
Below 15, the level that requires action
2 public water companies list Tewksbury as a place they supply. The biggest is the Tewksbury Water Department, with about 31,342 people. The highest latest result among Tewksbury's water companies is 1 parts per billion, at the Tewksbury Water Department. None of the 2 with results was above 15 at its latest test. 1 found too little lead to measure.