RE:Colacem- cement feedstock- unwanted Wtong again Alex; every mine retains trhe overdurden for the rehabilitation of the site. It is a soil component needed for the closure plan. That is standard proceedure and just who in hell would be dumb enought to use overdurnen snd the topsoil for road work. Unirock wanted the graphite free marble rubble and stone for construction, not overburden. They report separated after the blasting of the bench and was an offset of the pit cost in luie of cash for their work. You seem to be the one making up stories and as for Colachem, didn't they skip toen without fixing Kilmar Road leaving GSLR with a sorry mess to clean up. No way they were going to come back to GSLR and get caught for about 6 million bucks worth of road repair.
As for Kearney, Their mine tailings could become acidic but that is a process requiring time and easily remedied, but, Minnow Lake, Graphite Lake and McGuire Lake were already heavily acidic thre years before the Kearney Mine even opened. Acid rain Alex and uou can get the full report from MNR Ontario, Lake Sensitivity of Ontario Lakes 1989 Report. All three were class 3 acidic before the mine existed!