An Ambitious Reuse Plan for the South Platte Basin — Headwaters Magazine @WaterEdCO

A group called the South Platte Regional Opportunities Working Group, or SPROWG, is proposing to store 175,000 acre-feet of water in a series of reservoirs on the South Platte River, from north of Denver to the Morgan County line. The project also includes a long pipeline to pump water from the river back to the metro area to be cleaned and re-used. Graphic credit: CWCB via Aspen Journalism

From Headwaters Magazine (Nelson Harvey):

Conceptual project would capture and store flows before they cross into Nebraska.

Colorado is expected to add 3 million new residents by 2050, and many of them will likely settle along the northern Front Range. That growth will spur a massive mismatch between water supply and demand—a gap of roughly 500,000 acre-feet per year by midcentury, according to Colorado’s Water Plan. Since 2015, a group of Front Range water providers called the South Platte Regional Opportunity Working Group (SPROWG) has been looking for ways to bridge that future gap through collaborative multi-purpose water projects, without diverting more water from Colorado’s Western Slope or drying up eastern Colorado farmland in the process.

“[This is] about making our water systems as efficient as we possibly can, and then seeing how large the remaining supply gap is and what the next steps will be,” says Lisa Darling, executive director of the South Metro Water Supply Authority, a member of SPROWG, and president of Water Education Colorado’s board.

Along with South Metro, SPROWG includes representatives from Denver Water, Aurora Water, the Northern Colorado Water Conservancy District, the St. Vrain and Left Hand Water Conservancy District, the North Sterling Irrigation District and the Lower South Platte Water Conservancy District. The group is seeking to capitalize on a surplus of untapped reusable water in the lower South Platte River near the Nebraska border, which accumulates there through return flows from the Denver Metro area and farms upstream. According to the South Platte Storage Study, an effort funded by the Colorado legislature and completed in early 2018, Colorado sent an annual median volume of 293,000 acre-feet more water to Nebraska than the South Platte River Compact requires between 1996 and 2015. SPROWG aims to enable the reuse and exchange of more of that water before it leaves the state.

“The central problem is that [future] demand will largely materialize in growing communities located roughly along the north-south axis of Interstate 25, while data and modeling tell us that available water supplies in the basin generally occur much further downstream where the river traverses the plains,” says Doug Robotham, a consultant who helped initiate SPROWG and facilitates the group’s discussions.

The conceptual project that SPROWG is now pursuing would remedy that mismatch through the creation of about 175,000 acre-feet of new water storage in three locations: 50,000 acre-feet near Henderson, 100,000 acre-feet downstream near Kersey, and 25,000 acre-feet further east near Snyder. The concept could also involve the construction of a pipeline from the Snyder-area reservoir back to the South Platte River north of Denver. This would enable the storage, reuse and exchange of several types of water, including native South Platte River flows in wet years, and legally reusable water supplies. Reusable supplies include transbasin diversion water, unconnected well water, and other sources imported into the South Platte system.

SPROWG’s analysis suggests the concept would generate 54,600 acre-feet of dependable “firm yield” every year. That’s only about one-tenth of the South Platte Basin’s looming water supply gap, but Joe Frank of the Lower South Platte Water Conservancy District says the concept would have added benefits for farmers and ranchers in eastern Colorado.

“It provides a viable alternative to buy and dry that has and continues to threaten lands within our boundaries,” says Frank. The economies of many eastern Colorado towns are dependent on irrigated agriculture and will suffer if acres are removed from production by cities acquiring agricultural water to support growth, Frank says.

Much research remains before SPROWG’s concept solidifies into an actual water project. SPROWG partners recently received $155,000 in funding from the Metro and South Platte Basin roundtables, and at press time they were waiting on approval for an additional $195,000 from the Colorado Water Conservation Board’s Water Supply Reserve Account. Over the next year, they’ll use those funds, together with $120,000 of their own money, to hone in on which municipal, agricultural and recreational water users could benefit from the SPROWG concept. They’ll also study how the concept would be funded and governed, and the exact size and location of the proposed storage facilities and water reuse pipeline.

Click here to read the whole issue of Headwaters and while you are there become a member and support water education in Colorado.

@CSUtilities extends CEO contract offer to Aram Benyamin

Here’s the release from Colorado Springs Utilities:

Board extends offer for CEO

In an open session on Sept. 17, the Utilities Board unanimously voted to extend an offer to Aram Benyamin to be the next Chief Executive Officer (CEO) of Colorado Springs Utilities.

