“The Provincial Government’s free testing program for drinking water from private wells detected high levels of arsenic in 112 groundwater wells across N.L.” - Dr. Noori Saady

Check out this episode of CBC Newfoundland and Labrador’s The Broadcast with Paula Gale. Civil engineering professor Dr. Noori Saady talks about a project he’s working on that uses mussel shells to clean contaminated well water:

https://www.cbc.ca/listen/live-radio/1-122-the-broadcast/clip/16002763-a-project-uses-mussel-shells-remove-arsenic-water