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11-30-1999 2:57PM FROM P.3 0 is Note- The contractor's PHS-EHD approved plans of the UST installation shall be retained at the job site and must be shown to the PHS-EHD inspector upon request- la addition, the applicable fire department shall approve the UST immilador, prior to comxxiencement of work. .All appointments for inspections must be made at least 48 hours in advance. Below .are the minimum required inspections: a. Before installation, the tank ;hall be tested for tightness at the installation site LU accordance with the manufacturer's writter, guidelines. If there are no guidelines, the primar y and secondary containment shall be tested for tightness with air pressure between 3 and 5 pounds per -square inch, 1-a lieu of a pressure test, a vacuum expressed in inches of mercury in the interstitial space of the secondazy containment, is acceptable. The px=sure (or -vacuum in the interstitial space) shall bem&imibed for a minimum of 30 minutes. b. All now primary piping and secondary contaiament systems shall be rested for tightness after installation in accordance with tnanufacturer's guidelines. Primary pressurized piping shall be hydrostatically tested at 150 percent of design operating pressure or pneumatically at 110 percem of design operating pressure. If the calculated test pressure for pressurized piping is less than 40 psi, 40 psi shall be used as the test pressure. The pressure shall be maintained for a mininium of 30 minutes and all joints shall be soap tested. If there are no manufacmer's guidelines, secondary containment systems shall be tested using an applicable method specified in an industry code or engineering standard. All lines other than pressure piping shall be pressure tested at not less than 3 p.s.i. and not more the 5 p.s.i. for a minimum of 30 minutes and soap tested while under pressure. d. Contaimment sumps shall pass a 24 hour hydrostatic Ink test. e. The spill container shall be shown to be capable of draining liquid back into the fuel tanks. f. The monitoring system shall pass a functional test. Tice fum-nonal test shall consist, of the activation of the alarm via all monitoring probes/sensors. g. Final inspection and approval to operate gill be granted after the above requirements are satisfied and a hard copy of the tank integrity test (as -required by Section 2635 (a) (5)1 is submitted to the kispec:tor at the site. If you need further assistance, or wish to schedule an appointment to discuss the plan review or field insVetiou, please contact our Underground Storage Tank Staff at (209) 468-3427.