Nearly 130 candidates from across the United States submitted their resumes for consideration. In June, the Utilities Board reviewed the top candidates and determined which candidates should complete advanced screening. In July, the Board reviewed the information and selected seven candidates to proceed as semifinalists.

Over the last few weeks, the full Utilities Board conducted seven semi-finalist interviews with internal and external candidates. Deliberations on who would be moving on as finalists were concluded prior to the Aug. 22 Board meeting.

As part of the process, there were opportunities for employees and the public to meet the CEO finalists and provide feedback to the Board. The Utilities Board incorporated the feedback they received from employees and the public and considered the information as they interviewed the candidates.

Aram Benyamin, P.E.
General Manager of Energy Supply
Colorado Springs Utilities

Aram Benyamin currently serves as the General Manager of the Energy Supply Department at Colorado Springs Utilities.

Prior to Colorado Springs Utilities, Mr. Benyamin was the Senior Assistant General Manager, head of the Los Angeles Department of Water and Power’s (LADWP) power system, the nation’s largest municipal utility.

At LADWP, Mr. Benyamin was responsible for 4,000 employees with an annual budget of $3.9 billion, serving more than four million residents of Los Angeles.

LADWP’s power system spans over four states. It includes 7,327 megawatts of generation capacity, 3,507 miles of high-voltage 500, 230 and 138 kV AC transmission lines, two 900 miles of 500 kV DC lines and a 465 square mile area of overhead and underground power distribution network.

Mr. Benyamin is a Professional Engineer and has a bachelor’s of science degree in engineering from California State University, Los Angeles. He also has a master’s degree in business administration (MBA) from University of La Verne and a master’s degree in public of administration (MPA) from California State University, Northridge.

He has also earned a Certificate, Senior Executives in State and Local Government, Harvard University, Kennedy School of Government; Certificate, Executive Business Management Program, University of California Los Angeles (UCLA), Anderson School of Management; Certificate, Engineering and Technical Management, UCLA; Certificate, Business Management Program, UCLA; Certificate, Leadership for the 21st Century, UCLA; Certificate, Total Quality Management, UCLA; Certificate, Construction Management, UCLA.

Mr. Benyamin’s current and past board member and trustee affiliations include YMCA Downtown Colorado Springs Board Member, Armenian General Benevolent Union, Worldwide District Committee Board Member, Boys and Girls Scouts commissioner, troop committee member and volunteer, Trustee of Joint Safety and Training Institutes, Southern California Public Power Association board member, Large Public Power Council board member and California Municipal Utilities Association board member.

  • View Mr. Benyamin’s resume.
  • See Mr. Benyamin written responses to interview questions.
  • Read Mr. Benyamin’s video interview transcript.
  • From The Colorado Springs Independent (Pam Zubeck):

    Monday, Sept. 17, the Colorado Springs Utilities Board voted to offer the energy supply general manager, Aram Benyamin, a contract as the new CEO of the $2 billion enterprise.

    Benyamin would replace Jerry Forte, who retired in May after more than 12 years as CEO.

    He came to Utilities in 2015 from Los Angeles Department of Water and Power after he was ousted the previous year due to his close association with the electrical workers union, according to media reports. He also had supported the challenger of Eric Garcetti, who was elected as mayor.

    Benyamin tells the Independent that he will accept the offer, although details are being worked out, including the salary. Forte was paid $447,175 a year.

    Benyamin will take his cues on major policy issues from the Utilities Board but does have thoughts on power supply, water rights and other issues involving the four services offered by Utilities: water, wastewater, electricity and gas.

    He says he hopes to see more options emerge for Drake Power Plant, a downtown coal-fired plant that’s been targeted for retirement in 2035. That’s way too late, according to some residents who have pushed for an earlier decommissioning date…

    Utilities has been slower than some to embrace solar and wind, because of the price point, but Benyamin says prices are going down. “Every time we put out an RFP [request for proposals] the prices are less,” he says, adding that renewables will play a key role in replacing Drake’s generation capacity, which at present provides a quarter to a third of the city’s power.

    While sources are studied, he says the city is moving ahead with “rewiring the system” to prepare for shutting down the plant. But he predicted a new source of generation will be necessary.

    Though he acknowledged he’s not fully versed in Utilities’ water issues, he says it’s his goal to “serve the city first.”

    “Any resources we have we need to prioritize them to the need of the city today and the future growth and then decide what level of support we can give to anybody else,” he says.

