
Under the legal limit of 15 ppb
2 public water companies list Martinez as a place they supply. The biggest is Columbia County, with about 124,763 people. The highest latest result among Martinez's water companies is 1.6 parts per billion, at Columbia County. None of the 2 with results was above 15 at its latest test. Small ones like Martinez Water Assoc. supply just their own grounds or street; most of Martinez gets its water from Columbia County. Your water bill names yours.
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