May 2015

In May 2015, a team of geochemists from CMER installed a series of oxygen probes into two waste rock dumps at the Stockton Coal Mine to obtain data on the performance of the structures to reduce oxygen ingress. Probes were installed horizontally at 2, 4, 6, 10, 15, and 25m into the dumps. Subsequent lifts of waste rock will bury these probes deep with the core of the dump to enable understanding of the geochemical trends.