    The Utilities Policy Advisory Committee earlier this year called for lowering the cost of water and wastewater service for outsiders — notably bedroom communities outside the city limits which are running lower on water or face water contamination issues.

    Benyamin also says he’s open to further studying reuse of water. “Any chance we have to recycle water or use gray water for irrigation or any other use that would take pressure off our supplies, that’s always a great idea to look into,” he says.

    From The Colorado Springs Gazette (Conrad Swanson):

    “My short-term vision is to take a look at the organization and kind of recalibrate the vision of what a public utility should be and how a public utility should fit into the vision of the city itself,” Benyamin said.

    Long-term goals include identifying what fuel changes Utilities will face and examining the water supply and transmission, he said.

    Benyamin said he wants to insert leadership that will boost revenues while maintaining competitive rates. He also foresees increasing renewable energy production and energy storage.

    “Renewables and storage are the trend of the future,” he said. “That’s where we’re going.”

    Technology for storage and renewable energy, such as wind and solar, are becoming more efficient and affordable, Benyamin said. Combining those two factors with improved distribution of electricity will enable Utilities to be more versatile, he said.

    The coal-fired Martin Drake Power Plant downtown is to be closed no later than 2035, but Benyamin said that date could be moved up significantly with more technology, storage and transmission options.

    Colorado Springs with the Front Range in background. Photo credit Wikipedia.

    @WaterEdCO “Fresh Water News’: Aurora’s recycled water plant running at full-tilt

    From Water Education Colorado (Jerd Smith):

    Aurora’s futuristic recycled water project — Prairie Waters— is running at full-tilt for the first time in its eight-year history, a move designed to make the city’s water supplies last longer in the face of severe drought conditions.

    “We’re pushing it as hard as we can,” said Greg Baker, a spokesman for Aurora Water.

    In February, as mountain snows failed to accumulate, Baker said the city began mobilizing to ramp up plant operations, knowing its reservoirs would likely not fill this summer. “We were very worried.”

    By April, Prairie Waters was running at full speed, generating 9.7 million gallons a day (MGD), up from 5.1 MGD last summer, a 90 percent increase in production.

    “We could possibly push it to 10 MGD,” said Ann Malinaro, a chemist and treatment specialist with Prairie Waters, “but we consider 9.7 MGD full capacity.”

    […]

    “Prairie Waters was huge, not just in terms of volume, but also because it’s really helped us advance as a state in accepting potable [drinkable] reused water,” Belanger said. “Historically, there has been a yuck factor. But Prairie Waters has helped folks understand how systems can be designed so they are safe and effective.” [Laura Belanger]

    Twenty-five Colorado cities, including Denver, Colorado Springs, Fort Collins and Louisville, operate recycled water facilities, according to the Colorado Department of Public Health and Environment, but that water is used primarily to water parks, golf courses and to help cool power plants, among other nonpotable, or non-drinkable, uses.

    But Aurora, faced with fast-growth and a shortage of water, realized more than a decade ago that reusing its existing supplies and treating them to drinking water standards was the only way to ensure it could provide enough water for its citizens.

    Completed in 2010, the Prairie Waters Project recaptures treated wastewater from the South Platte River and transports it back to Aurora through a series of underground wells and pipelines. As the water makes its 34-mile journey from a point near Brighton back to the metro area through subsurface sand and gravel formations, it undergoes several rounds of natural cleansing.

    Once it reaches the Prairie Waters treatment facility near Aurora Reservoir, it runs through a series of high-tech purification processes using carbon filters, UV light and chlorine, among other chemicals. Then, before it is delivered to homes, the reused water is mixed with the city’s other supplies, which derive from relatively clean mountain snowmelt that is carried down from the mountains.

    2018 #COleg recap

    From The Sterling Journal-Advocate (Marianne Goodland):

    The Mussel-free Colorado Act came from the interim water resources review committee and was signed into law by Gov. John Hickenlooper on April 23.

    Since they were first found in a lake outside of Detroit in 1988, zebra and quagga mussels have become a huge problem for waterways in the eastern half of the United States, particularly the Great Lakes.

    Sightings have been rare in Colorado but they have happened: at Lake Pueblo in 2008, at Green Mountain Reservoir in 2016 and in March outside of Grand Junction. In 2017, according to the state Division of Parks and Wildlife, 25 boats were found contaminated with mussels, up from 22 boats in 2016. Those boats had all come from other states, with Lake Powell in Arizona and Lake Havasu in California as the places where the mussels most likely came from…

    Fears that the nuisance could to do to Colorado’s water system what it’s done to systems back east prompted lawmakers to ramp up the state’s aquatic nuisance detection program, which has been underfunded for years.

