Get in line: Kealakehe R-1 project falls behind

Duckweed grows on the holding ponds at the Kealakehe Wastewater Treatment Plant. (Laura Ruminski/West Hawaii Today)

A 20-year-old plan to upgrade the Kealakehe wastewater treatment plant to produce and sell R-1, the highest grade of recycled water, risks sliding down the priority scale as the county tries to shore up other projects to avoid federal fines.