OAR 333-113-0325: Precautionary Procedures in Logging and Subsurface Tracer Studies: Energy Compensation Source

The licensee may use an Energy Compensation Source (ECS) which is contained within a logging tool, or other tool components, only if the ECS contains quantities of licensed material not exceeding 3.7 MBq (100 microcuries). (1) For well logging applications with a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of 333-113-0120, 333-113-0125 and 333-113-0130. (2) For well logging applications without a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of 333-113-0010, 333-113-0120, 333-113-0125, 333-113-0130, 333-113-0150 and 333-113-0501.