Plant. Credit: Justin Hamel for The Texas Tribune 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. What can the state learn from these water leaders? 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 Pure Water Center broke ground earlier this year and may be the nation's first direct potable use system or "toilet-to-tap" facility. Credit: Justin Hamel for The Texas Tribune 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. Gilbert Trejo, vice president of operations and technical services at El Paso Water, stands in front of 72 RO membranes at the Kay Bailey Desalination Plant in El Paso. The membranes clean salty water and make it drinkable. Credit: Justin Hamel for The Texas Tribune Left: El Paso Water's mascot, Willie the Waterdrop, stands behind a stack of applications offering cash to residents who replace their toilets with high efficiency models. Right: Jessiel Acosta tests the water hardness of the raw water feeding into the Kay Bailey Hutchison Desalination Plant. Credit: Justin Hamel for The Texas Tribune “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.

El Paso’s dry climate — it rains just 9 inches annually — is one of the reasons the city has taken water management so seriously.

Subscribe to The Y’all — a weekly dispatch about the people, places and policies defining Texas, produced by Texas Tribune journalists living in communities across the state.


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.

Inside a primary clarifier, resembling petri-dish tanks, heavy solids and grease sink to the bottom and machines skim off particles at the top at the Roberto Bustamante Wastewater Treatment Plant in El Paso. Credit: Justin Hamel for The Texas Tribune
Left: Sewage sludge from the Roberto Bustamante Wastewater Treatment Plant is dewatered before being trucked to and disposed of in open fields. Right: Treated water leaves the plant to be reused for irrigation in El Paso. Credit: Justin Hamel for The Texas Tribune

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.

Related Story

“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.

Latest in the series: Running Out: Texas’ Water Crisis

Loading content …

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.

The Rio Grande supplies about 40% of El Paso’s water supply. Experts worry that freshwater supply will only last a few more decades at current usage rates. Credit: Justin Hamel for The Texas Tribune

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.”

El Paso became a leader out of need

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.

Jennifer Barr, TecH20 Center’s water conservation manager, says the center hosts educational field trips for students where they learn about how to reduce their water consumption. Credit: Justin Hamel for The Texas Tribune
Left: An exhibit depicting the water reclamation in El Paso at the TecH20 conference and learning center. Right: Painted Dunes Desert Golf Course receives water treated by the Fred Hervey Water Reclamation Plant. Credit: Justin Hamel for The Texas Tribune

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.

What can the state learn from these water leaders?

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 Pure Water Center broke ground earlier this year and may be the nation's first direct potable use system or "toilet-to-tap" facility. Credit: Justin Hamel for The Texas Tribune

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.

Gilbert Trejo, vice president of operations and technical services at El Paso Water, stands in front of 72 RO membranes at the Kay Bailey Desalination Plant in El Paso. The membranes clean salty water and make it drinkable. Credit: Justin Hamel for The Texas Tribune
Left: El Paso Water's mascot, Willie the Waterdrop, stands behind a stack of applications offering cash to residents who replace their toilets with high efficiency models. Right: Jessiel Acosta tests the water hardness of the raw water feeding into the Kay Bailey Hutchison Desalination Plant. Credit: Justin Hamel for The Texas Tribune

“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.

Read the full story here.
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Toxic Pfas above proposed safety limits in almost all English waters tested

Exclusive: 110 of 117 bodies of water tested by Environment Agency would fail standards, with levels in fish 322 times the planned limitNearly all rivers, lakes and ponds in England tested for a range of Pfas, known as “forever chemicals”, exceed proposed new safety limits and 85% contain levels at least five times higher, analysis of official data reveals.Out of 117 water bodies tested by the Environment Agency for multiple types of Pfas, 110 would fail the safety standard, according to analysis by Wildlife and Countryside Link and the Rivers Trust. Continue reading...

