Water Quality App from UK Spinout to Map US and UK Waters 2026

A new water quality app from a UK university spinout is set to map contamination across UK and US waters, using AI to predict risks. Molendotech, a spinout from the University of Plymouth, has developed a portable test that detects E. coli and other harmful bacteria in water within minutes, eliminating the days-long wait for laboratory results. Now the company is building an app that aggregates daily water test data with rainfall and tidal flows to create predictive models for water quality, with a launch planned for October in both the UK and US.

Why Real-Time Water Quality Monitoring Matters

Recent years have seen a surge in sewage spills and pollution incidents across popular swimming spots, leading to hundreds of reports of illness. Surfers Against Sewage has already received 164 reports of sickness from beachgoers this year, including gastroenteritis, ear infections, and skin conditions. The current system relies on lab tests that can take 24 to 48 hours, meaning swimmers often get results after they've already been exposed.

Molendotech's Bactiquick handheld device changes this by delivering on-the-spot results. It detects gram-negative bacteria such as E. coli, Pseudomonas, Legionella, and salmonella, which are protected by an outer shell and pose serious health risks. The new app will combine these rapid tests with environmental data, allowing users to see current and predicted water quality in real time.

How the App Uses AI to Predict Contamination

The app's predictive models are trained on historical and live data, including rainfall, tide patterns, and test results. By analyzing these variables, the AI can forecast when and where contamination is likely to occur, giving swimmers and local authorities a proactive tool. This is a significant step beyond reactive testing, as it enables early warnings and better public health protection.

Professor Simon Jackson, chief scientific officer and founder, emphasizes the ease of use: “What we’re providing is a tool to enable companies or individuals or groups to test the water because it’s easy to use and portable. You can test the water repeatedly on the same day. You get a result in real time, whereas currently you’re having to wait one or two days to get a result.”

Comparison: Traditional Lab Testing vs. Bactiquick

Key Takeaways for Swimmers and Policymakers

• Real-time detection of harmful bacteria reduces health risks.
• AI-driven predictions help anticipate contamination events before they occur.
• Portable testing empowers communities and individuals to monitor local waters.
• Data transparency can pressure governments to improve sewage infrastructure.
• Global expansion from UK to US waters addresses a widespread problem.

Future Impact on Water Safety

The launch of this water quality app could set a new standard for environmental monitoring. By making data accessible and actionable, it not only protects public health but also holds polluters accountable. As more users contribute test results, the predictive models will become even more accurate, creating a community-driven network of water quality intelligence.

For now, the focus is on the October launch, but the potential for expansion to other regions and contaminants is vast. With increasing public concern over water pollution, this innovation arrives at a critical time.

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