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Recommcndcd Practices far the Testing and Verification of Spill,Overfill, Leak Retac on and Secondary crntainmt%nt Fqutpmpnt at MT Farlli?in ti sibiliEy of a(:cicleErt;rlly 4111105nzg a high vaicUwn TABLE 4-1. that could damage Elie taiik.'I'he u�,e Elf[he vnly is recommended hecatise it limits the vacutim that can he aijYplied IG the interstitial Spam.); Tank 1lmuum, Capacity, Duration, Type 1nch65 Hg gallons hvu m ■ vacuum gatige with a range of 0 ft)chc=.s to 30 20.000 A. inches 1Ig graduated in increments of 0.5 inches FIbergass 10 Hg or less; 20,000� 2 Joggle valve and vacuum hose; 5#eei & t 2t},[30E1 i 20,U00+ ■ stopwa;eh or whux lime-111=0Lurnment device capable of measuring u L-second increment; 4.2.9 Pass/Fall Crl#erlati. If thexe ir, no lass in * plumber's phig. vacuum level, no liquids, arc drawn into the inter- 4.2.8 Test Procedure. sddarl spaw dLaing the tr-st duratiun shown io T'bk, S 4.1, and the tank secondary containment crew has 1. install thf, plistrlb&s plug In tilt interstitial no additional Iluid than at the start of the test. thrn riscr(s)below any tees. the tank scuoritlary curilainniont l=Sm Elie teat. 2. Cvllril:Ct the V84'ti m gauge:, valve and the, if there its any vacuum last during the,test or li uids vacuum-generating device to the fitting on the AM drawn iiito the intcrxtiliatl space, thou the tmyk plumbta,s plug. 'nit; Vnlvc: slxllll11 he hr-tweell secondary contabiment fails the test. the vacuum source inlet and the pre-murc gauge.The gauge sltnuld he between the valve 4,3 Tank SoCondiory Containment Integrity Testing and the ii(Ling 8oit wilt rcad 11Et.hrwrmiti41 vac- — Liquid-Fllled rest Method. uum when than valve Is closed. `Lyra automatic vaeuurrt shutoff valve is located at thr, Inlet of 4.3.1 QentieraL Thbs test method tests the integ- the vacumu-producing dcylcc and 8bould be LiLy cif the:liqustl-61inrl intex8titial Apam.There-Rre a set at a miaumum of 10 percent and no more number of variables that affeeL this test,such as inter- than 2 tncluca Hg ahave Ehc test vacuum. slitial spaces vohirnt-, waltj` labk: crud S. Ensure :ill conocc:tiuns are ;riirtiglat. prodW level in the phrmu-y tank.Refer1W Appendix A for spet:itic manufactureM3 test prwedtures_ 4. Start the vacuum-generrtting device, and open 4 the valve, .3.2 Purpose. This gan�al method it; used to test the integrity of the liquid-filied smondary con- S. full 111C VXt+ uuttl tO 10 inches Hg for fihefghms tainment Of fl i.S,r. tanks and 6 inches rfg for stect tanks.Close the vale(_ 4.3.3 Description of TeAt_ Liquid i-4 ar dr d to the interstitial space of the lank and the level is &. Allow the vacuum to s;Eribili�e for u minimumbraughtup into the iritersEitial riser.'Llte IiquicE level of S 11�i�tutcs att;ltiC spcc�etl Va3lCtrllrri le�riil. if is monitored for a speeifietl period of lime, if the a stable vacuum c;uirtcat be ma;rita;nracl, test liquid level is izyalntained, then the contaiamcEit aqulprneitir sha11 ha inspected for leEaknga. system has passed the test. Repeat steps 4 and 5 until astable vacuum iss acluevcd. If a gable vacuum Cannot be m;tin- 4.3A Test Conditims. Tlx: prLinsry cojiwhY- tained, the tank secondary contaiinmem iowg- mcnt may contain any IeveI of prodW. D=rrnlatie riEy teat fail% wheaher the URxmtiwaicr depth is xl txiw thc: holIom 7. When the vacuum level stabilises, mcord the of the tank. Consult specific manu€aicturer`s pracE=- Vacuum Ievel and the test start arm. dugs in regards to grnundwater and performing the test, No bulb de.liverios shall occur within 8 hours S. Observe the vacuum lovel fur the period of prior to conducting or during the tesi. No dispem- time showrE in'Tab le 4-1, ing may caW-tw' tttiring the dw-Ation of Ihu Iwl. S. Record the final time and vacuum level. 4.3.5 Prepara3tlen. Determine the volume of 10.C.hcck(lie h)terst lal spare for a ccumulation of the, tank and identify the test being prwfu=d. liquids. 7 zink volume iitforination is available from facility pei.org 0