Experts challenge mining report's claims on groundwater safety

In a recent government meeting, significant concerns were raised regarding the environmental impact of a proposed mine expansion, particularly its effects on groundwater quality and quantity. Experts Mike Meredith and Dave Donahue presented findings from Hydro Solutions, which concluded that the data supporting claims of no adverse impact from the mining operations is insufficient and flawed.

The report criticized the monitoring approach used by GSI, stating that the locations of the wells were poorly chosen and that the methodology for assessing groundwater flow was inadequate. Specifically, it was noted that the arrangement of the monitoring wells resembled a line rather than the necessary triangular configuration, limiting the accuracy of groundwater flow assessments. The experts emphasized that a minimum of one year of data collection is essential before making any definitive conclusions about the mine's impact.

Moreover, the report highlighted the likelihood of shallow groundwater being affected by the mining activities. Evidence from well data indicated that groundwater levels are only nine feet below the surface, raising concerns about the potential for contamination. The experts pointed out that any mining activity that removes overburden could create a direct pathway for surface contaminants to reach the groundwater, significantly increasing the risk of pollution.

Despite these findings, the mining company has not provided adequate information regarding current and proposed water use, nor have they addressed how they plan to avoid intercepting shallow groundwater during mining operations. The meeting underscored the need for more comprehensive research and monitoring before proceeding with the expansion, reflecting the community's ongoing concerns about environmental safety and water resource management.