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Get the Facts: How much water do West Des Moines data centers actually use?

Get the Facts: How much water do West Des Moines data centers actually use?
BUT THAT’S STILL DOWN FROM MONDAY. vlog IS LOOKING INTO WHAT’S CAUSING MORE NITRATES IN OUR WATER AND HOW MUCH SOME COMPANIES ARE PULLING FROM THE WATER SYSTEM. WE’RE GOING TO START WITH AFFILIATE JACOBSON, WHO JOINS US FROM A DATA CENTER IN WEST DES MOINES TONIGHT. OPHELIA IS GETTING US THE FACTS ON WHY THESE FACILITIES USE SO MUCH WATER. THIS IS ONE OF FIVE DATA CENTERS FROM MICROSOFT HERE IN THE CITY OF WEST DES MOINES. AND CONSTRUCTION ON A SIXTH ONE IS EXPECTED TO START LATER THIS YEAR. NOW, DATA SHOWS THAT THE CORPORATION IS ONE OF THE LARGEST USERS OF WATER HERE IN THE CITY. vlog WANTED TO GET THE FACTS ON WHY AND WHAT IMPACT THAT HAS HAD ON OUR SYSTEM, AND BASICALLY OUR ENTIRE DIGITAL LIFE RUNS OUT OF THESE DATA CENTERS. THE CITY OF WEST DES MOINES IS HOME TO FIVE MICROSOFT DATA CENTERS, WITH A SIXTH ON THE WAY. IOWA STATE PROFESSOR DOUG JACOBSON SAYS THESE CENTERS PRODUCE A LOT OF HEAT. WE’VE ALL HAD OUR LAPTOPS, RIGHT, AND THEY GET WARM. EACH SERVER IN A DATA CENTER IS PROBABLY 10 TO 20 TIMES THE POWER OF WHAT YOUR LAPTOP HAS. THAT’S WHERE WATER COMES IN. JACOBSON SAYS. IT’S NEEDED TO COOL THE BUILDINGS. WATER IS A VERY EFFICIENT WAY, FAIRLY EFFICIENT WAY TO MOVE HEAT OUT OF A BUILDING OR OUT OF A OUT OF A DATA CENTER. DATA FROM WEST DES MOINES WATER WORKS SHOWS MICROSOFT WAS THE SIXTH TOP WATER USER IN THE MONTH OF MAY, 2.1 MILLION GALLONS OF WATER USED ACROSS FIVE DATA CENTERS. SEVERAL REALTY AND PROPERTY GROUPS RANK HIGHER IN A CUMULATIVE SENSE. FROM APRIL 2024 TO MARCH 2025, MICROSOFT WAS THE HIGHEST USER OF WATER IN THE CITY. FIRST THING THAT COMES TO PEOPLE’S MIND IS THAT WATER AND COMPUTERS DON’T MIX. SO YOU WOULD NEVER THINK THAT THOSE TWO THINGS WOULD WOULD BE TOGETHER. WEST DES MOINES WATER WORKS GENERAL MANAGER KRISTINA MURPHY SAYS DATA CENTER USE REPRESENTS ANYWHERE FROM 2 TO 7% OF THE WATER USED BY CUSTOMERS EACH DAY. MURPHY SAYS MICROSOFT IS IN COMPLIANCE WITH THE OUTDOOR WATERING BAN, AND THAT THE BAN WOULD HAVE BEEN IMPLEMENTED REGARDLESS OF DATA CENTER WATER USAGE. THIS DYNAMIC RIGHT, JACOBSON SAYS. WATER USAGE FOR DATA CENTERS CAN VARY BASED ON HUMIDITY, OUTSIDE AIR TEMPERATURE, AND DATA USAGE. A SPOKESPERSON FOR MICROSOFT SAYS IN A STATEMENT. QUOTE, EFFICIENT DATA CENTER WATER USE IS A PRIORITY FOR MICROSOFT. BEGINNING AUGUST 2024, ALL OUR NEW DATA CENTER DESIGNS BEGAN USING ZERO WATER COOLING TECHNOLOGY. AS WE WORK TO MAKE ZERO WATER EVAPORATION, THE PRIMARY COOLING METHOD ACROSS OUR OWNED PORTFOLIO. END QUOTE. AND vlog REACHED OUT TO THE OTHER TOP USERS OF WATER, WHICH INCLUDE REALTY GROUPS AND PROPERTY GROUPS. ONE OF THOSE GROUPS IS R&R REALTY GROUP. THEY WERE THE TOP USER OF WATER HERE IN THE CITY OF WEST DES MOINES IN THE MONTH OF MAY, AND THE SECOND TOP USER IN THAT CUMULATIVE 12 MONTH PERIOD FROM APRIL 2024 THROUGH MARCH OF 2025. THEY TELL ME THEY STOPPED THEIR IRRIGATION AS SOON AS THAT BAN WENT INTO PLACE, AND THEY’VE ALSO PUT A PAUSE ON ALL OF THEIR SOD AND LANDSCAPING PROJECTS MOVING FORWARD. FOR THE TIME BEING. IN WEST DES MOINES, OPHELIA
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Updated: 7:13 PM CDT Jun 18, 2025
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Get the Facts: How much water do West Des Moines data centers actually use?
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Updated: 7:13 PM CDT Jun 18, 2025
Editorial Standards
West Des Moines Water Works (WDMWW) says the lawn watering ban currently in effect would have been implemented "regardless of data centers' water usage."General Manager Christina Murphy says data center use represents anywhere from 2-7% of the water used by their customers in the city each day. Microsoft Corporation owns and operates five data centers in the city, with construction for a sixth center expected to start this year.According to data from WDMWW, Microsoft was the sixth top water user in the month of May. The tech corporation used 2.1 million gallons of water across its five data centers. Several realty and property groups ranked higher.In a cumulative sense from April 2024 to March 2025, Microsoft was the highest user of water in the city. WDMWW general manager Christina Murphy said data center use represents anywhere from 2-7% of the water used by customers each day. Murphy said Microsoft is in compliance with the outdoor watering ban and that the ban "would have been implemented regardless of data center water usage."Murphy sent a statement to vlog that said:"Microsoft has been a great corporate partner. They have invested $25 million worth of water infrastructure that support WDMWW’s system and all our ratepayers benefit from. As noted above, Microsoft’s corporate plans to be carbon negative, water positive, and zero waste and their indication is they plan to move towards closed loop technology that will not require water for evaporative cooling." Iowa State professor of electrical and computer engineering Doug Jacobson said water is needed at data centers because the buildings produce a lot of heat."We've all had our laptops, and they get warm. Each server in a data center is probably 10 to 20 times the power of what your laptop has," Jacobson said. "Water is a fairly efficient way to move heat out of a building or out of a data center."He said water usage for data centers can vary based on humidity, outside air temperature and data usage. In a statement made to vlog, a Microsoft spokesperson said:“Efficient datacenter water use is a priority for Microsoft. Beginning August 2024, all our new datacenter designs began using zero water cooling technology, as we work to make zero-water evaporation the primary cooling method across our owned portfolio.” vlog also reached out to the other top users of water in West Des Moines. R&R Realty Group was the top user in the month of May and the second top user over a twelve-month period. In a statement, the president said:"R&R Realty Group takes pride in maintaining our commercial and residential properties in Central Iowa and also seeks to contribute positively to our community. Following the water use restrictions from Central Iowa Water Works, we immediately paused irrigation at all impacted properties and will continue to comply with local guidelines. In addition, we have paused new sod and landscape projects to reduce our irrigation need."Recent coverage of central Iowa water issuesCentral Iowa officials ban lawn watering to avoid potential 'water crisis'What are nitrates in drinking water and why Iowa officials are watching closelyLIST: Which Iowans are included in the ban on lawn watering?Des Moines shuts down spraygrounds as central Iowa cities work to conserve waterClive residents respond to lawn watering ban amid high nitrate levelsCentral Iowa landscaping businesses adapt to lawn watering banLawn watering ban still in place for more than 600,000 central Iowans; water usage drops by 30%Des Moines Water Works CEO links nitrate issue to farm fertilizers Communities can reopen splash pads and spraygrounds, Central Iowa Water Works says FULL NEWS CONFERENCE: Officials give updates on central Iowa water conservation efforts, nitrate levelsWATCH: West Des Moines Water Works general manager talks about future plans for nitrate treatmentWATCH: Clive residents respond to lawn watering ban amid high nitrate levelsWATCH: 'What is nitrate and where does it come from?': Des Moines Water Works CEO explains

