Designation:E1990−16StandardGuideforPerformingEvaluationsofUndergroundStorageTankSystemsforOperationalConformancewith40CFR,Part280Regulations1ThisstandardisissuedunderthefixeddesignationE1990;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversinformationforevaluatingtanksys-temsforoperationalconformancewiththeFederaltechnicalstandards(includingthefinancialresponsibilityrequirements)forundergroundstoragetanks(USTs)foundat40CodeofFederalRegister(CFR)Part280.1.2Thisguidedoesnotaddressthecorrectiveactionre-quirementsof40CFRPart280.1.3TotheextentthatatanksystemisexcludedordeferredfromthefederalregulationsunderSubpartAof40CFRPart280,itisnotcoveredbythisguide.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1FederalStandards:2Title40CodeofFederalRegulations(CFR),EnvironmentalProtectionAgency,Part280,TechnicalStandardsandCorrectiveActionRequirementsforOwnersandOpera-torsofUndergroundStorageTanks(UST)3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1corrosionprotection—topreventthedegradationofamaterialduetoareactionbetweenthematerialanditsenvironment.3.1.2implementingagency—EnvironmentalProtectionAgency(EPA),or,inthecaseofaStatewithprogramapproval(orpursuanttoamemorandumofagreementwithEPA),thedesignatedStateorLocalagencyresponsibleforcarryingouttheUSTprogram.3.1.3overfill—exceedingthecapacityofthetank.3.1.4overfillprotection—adeviceusedtopreventatankfrombeingoverfilledwhenproductisbeingaddedtothetank.3.1.5releasedetection—amethodtodeterminewhetherareleaseofaregulatedsubstancehasoccurredfromtheUSTsystemintotheenviro...
