Revida Water Achieves Independent Drinking Water Certification at UC Davis; Launches Per-Gallon Subscription Service for California’s 1,500+ Wineries Facing New State Regulations
April 7, 2026 (Napa, CA) — Revida Water has converted winery wastewater into drinking water – verified by an independent lab against US EPA standards – making it one of the first commercial companies to achieve this result with independent third-party verification. The milestone, achieved at the Teaching and Research Winery operated by the Department of Viticulture and Enology at UC Davis during the 2025 harvest season, transforms one of agriculture’s most persistent regulatory liabilities into a clean, reusable asset.
The timing is critical. More than 1,500 California wineries are now required to comply with the state’s Water Resources Control Board Winery General Order, forcing a costly choice: pay to haul wastewater offsite on an ongoing basis, or build permanent on-site infrastructure that can exceed $500,000. Revida eliminates that binary with a streamlined, on-site water reuse solution that satisfies state mandates without triggering major capital expenditure.
“We’re like the Amazon Web Services of wastewater treatment,” said Ashish Shah, founder and CEO of Revida Water. “Cloud computing became ubiquitous for most businesses because server management was not a core part of their business. Let someone else do it. Winery owners and operators are experts in making wine – they shouldn’t have to be experts in wastewater management.”
Revida designs, builds and operates fully containerized water treatment systems delivered through a per-gallon service model with guaranteed performance — eliminating significant up-front capital expenditure and transferring all technology and performance risk to Revida. The company’s vertical integration allows it to deploy solutions in weeks rather than the years typically required for traditional wastewater projects.
Revida’s installation at the Teaching and Research Winery operated by the Department of Viticulture and Enology at UC Davis began just before the 2025 grape harvest and continues to operate today, treating up to 600 gallons per day of winery process water — the water used to clean the crushpad, hoses, tanks, and equipment. The unit runs entirely on solar power, with a standard 110V outlet as backup. Winery wash water is a challenging industrial wastewater stream, with Chemical Oxygen Demand (COD) levels ranging from 5,000 to 45,000 parts per million.
The treated water has now been verified by an independent lab against EPA drinking-water standards, proving that winery wastewater can be turned from a regulatory liability into a precious asset.
“At UC Davis, we are training the winemakers and industry leaders of the next generation — which means we have both the opportunity and the responsibility to lead on sustainability, not just study it,” said Ben Montpetit, Ph.D., Department Chair and Professor of Viticulture and Enology at UC Davis. “Partnering with Revida to bring this technology to our campus was a deliberate choice. Our students will enter an industry facing serious water challenges, and we want them to see firsthand that those challenges are solvable.”
Revida is now commercializing its subscription service for mid-market California wineries. Commercial deployments are designed to treat between 1,000 and 1,000,000 gallons per day. The company is currently in discussions with winery operators, dairy processors, dairy farms and agricultural facility operators across the US.
About Revida Water
Revida Water is a Napa-based startup that delivers on-site water reuse as a subscription service to the wine, dairy, and agricultural industries. The first commercial water treatment company to independently certify winery wastewater to EPA drinking water standards, Revida also holds world-first achievements in converting dairy and wine processing wastewater to potable quality. The company designs, builds, and operates fully containerized treatment systems that clients access on a per-gallon basis with a process guarantee — with minimal capital expenditure required. Founded in 2022 by Ashish Shah, Revida is on a mission to make industrial water reuse simple, sustainable, and economically advantageous. Visit revidawater.com.