Nearly all rivers, lakes and ponds in England tested for a range of Pfas, known as “forever chemicals”, exceed proposed new safety limits and 85% contain levels at least five times higher, analysis of official data reveals.Out of 117 water bodies tested by the Environment Agency for multiple types of Pfas, 110 would fail the safety standard, according to analysis by Wildlife and Countryside Link and the Rivers Trust.They also found levels of Pfos – a banned carcinogenic Pfas – in fish were on average 322 times higher than planned limits for wildlife. If just one portion of such freshwater fish was eaten each month this would exceed the safe threshold of Pfos for people to consume over a year, according to the NGOs.Pfas, or per- and polyfluoroalkyl substances, are a group of thousands of human-made chemicals used in industrial processes and products such as non-stick pans, clothing and firefighting foams. They do not break down in the environment and some are linked to diseases, including cancers and hormone disruption.Pfas pollution is widespread, prompting the EU to propose a new water quality standard that limits the combined toxicity of 24 Pfas to 4.4 nanograms per litre of water, calculated as PFOA-equivalents – a method that weights each substance according to its toxicity relative to PFOA, a particularly hazardous and well-studied carcinogen that is now banned.The EU is also planning to regulate about 10,000 Pfas as one class as there are too many to assess on a case-by-case basis and because none break down in the environment, but the UK has no plans to follow suit.Last week, environment groups, led by the Marine Conservation Society, wrote to ministers, urging a ban on all Pfas in consumer products and a timeline for phasing them out in all other uses. Now, public health and nature groups have joined forces to propose urgent measures to rein in pollution.“Scientists continue to identify Pfas as one of the biggest threats of our time, yet the UK is falling behind other countries in restricting them,” said Hannah Evans of the environmental charity Fidra. “Every day of inaction locks in decades of pollution and environmental harm … we’re asking the UK government to turn off the tap of these persistent forever chemicals.”They say the UK should align with the EU’s group-based Pfas restrictions and ban the substances in food packaging, clothing, cosmetics, toys and firefighting foams, following examples from Denmark, France and the EU. They want better monitoring, tougher water and soil standards and to make polluters cover the cost of Pfas clean-up.Emma Adler, the director of impact at Wildlife and Countryside Link, said: “Pfas are linked to an explosion of impacts for wildlife and public health, from cancers to immune issues. These new figures underline just how widespread Pfas pollution is and that Pfas regulation must be a much clearer priority in government missions to clean up UK rivers and improve the nation’s health.”Thalie Martini, the chief executive officer at Breast Cancer UK, said: “Evidence points to the potential for some Pfas to be related to health issues, including increasing breast cancer risk … millions of families affected by this disease will want the government to do everything they can to deliver tougher Pfas rules to protect our health.”Last year, 59 Pfas experts urged the government to follow the science and regulate all Pfas as a single class, warning their extreme persistence – regardless of toxicity – posed a serious environmental threat.skip past newsletter promotionThe planet's most important stories. Get all the week's environment news - the good, the bad and the essentialPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotion“Countries like France and Denmark, the EU as a whole and many US states have taken strong action against Pfas pollution,” said Dr Francesca Ginley from the Marine Conservation Society. “The time is now for the UK to take a stand and show the leadership we need on Pfas pollution from source to sea.”Dr Shubhi Sharma of the charity Chem Trust said: “Too often with hazardous chemicals the world has ignored early warnings of harm and learned lessons far too late. Costs to tackle Pfas in the environment and address health impacts have a multi-billion pound economic price tag … the government must not delay.”An Environment Agency spokesperson said the science on Pfas was moving quickly and that it was running a multi-year programme to improve understanding of Pfas pollution sources in England. They added: “We are screening sites to identify potential sources of Pfas pollution and prioritise further investigations, whilst assessing how additional control measures could reduce the risks of Pfas in the environment.”A spokesperson for the Department for Environment, Food and Rural Affairs said: “The government is committed to protecting human health and the environment from the risks posed by Pfas. That’s why we are working at pace together with regulators to assess levels of Pfas in the environment, their sources and potential risks to inform our approach to policy and regulation.”

