§ 2663. Interior Tank Lining Requirements.
23 CA ADC § 2663Barclays Official California Code of Regulations
23 CCR § 2663
§ 2663. Interior Tank Lining Requirements.
(a) Tank lining may be used to satisfy part of the upgrade requirements of section 2662 or to repair a tank pursuant to section 2661. However, a tank that has been repaired using the interior lining method may not be repaired a second time with the interior lining method. The evaluations described in subdivisions (b) and (c) of this section shall be completed before the lining of a primary container may be authorized by the local agency. The local agency shall deny the proposed lining if the owner fails to demonstrate that the lined primary container will provide continued containment based on the evaluations described in subdivisions (b) and (c).
(b) Appropriate tests shall be conducted by a special inspector who shall certify that the shell will provide structural support if the tank is lined. A copy of this certification shall be submitted by the owner to the local agency through the California Environmental Reporting System or a local reporting portal. The special inspector shall make this certification by entering and inspecting the entire interior surface of the tank and shall base this certification upon of the following sets of procedures and criteria:
(B) The entire tank interior shall be tested using a thickness gauge on a one-foot grid pattern with wall thicknesses recorded on a form that identifies the location of each reading. The tank shall be closed in accordance with Article 7 if the tank's average metal thickness is less than 75 percent of the original wall thickness or if the tank has any of the following defects:
(c) The owner or operator shall demonstrate to the satisfaction of the local agency, based on the tests conducted in accordance with subdivision (b) above, that a serious corrosion or structural problem does not exist. If the local agency or special inspector determines that a serious corrosion or structural problem exists, interior lining may be performed only if it can be demonstrated to the satisfaction of the local agency that new or additional corrosion protection will significantly minimize the corrosion and that the existing corrosion problem does not threaten the structural integrity or containment ability of the underground storage tank.
(f) Before being returned to service, any tank which has been lined shall be internally inspected by a coatings expert or special inspector for conformance with the standards under which the tank was lined. This inspection shall be conducted in accordance with section 2663(h) except for subdivisions (h)(3) and (h)(5).
(h) If a steel tank is lined for the purpose of satisfying the requirements of section 2662(c), or if any tank is repaired using the interior lining method, it shall be inspected by a coatings expert or special inspector within 120 months of lining and every 60 months thereafter. Written certification of the inspection shall be provided by the tank owner and the party performing the inspection to the local agency within 30 days of completion of the inspection. The inspection shall include all of the following:
(5) For steel tanks, testing the entire tank interior using a thickness gauge on a one-foot grid pattern with metal wall thickness recorded on a form that identifies the location of each reading in order to verify that average metal thickness is greater than 75 percent of the original wall thickness.
Credits
Note: Authority cited: Sections 25299.3 and 25299.7, Health and Safety Code. Reference: Sections 25292, 25292.1, 25296 and 25404, Health and Safety Code; and 40 CFR §§ 280.21 and 280.33.
History
1. Repealer and new section filed 4-5-94; operative 5-5-94 (Register 94, No. 14). For prior history, see Register 92, No. 43.
2. Amendment of subsections (a)-(b), (b)(1)(D), (b)(3)-(c), (h) and (h)(8)-(h)(8)(C) and amendment of Note filed 10-13-2016; operative 1-1-2017 (Register 2016, No. 42).
3. Redesignation and amendment of subsections (b)(2)(B)1.-4. as subsections (b)(2)(B)(i)-(iv), amendment of subsections (h), (h)(2) and (h)(8)(A)-(B) filed 8-27-2018; operative 10-1-2018 (Register 2018, No. 35).
This database is current through 5/10/24 Register 2024, No. 19.
Cal. Admin. Code tit. 23, § 2663, 23 CA ADC § 2663
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