Evidence of Parapara Stream and Aurere outfall pollution would again be submitted, including drone footage recorded on February 15 that he said showed toxic algal blooms "again" in both the wastewater ponds and the receiving Parapara ponds.
CWTS would also again submit its electro-coagulation (EC) wastewater cleaning trial data, which he said had been favourably peer-reviewed by NIWA, showing the removal of 95 per cent of phosphorus, 99.9 per cent of E. coli bacteria and algae, 85 per cent of nitrates, and 50-60 per cent of ammonia. With the addition of a centrifuge unit to follow EC treatment, separated nutrients could be delivered to convert sludge into fertiliser products, thereby negating an an expensive waste sludge problem.
Mr Parsonson said CWTS was requesting that the Taipā plant release water of recreational standard quality, with agreed parameters, which could be achieved with an EC upgrade.
"The water could even be reused," he said, "but the NRC and FNDC are currently showing they are asleep at the wheel by ignoring all the work we have put into this issue. They seem to want instead to carry on with the same old polluting methods that are demonstrably more expensive and don't work. Twentieth Century technology must give way to superior 21st Century technology when it arrives.
"It is particularly frustrating that public funds are being wasted on an Environment Court case that could instead be going towards a successful upgrade."
The Clean Wastewater Appeal would be launched at the Mangonui Waterfront Festival on Saturday, where the demonstration EC model will be operating. Members of both Clean Waters to the Sea and Te Mana o Te Wai would be there to answer any questions. "This is an important moment in time, when we hope the public will show their support when we need it," he said.
Donations could be made into the CWTS Charitable Trust Kiwibank account 38-9014-0256091-00, while a Give-a-Little page would be promoted.