Regis Resources are soon to resume mining at the Garden Well project, after three days of rain in February forced a shutdown of operations.
The gold miner has now finished with pumping water out of the northern part of the Garden Well open pit, with the pumping contractor's equipment demobilised.
Regis said it will now remove sludge and sediment, about one metre deep, and that mining is due to resume at the end of June.
Regis says it plans to focus on mining schedules and throughput at Garden Well and Rosemount to optimise operations over the next 12-months.
It was described by Regis as a “one in 150 year rainfall event”, in which 130mm fell within a 14 hour period.
Regis issued a force majeure to MACA immediately after the event, and initiated a trading halt on the ASX.
Throughput has been adversely affected by wet ore on the crushing circuit and a high proportion of harder chert ore.
Production guidance for 2015 has been lowered, and Regis’ focus at the Duketon Project will be aimed at optimising the mining schedules and achieving the best possible steady state mill throughput rates at both Garden Well and Rosemont.
Regis will also review operating costs across the board.