
Under the legal limit of 15 ppb
2 public water companies list Mayo as a place they supply. The biggest is Mayo Correctional Institution, with about 1,400 people. The highest latest result among Mayo's water companies is 2.2 parts per billion, at Mayo's water department. None of the 2 with results was above 15 at its latest test. Small ones like Mayo's water department supply just their own grounds or street; most of Mayo gets its water from Mayo Correctional Institution. Your water bill names yours.
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