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PEI/RP1200-12 6.2.1 Purpose. This method is used to test the 6. SPILL BUCKET AND integrity of single-walled spill buckets or the pri- CONTAINMENT SUMP mary containment of secondarily contained spill TESTING buckets. 6.2.2 Description of Test. The spill bucket is 6.1 General. Spill buckets and containment sumps for filled with water.The water level is measured at the tank systems are neither intended nor designed for the beginning and end of the test. storage of petroleum products,but rather to contain small 6.2.3 Test Equipment. Test equipment shall leaks and spills for short periods of time. This section include: describes the procedures used to test the integrity of spill buckets and containment sumps to ensure that they do not • water; leak. • measuring stick that is accurate to within 1/16 6.2 Spill Bucket Integrity Testing — Hydrostatic (0.063)inch and of sufficient length; Test Method. • plumber's plug(appropriate size,if used); • stopwatch or other time-measurement device WARNING: Do not use fuels such as gaso- capable of measuring a 1-second increment. line, E85 or diesel as a test fluid because they present a serious fire and safety 6.2.4 Preparation. hazard. Gasoline vapors are flammable 1.Care should be taken when conducting the test and can explode if exposed to an ignition in the rain or during freezing weather condi- source such as a spark or open flame. If tions. a tank or containment area is not tight, using fuel as the test fluid will cause a 2.Remove and properly dispose of any liquid and release into the soil or groundwater. debris (leaves, sediment and trash) in the spill bucket. Clean the spill bucket and examine it for damage, defects or improperly installed compo- nents. If there are loose components (e.g., loose band clamps or bolts),tighten these items before conducting the integrity test. If there are items that must be repaired or replaced (e.g., deterio- water Level rated gaskets/seals or drain valves), notify the owner/operator. 3.Examine the fill cap and adapter fitting for loose, missing or damaged parts, and make necessary repairs. Complete any repairs before putting water in the spill bucket. Make sure that �-- the seal on the fill cap is present and in good condition.The cap must fit securely and be leak- tight on the riser.The water level during the test typically will be above the cap, so a leaking cap will result in a failed test. As an alternative to a tight fill cap,use a plumber's plug in the fill riser FIGURE 6-L The hydrostatic method of determining if approved by the authority having jurisdiction spill bucket integrity uses water to detect leaks. The (AHJ) and tank owner. measuring stick must be placed in the same location 4.The spill-bucket drain valve, if present, must at the beginning and end of the test period to ensure be leak-tight to pass the test. If it is not leak- accurate water level readings. tight, it may be possible to simply remove and permanently plug the drain valve. However, if you choose to permanently plug, ensure that the local regulations allow this modification. pei.org