Improving Stockholm's water supply with new reservoir

The old Tensta water reservoir in Järva, which supplies drinking water to approximately 220,000 people in western Stockholm, needs renovation. Instead of just renovating, a new reservoir will be built next to the existing one; once it's complete, the old one will be refurbished in an eight-year project slated to begin construction in 2027. This project aims to improve drinking water supply, ensure water quality, and make the system more resilient, though the cost remains confidential, with 550 million SEK (2021 price level) previously cited.