Oregon Administrative Rules
Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
Division 122 - HAZARDOUS SUBSTANCE REMEDIAL ACTION RULES
Section 340-122-0050 - Activities

(1) The Director may perform or require to be performed the following activities:

(2) These activities, and the scope of these activities, are to be determined by the Director on a case-by-case basis. The Director may determine that all, a combination of less than all, or only one of the above activities are necessary at a facility. (For example, based upon the results of the preliminary assessment, the Director might find that a remedial investigation and feasibility study are not necessary.) The Director may also determine that performance of the above activities shall overlap or occur in an order different than that set forth in section (1) of this rule. (For example, the Director might find that a removal must be undertaken during a remedial investigation.)

(3) Removals, remedial actions, preliminary assessments, remedial investigations, feasibility studies, and related activities shall be performed by any person who is ordered or authorized to do so by the Director, or may be performed by the Department.

(4) The Director may allow short-term degradation of the environment during a removal or remedial action or related activities, provided that the Director finds: