"...
Officials say crews on the site of a major cyanide spill at a mine in central Yukon are facing an intense period of work over the next few months to install environmental protection before winter freeze-up arrives...."
"... Erin Dowd, the territory’s manager of major mine licensing, told a briefing Friday that with the receivership in place, work is underway to install five groundwater monitoring wells. She said other priorities include increasing water storage at the site and addressing the stability of the heap by building a berm as protection if the rock were to slide again.
“There’s a lot of work that we’ll have to do prior to freeze-up, and part of the work we’re doing this week and next week is looking at what has to be winterized, what activities have to be prioritized, so that we can prepare ourselves for that,” Dowd said.
Yukon Mines Minister John Streicker said the five wells that are currently being constructed are in what’s considered a safe zone, further away from the spill.
He said the aim is to have additional wells just below the slide, but that the berm needs to be in place first so that those can be installed safely.
“Once we start to get that information, it’ll help us to understand what we’re up against and how long it’s going to take to address,” he said...."
https://financialpost.com/pmn/yukon-prepares-for-busy-expensive-few-months-at-site-of-ore-slide-before-freeze-up