Tasman District Council owns, operates and maintains 12 sewerage reticulation schemes servicing the following communities:
Tasman District Council and Nelson City Council are equal joint owners of the Nelson Regional Sewerage Business Unit (NRSBU).
The wastewater treatment plant is located at Bells Island in Waimea Inlet.
The Wakefield, Brightwater, Hope, Richmond and Mapua/Ruby Bay communities dispose their wastewater to this plant which also treats a significant part of Nelson City's wastewater.
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A stock effluent dump point is located on State Highway 6 north of Murchison, 700 metres past the intersection of River View Road.
A stock effluent dump point is located on State Highway 60, approximately 150 metres from the intersection with State Highway 6.