RiverStone Health Environmental Health Services inspects all pools, spas, and other water features in Yellowstone County that are open to the public. Inspections are geared toward verifying that operators of these facilities accurately test the water for levels of disinfectant (chlorine/bromine) and other parameters needed to ensure prevention of recreational water illnesses. Inspectors also verify that proper safety equipment and signs are present to keep the public safe from injury or drowning.