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Production at one of Australia’s largest gold mines has been put on ice for the second time in less than six months due to a crippled tailings dam.
A Newmont spokesman told The West Australian that milling activities were suspended at the historic Telfer mine in the East Pilbara following “detection of seepage” from a section of the wall at one of its tailings storage facilities (TSF 7) on April 14....
https://thewest.com.au/business/mining/newmonts-for-sale-telfer-gold-mine-in-the-pilbara-halts-production-again-over-tailings-seepage-concerns-c-14563896
https://www.businessnews.com.au/article/Newmont-pauses-Telfer-after-notices
Most people knew this already, but it's only widely being reported today, I believe due to the official 'WorkPlace' prohibition notices being issued.
Overall, IMHO, it's actually a positive thing for us, if we're in any negotiations with Newmont, since it's better it's happened now (and also earlier) rather than later, and can be factored more fully into those negotiations, highlighting in general, too, the risks & costs involved with aging plant.
It could also be a massive negative, they could make a decision change and take the hit and close it ! Where would ggp be then ? At least 5 years to build a new plant i would assume . Just for balance of course
Freddie the only massive negative as you put it, is you.
Ok ok i know you don’t like to hear these things spade i apologise but we don’t know for sure do we
Freddie, I do feel sorry for your family, having to put up with what I can best describe as a Victor Meldrew character 24/7. We’ve finally come out of a dismal winter and the sun has begun to shine. Any chance you might just change with the season’s also and put a smile on yer face. You never know, you might just like it.
Ha ha “ i don’t believe it” the sun not found its way to the west country yet lol hopefully we won’t have one foot in the grave before we get rich , good luck sir
Freddie, it’s an alternative view which is ok, however I reckon Newmont will have it sorted in short order. I would reckon any maintenance will be completed on the plant whilst production is on hold and then it’ll business as usual. Meanwhile Shaun will be getting a few quid knocked off the price and Newmont will want it off their books even quicker.
Well that’s a start Freddie, see it’s not too difficult to be a tad positive, is it. Chat later, as just taxing down to the runway. I’ll look out for you in around 20 mins when I fly by 😂
best way forward for nem is to say to ggp what price for everything in the paterson and take responsibility for everything in other words wash our hands of everything and walk away. i say yes 1$ and 300 million usd bond to cover restitution of telfer. ggp would have to use nem/newcrest design and engineering practices and mining safety manuals to run telfer and finish havieron as ggp will not have such a document/manual, one cant do the repair of the tailing dam on the back of a *** packet. dm
The tailings dams are not company specific guidelines but Newmont have said their procedures are superior to Newcrests.
This would mean that thorough investigations of the dams are being carried out probably resulting in these defects being found out.
There are global recommendations for detailed construction of tailings dams.
This is one https://unece.org/fileadmin/DAM/env/documents/2014/TEIA/Publications/1326665_ECE_TMF_Publication.pdf.
Regarding the processing plant, there will be manuals but there’s also the staff there to continue using them plus we have Otto who used to run it, so I would expect an easy transition from Newmont to Ggp. Although expect to see a lot of efficiency methods introduced. We have a lot of experts on the Board.
Regarding if Ggp doesn’t get Telfer and a new plant is required, you have to remember we don’t need a big plant to start off with 3mt a year is small scale. There are small modules on the market, check out Jlp in Zambia there planning loads around that country, I think the price is about £6m but would have to check that.
The main issue with a plant at Havieron is its on an environmentally sensitive spot so room is limited. I mentioned this to Shaun in London but he said it would be no issue.
I’m not convinced of that when you look at how big Telfer has become, from the satellite images it would cover the most of Scallywag.
Telfer at the moment can be seen from way up, Havieron is not visible.
The cubic metre of the Telfer pond is around 250m cubed, my top ovoid cube is around 175m down to 900m. They will be comparable eventually.
Thank you Bamps
The available modelling indicates any failure of TSF 7 would be limited to the immediate vicinity
of Telfer Mine. A failure could impact the Telfer mine site village to the east, or mine site
infrastructure if the breach was to the west.
The Emergency Preparedness and Response Plan (EPRP) is covered under the Dam Safety
Emergency Plan (DSEP) and the site emergency response plan.
