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Porirua plant operator apologises after UV filter switched off for 18 hours

An ultraviolet light at Porirua’s wastewater treatment plant was off for 18 hours, according to a report at www.stuff.co.nz, but authorities say the health risk is “very small”. On Tuesday Wellington Water chief executive Colin Crampton said it identified the UV treatment was not running for 18 hours – since 3pm on Monday. It was reactivated as soon as it was discovered to be off. The ultra-violet (UV) treatment equipment was not running at the Porirua Wastewater Treatment Plant for 18 hours. “The risk to health from this bypass is very small, as the tidal current will dilute and…
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