Tuesday, June 2, 2026

The Paris Olympics $1.5 Billion Seine Cleanup Yields Mixed Results

  • Open-water swimming events at the Olympics concluded Friday.
  • No competitions were canceled despite questions about water quality.
Grace Hollars-USA TODAY Sports

The final open-water swimming competition of the Paris Olympics concluded Friday, bringing an end to a tumultuous, dramatic, and expensive saga.

The city of Paris spent $1.5 billion to clean up the Seine river, which ultimately hosted five events during the Games despite questions about water quality and its safety for swimming. But that exorbitant expense wasn’t enough to quell disruptions.

Pollution in the Seine, particularly E. coli levels, has fluctuated throughout the Olympics, in large part due to heavy rainfall before and during the Games. And while no competitions were canceled, several practice sessions were called off, and the men’s triathlon was delayed one day.

Mixed Results

Hungary’s Kristóf Rasovszky won the gold medal in the men’s 10-kilometer marathon swimming event that took place in the iconic river Friday after Dutch swimmer Sharon van Rouwendaal won the women’s event Thursday. Ahead of the men’s competition, Sweden’s Victor Johansson dropped out, claiming the Seine’s river quality had made him sick.

On Monday, Germany won gold in the triathlon mixed relay after Belgium pulled out of the competition because one of its team members got sick. At the time, it was believed Claire Michel fell ill from swimming in the Seine during the women’s triathlon, but it was later determined to be a virus.

Last week, Great Britain’s Alex Yee won the men’s triathlon, but only after the event was pushed back one day to July 31 because of poor water quality when the Seine was tested the day before. France’s Cassandre Beaugrand won the women’s triathlon, which went ahead as scheduled July 31.

Swimming in L.A.

In 2028, open-water swimming at the Los Angeles Olympics is set to take place at Long Beach. The venue will span 11 miles of waterways connected to more than 5 miles of sandy beaches.

The most recent budget projections for the entire Los Angeles Games have come in around $7 billion, compared to potentially $10 billion for the Paris Olympics, once the final numbers come in.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

Jun 1, 2026; Raleigh, North Carolina, USA; Carolina Hurricanes general manger Eric Tlulsky during media day for the 2026 Stanley Cup Final at Lenovo Center.

With a Ph.D. in Chemistry, Hurricanes GM Stands Out in NHL

Carolina’s GM has a background that is exceptionally rare in hockey.

Jon Rahm Says His Job Is Playing Golf, Not Pitching LIV to Investors

Rahm is not taking the approach of Bryson DeChambeau.
Jun 1, 2026; Raleigh, North Carolina, USA; Vegas Golden Knights head coach John Tortorella during media day for the 2026 Stanley Cup Final at Lenovo Center.

Tortorella Stars As Central Character of Stanley Cup Final

The often-combative NHL head coach is on a historic run.
Jason McIntyre

How FS1’s Jason McIntyre Became a Liga MX Minority Owner

“Half the battle in work and in life is justifying your existence.”

Featured Today

Frances Cabral-Delaney

How Arsenal Fandom Went ‘Manic’

“People do not become Arsenal fans because it’s easy,” says Zohran Mamdani.
May 23, 2026; Anaheim, California, USA; Fans participate in a tarp off during a MLB game between the Los Angeles Angels and the Texas Rangers at Angel Stadium
May 28, 2026

‘Tarps Off’: How Shirtless Fans Took Over MLB

The viral movement began with the SFA club baseball team.
Apr 6, 2026; Arlington, Texas, USA; Seattle Mariners catcher Cal Raleigh (29) walks to the on deck circle during the game against the Texas Rangers at Globe Life Field
May 28, 2026

Why Ballparks Are Louder Than Ever

Some stadiums sound like veritable nightclubs. How did we get here?
May 24, 2026; Evanston, IL, USA; Northwestern Wildcats attack Kathryn Ratanaproeksa (13) shoots against the North Carolina Tar Heels during the first half at Martin Stadium
May 26, 2026

Can Women’s Lacrosse Buck the Trend in College Sports?

The sport is fighting to prove its worth in the revenue-sharing era.

Indiana’s Bears Stadium Bid Gets More Real After Illinois Misses Chance

Recriminations rise as Illinois leaders fail to ratify a Bears stadium bill.
May 31, 2026

Bears $5B Domed Stadium Plan Hits Make-or-Break Day in Illinois

Political negotiations are going down to the final hours in Illinois.
June 1, 2026

Illinois’ Last-Minute Push for $5B Bears Stadium Runs Out of Time

The state Senate approved a dramatically reworked stadium bill.
Sponsored

Landon Donovan: What Soccer in America Still Needs

Landon Donovan discusses the evolution of soccer in America and investing in the NWSL.
May 27, 2026

Bucs Stadium Push Could Complicate Rays Ballpark Deal

The neighboring MLB and NFL teams might battle for the same tax funds.
May 26, 2026

Bears Stadium Saga Now Tied to Potential $1.5B Tax Break

The local politics around the proposed stadium remain difficult.
May 21, 2026

Rays $2.3B Stadium Plan Survives Narrow Tampa City Council Vote

The Tampa City Council narrowly approves a non-binding stadium agreement.
May 20, 2026

Political Sparring Intensifies Over Bears’ $5B Stadium Future

The stadium saga is the center of a growing political fight.