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Civil Case Study: Rangitahi Peninsula – Hydrosystem


Removal of TSS and heavy metals from new subdivision before being discharged into the Wainui Stream.


We designed in conjunction with Harrison Grierson Tauranga a pre-fitted fibreglass chamber c/w riser, filters, access lids and ladder. The chambers were 1500mm and 2500mm dia. Since it was a completely kitted out option all the contractor had to do is drop it in the hole. The Hydrosystem is designed to remove heavy metals, TSS and reduce nutrients being allowed in the waterways.

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