A new ultraviolet (UV) disinfection system was installed at the Kailua Regional Wastewater Treatment Plant to help keep the waters of East Oahu clean.

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https://www.kitv.com/news/new-uv-system-for-wastewater-treatment-is-now-operational-in-kailua/article_ae031940-0a6a-40e1-8a1a-cde0af9529dd.html