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BUSINESS OFFICES Fax : 209-9432811 Mar 11 0923 <br /> t 2. [x3NTRACTOR TESTING OF SECONDARX CONTAINMENT <br /> r <br /> The work area will be barricaded and workers will wear high visibility vests. The sumps,U00 anl! <br /> 3 Will bUdwts will be cleaned. Assume confined space entry will be required. Testing will be' <br /> 11 <br /> Oba tteted as follows: <br /> i s UST annular space testing <br /> a r 1. Remove annular sensor. <br /> 2. Apply a vacuum between 10"and 15"of Hg column (in accordance with <br /> specifications). Disconnect vacuum plump. The vacuum equipment must be <br /> with an operational vacuum regulator to More the tank isnot over-evacuated. <br /> ' 3. Wait ID minutes to allow stem 's <br /> to <br /> t.. . come to 'librium. Record equilibrium ry equr equ hbtrum 1(aGutmtt <br /> 4. Allow for a 60 minute test during which the vacuum is not to fall mare than 20' xig <br /> € column. Record final vacuum reading. If the vacuum*11 less than 2".cer*ti ntblr f <br /> l secondary on Exhibit B. <br /> t S. If the vacuum cannot be applied successfully, tighten all bung connections and rgapjly <br /> t > <br /> vacuum. <br /> 6. If vacuum still cannot be applied, notify the Bakersfield Fire Depwment, Oflice`af <br /> h Environmental Services immediately for further action. <br /> Follow UST annular space testing,release vacuum, replace annular sensors and seal test rise►., <br /> b. Secondary Piping Testing <br /> 1, Attach and tighten teat boots in tubine and UDC sumps, , <br /> 2. For AO Smith and Aareron piping apply 5p* (For other piping follow manufaettutht <br /> t ' specifications). Record starting pressure and time. (Exhibit 13). <br /> 3, Disconnect pressure tank. <br /> 4. AIlow for a 60 minute test during which the pressure may drop to 4.8 psrg Rettond <br /> final pressure and time on form. If the final pressure exceeds 4.799 psig, certify ' <br /> x� on form. <br /> .' S. If:piping;will not hold,pressure,troubleshoot,repair and re-sten test. `s <br /> { 6. Ifpressun still cannot be held,notify the Bakersfield Fire Department, Office of <br /> Environmental Services immediately for Anther action. <br /> 7. Document all repairs. " <br /> ` ? After testing, release pressure on the litres. Leavethe test boots attached for sump testing <br /> c. Turbine Sumps(Site may operate during testing) <br /> o.s t <br /> 1. Each sump will be filled with water to 2"above the highest penetration unless the <br /> t., electrical conduit is below that level*. <br /> t F <br /> 'To avoid patentiirlly getting water into the electrical conduit the sump will only be <br /> Milled to the bottom of the J--box. However, at a minimum the sump will bepilleci'with <br /> water to 2'above the primary piping, <br /> 2. A calibrated,third party approved, testing probe capable of measuring water level <br /> fluctuation between 0.01" and 0.001",will be installed in the sump. <br /> gR ` <br /> '3. The water level fluctuation will be measured for 12 minutes, Water level <br /> r measurements will be recorded at Ieast every 3,minutes. <br /> $ 4. Ifafter 12 minutes, the water level has decreasod less than 0.002" the test is pasdr►g <br /> IS. Certify the sump. <br /> i. ? 6. If the water level fluctuates more than 0.002"in 12 minutes the test may be extetidbd 3Q, <br /> Ft 30 minutes, �r <br /> 7. If after 30 minutes,the water level has decreased less than 0.005" the test is p804, y <br /> Certify the situp, <br /> rs ' <br />