
Below 15, the level that requires action
4 public water companies list Lockport as a place they supply. The biggest is Lockport's water department, with about 23,100 people. The highest latest result among Lockport's water companies is 7.6 parts per billion, at Lockport's water department. None of the 4 with results was above 15 at its latest test. 1 found too little lead to measure.