1. (1) 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. (a) For well-logging applications with a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of WAC 246-244-080, 246-244-090 and 246-244-100.
   2. (b) For well-logging applications without a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of WAC 246-244-030, 246-244-080, 246-244-090, 246-244-100 and 246-244-240.
2. (2) Use of a tritium neutron generator target source, containing quantities not exceeding 1,110 MBq (30 curies) and in a well with a surface casing to protect fresh water aquifers, is subject to the requirements of this chapter except WAC 246-244-030, 246-244-110, and 246-244-240.
3. (3) Use of a tritium neutron generator target source, containing quantities exceeding 1,110 MBq (30 curies) or in a well without a surface casing to protect fresh water aquifers, is subject to the requirements of this chapter except WAC 246-244-110.

[Statutory Authority: RCW 70.98.050. WSR 03-12-062, § 246-244-115, filed 6/2/03, effective 7/3/03.]