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PE URP1200 -12 there are items that must be repaired or replaced 6 . 5. 6 Test Procedure. (e. g . , deteriorated penetration fitting boots) , 1. Begin the test by adding water to the sump to a notify the owner/operator and obtain approval minimum of 4 inches above the highest sump prior to proceeding with repairs . penetration or sump sidewall seam, whichever is 4 . Test boots or secondary containment tegmina- higher. To compensate for sump deflection, the tion fittings must be present on the piping pen- water must be allowed to settle a minimum of etrating the sump . During testing, these fittings 15 minutes before taking the initial test measure- prevent water from entering the interstitial space ment. If the highest sump penetration or sump of double-walled piping. Without these fittings , sidewall seam is less than 4 inches from the top the integrity of the sump cannot be tested using of the sump, add water to within 1 inch of the this method . top of the sump. 5 . If interstitial monitoring sensors are present 2. Place the measuring stick vertically at the lowest within the containment sumps , temporarily point in the sump and extending above the water remove them before conducting the test. If the level in the sump to allow for an accurate mea- sensor is removed , reposition after testing to surement to be taken . The location of the mea- appropriate position according to the manufac- suring stick must remain the same for each water turer ' s instructions . level measurement. Document the initial water level measurement as measured from the bottom 6 . If the containment sump is found to have cracks , of the sump. Alternative measurement methods loose parts or separation of any joints at penetra- may be used provided that the measurement to tion fittings , it is not considered to be liquid- tight. This visually indicates a test failure. 1 /16 (0.063) inch can be made. 3 . Take all precautions to prevent the water level CAUTI® N• Water can damage electrical from being disturbed during the duration of the connections. Ensure that there are no test, components that can be damaged by the 4 . After 1 hour, document the ending water level addition of water to the sump. If such measurement, components are present, take appropriate S. Upon completion of the test: precautions when performing the test or use an alternative test method . remove all water and properly dispose of it according to Section 6. 7 ; • reinstall any interstitial monitoring sensors in their proper positions ; • return the test boots or secondary contain- "'`"'``' - meat fittings to their pre- test operating con- figurations ; Water Electrical Level Junction l Box Electrical Conduit Water Product Level Plping Electrical Conduit pm Product FIGURE 6-5. The test fluid level in the UDC must be at PlPlne least 4 Inches above the highest sump penetration or sidewall seam . FIGURE 6-6 . To prevent leakage, check all penetration fittings before adding water to ensure they make a tight seal. pei .org