Two North Hall teens built a water quality sensor for $300. It's already been tested in Peru - Gainesville Times

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Two North Hall teens built a water quality sensor for $300. It's already been tested in Peru

North Hall High School students Spencer Perry and Elizabeth Reed demonstrate a device they created on the shores of Lake Lanier Friday, April 3, 2026, that can test water quality in numerous different ways. The device, known as "The Octopus", has won several awards and is currently being tested to get it patented. - photo by Scott Rogers

04062026 OCTOPUS 3.jpg — North Hall High School students Spencer Perry and Elizabeth Reed demonstrate a device they created on the shores of Lake Lanier Friday, April 3, 2026, that can test water quality in numerous different ways. The device, known as "The Octopus", has won several awards and is currently being tested to get it patented. - photo by Scott Rogers

When Hurricane Helene tore through the southeast, the destruction went beyond flooded homes and damaged roads. Violent floodwaters churned up sediment, contaminating local water supplies and leaving residents uncertain about what was safe to drink.