Another offshore deep sea project has been carried out by AUS-ROV, this time performing works as part of an environmental monitoring condition for a mine in remote Papua New Guinea. The pipeline which releases tailings at a depth of 150m and drops off to 300m has to be inspected to ensure that there are no leaks above the Surface Mixed Layers consisting of the Euphotic Zone Depth (UZD @ 80m), Upwelling Depth (UWD @ 100m) and Mixed-layer Depth (MLD @ 120m). Sediment sampling and continual monitoring for environmental impacts are something AUS-ROV personnel are passionate about and an intimate association with environmental assessors involved in this particular project will be an ongoing focus.