Six Nations of the Grand River is expanding water testing after higher levels of strontium were found in groundwater wells. The expansion is part of ongoing water quality monitoring, and is not connected to the flooding that occurred in the territory on June 18.The Environmental Public Health Officer at Indigenous Services Canada will be conducting well water testing for: strontium, nitrite, nitrate and manganese. Testing will begin with the highest-risk households, with additional testing being offered to anyone that expresses interest, as capacity allows. Highest-risk groups within a household, include pregnant and breastfeeding persons, and infants and children up to 24 months old. Strontium can replace calcium in developing bones, and may lead to rickets, a bone disorder that can weaken or soften bones, stunt growth and cause bone deformities….