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Upgrade, New Construction, and Compatibility Requirements <br /> California Code of Regulations, Title 23, Division 3, Chapter 16, <br /> Sections 2631(1), 2635(d), 2636(f)(5), 2640.1, 2665(b), (c), 2666(b)(2), (e)(2), & (f), <br /> 2711(c), & 2712(b)(5) <br /> Upgrade Requirements <br /> Buried Single-Walled Piping <br /> Can buried single-walled piping be repaired or replaced on or after <br /> October 1, 2018? <br /> No. If any portion of buried single-walled piping requires repair or replacement, then the <br /> entire length of buried single-walled piping must be upgraded to double-walled <br /> continuously monitored piping. This requirement does not include vent, vapor recovery, <br /> tank riser, or safe suction piping. Repair is required when the piping either: 1) has <br /> caused a release of a hazardous substance from the underground storage tank (UST) <br /> system; or 2) has ceased to function properly and causes the UST system to be out of <br /> compliance with UST requirements. <br /> [References cited: California Code of Regulations, tit. 23, div. 3, ch. 16,' §§ 2611, <br /> def. of"Repair," 2636(a), 2666(b)(2) and Health and Safety Code, div. 20, ch. 6.7, <br /> § 25281.5(a)(4).] <br /> Line Leak Detectors (LLD) for Emergency Generator Tank Systems (EGTSs) <br /> Must underground pressurized piping connected to EGTSs be retrofitted with a <br /> LLD? <br /> Yes. USTs installed before October 1, 2018 defined as EGTSs in Health and Safety <br /> Code, division 20, chapter 6.7, section 25281.5(c) with connected underground <br /> pressurized piping must be retrofitted with an LLD in accordance with section 2636(f)(5). <br /> (For more information see the informational document Emergency Generator Tank <br /> System Line Leak Detector Requirements (September 2018, v 1.0).) <br /> [References cited: §§ 2636(f)(5)(A) & 2666(f).] <br /> Overfill Prevention Systems <br /> Can flow restrictors installed on vent piping (ball floats) used to meet the overfill <br /> prevention system requirement be repaired or replaced on or after <br /> October 1, 2018? <br /> No. After October 1, 2018, ball floats used to meet the overfill prevention system <br /> requirement cannot be repaired or replaced to meet the overfill prevention system <br /> requirement. USTs equipped with ball floats to meet the overfill prevention system <br /> requirement before October 1, 2018 may continue to use ball floats to meet the overfill <br /> 1 All citations are from California Code of Regulations, title 23, division 3, chapter 16 unless specified <br /> otherwise. <br /> Page 1 of 5 <br /> January 2019,v 1.0 <br />