In this guideManganese Is One PossibilityRhode Island Is Studying ManganeseHow Colonial Approaches It
Manganese Is One Possibility
Black or gray staining can be associated with manganese. Other materials can also create dark residue, so testing is more reliable than stain color alone.
Rhode Island Is Studying Manganese
URI and RIDOH began a statewide manganese-management project in 2026 focused on public systems and private wells.
How Colonial Approaches It
Colonial Water Solutions begins with the home and the water. We use on-site evaluation, collect certified-laboratory samples when necessary, explain the findings, and recommend treatment only after the problem is understood.