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ReccrrTitniandetl Practices for tkte Testing arta W( ificarticart of Spill, Overfill, Leak.. Uetecticrra and Secoridaty Containtrrent Equitantent at UST Facilities <br /> sibilityY of accidentally imposing it high vaactim r <br /> that could clauuar elite tank . <br /> T"he rise of the: valve <br /> is recommended because it hunts the vatcutun <br /> _ space , ) ; <br /> Tank Vacuum, a l�, Duration,that cstt tic applied to the interstitial <br /> latch lgallons urs <br /> v=ueuutu gau e with a range of fl inches to fill <br /> nwites 114-1 on(Itlatted in increments of 0") Inches ruler las i <br /> = t <br /> I m_. . <br /> 1--120 or less ; �rT ,otaO + 2 <br /> 20,000 1 <br /> toggle valve and vacuum hose , Steyr 6 — — -- - <br /> 000+ 2 <br /> stopwatch or other time� rneasurenient device <br /> Capable of atae<rsuring a 1 csecond inereillent ; <br /> 4 . 2 .3 Pass/ Fall Criteria . li thof-e is no loss in <br /> plumber ' s plug, "�rcttttttt level , no liquids are drat vir into tire. 41ter <br /> Test raced tr stitia space daring the tryst duration sho a In Table <br /> 1 . 1 , arnd the: lank secOnrlaarv c ontaa nantsttt arca has <br /> t Install the plumber ' s plug in the interstitial no additional fluid than al the start of the tc ;t . tht_ r <br /> risertsf below= any tees . the tank s conclatryt r c,ntatitstttc nt ijat c: s tltta test * <br /> 2 . Connect lira vacuum gaiuge , valve and lite- If there is aarfy v°art uuata least during lira t � t or lirlttids <br /> va etruna- `elcneraatintl devices to the fiftin on the; are draaevrt into the interstitial s}iaac'c , tiitsra lire tank <br /> plumber 's plug . The, valve should he- bt>twcen se cxc,ntlatry° crantarinraat: nt 1'aails the test1 <br /> the vatCuunt source inlet and tire; pressure: <br /> gauge,. l hs gauge should be between the valve 4 , 3 'lank Secondary Containment integrity 'Felting <br /> and aha.. fitting so it wilt read the interstitial vac- Liquid-Filled Test Method . <br /> alum when the valve is closed . The automatic <br /> vacuum shutolf` valve is located at the inlet of 4 . 3 .1 General . This test method tests the integ- <br /> the vacutrni - producink device and should he rity of the liquid- filled Interstitial space . 17here are ;a <br /> set at at nututaium of 1 i1 percent and no more. nunalier of v.rrial lc s that gilt dais test, stash as inter- <br /> than ? inches ilo above fire test of acutun . stitial space volume, temperature, water table and <br /> product level in the primary tank . Refer to Appendix <br /> . I~ nsurc- call connections are airtight , product <br /> For specific ntaanufaacturera test procedures . <br /> 4. Start the vacuum - general1nit device , and open <br /> thcs valve , 4 . 3 .2 Purpose. This general method is used to <br /> test the integrity of the liquid- filled secondary con - <br /> . ('ell tile varc: uuru to ltd inches Hg for liherglcass tainment of UST, <br /> tanks and 6 inches Hg for steel tanks . Close the <br /> j valve . X1 . 3.3 Description of Test . i Acluicl Is :added to <br /> the interstitial space of the tank and the level is <br /> G. Allow the vacuum it , staaliilize for as nurfinatun <br /> brought up lutea the interstitial riscr. '1-kae liquid level <br /> cal` 5 rnintates at this ssticcifaed v= aacauril level . If is monitored for :a specified cified period of time . It' the <br /> a st able vacuum cannot be m alritaailied test liquid level is, maintained , then the containment <br /> equipment shall be inspected for leaakaape , system has; passed the. test. <br /> Repeat steps =1 and 5) until at stable varcuran is <br /> atr hieved. If as stable vacuum cannot be main - 4 . 3.4 lest Conditions . The prinaaryt c°ontain - <br /> taainedt the tank: secondary containment integ - merit may contain any level dot produc t . Determine <br /> rityf test fails . whether the groundwater depth -is above the hottom <br /> 7 . When the vaacunnt level stabilizes , record tire; of the tank. Consult spe i1Tv ml nufacturer ' s. proce - <br /> va e" unt level and the test start Brite ; dures in regards to groundwater salad perforining the <br /> test . No hull: deliveries shad ( occur within f' lacaursa <br /> 8 . Observe the vacuum level for the period of prior tr-a Conducting or during the test . Net dlspens <br /> tithe shown in Table d - 1 . in =, In av occur dur rtat the duration of the test . <br /> . Record the iinatl time and vaaruurtt lcsvel . 4 . 3 . 5 Preparation . Determine the volume of <br /> 10 . Check the interstitial space for accumulation o1' the tank :and identity the test (tieing perforraae.d . <br /> i liquids , Tank volume information is available from facility <br /> I pei .or <br /> i <br />