R309-400-6. Public Water System Ratings

(1) The Division will rate a public water system based on the point thresholds shown in Subsection R309-400-6(3) or based on a written agreement with the director. (2) Each system rating is based on the total IPS points relative to a system's allotted threshold identified in this section. (3) The point thresholds for rating a public water system as Approved or Not Approved are different for each type of water system: (a) Community Water System - 150 points; (b) Non-transient Non-community Water System - 120 points; and (c) Transient Non-community Water System - 100 points. (4) The director may assign a rating to a public water system of: (a) Approved if its total IPS points are below the allotted threshold; (b) Not Approved if its total IPS points is equal to or exceeds its allotted threshold and does not enter into a formal agreement with the director to ensure a Corrective Action rating; (i) a system may be rated Not Approved if the director determines the system's water poses a serious or immediate risk to public health; or (c) Corrective Action if a current written agreement or other formal order between the Division and a public water system is executed to resolve noncompliance in accordance with a reasonable timeline that does not present an undue risk to public health. (5) An Unrated water system is a new or newly regulated public water system that is under a new system order and has not met the criteria to be rated Approved or Not Approved. The director can consider an unrated system as equivalent to Approved if the unrated system is in compliance with an executed Initial Order for a New Public Water System.