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1. Prior to tank lining, a site assessment must be performed under the direction of Public Health Services <br /> Environmental Health Division (PHS-EHD), site mitigation unit. <br /> Site Assessment has been performed under PHS-EHD direction <br /> "-' Site Assessment has not been performed under PHS-EHD direction. Please contact PHS-EHD site <br /> Migation unit at(209)468-3449 <br /> 2. Reason tanks will be interior lined/repaired: <br /> •// Meet State/Federal upgrade requirements (submit PHS-EHD UST upgrade permit application with <br /> this application) <br /> Tank system failure, please describe: <br /> S,&-fig w0_\A cr�U�S c,w4Lc' \m A* <br /> 3. The following tests are required to be performed prior to lining to determine the structural integrity of the <br /> UST: <br /> Steel tanks <br /> Ultrasound The UST shall be closed in accordance with Article 7 Title 23 CCR if the <br /> nk' verage metal thi ness is less than 75 percent of the original wall thickness of if the tank <br /> has any of the listed defe is in Article 6, Title 23 CCR section 2663 (b) (2) (B)) <br /> Certification by a "Special Inspector" that the tank is structurally sound for tank lining and continued <br /> use: <br /> a. sandblast to whit metal <br /> _b. count number of ho s, splits, perforations, and other defects <br /> ----c. submit result to EHD <br /> Non-steel tanks, fiberglass <br /> Certification by a "Special Inspector"that the tank is suitable for lining. <br /> _a. interior walls cleaned by wipe down <br /> b. interior diameter measurements <br /> c. visual check for structural, tension, or compression problems <br />