Aging water pipes cracking under pressure

Athens’ water supply faces significant challenges, with frequent leaks, broken pipes, and infrastructure damage exacerbating the daily operations of the water utility, EYDAP.

“On a daily basis, we deal with trucks that mount curbs, fiber-optic crews cutting pipes, and asphalt repairs that bury vital valves,” said Giorgos Karagiannis, general director of water supply at EYDAP.

Athens’ unique geography presents additional hurdles.

Unlike most European cities, which operate water systems under low pressure, Athens must push water through pipes at double the usual pressure due to its hilly terrain.

“It’s a difficult equation. High areas need strong pressure, but low areas suffer from burst pipes,” Karagiannis explained.

Every day, EYDAP receives 300 new reports of leaks, but a third are unnecessary. “People see water on the road and call us. Sometimes, it’s just a broken faucet or a garden sprinkler,” he added.

A significant portion of these leaks, around 65-70%, occur at water meters.

Since these meters are often located in unprotected sidewalks, they are easily damaged by vehicles. “Most leaks happen at the meter, which isn’t visible to the consumer,” Karagiannis said.

Aging pipes also present a challenge, as 55% of EYDAP’s pipelines are asbestos-cement, installed over 30 years ago. “After years of pressure changes, these pipes eventually crack,” Karagiannis added.

In addition to addressing leaks, EYDAP faces complications from external projects. Fiber-optic installations often cut into water lines, further complicating repairs. “Contractors don’t check pipe locations and end up cutting supply lines,” Karagiannis said.

For consumers with concerns about water quality, EYDAP conducts thorough testing. “We test 9,000 samples annually,” said Phani Miskaki, EYDAP’s water quality supervisor.

Consumers can call 1022 if they suspect a problem.