Breaking Down the Force of Water in the Texas Floods

Flash floods last week in Texas caused the Guadalupe River to rise dramatically, reaching three stories high in just two hours

Over just two hours, the Guadalupe River at Comfort, Texas, rose from hip-height to three stories tall, sending water weighing as much as the Empire State building downstream roughly every minute it remained at its crest.Comfort offers a good lens to consider the terrible force of a flash flood’s wall of water because it’s downstream of where the river’s rain-engorged branches met. The crest was among the highest ever recorded at the spot — flash flooding that appears so fast it can “warp our brains,” said James Doss-Gollin, assistant professor of civil and environmental engineering at Rice University.The Texas flood smashed through buildings, carried away cars and ripped sturdy trees out by the roots, dropping the debris in twisted piles when the water finally ebbed. It killed more than 100 people, prompted scores of rescues and left dozens of others missing. The deaths were concentrated upriver in Kerr County, an area that includes Camp Mystic, the devastated girls' camp, where the water hit early and with little notice.Water is capable of such destruction because it is heavy and can move fast. Just one cubic foot of water — imagine a box a bit larger than the size of a basketball — weighs about 62 pounds (28 kilograms). When the river rose to its peak at Comfort, 177,000 cubic feet — or 11 million pounds (5 million kilograms) of water — flowed by every second.“When you have that little lead time ... that means you can’t wait until the water level starts to rise,” Doss-Gollin said. “You need to take proactive measures to get people to safety.” Water as heavy as a jumbo jet A small amount of water — less than many might think — can sweep away people, cars and homes. Six inches (15.2 centimeters) is enough to knock people off their feet. A couple of feet of fast-moving water can take away an SUV or truck, and even less can move cars.“Suppose you are in a normal car, a normal sedan, and a semitrailer comes and pushes you at the back of the car. That’s the kind of force you’re talking about,” said Venkataraman Lakshmi, a University of Virginia professor and president of the hydrology section of the American Geophysical Union.And at Comfort, it took just over 15 minutes for so much water to arrive that not only could it float away a large pickup truck, but structures were in danger — water as heavy as a jumbo jet moved by every second.At that point, “We are past vehicles, homes and things can start being affected,” said Daniel Henz, flood warning program manager at the flood control district of Maricopa County, Arizona, an area that gets dangerous scary flash floods.The water not only pushes objects but floats them, and that can actually be scarier. The feeling of being pushed is felt immediately, letting a person know they are in danger. Upward force may not be felt until it is overwhelming, according to Upmanu Lall, a water expert at Arizona State University and Columbia University.“The buoyancy happens — it’s like a yes, no situation. If the water reaches a certain depth and it has some velocity, you’re going to get knocked off (your feet) and floating simultaneously,” he said. The mechanics of a flash flood The landscape created the conditions for what some witnesses described as a fast-moving wall of water. Lots of limestone covered by a thin layer of soil in hilly country meant that when rain fell, it ran quickly downhill with little of it absorbed by the ground, according to S. Jeffress Williams, senior scientist emeritus with the U.S. Geological Survey.A flash flood generally starts with an initial lead wave and then builds as rain rushes over the landscape and into the river basin. It may rise quickly, but the water still takes some time to converge. The water crumpled cars into piles, twisted steel and knocked trees down as if they were strands of grass. Images captured the chaos and randomness of the water’s violence.And then, not as fast as it rose, but still quickly, the river receded.Five hours after its crest at Comfort, it had already dropped 10 feet (3 meters), revealing its damage in retreat. A couple of days after it started to rise, a person could stand with their head above the river again.“Everything just can happen, very, very quickly,” Henz said.Associated Press writer Seth Borenstein in Washington contributed.The Associated Press receives support from the Walton Family Foundation for coverage of water and environmental policy. The AP is solely responsible for all content. For all of AP’s environmental coverage, visit https://apnews.com/hub/climate-and-environmentCopyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See - June 2025

South West Water allowed to invest £24m rather than pay £19m fine

Campaigners say Ofwat ‘subservient to industry and its rampaging pursuit of profit’ after illegal sewage dischargesSouth West Water has agreed to pay a £24m penalty for illegal sewage discharges into the environment from its treatment works.The regulator for the water and wastewater sector in England and Wales, Ofwat, says the company, which has 1.8 million customers in Cornwall, Devon, the Isles of Scilly and parts of Dorset and Somerset, is being penalised for dumping sewage in breach of its legal permit conditions. Continue reading...

