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_ State Water Resources Control Page l of <br /> Home*Water Issues >>Programs*Ust*Leak Prevention*Lgo <br /> V§T.Poogran�.- Local Guidance (LG)_136-1 ______ __ _ __ ___ __ ___ ______ ______ _ <br /> LG 136-1 -INTERIOR LINING AND CATHODIC PROTECTION OF <br /> UNDERGROUND STORAGE TANKS(uSTm) <br /> March 14,1998 <br /> To: Local Agencies and Other Interested Parties <br /> xatank owners prepare mmeet the December ou' 1ua8deadline for upgrading single-walled tanks,we expect|uoai agenciesmreceive <br /> many requests for permits m useinterior lining d cathodic protectionuomeet those requirements. This LG/samended mmupdate the <br /> contractor's licensing requirements explained below. Changes are shown in bold italics. <br /> The purpose n[this letter iuououtline tank lining and cathodic protection requirements andor provide references to specific sectionsnfthe <br /> LIST regulations.For exact regulatory language,please refer to the California Code of Regulations(CCR),Title 23,Division 3,Chapter <br /> 10.Article 6 "Underground Storage Tank Upgrade and Repair Requirements" The numbers inthe boxes inthe margins refer msections <br /> orthe LIST regulations. <br /> There may botank lining requirements inaddition uuthose inthe LIST regulations. For example,the local air quality authority o,fire <br /> department may have their own requirements and should boconsulted. <br /> |hope this answers questionsyoumayhevemgovdingUSTinuorinr|iningongoothndiopmtenUun.OuestiunumoybudimoteduoDevid <br /> Mo|tryot(810)227+B32. <br /> einuae|y. <br /> [Original signed by:] <br /> Allan Patton,Manager for James GeorgeGiannupoulos <br /> Supervising Engineer <br /> Enclosures(3) <br /> [Enclosure 1] <br /> INTERIOR LINING AND CATHODIC PROTECTION OF <br /> uNDERGROuNDSTORAGETANKS <br /> FOLLOWING ARE ANSWERS TO COMMONLY ASKED QUESTIONS CONCERNING UPGRADING LISTS BY INTERIOR LINING AND <br /> CATHODIC PROTECTION: <br /> DO LINING MATERIALS AND PROCESSES NEED TO BE THIRD-PARTY LISTED OR CERTIFIED? <br /> YES.Tank lining materials and processes must bethird-party evaluated by anindependent testing organization inaccordance with <br /> voluntary consensus standards.Some ofthose standards include:VL1V5V( ).NLPxO31 (National Leak <br /> PmvanUunAoouoiaUnn).API 1O31 ( mlo»b��).ondUndbmnFieCade78'0. <br /> Anindependent testing organization tests products make sure they comply with voluntary consensus standards.The <br /> organization must conduct periodic inspections o,the production of products o,systems oomake sure that the product or system <br /> continues to meet appropriate standards.And the organization must have no financial interest in the product or system being tested. <br /> Tanks may be lined only in accordance with the third-party evaluation. For example,some evaluations limit the lining material and process <br /> to steel tanks only.Other lining materials and processes are limited to petroleum products only. <br /> IS A CONTRACTORS'LICENSE REQUIRED TO LINE TANKS? <br /> YES.The (CSLB)allows only those contractors who possess one of the following licenses to line tanks: <br /> 'wGeneral Engineering Contractor(4) <br /> 'wGeneral Conalong as the contract involves the use mfarleast 2mrmore unrelated trades mris <br /> subcontracted to the appropriate license. <br /> Limited Specialty/Service Station Maintenance(C-V1/D*0)~ <br /> 'wUmited8puoo|tyXSynU`obopmdumu(C' 1012} <br /> }ttp://www.waterbmardm.ca.gov/water-msues/Programs/ust/leak mn/Igs/136_l'shtml 2/17/2010 <br />