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. I POIRP1200 - 12 6. 2. 1 Purpose. This method is used to test the 5. if the spill bucket is found to have cracks , loose integrity of single - walled spill buckets or the pri - parts or separation of the bucket from the rill mart' containment of secondarily contained spill pipe, it is not considered to be liquid-tight. This buckets , visually indicates a test failure . 6 . 2 . 2 Description of Test . The spill bucket is NOTE* If the fill cap is not included in the filled with water, The water level is measured at the spill bucket test and/or the cap is not tight, it beginning and end of the test. could be the source of potential fuel contami- 6. 2.3 Test Equipment , Test equipment shall nation from water intrusion . include : NOTE: Before permanently plugging, ensure water, that local regulations allow the drain valve to • measuring stick that is accurate to within 1 / 16 be permanently plugged. ( 0.063 ) inch and of sufficient length ; • plumber 's plug ( appropriate size, if used); 6. 2. 5 Test Procedure, • stopwatch or other time - measurement device 1. Add water to the spill bucket to a levet within capable of measuring a 1 -second increment . 1 . 5 inches of the top of the spill bucket . Allow the water to settle for 5 minutes before the initial 6. 2.4 Preparation. water level measurement is taken . 1. Care should be taken when conducting the test 2. Place the measuring stick vertically at the lowest in the gain or during freezing weather condi - point in the spill bucket and extending above the tions4 water level to allow for an accurate measure- 2. Remove and properly dispose of any liquid and meat to be taken . The location of the measuring debris ( leaves , sediment and trash ) in the spill stick must remain the same for each water level measurement . Document the inititwater level bucket., Clean the spill bucket and examine it for d damage, defects or improperly installed Campo- measurement as measured from the bottom of nents. if there rine loose components ( e .g . , loose the spill bucket . Alternative measurement me[h- band clamps or bolts ), tighten these items before ods may be used provided that measurement to conducting the integrity test. If there are items 1 / 16 ( 0 , 063 ) inch can be made, that must be repaired or replaced (e .g. , deterio� 3 . Take idl precautions to prevent the water level rated gasketstseals or drain valves ), notify the from being disturbed during the duration c)f the owner/operator. test . 3. Examine the fill cap and adapter fitting for 4. After i hour. document the ending water level loose, missing or damaged parts, and make measurement * necessary repairs. Complete any repairs before 5. Upon completion of the test , remove and di putting water in the spill bucket . Make sure s - drat pose of the water according to Section 6 . 7 , and the sett[ on the fill cap is present and in good dry the inside of the spill bucket before returning condition . The cap must fit securely and be Irak- dry to service . Light on the riser. The water level during the test typically will be above the crap, so a leaking cap 6, 2 . 6 Pass/Fall Criterla. If the water level has will result in u tailed test. As an alternative to a dropped less than 1 /8 (0. 125 ) inch, the spill bucket tight fill cap, use a plumber's plug in the fill riser passes the integrity test. if approved by the authority having jurisdiction ( AHJ ) and tank owner. If the water level has dropped 1 /8 (0. 15 ) inch or 4. The spill- bucket drain valve, if present , must greater, the spill bucket fails the integrity test . be leak-tight to pass the test . If it is not leak- 6 . 3 Spill Bucket Integrity Testing Vacuum Test tight, it may be possible to simply remove and , permanently plug the drain valve, However, if you choose to permanently plug , ensure that the 6. 3 , 1 Purpose, 'Phis method is used to test the local regulations allow this modification . integrity of single- walled spill buckets or the pri - pei;org