Agriculture & Water

Ashok Gadgil

UV Waterworks drinking-water disinfection device

United States · IndiaEvidence: high confidenceChecked July 2026

Ashok Gadgil co-developed UV Waterworks, an ultraviolet device that disinfects drinking water without complex infrastructure. The low-maintenance physical system expanded access to safer water in underserved communities, and UC Berkeley documents Gadgil’s continuing role alongside the technology’s public-health impact.

01

What Ashok did

Invented the UV Waterworks ultraviolet drinking-water disinfection device with Vikas Garud.

02

Why it matters

UC Berkeley identifies UV Waterworks among Gadgil’s best-known technologies and records his 2023 National Medal.

03

Living-status check

UC Berkeley’s 30 April 2024 announcement documents Gadgil’s participation in the PBS documentary Pathways to Invention.