General

General. (1) When site–specific or facility–specific information indicates that soil, sediment, groundwater, surface water, air or other environmental media at a site or facility may have become contaminated, persons identified under sub. NR 716.02 (1) shall conduct a site investigation consistent with this chapter. Unless sub. (2) is applicable, responsible parties shall use the factors in s. NR 708.09 (1) (a) to (n) and (2) (a) to (c) to determine whether or not a site investigation is necessary. (2) A site investigation is not required of the responsible parties at a site or facility, if: (a) After notification to the department of a hazardous substance discharge in accordance with ch. NR 706 , the department determines that no further action is required of the responsible parties, based on the factors in s. NR 708.09 (1) and (2) . (b) After completion of an immediate action, the department determines that no further action is required of the responsible parties, based on the factors in s. NR 708.09 (1) and (2) .