
Below 15, the level that requires action
6 public water companies list Harvard as a place they supply. The biggest is the Harvard Water Department, with about 1,422 people. The highest latest result among Harvard's water companies is 28 parts per billion, at Pine Hill Village Condominiums. 1 of them was above 15 at their latest test. 2 found too little lead to measure. 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.