9. For the purposes of an action for damage to water resources, the Government may make regulations determining(1) the conditions applicable to restoration to the original state or a state similar to the original state and to reparation through compensatory measures; and
(2) the elements to be considered and the scales or methods to be used in assessing or determining damage to water resources, including impairments of the ecological functions performed by water for the benefit of other natural resources and the public, and in determining the compensation payable for such damage.