1. (1) Internally lined USTs without corrosion protection. An owner and permittee of an internally lined UST that does not have corrosion protection must have the UST internally inspected or assessed in accordance with a method that has been evaluated and approved by a third party to ensure the tank is structurally sound and the lining is still performing in accordance with all original design specifications. An owner and permittee must have the internal lining inspections or assessments conducted:

   1. (a) Within ten years after lining; and
   2. (b) Every five years thereafter.

2. (2) Internally lined USTs with corrosion protection. An owner and permittee of an internally lined UST that has corrosion protection must conduct internal lining inspections or assessments of the UST as required by section (1) of this rule. However, internal inspections are not required if the owner and permittee meet each of the following conditions:

   1. (a) The integrity of the UST was inspected or assessed before the addition of corrosion protection;
   2. (b) Written documentation of the inspection results and the internal inspection or assessment is provided to the department that demonstrates the work was conducted in accordance with a code of practice developed by a nationally recognized association, an independent testing laboratory or by a method that has been third party evaluated and approved: and
   3. (c) If the original integrity inspection or assessment was not conducted, documentation is not available or the documentation is not sufficient as determined by the department, an owner and permittee must complete at least one internal inspection of the tank lining using the method specified by American Petroleum Institute Publication 1631, “Recommended Practice for the Interior Lining of Existing Steel Underground Storage Tanks”.

3. (3) The owner and permittee must permanently decommission an UST system if any internal inspection determines that the UST is no longer structurally sound.

   [Publications: Publications referenced are available from the agency.]

Statutory/Other Authority

ORS 466.706 - 466.835, 466.994 & 466.995

Statutes/Other Implemented

ORS 466.746 & 466.765

History

DEQ 3-2008, f. 2-29-08, cert. ef. 3-10-08
DEQ 6-2003, f. & cert. ef. 2-14-03