Ariz. Admin. Code § 18-12-244

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-12-244 - Methods of Release Detection for Piping

A. An automatic line leak detection method for piping used to meet the requirements of R18-12-241 which alerts the operator to the presence of a leak by restricting or shutting off the flow of regulated substances through piping or triggering an audible or visual alarm may be used only if it detects leaks of three gallons per hour, at 10 pounds per square inch line pressure within one hour. An annual test of the operation of the leak detector shall be conducted in accordance with R18-12-240(A)(3);

B. A periodic line tightness test of piping may be used as a method of release detection for piping for the purpose of meeting the requirements of R18-12-241 only if it can detect a 0.1 gallon per hour leak rate, at one and one-half times the operating pressure.

C. Except as described in R18-12-241(A), any of the applicable tank methods described in R18-12-243(E) through (I) may be used as a method of release detection for piping for the purpose of meeting the requirements of R18-12-241 if they are designed to detect a release from any portion of the underground piping that routinely contains regulated substances.

Ariz. Admin. Code § R18-12-244

Adopted effective July 30, 1996 (Supp. 96-3). Amended by final rulemaking at 25 A.A.R. 3123, effective 1/1/2020.