South West Water has agreed to pay a £24m penalty for illegal sewage discharges into the environment from its treatment works.The regulator for the water and wastewater sector in England and Wales, Ofwat, says the company, which has 1.8 million customers in Cornwall, Devon, the Isles of Scilly and parts of Dorset and Somerset, is being sanctioned for dumping sewage in breach of its legal permit conditions.But there was anger over revelations on Thursday that the regulator had not imposed a direct fine on the company.South West Water put forward the suggestion that it would invest £20m to reduce sewage discharges at key storm overflows, spend £2m to tackle sewer misuse and misconnections, and another £2m to support local environment groups. This was accepted by Ofwat rather than imposing a fine of £19m.But Rob Abrams, the campaigns manager at Surfers Against Sewage, said allowing water companies to choose their own penalty was farcical.He said the situation “illustrates a water industry model that’s broken beyond repair, with government and regulators subservient to industry and its rampaging pursuit of profit, at any cost”.Ofwat said it had chosen this route rather than imposing a fine because it was satisfied that the company would carry out the work required to bring its infrastructure back into legal operation.“We have … concluded that it would be appropriate to accept the undertakings in lieu of the financial penalty we would otherwise impose in this case (£19m, 6.5% of its relevant turnover),” Ofwat said.The regulator carried out a two-year investigation into the company that found it had failed to upgrade its treatment works to prevent sewage discharges into the environment, failed to properly deal with the content of its sewers and failed to put in the resources to monitor its treatment works properly.The penalty is the latest in an ongoing investigation by Ofwat into several water companies into widespread illegal sewage dumping across the network from thousands of treatment plants.Penalties totalling more than £160m have already been imposed against Yorkshire Water, Thames Water and Northumbrian Water for widespread illegal sewage dumping from their treatment works.Lynn Parker, the senior director for enforcement at Ofwat, said the regulator had secured the £24m package and a commitment to put things right from the company.skip past newsletter promotionSign up to Business TodayGet set for the working day – we'll point you to all the business news and analysis you need every morningPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionBut Abrams said it amounted to a cynical PR exercise and an abdication of responsibility by Ofwat.“There is no transparency about how the money will be spent or whether it’s even enough,” he said.“Of the £4m pledged for environmental initiatives and local groups, we’ve been given no clarity on who will benefit or why.”The public and other stakeholders can make representations about the size of the penalty before it is finalised.

Oregon groundwater protection bill passes despite criticism that it’s too weak

Gov. Tina Kotek backed the bill to modernize Oregon’s failed groundwater pollution laws.

Legislators have just passed a groundwater protection bill that many nonprofit groups working on groundwater contamination said was too watered down to make a real difference. Gov. Tina Kotek backed the bill to modernize Oregon’s failed groundwater pollution laws. Kotek has been active in trying to speed up response to the three-decades-old groundwater contamination crisis in the Lower Umatilla Basin, where many residents with nitrate-contaminated domestic wells must rely on bottled drinking water. Until 2022, many people in the region had no idea they had been drinking contaminated water for years. Some still don’t know it because the state has yet to test all the affected wells. A state analysis also has shown that nitrate pollution in the area has worsened significantly over the past decade. Though the state has been testing wells and conducting public awareness campaigns, critics have accused the Oregon Department of Environmental Quality, Department of Agriculture and Water Resources Department of not doing enough to crack down on the pollution sources. Much of the nitrate contamination comes from fertilizer used by large farms, animal manure from local industrial dairies and feedlots and wastewater from food processing plants that are constantly applied to farm fields. Early versions of the bill laid out specific actions that state agencies would have to take once groundwater pollution had reached the level of a serious public health threat. But many of those actions were stripped out of the bill, leading environmental and social justice nonprofits to pull their support because they deemed the bill too weak to make a difference. Oregon Rural Action, the eastern Oregon nonprofit that has been instrumental in testing domestic wells and pushing the state to do more testing and to limit nitrate pollution, said industry groups representing polluters put pressure on the governor’s office, leading to major changes in the bill’s language. “The version passed on Friday no longer includes the tools, resources, and Legislative directives needed for agencies to exercise their authority to protect Oregon’s groundwater and enforce the law,”the group’s executive director, Kristin Anderson Ostrom, said in a statement. The governor’s office declined to comment.Kotek in January issued an emergency order allowing the Port of Morrow to again violate its water pollution permit and over-apply nitrogen contaminated water onto farmland. The port, which handles billions of gallons of nitrogen-rich water every year, said that it would have to pause operations and lay off workers if not for the emergency permit. In addition to the Lower Umatilla Basin, Oregon has designated two other areas – in northern Malheur County and the southern Willamette Valley – where elevated nitrate concentrations in groundwater pose a human health risk. Each one has an action plan to reduce nitrate concentrations in groundwater. Research has linked high nitrate consumption over long periods to stomach, bladder and intestinal cancers, miscarriages and thyroid issues. It is especially dangerous to infants who can quickly develop “blue baby syndrome,” a fatal illness.— Gosia Wozniacka covers environmental justice, climate change, the clean energy transition and other environmental issues. Reach her at gwozniacka@oregonian.com or 971-421-3154.

