Gypsum Scaling- although gypsum is inert, it will deposit scaling on machinery, culverts, sumps and discharge pipes/hoses. What will be used to remove the scale deposits? Generally speaking, acid-based products are used for eliminating scale build up. What is the plan to eliminate scale, as whatever is used will also end up in the receiving environment?

We do not anticipate scaling will become an issue. Scaling generally occurs as you heat water, which can eventually cause calcium sulphate to precipitate as a “scale” on plumbing and hot water tanks.   There is no need to warm the water at the quarry.  Instead the water will be managed at ambient temperatures, which will avoid causing scaling.