|
RecomoMed Pomresfor it*Testing andWoration of W. DI Leak Detection and 5ecaidary ConbMmM[ fgWpmMt at UST Fa3&s - - - I O^, PEVRP1200-17
<br /> • vacuum tut apparatus ionic teal apparatus may 4. Connect the line from the vacuum sourr< to the sump, where it can be easily Observed or detected prevent water from entering the interstitial space
<br /> be available from thea ill-bucket manufxmru. ten a ms. by a oases- the
<br /> double-walled e s ug. Without thea firings,
<br /> p PPm the infagrity Of the sump cannot he toted using
<br /> It includes an air prcsnae regulator, a vacuum S. U the spill bucket is found to have maks, loose This wedon describes a hydrostatic test method. this method.
<br /> source, a vacuum gauge with a minimum 0-30 pairs or separation of the bucket form the fill There are vacuum test methods available for coo-
<br /> inch water column range, a tut luting and a pipe, it is nes considered to be liquid-light. This wine ent sumps. Consult the manufacturer before S. wft hin the monitoring sumps, to powers
<br /> control valve. The control valve is used to adjust vimall mdiutu a test failure. performing a vacuum lest. within the containment sumps, temporarily
<br /> [tie vacuum level.); y remove them before conducting the rut. If the
<br /> 8.4.5 Test Procedure. I NOTE: Follow the manufactow
<br /> rer•s inscti°ns sensor umo
<br /> removed, reposition after testing to
<br /> • stopwatch w other tirrro-measmemem device I when testing the interstitial spaces of double- appropriate position awarding to the mmufao-
<br /> capable oCmeasuring a 1-wound increment. 1. Slowly apply a vacuum of 15 inches water walled containment sumps. micros instructions.
<br /> column to the spill bucket interstitial space and I 6, If lheconla'vunenl sump is (d to have cracks,
<br /> close the control valve. If a 15-inch water col-
<br /> WARNING: Usaonlyanalroparatedv���• 8,5.2 Purpose. This wcdon describes theprcpa- Ioseparts or scparabw ofmyjointswperseba-
<br /> umn vacuum cannot be Stormed. the spill bucket ren source or a vacuum pumppowered by t radon and procedures to ten the integrity of con• tion finings, it is raw considered to be liquid-
<br /> an
<br /> falls the test See Appendix B for puswe and
<br /> wills
<br /> expbsbc mot rs motor. Vacuum reno pompe tainmen[ sumps to ensure that they do raw leak. tight 7hU viauany indicates a W[ failure.
<br /> with electric motors that are not expo vacuum concern°ms. i
<br /> slo"rool may Ignite flammable vapors. 2, Start the tiro niurummcm device and record i 8.5.3 Description of Test. The conteinmurt
<br /> If a portable air compressor Is used, It the initial vacuum level shown on the gauge. sump is filled to the proper level with water. The CAUTION: Water can damage electrical
<br /> should b located at leant 20 foot away water level is measured at the beginning and end of connections. Ensure that there re no
<br /> hom the rocated at [ or or 0 feet
<br /> any 3. Attu 1 minute, record the ending vacuum level I the test components that can be damaged by the
<br /> addition of water
<br /> Claes 1, Division l area. Upon compledw of the tut, release lhevac°um, components are press the Bump.ent, take appropriate
<br /> If such
<br /> remove the rest apparatus and restore the spill B.SA Test Equipment Teat equipment shall comp
<br /> include:to its normal operating condition. use
<br /> precautions when performing the feet or
<br /> qty„ use an alternative tart method.
<br /> saA -a
<br /> 6,4,6 Pass/Fall Criteria. If the ending vacuum • water,
<br /> level is 12 inches comer win= or greater, the Spill • measuring rick that is accurate to within 1/I6
<br /> bucket passes the lest (0.063) inch and of sufficient length;
<br /> • stopwatch or other tivwmntasuremenl device a 05
<br /> If the coding vacuum level is less than 12 inches capable Of measuring a 1-second Increment.
<br /> water column, the spill bucket fails the test
<br /> 6.6 Containment Sump Integrity Testing. e.ti.5 Preparation.
<br /> M
<br /> 1. Case Should be taken when conducting rise test SIRCAUTION: Gaining access to the contain- in the min or during freezing weather condi-
<br /> ment sump requires removing the lid, tons.
<br /> cover or dispenser panel that Is In place t° 2. Remove and properly dispou of my liquid and
<br /> protect the equipment In the sump. These debris Orates, Sediment and cash) In the con- °•'u
<br /> components can be heavy. They may [ainment sump.
<br /> require spacial handling and more than 3. Inspect the containment sump for damage.
