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PEIIRP1200-12 6.2.1 Purpose. This method is used to test the 6.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 fill wary containment of secondarily contained spill pipe, it is not considered to he 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. 'lost 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 1116 be permanently plugged. (0.063)inch and of sufficient length; ■ plumber's plug(appropriate size, if used); 6.2.5 Test Pracedure. stopwatch or other time-measurement device 1.Add water to the spill bucket to a level 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 rain or during freezing weather condi- point in the spill bucket and extending above the Lions. 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 bucket.Clean the spill bucket and examine it for measurement. Document the initial water level damage,defects or improperly installed compo- measurement as measured from the bottom of nents. If there are loose components (e.g,, loose the spill bucket.Alternative measurement meth- band clamps or bolts),tighten these items before ods may he 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 all precautions to prevent the water level I rated gaskets/seals or drain valves), notify the from being disturbed during the duration of the f owner/operator. test. S.Examine the fill cap and adapter fitting for 4.After 1 hour, document the ending water level loose, missing or damaged parts, and make measurement, necessary repairs. Complete any repairs before S.Upon completion of the test, remove and dis- putting water in the spill bucket.Make sure that the seal on the fill cap is present and in good pose of the water according to Section 6.7, and dry the inside of the spill bucket before returning condition.The cap must fit securely and be leak- it to service. tight on the riser.The water level during the test typically will be above the cap,so a leaking cap 6.2.6 Pass/Fall Criteria. If the water level has will result in a failed test.As an alternative to a dropped less than 118 (0,125)inch,the spill bucket tight Mill cap,use a plumber's plug in the-fill riser passes the integrity test. if approved by the authority having jurisdiction (AM and tank owner. If the water level has dropped 1/8 (0.125) 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 Method. permanently plug the drain valve, However, if you choose to permanently plug,ensure that the 6.3.2 Purpose. This method is used to test the local regulations allow this modification. integrity of single-walled spill buckets or the pri- pei,org