COMPLIANCE INFO_2019 - Laserfiche WebLink

Home Browse Search

Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities . Clean the spill bucket and examine it for dam- 6. 5.7. General . Containment sumps are liquid- PIN Navige, Make sure that it is free of cracks, loose tight structures designed to temporarily contain x r separation of the bucket fro the fill leaks or spills. In addition, containment sumps ps dpi =th pill= bucker yotify the often serve as the leak detection monitoring loca- VVoWnNoperator, tion for double-walled piping systems . Leakage �. ttachIte test apparatus t the test o from the primary containment typically flows by gravity inside the secondary containment to the 4mC nneline from t vacuu so ce to the sump, where it can be easily observed or detected WN N t app ara s . by a sensor. 5. If ill bu µ et is and to h =" e er � s, loose This section describes a hydrostatic test method. p oseparay on f the buret frm the fill There are vacuum test methods available for con- i e, it isot COered to b h m is ht. This P q g tainment sumps. Consult the manufacturer before v% wally in nates st fail�� . perimming a vacuum test. 6A Test P dur - �' N®TE: Follow the manufacturer' s instructions 1. S 11 wly apply ` vac of. 5 hes water when testing the interstitial spaces of double- cc umn to sr . bbue ' f erstiti space and walled containment sumps . el r se the coitro valy if 2454nA water col- un vacu canrt�bt a ea ain , the Will bucket 6. 52 Purpose. This section describes the prep- f k s the tint See a x B' . r essure and - a. � � P , aration and procedures to test the integrity of con v9uum Anversio s tainment sumps to ensure that they do not leak. � . S . they tune-m. erg nt dev c d record t � 6. 5.3 Description of Test. The containment th inial vacutiin 1 ; el shi wn on t eau e. t� g sump is filled to the proper level with water. The 3, er 1 ming*, regord the eninig v cuu level. water level is measured at the beginning and end of the test. Upo comp lon o the test,,, rplasbe va um, remoe�h -gest`a paratus and resre the ill 6. 5.E Test Equipment. Test equipment shall buck v to, is norm operating condicon. Y,: inclade: SA Pass/Fail Criteria. If the ding vacuum water; leve pis 12 inches water column or g` `eater, the spill measuring stick that is accurate to within 1116 bu Y et passes the test (0 .063) inch and of sufficient length; I tithe ending vacuum level is less than 12 inches stopwatch or other fume-measurement device water column, the spill bucket fails the test. capable of measuring a 1 -second increment. 6.S Containment Sump Integrity Testing. 6. 5.5 Preparation . 1. Care should be taken when conducting the test CAUTION : Gaining access to the contain- in the rain or during freezing weather eon& 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- testiing is complete. During the test, put don boxes, caps and risers (if present), and side- the covers and panels in a safe location vall seams for defects, damage or improperly where they are secure and Isolated from installed components. If there are loose com- vehicle and customer traffic. ponents (e.g., loose penetration fitting clamps or missing interstitial space caps), correct these items before performing the integrity test. If pei .org