About New Zealand Aluminium Smelters (NZAS)
New Zealand Aluminium Smelters (NZAS, wholly owned by Rio Tinto) operates the Tiwai Point aluminium smelter near Bluff, with extensive private within-site HV electrical, water and process reticulation. On-site locates are handled directly by the site, not beforeUdig.
Their assets sit underground across their service area, alongside other utility networks.
New Zealand Aluminium Smelters (NZAS) is one of 6 utility operators active in Southland. Most building or landscaping work in this area touches multiple operators' networks at once - power, water and communications cables routinely share the same trench. The list further down shows the other utilities you'll likely need to contact alongside New Zealand Aluminium Smelters (NZAS).
Where New Zealand Aluminium Smelters (NZAS) operates
Before you dig in Invercargill City
Striking an underground pipe can cause injury, large repair bills and outages for your neighbours. Three steps to do it safely.
- 1
Find every operator that serves your site
Map your worksite on UtilityFinder to find every operator that serves the area - power, water, gas and comms in one view - so you don't miss anyone when sending locate requests.
Create your map - 2
Request a locate from New Zealand Aluminium Smelters (NZAS)
Contact New Zealand Aluminium Smelters (NZAS) and any other operators in your area to confirm the position of their underground assets before excavation.
New Zealand Aluminium Smelters (NZAS) website - 3
Mark, protect, dig carefully
Mark the locate paint or pegs on site, hand-dig within 0.5 m of marked assets, and never assume a clear trench means clear ground.
Other utilities serving Southland
Most building or excavation work touches more than one operator's network. Here's who else you may need to contact.
Find every operator serving your site in 30 seconds
UtilityFinder shows every utility operator that serves Southland - power, water, gas and comms - with contact details and locate-request links in one shareable view. Plan your dig with confidence.
Create your map - free