
Below 15, the level that requires action
11 public water companies list Douglas as a place they supply. The biggest is Douglas's water department, with about 13,684 people. The highest latest result among Douglas's water companies is 6.2 parts per billion, at Powell Mobile Home Park. None of the 10 with results was above 15 at its latest test. 5 found too little lead to measure. 1 has no lead test results on file. 10 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.