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• <br />Hazardous Waste Tank System Assessments <br />Certification Requirements <br />Hazardous waste tank systems authorized pursuant to Permit by Rule, Conditional <br />Authorization, or Conditional Exemption are required to be assessed periodically. <br />Hazardous waste tank system assessments must be certified by an independent, <br />qualified professional engineer that is registered in the state of California in accordance <br />with California Code of Regulations (Cal. Code Regs.), title 22, § 66270.11(d), (as <br />referenced in Cal. Code Regs., title 22, §§ 66265.191 and 66265.192). It is the <br />Department of Toxic Substances Control's interpretation that a qualified engineer is one <br />whose license (Title or Practice) allows that individual to engage in the work of <br />assessing whether or not a tank system meets the operating requirements specified in <br />the applicable regulations. Further, the individual with the appropriate license must also <br />have expertise within the area they are practicing (Cal. Code Regs, title 16, division 5, § <br />415 [Practice within area of competence]). <br />All tank system assessments that are certified by a qualified professional engineer who <br />is registered in the state of California will be reviewed with these requirements in mind. <br />Reviews will be done to ensure assessments are complete (i.e., all relevant areas of the <br />regulations pertaining to tank system assessments are addressed), and that all relevant <br />information is included in the assessments (e.g., drawings, tank material and thickness <br />information, volume calculations, and so on). The Department of Toxic Substances <br />Control will also be looking at the qualification of the individuals signing certifications. <br />Civil, Structural, and Geotechnical registered professional engineers may sign for entire <br />systems. However, they may need to rely upon other professionals for specific areas of <br />competence. In cases where a Civil, Structural, or Geotechnical registered professional <br />engineer is not signing off for the tank system assessment, then all engineers <br />contributing to the assessment must sign. These other registered engineers can sign <br />off only for parts of a tank certification within their specific discipline. Certifications must <br />include the name and license number for each engineer who is approving a section or <br />sections of an assessment. <br />If you have any questions please contact Charles A. McLaughlin, Chief, State Oversight <br />and Enforcement Branch, at (916) 255-3642. <br />