Ariz. Admin. Code § R18-12-231 - Operation and Maintenance of Corrosion Protection

A. A corrosion protection system shall be operated and maintained to continuously provide corrosion protection to the metal components of an UST system which are subject to the corrosion protection requirements of R18-12-220 and R18-12-221 and to piping which routinely contains regulated substances and is in contact with the ground.

B. An UST system equipped with cathodic protection systems shall be inspected for proper operation by a qualified cathodic protection tester. Owners and operators shall ensure compliance with both of the following requirements:

1. A cathodic protection system shall be tested within six months of installation and at least every three years thereafter,

2. The criteria that are used to determine that cathodic protection is adequate as required by this Section shall be in accordance with the codes of practice set forth in R18-12-281(J).

C. An UST system with an impressed current cathodic protection system, in addition to meeting the requirements of subsections (A) and (B) shall be inspected every 60 days to ensure the equipment is operating in accordance with its design specifications.

D. For an UST system using cathodic protection, records of the operation of the cathodic protection shall be maintained in accordance with R18-12-234 to demonstrate compliance with the performance standards in this Section and R18-12-281(J) . These records shall provide the following:

1. The results of testing from the last two inspections required by subsection (B),

2. The results of the last three inspections required by subsection (C).

Notes

Ariz. Admin. Code § R18-12-231

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