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t 4'AL <br /> 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 appiicabon) <br /> Tank system failure, please describe: <br /> r� r <br /> Lc-e-< t <br /> 3. The following tests are required to be performed prior to lining to determine the structural integrity of the <br /> UST: <br /> Ste�tanks <br /> Ultrasound Test(Note: The UST shall be closed in accordance with Article 7 Title 23 CCR if the <br /> tank's average metal thickness is less than 75 percent of the original wall thickness of if the tank <br /> has any of the listed defects 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 white metal <br /> b. count number of holes, splits, perforations, and other defects <br /> —_ c_. , Irnit result to EHD <br /> Non-steel tanks, fiberglass` ----- <br /> -^ Cartification by a"Special Inspector'that the tank is suitable for lining. <br /> 1 n� <br /> _a. interior walls cleaned by wipe down <br /> _b. interior diameter measurements <br /> c. visual check for structural, tension, or compression problems <br />