R70-520-7. Water Vending Machine Operations

(1) An operator shall comply with the following source and construction requirements: (a) vended water shall be obtained only from a public water system that complies with the Department of Environmental Quality safe drinking water rules; (b) a water vending machine shall comply with the construction and performance standards of the National Sanitation Foundation (NSF) or the National Automatic Merchandising Association (NAMA); (c) an operator shall equip each machine with a monitoring device that shuts down the machine's operation if the treatment or disinfectant unit fails; and (d) a machine shall have a backflow prevention device for every connection to a water supply. (2) An operator shall maintain a water vending machine according to the following standards: (a) clean and sanitize the vending area and nozzle of each machine at least once every 14 days; (b) maintain a cleaning and maintenance log for each machine and make the log available for department inspection; and (c) perform microbiological sampling for total coliform at least every six months. (3) If a microbiological sample is positive for coliform, an operator shall immediately: (a) stop operation of the machine; (b) sanitize the machine; and (c) obtain a passing sample before resuming operation. (4) An operator shall display the following labeling and identification information: (a) the source of the water; (b) the specific method of treatment used, such as reverse osmosis, carbon filtration, or ultraviolet light; and (c) the operator's name, address, and telephone number for consumer complaints or service.