The purpose of DSEP is to enable Newcrest to manage incidents that could occur at Telfer TSF 7
and/or TSF 8. The DSEP identifies potential events and incidents, defines those personnel
responsible for dam operation and implementation of the response, and describes procedures for
notification, communication and escalation of the emergency response.
The purpose of the site Emergency response plan is to activate and follow standard emergency
processes once the dam safety incident progresses to a site emergency. This includes integrated
incident and crisis management tools which are standardised throughout Newcrest.
In the event of a tailings dam related emergency, the site emergency response team would be the
first and primary responders. Due to the distance between Telfer and the nearest major centres,
the site emergency response team plan all initial responses without support from public agencies.
Mutual aid agreements are in place however due to distance, these supports are not relied upon.
Dates of most recent and next independent reviews
Newcrest uses the Canadian Dam Association guidelines for Dam Safety Reviews for all TSFs,
regardless of jurisdiction, and the frequency is driven by the most frequent of regulatory
requirements, ITRB recommendations and GISTM.
Dates of most recent and next independent reviews
Newcrest uses the Canadian Dam Association guidelines for Dam Safety Reviews for all TSFs,
regardless of jurisdiction, and the frequency is driven by the most frequent of regulatory
requirements, ITRB recommendations and GISTM.
Facility Telfer TSF 7
Date of last Dam Safety Review 2019
Next Dam Safety Review 5 years 2024
The 2022 Telfer Mine Closure Plan was approved by the Regulator (DMIRS) in June 2023,
meeting the regulatory requirements for closure liabilities and providing adequate financial
capacity for closure.
These things are apparently engineered for life. One wonders how many million tons a year can be added to them, building them up, and still remain within what is sensible. Having said that, it must have all been taken into account when Newcrest and Ggp earmarked Telfer for Havieron ore.
I don’t know the technicalities. Probably nothing like that quantity, with a lot of waste turned into paste for infil. That sort of thing.
As Bamps said, look at some of these mobile plants. 2000 tons an hour is not bad for something that you can tow about to where you need it.
https://dovemining.com/
Great find Bellars.
2,000 ton per hour is about 17mt per year so more than capable
Bamps, I just had another look. The mega miner 2000 tph isn’t shown(MEGAMINER® Stationary and Semi-Stationary processing plants, capacity range of 10-2,000 TPH (solids)), but the trailer one is only 200 tons per hour. However, 200 tons an hour from the back of a mobile plant is moving some spoil. I suppose you could run several until the proper plant could be set up and sorted.
Hi Bellars/Bamps. That info has just blown Newmont out of the water, as far as GGP is concerned. I should imagine the finished plant would cost considerably more to site and get operational. Any ideas on additional costs? ATB Speedy
Hi All. Just read Bellars last post. Thought it was too good to be true. ATB Speedy
Whatever on that. Ggp repeatedly say at the bottom of RNSs, ‘Havieron is intended to leverage the existing Telfer infrastructure and processing plant. Access to Telfer would de-risk the development and reduces capital expenditure.’
Great find.
How could we keep the existing infrastructure (landing strip, accommodation, canteens etc) at Telfer and transport the people to Hav rather than the earth to Telfer, surely that would be cheaper and more environmentally friendly.
Hi Speedie , Liam
Gaining Telfer is the big prize but it is possible to site equipment at Havieron.
Here is a section of what JLP are up to
“The copper Waste Rock Project scope targets the processing of in excess of 260 million tonnes of copper containing surface material. The project targets to initially implement four modular processing plants holding a combined processing capacity of 2.4 million tonnes per annum capable of producing more than 20,000 tonnes of copper in concentrates per annum, commencing in Q2 CY24 of which 30% will be attributable to Jubilee.
The copper modular processing units are similar in design to the Roan plant upgrade which seeks to upgrade the surface material to a copper concentrate which can be further refined to metal. The initial capital investment for the project is estimated at US$50 million.”
That’s for 260m tons so way bigger than our starter mine and there’s 4 modules for that, so Havieron plant could be done as and when required.
Telfer air strip camp and power stations could be sold separately as a going concern.
Solar and wind will progressively reduce the need for the power station.
Plus Havieron still needs the tailings for the paste fill, so that’s a saleable project
Anyone who believes the processing plant for havieron is able to be pulled behind a wagon is delusional.
To put things in perspective TSF 7 which we are discussing held 165 million cubic metres in 2022 was 150ft tall (14 storey building) and at its base was 8 km in circumference.
You need to do some research before posting