(a) The relative priority for action needed at a facility investigated by the executive director for possible listing on the State Registry may be based on the following relevant factors:      
        (1) A superfund hazard ranking system (HRS). The Superfund HRS is a methodology designed to determine a numerical score for a facility based on the judgment of the executive director concerning various factors which may impact the public health and safety or the environment.        
          (2) Other relevant factors including:                      (A) community interests;                          (B) simplicity;                              (C) costs of investigation and remedial action;                                  (D) estimated time to complete the remedial action; or                                      (E) any other factor that the executive director determines is relevant and significant to the priority ranking of the facility.                    
                      (b) Upon appropriate investigation by theexecutive director, a facility will be assigned a Superfund HRS score. A facility may be proposed for listing on the State Superfund Registry if it is assigned a Superfund HRS score 5.0 or greater.                      
                        (c) The relative priority for action at facilities listed on the State Registry will be periodically reviewed and revised by the executive director as necessary to accurately reflect the need for action at the facilities.                        
                          (d) The commission shall annually publish an updated state registry identifying each facility and the relative priority for action at each listed facility.                          
                            (e) If a facility has been deleted in accordance with §335.344 of this title (relating to Delisting and Modifications) based, in whole or in part, on the facility being addressed pursuant to Chapter 333 of this title (relating to Voluntary Cleanup Programs), and the executive director determines that the facility is no longer being adequately addressed, thefacility shall automatically revert to the status the facility had immediately before the facility was deleted from the Registry in accordance with the Act, §361.189. No public meeting is required under this subsection.                           
     Source Note:        The provisions of this §335.343 adopted to be effective September 9, 1991, 16 TexReg 4624; amended to be effective July 22, 1998, 23 TexReg 7369.