A rare glimpse inside the mountain tunnel that carries water to Southern California

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries Colorado River water to Southern California.

Thousands of feet below the snowy summit of Mt. San Jacinto, a formidable feat of engineering and grit makes life as we know it in Southern California possible. The 13-mile-long San Jacinto Tunnel was bored through the mountain in the 1930s by a crew of about 1,200 men who worked day and night for six years, blasting rock and digging with machinery. Completed in 1939, the tunnel was a cornerstone in the construction of the 242-mile Colorado River Aqueduct. It enabled the delivery of as much as 1 billion gallons of water per day.The tunnel is usually off-limits when it is filled and coursing with a massive stream of Colorado River water. But recently, while it was shut down for annual maintenance, the Metropolitan Water District of Southern California opened the west end of the passage to give The Times and others a rare look inside. “It’s an engineering marvel,” said John Bednarski, an assistant general manager of MWD. “It’s pretty awe-inspiring.” The 16-foot-diameter San Jacinto Tunnel runs 13 miles through the mountain. While shut down for maintenance, the tunnel has a constant stream of water entering from the mountain. A group visits the west end of the San Jacinto Tunnel, where the mouth of the water tunnel enters a chamber. He wore a hard hat as he led a group to the gaping, horseshoe-shaped mouth of the tunnel. The passage’s concrete arch faded in the distance to pitch black.The tunnel wasn’t entirely empty. The sound of rushing water echoed from the walls as an ankle-deep stream flowed from the portal and cascaded into a churning pool beneath metal gates. Many in the tour group wore rubber boots as they stood on moist concrete in a chamber faintly lit by filtered sunlight, peering into the dark tunnel. This constant flow comes as groundwater seeps and gushes from springs that run through the heart of the mountain. In places deep in the tunnel, water shoots so forcefully from the floor or the wall that workers have affectionately named these soaking obstacles “the fire hose” and “the car wash.”Standing by the flowing stream, Bednarski called it “leakage water from the mountain itself.”Mt. San Jacinto rises 10,834 feet above sea level, making it the second-highest peak in Southern California after 11,503-foot Mt. San Gorgonio.As the tunnel passes beneath San Jacinto’s flank, as much as 2,500 feet of solid rock lies overhead, pierced only by two vertical ventilation shafts. Snow covers Mt. San Jacinto, as seen from Whitewater, in March. At the base of the mountain, the 13-mile San Jacinto Tunnel starts its journey. The tunnel transports Colorado River water to Southern California’s cities. During maintenance, workers roll through on a tractor equipped with a frame bearing metal bristles that scrape the tunnel walls, cleaning off algae and any growth of invasive mussels. Workers also inspect the tunnel by passing through on an open trailer, scanning for any cracks that require repairs.“It’s like a Disneyland ride,” said Bryan Raymond, an MWD conveyance team manager. “You’re sitting on this trailer, and there’s a bunch of other people on it too, and you’re just cruising through looking at the walls.” Aside from the spraying and trickling water, employee Michael Volpone said he has also heard faint creaking.“If you sit still and listen, you can kind of hear the earth move,” he said. “It’s a little eerie.”Standing at the mouth of the tunnel, the constant babble of cascading water dominates the senses. The air is moist but not musty. Put a hand to the clear flowing water, and it feels warm enough for a swim. On the concrete walls are stained lines that extend into the darkness, marking where the water often reaches when the aqueduct is running full. Many who have worked on the aqueduct say they are impressed by the system’s design and how engineers and workers built such a monumental system with the basic tools and technology available during the Great Depression.Pipelines and tunnelsThe search for a route to bring Colorado River water across the desert to Los Angeles began with the signing of a 1922 agreement that divided water among seven states. After the passage of a $2-million bond measure by Los Angeles voters in 1925, hundreds of surveyors fanned out across the largely roadless Mojave and Sonoran deserts to take measurements and study potential routes.The surveyors traveled mostly on horseback and on foot as they mapped the rugged terrain, enduring grueling days in desert camps where the heat sometimes topped 120 degrees.Planners studied and debated more than 100 potential paths before settling on one in 