A significant number of wells in Manitoba may be carrying water with manganese levels well above new health standards, particularly for infants. The province on May 3 issued an advisory for owners of private wells that their water “may exceed a new health-based guideline” for the trace element. The element occurs naturally, and commonly, in well water throughout Canada. It’s often associated with discoloured (that is, brown or blackish) water, which can stain laundry and/or plumbing fixtures, and which some well owners deal with through water treatment.