SECTION 165:26-2-55. Underground piping materials

(a)   All new underground product piping and ancillary equipment installed at a new facility or existing facility must have the following characteristics:

(1)   Non-metallic;

(2)   Double-walled;

(3)   A tracer locator wire must be installed in all piping trenches; and

(4)   Dispenser sumps must be installed and monitored with sensors as per 165:26-3-20.2.

(5)   Piping transition sumps must be installed and monitored with sensors if the interstice area of connecting piping cannot be connected in an approved manner.

(b)   Existing facilities that are replacing the lesser of twenty feet (20') or fifty percent (50%) of underground piping must upgrade pursuant to (a) of this Section. If a metallic line fails due to structural failure or corrosion, all metallic product lines at the facility must be removed, and cannot be repaired.

(c)   Existing facilities that are making any alteration to a fuel island when concrete removal is required must install dispenser sumps and monitor as pursuant to 165:25-3-6.29.

(d)   Existing facilities that are replacing dispensers must install dispenser sumps and monitor as pursuant to 165:25-3-6.29 if modifications are made below the dispenser cabinet.

(e)   Tracer locator wire is not required to be installed in existing piping trenches containing piping which otherwise meets the requirements in subsection (a) unless the trench is opened to repair, move, or replace the piping.

(f)   Existing facilities that are replacing aboveground storage tanks must replace all single walled piping per (a) of this section.

[Source: Added at 21 Ok Reg 2079, eff 7-1-04; Amended at 22 Ok Reg 1752, eff 7-1-05; Amended at 23 Ok Reg 144, eff 10-6-05 (emergency); Amended at 23 Ok Reg 2297, eff 7-1-06; Amended at 31 Ok Reg 1010, eff 9-12-14; Amended at 35 Ok Reg 1010, eff 10-1-18; Amended at 36 Ok Reg 576, eff 8-1-19]