<br /> FIGURE 6i. Check lines and connections to ensure one person to remove them. Use caution Examine all penetration filings, combits, jure- FIGURE 86. The fest fluid level In the under dlspensu
<br /> that they are Mak-fight before stating Use test when moving and replacing them when
<br /> testing Is complete. During the test, put don boxer, ups and risers damage
<br /> i anoperly contest sunir penemtrsnorsidesst4 tomes above the
<br /> wall scans tw details, damage or improperly h/ghest sump DenematfOn orsldexall seam.
<br /> the covers and panels In a safe location installed components. If there arc 100u co113-
<br /> 8.4.4 Preparation. where they are secure and Isolated from nests
<br /> Ie (e.g., loon penetration fitting clamps
<br /> vehicle and customer traffic. 8.5.6 Test Procedure.
<br /> i Remove and properly dispose of my liquid and or mining interstitial space ups), cortin these
<br /> debris (leaves, sediment and fresh) in the spill items before performing the Integrity rest. If i Begin the test by adding water to the Sump to a
<br /> bucket 8.5,1 General. Containment sumps aro liquid- them are items that must be repaired or replaced minimum of 4 inches above the highest sump
<br /> 2. Clean the spill bucket and examine it for dam- light structures designed to temporarily tannin r (e.g., dererioated penetration fitting boots), pewtsation or sump sidewall seam, whichever is
<br /> age. Alake sure that it is free of cracks, Iwo leaks w spills. In addition, containment Sumps notifythe owneoropmtor and obtain approval higher. Tb compensate fors p deflections the
<br /> arts w separation of the bucket floor the fill often wave as the leak detection monitoring lata- prior proceeding g withrepairs. water list be allowed to settle a minimum pf`- ,
<br /> P eP _ - 15 miautes bel taking the initial t nmeasuro- .
<br /> don for double-walled piping systema. Leakage 4. Tut boots or second containment famsim-
<br /> pipe. tithe spill bucket is damaged. notify the mem. H the highest sump penetration or scrip
<br /> from We Primary containment typically rows by ties finings must he present on the piping poo- r
<br /> owner/the test - sidewall ream less than 4 taches from the to q
<br /> gravity inside the secondary containment to Use canning the sump. During testing, dseje finings
<br /> 3. Attach the test apparatus to the test port -
<br /> pel.org pel.org
<br /> FEB 1 2020
<br /> _- - - - --- - _ - - --, - ENVIRONMENTAL FIGALTW
<br /> RemmmeMed Practices for theTesdng and verification of spill mast leak Diversion and Secondary Distributor Equipment at UST hedges PUTP1200-17
<br /> -descriptlon of rInspection. After a pro-
<br /> of the Sump, add water to within l inch of the 6.6 Accelerated Precision Hydrostatic Test for Spill 7 , UST OVERFILL liminary inspection ofthe automatic shuuffinstal-
<br /> top of the sump. Buckets and Containment Sumps. Histrionic Pesci- ladon, the drop tube is removed from the tank. The
<br /> 2. Plam the measuring stick vertically at the lowest non lest equipment can he utilized to test spill buckets EQUIPMENT automatic shutoff is checked fes proper operation,
<br /> pmintin he aumpa ilex ending above We water and cwuinmcnt sumps. It incorporates mom wnsitive VERIFICATIONS and its placement is measured m verify that it is
<br /> vel n the sump to allow Car an awmare mea- equipment that permits a rest to be conducted in a shorter INSPECTION AND property formed to completely shot off flow whm
<br /> lei
<br /> level
<br /> nt in he taken. lose Interim of the mea- period of time. The procedures use the same tut fluid and the lack is o most than 95 percent fait.
<br /> surfing stick mus remain the Saint foresch water resat the same volume anther methods wtiined in this TESTING
<br /> levet measurement. Document the initial water clupu-'llsemanufxturerofthemeasurcmemcquiprwnl 7.1.4 Preparation. Refer to the tank mmufac.
<br /> gal-
<br /> level measurement as rwuurat from the bottom should specify the precision and duration of the fast and Although the effativeoess of overfill peventiw devices imet's calibration than for the capacity in gal-
<br /> le the ser Alternative sired from t methods the paslfati criteria. However, pass/f ail criteria Should can be tested by attempting to overfill an underground Ions, the diameter and the volume of product with
<br /> �' nil be less stringent than those prescribed for the l-hour storage lack (UST)with product and determininghowwell respect topmdeclevel-
<br /> my be used provided that the musurcmmt to
<br /> tut in Sccifw 6.5.7. the device functions, olds approach is rad recommended.
