Gisborne wastewater overflows

Dr Mike Stewart has been undertaking ecological risk assessments for emerging organic contaminants (EOCs) in treated wastewater and untreated wastewater overflow discharges for Gisborne District Council. His prepared evidence for a July hearing for reconsenting of wastewater overflows was taken as read by the hearing commissioners, with the consent granted in late October. True to form, a week after the consent was granted the heavens opened unleashing 2 months’ worth of rain in 36 hours leading to widespread flooding and significant overflow events.

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Receiving environment sites used for assessment (numbered and yellow) with 4 discharge locations (not numbered and red).
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