
Below 15, the level that requires action
6 public water companies list Deadwood as a place they supply. The biggest is Deadwood's water department, with about 1,156 people. The highest latest result among Deadwood's water companies is 6 parts per billion, at Pillar Peak. None of the 5 with results was above 15 at its latest test. 1 has no lead test results on file. 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.