
Below 15, the level that requires action
8 public water companies list Shell Knob as a place they supply. The biggest is Mo American Ozark Mtn Water Company 2, with about 583 people. The highest latest result among Shell Knob's water companies is 7 parts per billion, at Mo American Ozark Mtn Water Company 2. None of the 8 with results was above 15 at its latest test. 1 found too little lead to measure. 7 are small systems serving fewer than 500 people each, such as a mobile home park, a subdivision or a business with its own well.