
Below 15, the level that requires action
15 public water companies list Ulster as a place they supply. The biggest is the Ulster Water District, with about 5,500 people. The highest latest result among Ulster's water companies is 7.7 parts per billion, at Palmer Center Ugarc. None of the 15 with results was above 15 at its latest test. 2 found too little lead to measure. 13 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.