Suspended solids no issue

LETTER

To councillor Dowsing (July 15 letter) — there is no mischief in discharging 1.5 tonnes of suspended solids a day into Poverty Bay through the marine outfall. On average 41,000 tonnes of silt is disgorged daily out the Waipaoa River mouth. What is relevant is the composition of the material discharged and its effects.

In March 2015 a consultant engaged by the GDC reported that the quality of the existing discharge was at a level which was not causing any adverse effects on the ecology of the receiving environment. That person also reported that, based on monitoring data, the discharge was generally within the prescribed limits of the existing consent.

On the topic of suspended solids, the council-appointed commissioners, who were considering a consent variation application, concluded in April 2015 that suspended solid concentrations already complied with the current consent conditions and those that had been set for after long-term management options were implemented.

Are we to assume that because the methodology adopted in the current wetland trial is not to be implemented (well it’s not a preferred option) it will be cast aside? If so, how much has the entire exercise cost?

Gordon Webb

To councillor Dowsing (July 15 letter) — there is no mischief in discharging 1.5 tonnes of suspended solids a day into Poverty Bay through the marine outfall. On average 41,000 tonnes of silt is disgorged daily out the Waipaoa River mouth. What is relevant is the composition of the material discharged and its effects.

In March 2015 a consultant engaged by the GDC reported that the quality of the existing discharge was at a level which was not causing any adverse effects on the ecology of the receiving environment. That person also reported that, based on monitoring data, the discharge was generally within the prescribed limits of the existing consent.

On the topic of suspended solids, the council-appointed commissioners, who were considering a consent variation application, concluded in April 2015 that suspended solid concentrations already complied with the current consent conditions and those that had been set for after long-term management options were implemented.

Are we to assume that because the methodology adopted in the current wetland trial is not to be implemented (well it’s not a preferred option) it will be cast aside? If so, how much has the entire exercise cost?

Gordon Webb

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