<br /> 1/I6 (0.063) inns cars he made. ifIf the automatic shutoff device has a Boat that
<br /> Any malfunction in the overfR prevention device could
<br /> 3. Take all precautions to prevent the water f vel rfhe data Sherri ippen ix D. 6.2 w6.5 may beuwd [w this extends from the imp robe in the sbuion offcif (clhe float
<br /> test Refer to Appendix D. result in a product release that could result in a threat to positions verify the pope orientationcif the that
<br /> from being disturbed during the duration of the PIS public health and safety and mvimnmraul damage.
<br /> mechanism 7befloa[ mechanism should be orient-
<br /> tat. 6.7 Proper Handling of Test Uqulds. Test liquids
<br /> Federal UST Sulu require that oven prevention ed awayfr°tmmyobstructions (ball float, eubmers-
<br /> 4. After I ham, document 0w eliding water level must be handled property. Check with the AID regarding equipment automatically restrict flow or Start the transfer ible turbine pump (STPj, tank well, tank gauge
<br /> measurement. requirements. operator when the link is no mom than 90 percent hill Pte• els.) If the movement of the float mnwba-
<br /> 6. Upon completion of the test --r - or shut off flow into a tank when it is no more: then nism is restricted, it will nes function as designed.
<br /> • remove all water and property dispose of it ' 1 95 pucenl icti Otho w durialternang a to prevent minuteoverfills Use this procedure in conjunction with the nano-
<br /> according to Section 6.7; on the restriction of flow during a delivery 30 minutes facturer's installation and maintenance instruo-
<br /> " m�. prior to overfilling; alerting the operator I minute beton
<br /> • reinstall my interstitial monitoring Sensors in overfilling may occur, or automatically shutting off flow flow.
<br /> their proper positions; into a tank so that one of the fittings touted on top of 7.1.5 Inspection Equipment, Test equipment
<br /> • retain the test bods or secondary containment the Sank are exposed to product due to overfilling, shall include:
<br /> fittings to thehpre-test operating configurations; , l The PEI Overfill, Release Detection and Release • tools for removal of the dmp tube;
<br /> • inspect and reinstall all containment sump lids, , p� Prevention Equipment Teesdng Committees hu written ape measure;
<br /> gaskets and covers. ; the recommended practices for automatic shutoff devices
<br /> it c` to reflect that the devices must be Set to shut off flaw • [cots for inspection of the automatic shutoff.
<br /> whim she tank is m moa than 95 percent full, and flow 71.6 Inspection Procedure,
<br /> =friction and overfill slow device most automatically
<br /> restrict flow or alert the transfer operator when the tank 1. Remove the drop tube from the link.
<br /> era .R' o no mom than 90 percent full. This approach reflects the FIGURE 67. The tut BNd level In the tenksum0 must mom conservative application of the rules 2. Poet mechanic for my da shut off valve and
<br /> be at feast 4 Inches above the higfaest sump pererra float mechanism for any damage or corrosion
<br /> tlw wsklexall seam. 7.1 Automatic Shutoff Devices. that inhibits the functionality of the device, and
<br /> remove my debris and foreign objcds.
<br /> _ 7.1.1 Cenral. Automatic shutoff devices,
<br /> P;+v -� mmelimu Wled flappers orflapper valves, am 3. Afanually move the float mechanism to ensure it
<br /> a ` an integral part of the drop tube assembly installed move fatly.
<br /> s within the tank fill xfser. They oe designed to 4. With the float mechanism in the shutoff (cloud)
<br /> ,t
<br /> FIGURE 66. To prevent leakage, check all penetradon t initially restrict and subsequently completely ohm position, vimally inspect the drop robe and
<br /> fittings before adding water to ensure they make a tight i s off now when product has reached predetermined verify that the shutoff valve is released and will
<br /> Sul. .l r levels during a delivery. Automatic sbutoff valves move into the product flow path.
<br /> t { FIGURE 68. Mea- need tmheproperty positioned and operate frttlyto S. If possible, verify that the bypass valve in the
<br /> ,'-i� Suring slicks wed control flow and prevent tank overfills.
<br /> 8.5.7 Pass/Fall Criteria. If the water level tQ! to measure the drop tube is open and free of blockage,
<br /> changeslessthan l/g (CM) incb, Necontainmenl tib, _ we rlevelshould 7.3.2 Purpose. The purpose: of ibis inspection So Ifproblems with the shutoff valve are found and
<br /> sump passes rhe integrity test a i f be securely mount. is to verify We mtomatic shutoff valve is installed defective components aced repair or replace.
<br /> )£the watulerelchanges IB 0.125 inns or at- ad to ensure that property, operates as designed and is set to coot ro
<br /> mens, notify the appropriate Person.
<br /> ( ) '4 � . they do not moa pletely shut off now when the rank is no more than
<br /> u, the containment sump fails the integrity tut during the test 95 percent full.
<br /> ® pel.org
<br /> pel.org
<br />
|