Key Services Our capabilities are broad based and include: Groundwater management and protection Water supply (potable and other) Mine dewatering and pit-wall depressurisation Excess water disposal Seepage assessments Groundwater modelling Water quality database management Geophysical surveys for hydrogeological investigations. GoldSim Site-wide water balance modelling GRM are here to provide you with robust solutions to your water management issues from project development, through to operations and after closure. Designed by ddagroup corporate communications