    Under House Bill 1008 — the mussel-free law — beginning January 1, Colorado residents will pay $25 for an aquatic nuisance stamp for their boats in addition to the boat registration free. Non-residents will pay $50 to use their motorboats or sailboats in state waterways.

    The fee is expected to raise $2.2 million that will help Colorado Parks and Wildlife keep boat inspection sites open for longer hours and for a longer season. Doug Kreiger of CPW told the interim water committee last year that budget cutbacks have meant boaters could avoid inspections, such as putting their boats in reservoirs on private land or at the public ramps when inspectors aren’t available.

    The law also will allow the division to recoup the cost of decontaminating boats that show up with mussels attached to boat or boat motors, anchors, anchor ropes, fishing gear, and boat trailers.

    The water committee also carried two of the recycled water bills: to allow recycled water to be used for industrial hemp and for irrigating marijuana crops.

    Recycling water — the process for treating water and then reusing it — isn’t new in Colorado; it’s been a part of irrigation for agriculture for years. But it’s gaining new attention, thanks in part to the state water plan. It noted that 25 utilities, mostly on the Eastern Slope, are already treating and recycling non-potable water and would look for additional ways for using recycled water as a way of addressing Colorado’s looming water shortage, with a goal of finding 170,000 acre-feet through recycling.

    The water plan cites as an example the Colorado Springs utility, which uses recycled water for irrigation at golf courses, parks and other properties, as well as for cooling towers at local power plants. The utility reported in 2016 that reuse saves one billion gallons of drinking water every year.

    Senate Bill 38, signed into law on April 28, would add industrial hemp on the list of approved crops irrigated with recycled domestic wastewater and in accordance with existing water rights. Industrial hemp is a crop that under the bill could not be used for food production.

    Sen. Don Coram of Montrose, the bill sponsor, explained that hemp is a high-protein crop, higher than alfalfa, and that it poses no risk to cattle, for example. The bill was supported by the Colorado Water Rights Association, the Colorado Water Congress and the hemp industry.

    The bill was amended to address concerns about water quality.

    The bill allowing recycled water for irrigation of marijuana — House Bill 1053 — wasn’t as lucky and died in the Senate Finance Committee, at the request of its sponsor. The marijuana industry opposed the bill, based on concerns that the law would require cultivators to use recycled water that could contain pesticides that cannot by law used on cannabis plants.

    Would you use recycled water to flush toilets? Colorado law changed a couple of years ago to allow developers to build greywater systems in new homes, but left out existing homes and businesses.

    House Bill 1069, signed on April 30, would let businesses and multifamily residences, such as apartments, condos and townhomes, to flush toilets with recycled domestic wastewater. The state’s plumbing code is changed under the law, and toilet plumbing would have to be retrofitted to accommodate the rerouting of recycled water.

    The General Assembly also changed state law on water quality to allow recycled water to be used to irrigate food crops, but only if that water meets the water quality standards for commercial crops under the Food and Drug Administration’s Food Safety Modernization Act. That bill was signed into law on April 28.

    The law does not apply to big agriculture, according to the sponsor, Democratic Rep. Jeni Arndt of Fort Collins. She said the intention is to use recycled water to replace drinking water that is used to irrigate indoor grows;l community gardens; community-supported agriculture, usually farms of one acre or less; and other forms of urban agriculture.

    Finally, the General Assembly put another $7 million toward implementing the state water plan. Under Senate Bill 218, $3 million would go toward developing additional storage, recharging aquifers and dredging existing reservoirs to add capacity; $1 million for agricultural projects; $1 million for grants that would implement long-term strategies for conservation, land use and drought planning; $500,000 for grants on water education and $1.5 million for environmental and recreation projects. That bill was signed into law on May 30.

    On June 19, the interim water resources review committee is scheduled to meet in Denver to review a study commissioned in 2016 to look for new or enhanced water storage opportunities along the South Platte River, primarily in northeastern Colorado.

    How Water #Reuse Can Help Meet the West’s Water Needs — Water for #Colorado

    Water reuse via GlobalWarming.com.

    From Water for Colorado (Laura Belanger):

    The West faces a water supply gap, and the reasons are simple. Our quickly growing cities and towns are adding demands on our already stretched water supplies. Water reuse can help us fill the gap.

