SECTION 252:616-9-3. Tank system requirements

  Tank system construction. The following minimum construction and maintenance requirements apply to all industrial tank systems regardless of wastewater classification:

(1)   Lateral lines. Tanks with lateral lines must have at least two compartments operated in series, with the discharge to the lateral lines from the final compartment.

(2)   Integrity testing. If the DEQ has reasonable grounds to believe that any pipes, fittings, or other parts of a tank system may be a source of contamination, the DEQ shall require the owner or operator to conduct tests demonstrating the integrity of the system and to provide the results of such tests to the DEQ. The integrity testing requirement shall be performed according to current techniques as set out in the National Fire Protection Association publication 329 (See "Recommended Practices for Handling Underground Leakage of Flammable and Combustible Liquids," NFPA 329, 1999, Batterymarch Park, Quincy, Mass.) or by other generally accepted procedures approved by the DEQ.

(3)   Percolation or soil profile tests. Before constructing an industrial tank system with lateral lines, conduct percolation tests or soil profile tests according to the procedure in OAC 252:641. The results of a soil profile test shall supercede the results of any percolation test completed in the same proposed absorption field area.

[Source: Added at 22 Ok Reg 1468, eff 6-15-05]