
Below 15, the level that requires action
11 public water companies list Dover as a place they supply. The biggest is Reagans Mill Water Company, with about 1,225 people. The highest latest result among Dover's water companies is 15.8 parts per billion, at Powell Road Mobile Park. 1 of them was above 15 at their latest test. 1 found too little lead to measure. 8 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.