1931. The route began near Parker, Ariz., and took a curving path through desert valleys, around obstacles and, where there was no better option, through mountains.In one official report, a manager wrote that “to bore straight through the mountains is very expensive and to pump over them is likewise costly.” He said the planners carefully weighed these factors as they decided on a solution that would deliver water at the lowest cost. VIDEO | 02:45 A visit to the giant tunnel that brings Colorado River water to Southern California Share via Those in charge of the Metropolitan Water District, which had been created in 1928 to lead the effort, were focused on delivering water to 13 participating cities, including Los Angeles, Burbank and Anaheim. William Mulholland, Los Angeles’ chief water engineer, had led an early scouting party to map possible routes from the Colorado River to Southern California’s cities in 1923, a decade after he celebrated the completion of the 233-mile aqueduct from the Owens Valley to Los Angeles with the triumphant words, “There it is. Take it.”The aqueduct’s design matched the audaciousness of the giant dams the federal government was starting to build along the Colorado — Hoover Dam (originally called Boulder Dam) and Parker Dam, which formed the reservoir where the aqueduct would begin its journey.Five pumping plants would be built to lift water more than 1,600 feet along the route across the desert. Between those points, water would run by gravity through open canals, buried pipelines and 29 separate tunnels stretching 92 miles — the longest of which was a series of nine tunnels running 33.7 miles through hills bordering the Coachella Valley.To make it possible, voters in the district’s 13 cities overwhelmingly approved a $220-million bond in 1931, the equivalent of a $4.5-billion investment today, which enabled the hiring of 35,000 workers. Crews set up camps, excavated canals and began to blast open shafts through the desert’s rocky spines to make way for water.In 1933, workers started tearing into the San Jacinto Mountains at several locations, from the east and the west, as well as excavating shafts from above. Black-and-white photographs and films showed miners in hard hats and soiled uniforms as they stood smoking cigarettes, climbing into open rail cars and running machinery that scooped and loaded piles of rocks.Crews on another hulking piece of equipment, called a jumbo, used compressed-air drills to bore dozens of holes, which were packed with blasting power and detonated to pierce the rock. (Courtesy of Metropolitan Water District of Southern California) The work progressed slowly, growing complicated when the miners struck underground streams, which sent water gushing in.According to a 1991 history of the MWD titled “A Water Odyssey,” one flood in 1934 disabled two of three pumps that had been brought in to clear the tunnel. In another sudden flood, an engineer recalled that “the water came in with a big, mad rush and filled the shaft to the top. Miners scrambled up the 800-foot ladder to the surface, and the last man out made it with water swirling around his waist.”Death and delaysAccording to the MWD’s records, 13 workers died during the tunnel’s construction, including men who were struck by falling rocks, run over by equipment or electrocuted with a wire on one of the mining trolleys that rolled on railroad tracks. The Metropolitan Water District had originally hired Wenzel & Henoch Construction Co. to build the tunnel. But after less than two years, only about two miles of the tunnel had been excavated, and the contractor was fired by MWD general manager Frank Elwin “F.E.” Weymouth, who assigned the district’s engineers and workers to complete the project.Construction was delayed again in 1937 when workers went on strike for six weeks. But in 1939, the last wall of rock tumbled down, uniting the east and west tunnels, and the tunnel was finished. John Bednarski, assistant general manager of the Metropolitan Water District of Southern California, stands in a water tunnel near the end point of the larger San Jacinto Tunnel, which carries Colorado River water. The total cost was $23.5 million. But there also were other costs. As the construction work drained water, many nearby springs used by the Native Soboba people stopped flowing. The drying of springs and creeks left the tribe’s members without water and starved their farms, which led to decades of litigation by the Soboba Band of Luiseño Indians and eventually a legal settlement in 2008 that resolved the tribe’s water rights claims.The ‘magic touch’ of waterBy the time the tunnel was completed, the Metropolitan Water District had released a 20-minute film that was shown in movie theaters and schools celebrating