    So what is water reuse and why is it important? First, it’s important to understand the difference between the two primary types of reuse: potable and non-potable reuse. Many states in the West currently allow for non-potable – or purple pipe – reuse for things like landscape irrigation, industrial purposes, commercial laundries, and fire protection, among other things. But a majority of purple pipe reuse is for outdoor landscape irrigation which really only benefits us during irrigation months (less than half of the year). But with potable reuse – where water is treated to very high quality standards to ensure it’s safe and often blended with other supplies – that water can be used anytime, anywhere and for anything. Potable reuse helps stretch supplies and meet more demand with the same volume of water. And it doesn’t require an entirely separate set of pipes (purple) to deliver it.

    Western Resource Advocates is working with water utilities, local and state agencies, and other organizations to help increase water reuse around the West to address this growing problem. In Colorado specifically, WRA is working with a diverse group of stakeholders to help develop regulations for direct potable reuse and advance legislation to increase reuse to help the state’s water supplies. Recycled water has been used for decades in Colorado and states across the nation and has long been proven to be a safe, cost-effective tool for additional water supply. In fact, the State of the Rockies Poll found that 78% of westerners “support using our current water supply more wisely by encouraging more conservation and increasing water recycling.“

    Currently, WRA and our partners are working to advance four bills in the Colorado legislature that would allow recycled water to be used for:

  • toilet flushing
  • marijuana cultivation
  • edible crop and community garden irrigation
  • growth of industrial hemp
  • Other states, like Florida, Washington, Oregon, and Idaho, currently allow for recycled water to be used for toilet flushing and edible crop irrigation, and have successfully supplemented their water supplies this way. Colorado’s Water Plan also specifically calls for state agencies to identify how the state can foster increased reuse to help address growing demands, and these initiatives are a great step in that direction. By embracing water reuse for these applications and others we can help bolster our stretched water supplies, and work to help, shrink the gap between those supplies and the demands of our growing cities and towns. Water reuse, in concert with other water-smart tools and strategies, can help us provide for our communities while also protecting our beloved rivers and lakes, keeping them healthy and preserving the quality of life that they afford for all of us.

    How Water Reuse Can Help Meet the West’s Water Needs — @wradv

    Water reuse via GlobalWarming.com.

    From Western Resource Advocates (Laura Belanger):

    The West faces a water supply gap, and the reasons are simple. Our quickly growing cities and towns are adding demands on our already stretched water supplies. Water reuse can help us fill the gap.

    So what is water reuse and why is it important? First, it’s important to understand the difference between the two primary types of reuse: potable and non-potable reuse. Many states in the West currently allow for non-potable – or purple pipe – reuse for things like landscape irrigation, industrial purposes, commercial laundries, and fire protection, among other things. But a majority of purple pipe reuse is for outdoor landscape irrigation which really only benefits us during irrigation months (less than half of the year). But with potable reuse – where water is treated to very high quality standards to ensure it’s safe and often blended with other supplies – that water can be used anytime, anywhere and for anything. Potable reuse helps stretch supplies and meet more demand with the same volume of water. And it doesn’t require an entirely separate set of pipes (purple) to deliver it.

    Western Resource Advocates is working with water utilities, local and state agencies, and other organizations to help increase water reuse around the West to address this growing problem. In Colorado specifically, WRA is working with a diverse group of stakeholders to help develop regulations for direct potable reuse and advance legislation to increase reuse to help the state’s water supplies. Recycled water has been used for decades in Colorado and states across the nation and has long been proven to be a safe, cost-effective tool for additional water supply. In fact, the State of the Rockies Poll found that 78% of westerners “support using our current water supply more wisely by encouraging more conservation and increasing water recycling.“

    Currently, WRA and our partners are working to advance four bills in the Colorado legislature that would allow recycled water to be used for:

  • toilet flushing,
  • marijuana cultivation,
  • edible crop and community garden irrigation, and
  • growth of industrial hemp.
  • Other states, like Florida, Washington, Oregon, and Idaho, currently allow for recycled water to be used for toilet flushing and edible crop irrigation, and have successfully supplemented their water supplies this way. Colorado’s Water Plan also specifically calls for state agencies to identify how the state can foster increased reuse to help address growing demands, and these initiatives are a great step in that direction. By embracing water reuse for these applications and others we can help bolster our stretched water supplies, and work to help shrink the gap between those supplies and the demands of our growing cities and towns. Water reuse, in concert with other water-smart tools and strategies, can help us provide for our communities while also protecting our beloved rivers and lakes, keeping them healthy and preserving the quality of life that they afford for all of us.

