
Below 15, the level that requires action
2 public water companies list Granby as a place they supply. The biggest is Aquarion-Simsbury Regional, with about 14,691 people. The highest latest result among Granby's water companies is 0.3 parts per billion, at Aquarion-Simsbury Regional. None of the 2 with results was above 15 at its latest test. 1 found too little lead to measure.