its conquest of the Colorado River and the desert. It called Mt. San Jacinto the “tallest and most forbidding barrier.”In a rich baritone, the narrator declared Southern California “a new empire made possible by the magic touch of water.” “Water required to support this growth and wealth could not be obtained from the local rainfall in this land of sunshine,” the narrator said as the camera showed newly built homes and streets filled with cars and buses. “The people therefore realized that a new and dependable water supply must be provided, and this new water supply has been found on the lofty western slopes of the Rocky Mountains, a wonderland of beauty, clad by nature in a white mantle of snow.”Water began to flow through the aqueduct in 1939 as the pumping plants were tested. At the Julian Hinds Pumping Plant, near the aqueduct’s halfway point, water was lifted 441 feet, surging through three pipelines up a desert mountain. March 2012 image of the 10-foot-diameter delivery lines carrying water 441 feet uphill from the Julian Hinds Pumping Plant. (Los Angeles Times) From there, the water flowed by gravity, moving at 3-6 mph as it traveled through pipelines, siphons and tunnels. It entered the San Jacinto Tunnel in Cabazon, passed under the mountain and emerged near the city of San Jacinto, then continued in pipelines to Lake Mathews reservoir in Riverside County. In 1941, Colorado River water started flowing to Pasadena, Beverly Hills, Compton and other cities. Within six years, another pipeline was built to transport water from the aqueduct south to San Diego.The influx of water fueled Southern California’s rapid growth during and after World War II.Over decades, the dams and increased diversions also took an environmental toll, drying up much of the once-vast wetlands in Mexico’s Colorado River Delta. John Bednarski, assistant general manager of the Metropolitan Water District, walks in a water tunnel near the end point of the larger San Jacinto Tunnel. An impressive designToday, 19 million people depend on water delivered by the MWD, which also imports supplies from Northern California through the aqueducts and pipelines of the State Water Project.In recent decades, the agency has continued boring tunnels where needed to move water. A $1.2-billion, 44-mile-long conveyance system called the Inland Feeder, completed in 2009, involved boring eight miles of tunnels through the San Bernardino Mountains and another 7.9-mile tunnel under the Badlands in Riverside County.The system enabled the district to increase its capacity and store more water during wet years in Diamond Valley Lake, Southern California’s largest reservoir, which can hold about 260 billion gallons of water. “Sometimes tunneling is actually the most effective way to get from point A to point B,” said Deven Upadhyay, the MWD’s general manager.Speaking hypothetically, Upadhyay said, if engineers had another shot at designing and building the aqueduct now using modern technology, it’s hard to say if they would end up choosing the same route through Mt. San Jacinto or a different route around it. But the focus on minimizing cost might yield a similar route, he said.“Even to this day, it’s a pretty impressive design,” Upadhyay said.When people drive past on the I-10 in Cabazon, few realize that a key piece of infrastructure lies hidden where the desert meets the base of the mountain. At the tunnel’s exit point near San Jacinto, the only visible signs of the infrastructure are several concrete structures resembling bunkers. When the aqueduct is running, those who enter the facility will hear the rumble of rushing water. The tunnel’s west end was opened to a group of visitors in March, when the district’s managers held an event to name the tunnel in honor of Randy Record, who served on the MWD board for two decades and was chair from 2014 to 2018. Speaking to an audience, Upadhyay reflected on the struggles the region now faces as the Colorado River is sapped by drought and global warming, and he drew a parallel to the challenges the tunnel’s builders overcame in the 1930s. “They found a path,” Upadhyay said. “This incredible engineering feat. And it required strength, courage and really an innovative spirit.” “When we now think about the challenges that we face today, dealing with wild swings in climate and the potential reductions that we might face, sharing dwindling supplies on our river systems with the growing Southwest, it’s going to require the same thing — strength, courage and a spirit of innovation,” he said. A steep steel staircase gives access to a water tunnel near the end point of the larger San Jacinto Tunnel, which carries Colorado River water to Southern California.

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