As part of the capacity upgrades of the EPS Ash Dam, SNK was engaged to undertake the construction of an engineered stockpile (Cell ABC Dry Stack) consisting of 1.3million cubic meters of engineered Fly Ash Fill, detailed surface and perimeter drains.

To implement this project successfully SNK were required to execute the below:

• Clearing of a previously rehabilitated portion of the Ash Dam, mulching cleared trees and removing all capping materials back to Fly Ash.

• 1,300,000 tonnes Fly Ash fill excavated, hauled, placed, rolled, trimmed and compacted using GPS guided machinery.

• Nuclear Densometer and Sand Replacement testing on all fill to level 1 AS.

• Management of critical environmental controls , dust and water management in close proximity 800m to Lake Macquarie.

• Implementation of a series of misting sprays to mitigate dusting issues. This misting spray system was nominated and a finalist for Origin’s annual safety and environmental awards.

• Surface Capping and rehabilitation with ongoing maintenance.

This project demonstrated SNK’s desire to exceed our clients expectations, it was completed within budget and timeframe and also gained us the recognition as we were awarded a finalist at the Orgin Annual Safety & Environmental Awards!