West Des Moines Water Works (WDMWW) says the lawn watering ban currently in effect would have been implemented "regardless of data centers' water usage."

General Manager Christina Murphy says data center use represents anywhere from 2-7% of the water used by their customers in the city each day. Microsoft Corporation owns and operates five data centers in the city, with construction for a sixth center expected to start this year.

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According to data from WDMWW, Microsoft was the sixth top water user in the month of May. The tech corporation used 2.1 million gallons of water across its five data centers. Several realty and property groups ranked higher.

In a from April 2024 to March 2025, Microsoft was the highest user of water in the city.

WDMWW general manager Christina Murphy said data center use represents anywhere from 2-7% of the water used by customers each day. Murphy said Microsoft is in compliance with the outdoor watering ban and that the ban "would have been implemented regardless of data center water usage."

Murphy sent a statement to vlog that said:

"Microsoft has been a great corporate partner. They have invested $25 million worth of water infrastructure that support WDMWW’s system and all our ratepayers benefit from. As noted above, Microsoft’s corporate plans to be carbon negative, water positive, and zero waste and their indication is they plan to move towards closed loop technology that will not require water for evaporative cooling."

Iowa State professor of electrical and computer engineering Doug Jacobson said water is needed at data centers because the buildings produce a lot of heat.

"We've all had our laptops, and they get warm. Each server in a data center is probably 10 to 20 times the power of what your laptop has," Jacobson said. "Water is a fairly efficient way to move heat out of a building or out of a data center."

He said water usage for data centers can vary based on humidity, outside air temperature and data usage.

In a statement made to vlog, a Microsoft spokesperson said:

“Efficient datacenter water use is a priority for Microsoft. Beginning August 2024, all our new datacenter designs began using zero water cooling technology, as we work to make zero-water evaporation the primary cooling method across our owned portfolio.”

vlog also reached out to the other top users of water in West Des Moines. R&R Realty Group was the top user in the month of May and over a twelve-month period. In a statement, the president said:

"R&R Realty Group takes pride in maintaining our commercial and residential properties in Central Iowa and also seeks to contribute positively to our community. Following the water use restrictions from Central Iowa Water Works, we immediately paused irrigation at all impacted properties and will continue to comply with local guidelines. In addition, we have paused new sod and landscape projects to reduce our irrigation need."

Recent coverage of central Iowa water issues

FULL NEWS CONFERENCE: Officials give updates on central Iowa water conservation efforts, nitrate levels

WATCH: West Des Moines Water Works general manager talks about future plans for nitrate treatment

WATCH: Clive residents respond to lawn watering ban amid high nitrate levels

WATCH: 'What is nitrate and where does it come from?': Des Moines Water Works CEO explains