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PEI/RP1200 - 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 termina- 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- curing stick must remain the same for each water turer 's instructions . level measurement. Document the initial water 6. If the containment sump is found to have cracks , level measurement as measured from the bottom of the sump . Alternative measurement methods loose parts or separation of any joints or penetra- tion fittings, it is not considered to be liquid- may be used provided that the measurement to tight. This visually indicates a test failure. 1 / 16 (0 .063 ) inch can be made . 3 . Take all precautions to prevent the water level UTI 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 5 . 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- ment fittings to their pre-test operating con- Water Electrical figurations ; Level Junction 1 Box Electrical Conduit Water Product Level Piping Electrical Conduit Product FIGURE 6-5. The test fluid level in the UDC must be at Piping least 4 inches above the highest sump penetration or ON or lim sidewall seam . FIGURE 6-6 . To prevent leakage, check all penetration fittings before adding water to ensure they make a tight seal pei , org