Rule 62-699.200 is being added to define words, phrases, and terms used in Chapter 62-699. Rule 62-699.310 is being amended to add classification and staffing requirements for water distribution systems; to clarify, change, and expand the list of treatment processes included under the various categories of domestic wastewater or water treatment plants; to increase staffing from ½ hour/day to 1 hour/day for Category I, Class C, wastewater plants with a capacity less than 0.05 million gallons per day (MGD); to specify that the cumulative time spent each week visiting a Category III, Class C, water plant with a capacity less than 0.25 MGD shall be equal to an average of at least 30 minutes per visit; and to specify that the cumulative time spent each week visiting a Category IV, Class C or D, water plant with a capacity less than 1.0 MGD or a Category V, Class C or D, water plant with a capacity less than 3.0 MGD shall be equal to an average of at least 15 minutes per visit. Rule 62-699.311 is being amended to add classification and staffing requirements for water distribution systems; to allow Class D plant operators to be the lead/chief operator of up to five water or wastewater plants if the plants are under the same ownership; to establish approval criteria governing staffing reductions for plants under an electronic surveillance system, automatic control system, or electronic control system, for plants operating at less than permitted capacity, and for multiple Category V water plants connected to the same distribution system; to allow the Department to require increased staffing where necessary to ensure compliance; and to require that Class C plants be visited by their lead/chief operator at least twice per month and that Class D plants be visited by their lead/chief operator at least once per month.