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Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection .and Secondary Containment Equipment at LIST Facilities IF . Clean the spill bucket and examine it for dam- 6. 5.E General . Containment sumps are liquid. IMM qge. Make sure that it is free of cracks, loose tight structures designed to temporarily contain arts or separation of the bucket fro the fill leaks or spills . In addition, containment sumps pi '. f~ iespill bucket isatrtagiotify the after serve as the leak detection monitoring laca- %%%%%%own%r operator. tion for double-walled piping systems . Leakage 34 ttach�e test apparatus t the test o . from the primary containment typically flows by - gravity inside the secondary containment to the 4. C , nnect the line from t4d vacuumso ce to the sump, where it can be easily observed or detected ted appara by a sensor. 5. If ill b et is � und to hal-, crI �, loose �h This section describes a hydrostatic test method. p o epar on f the bucket freE the fill There are vacuum test methods available for con- pi e, it isnot co erect to b hqui Wight. This tainment sumps. Consult the manufacturer before I ; wally incates� st failure. perfrnming a vacuum test. 6. - Test Pr . �dure 4. NOTE; Follow the manufacturer's instructions 9., S ", wl a 1 vacuwrIof 1S in1, water when testin the interstitials aces of double- Y PP Y � - g p co umn to s i11-buc et lerstitia space and walled containment sumps . ell se the co tru a9d1v if l S-incl water col- o �n vacuum. c�t a a ,aln� the pill bucket 6. 5,2 Purpose. This section describes the prep. 'VV the Testa See pepchx B �ssure and aration and procedures to test the integrity of con- vapum conversior, s tainment sumps to ensure that they do not leak. 2 . StE thtime-treasure dent devic� d record v 6. 5.3 Description of Test . The containment I int i vac rim 1 'rel sir wn on t; gauge. sump is filled to the proper level with water. The 3. After 1 minuxe, rd the endiav euu level. waterlevel is measured at the beginning and end of v the test. € Uporcomplc ono the testleas e vaum, remoge t lest p tus and res re the ��ll 6. 5.4 Test Equipment. Test equipment shall i on.001 inciade: bucks it its no operating condi 6.4.Gass/Fall Criteria. If thefinding vacuum water; leveIs 12 inches water column or eater, the spill e measuring stick that is accurate to within 1116 bucket passes the test. (0 .063) inch and of sufficient length; Athe ending vacuum level is less than 12 inches stopwatch or other time-measurement device water column, the spill bucket fails the test. capable of measuring a 1 -second increment. 6.5 Containment Sump Integrity Testing. 6. 5.5 Preparation . 1„ Care should be taken when conducting the test CUTI No Gaining access to the contain- in the rain or during freezing weather condi- ment sump requires removing the lid, tions . cover or dispenser panel that is in place to protect the equipment in the sump. These 2• Remove and properly dispose of any liquid and components can be heavy. They may debris (leaves, sediment and trash) in the con- require special handling and more than tainment sump. one person to remove them . Use caution 3. Inspect the containment sump for damage . when moving and replacing them when Examine all penetration fittings , conduits, junc- testing Is complete . During the test, put tion boxes, caps and risers (if present), and side- the covers and panels in a safe location wall seams for defects, damage or improperly where they are secure and Isolated from installed components. If there are loose com- vehlele and customer traffic. portents (e.g., loose penetration fitting clamps or missing interstitial space caps), correct these items before performing the integrity test. If pei.org ID