The samples in this photo are from a room in the school. Although the tap is turned off, anyone annoyed by the absence of a functional sink could open the valve under the sink. The sample on the left is from the cold water side. Copper levels here are way over the standard. The sample on the right is from the hot water side. I am surprised that corrosion has not already caused a rupture in the plumbing.
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AuthorDavid Cappaert, Resident Scientist, Environmental Sciences Magnet school Entries in order
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