1. (1) The owner must decommission a system when:

   1. (a) A sewerage system becomes available and the facility the system serves has been connected to that sewerage system;
   2. (b) The source of sewage has been permanently eliminated;
   3. (c) The system has been operated in violation of OAR 340-071-0132(1) and a repair permit and Certificate of Satisfactory Completion have not subsequently been issued for the system;
   4. (d) The system has been constructed, installed, altered, or repaired without a permit required in this division, and a permit has not subsequently been issued for the system; or
   5. (e) The system has been operated or used without a required Certificate of Satisfactory Completion or Authorization Notice and a Certificate of Satisfactory Completion or Authorization Notice has not subsequently been issued for the system.

2. (2) Procedures for decommissioning.

   1. (a) Tanks, cesspools, and seepage pits must be pumped by a licensed sewage disposal service to remove all septage.
   2. (b) Tanks, cesspools, and seepage pits must be filled with reject sand, bar run gravel, or other material approved by the agent, or the container must be removed and properly disposed.
3. (3) If, in the judgment of the agent, compliance with section (2) of this rule is not reasonably possible or necessary to protect public health, welfare, safety, or public waters, the agent may waive one or both of those requirements.

Statutory/Other Authority

ORS 454.625 & 468.020

Statutes/Other Implemented

ORS 454.615 & 454.655

History

DEQ 29-2025, amend filed 10/01/2025, effective 01/01/2026
DEQ 11-2004, f. 12-22-04, cert. ef. 3-1-05
DEQ 27-1994, f. 11-15-94, cert. ef. 4-1-95
DEQ 15-1986, f. & ef. 8-6-86
DEQ 5-1982, f. & ef. 3-9-82
DEQ 10-1981, f. & ef. 3-20-81