Is there lead in Granby's tap water?
0.5PPBparts per billion of lead in Macduffie School's water at the latest test, in 2025
Under the legal limit of 15 ppb
Under the legal limit of 15 ppb
6 public water companies list Granby as a place they supply. The biggest is the Macduffie School, with about 305 people. The highest latest result among Granby's water companies is 1.9 parts per billion, at the Granby Housing Authority. None of the 6 with results was above 15 at its latest test. Small ones like Hillside Heights of Granby supply just their own grounds or street; most of Granby gets its water from the Macduffie School. 5 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well. Your water bill names yours.
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