    Reuse demonstration project at @DenverWater’s recycling plant

    Denver Water’s Recycled Water Treatment Plant and Distribution System opened in 2004

    From The Denver Business Journal (Cathy Proctor):

    Colorado’s next big source of drinking water may be recycling and reusing what customers flush down the drain.

    That’s the idea behind a cutting-edge demonstration project set up at Denver Water’s recycling plant on York Street in north Denver.

    A group of engineering companies and water policy groups set up the project, which has been running since January, to show that metro-area water that normally would be treated and sent down the South Platte River could be captured and cleaned to the point where it’s safe to drink…

    Some of Colorado’s water providers have recycled water for reuse — mostly for irrigation purposes — for more than 50 years, said Laura Belanger, a water engineer with Boulder-based Western Resource Advocates, a policy group.

    But the demonstration project takes the recycling to the next step — treating water via a five-step process to a level where it’s safe to drink.

    The equipment, which can treat up to 15 gallons per minute, mimics nature’s water-cleaning ability but does it much, much faster. A gallon can pass through the system in less than 30 minutes, said Austa Parker, a water reuse technologist with Carollo.

    Water that’s passed through the Metro Waste Water treatment plant and destined for the South Platte River is passed through the system.

    The system involves using ozone, filters and microfilters that are 100 narrower than a human hair. Activated charcoal and ultraviolet light also are part of the process at the demonstration plant…

    The demonstration system is unique in that it doesn’t produce an extremely salty brine that requires its own disposal process, she said.

    Interest in recycling water and using it inside homes is growing across Colorado, Belanger said.

    The Colorado Water Plan, adopted in 2015, called for recycling more water.

    And a group of utilities, state health officials and water recycling enthusiasts are exploring issues around using and drinking recycled water with an eye toward crafting new state-level regulations, Belanger said.

    The cost of building and equipping such a treatment plant depends on many variables, including the quality of the source water and the type of treatment it needs, she said.

    But a recycling plant is cost-competitive when compared to the costs of obtaining and transporting new water supplies, she said.

    From Business Wire:

    Xylem Inc. (NYSE: XYL) has been engaged as a water technology solutions provider to the PureWater Colorado Demonstration Project, which aims to demonstrate direct potable reuse (DPR) as a safe, reliable and sustainable drinking water source. Denver Water has partnered with Carollo Engineers, WateReuse Colorado (WRCO) and Xylem on the project which is located at the Denver Water Recycling Plant and will run during the month of April this year. Some of the water produced will be used to brew beer to raise awareness among the general public about this water purification process.

    Water reuse is part of Colorado’s Water Plan to reduce the amount of water diverted from rivers and streams, creating a sustainable, efficient way to extend the state’s water supplies.

    Steve Green, Business Development Manager, Xylem said, “We are very excited to be part of this forward-looking, important project that aims to promote a sustainable, reliable and safe drinking water treatment process. It is crucial that we implement sustainable solutions, like water reuse, to meet future water needs. We hope that this demonstration will help to raise awareness and understanding among the local population and community leaders about how DPR can help to provide for their water needs now and in the future.”

    A range of Xylem’s solutions including a Wedeco MiPRO advanced oxidation process (AOP) pilot system and a Leopold granulated activated carbon (GAC) filter pilot will be used in the project which features a unique treatment train that avoids the use of reverse-osmosis (RO) membranes and their associated high capital and operating costs as well as brine disposal.

    John Rehring, Vice President, Carollo Engineers said, “As national leaders in water reuse, we were happy to partner with Xylem to demonstrate the use of advanced technologies – an extension of our efforts to develop a regulatory framework, and public outreach activities specific to Colorado.”

    Xylem is a frontrunner in the field of water reuse technology, providing advanced solutions and expertise to reuse applications across the US, as well as globally. In California for example, Xylem’s Wedeco MiPRO advanced oxidation processes (AOP) is operating at Los Angeles Sanitation’s Terminal Island Water Reclamation Plant. The customized solution is the first greenfield AOP design using ultraviolet light with chlorine – a significant innovation to make water reuse more sustainable and cost-effective.

    Last year Xylem signed a multi-year commitment (2017-2019) to support Water Environment Research Foundation (WE&RF) research into water reuse, building on a previous three-year research partnership and solidifying Xylem’s commitment to advancing the use of recycled water. Internationally, Xylem works together with the IVL Swedish Environmental Research Institute and the Singapore Public Utilities Board (PUB) to progress water reuse.