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Hydro Excavation

Hydro excavation is a safe and effective way to dig into the ground while protecting all underground assets. It uses high pressure water to break up soil and the ground while the vacuum hose simultaneously sucks up all debris. Using hydro excavation means safely avoiding underground assets being damaged by traditional excavation methods.

Our operators are experienced and highly trained in hydro excavation, and always work with all appropriate PPE gear required. We pride ourselves in providing an efficient and safe service using our 10,000 Lt and 12,000Lt hydro excavation trucks.  

When you need to avoid hitting underground services, you can trust the OVTS team to get the job done safely and on time.

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Frequently Asked Questions

Hydro excavation uses high-pressure water to break up soil while the powerful vacuum unit on our hydro truck removes the resulting slurry into a its 10,000Lt capacity tank.

It is more precise, reduces the risk of damaging underground services, minimizes reinstatement costs, and improves site safety.

  • Locating underground utilities and services
  • Potholing/daylighting
  • Trenching
  • Pole and sign installations
  • Excavating around tree roots
  • Cleaning catch pits and culverts
  • Working in congested underground service areas

When performed correctly, hydro excavation is considered one of the safest excavation methods for exposing underground utilities such as water, power, gas, fibre, and telecommunications.

Yes, hydro excavation is commonly used around live services because of its precision and reduced risk of damage.

All clean and wetfill product removed is taken back to Reliance Recovery NZ Limited, Dunedin’s only locally owned and operated waste dewatering facility that sustainably turns your waste into a reusable product. Want to find out more, check out their website at reliancerecovery.nz