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- 3 - <br /> not previously notified under other sections of the Health and Safety Code bears a <br /> reasonable relationship to the benefits to be gained from obtaining information about <br /> tank integrity. Information about tank integrity is needed so that leaking USTs can be <br /> identified. Therefore, owners/operators of UST systems not previously notified under <br /> other sections of the law, but which UST systems are found to be located within 1000 <br /> feet of a well, will be notified pursuant to section 25289, subdivision (b) and will be <br /> required to conduct testing within 18 months of notification. <br /> ELD means a test method that ascertains the integrity of an UST system. Therefore, <br /> regardless of the UST system type (i.e., single-walled, double-walled, or hybrid 3), the <br /> entire UST system (single-walled and double-walled) must be tested to fulfill the <br /> requirement. <br /> What is the process for implementing ELD? <br /> As described below, several groups are responsible for various aspects of the process <br /> for ELD implementation: <br /> SWRCB UST Program Responsibility: The State Water Board UST Program is <br /> responsible for notifying owners/operators of UST systems within 1,000 feet of a public <br /> drinking water well that they are subject to the requirements of ELD [Health & Saf. <br /> Code, § 25292.4, subds. (a) and (b) §25292.5, subd. (b); §25289, subd. (b); Cal. Code <br /> Regs., Title 23, § 2640, subd. (e)]. The SWRCB UST Program is also responsible for <br /> considering requests for reconsideration from those UST owners/operators who believe <br /> their facility is not subject to ELD [Cal. Code Regs., Title 23, § 2640, subd. (e)(2)]. (See <br /> below for additional information on requests for reconsideration). <br /> Owner/Operator Responsibility: Owners/operators of UST systems that meet the <br /> criteria for ELD must complete the following steps: <br /> • ELD Program Plan Approval: Have a written program of ELD (testing program <br /> plan) reviewed and approved by the local agency within six (6) months following <br /> notification by the State Water Board UST Program [Cal. Code Regs., Title 23, § <br /> 2644.1, subd. (a)(3)]. <br /> • ELD Test Implementation: Implement the approved program of ELD (testing <br /> program plan) at their facility. <br /> ■ For UST systems with a single-walled component, ELD testing <br /> must be performed within 18 months following receipt of notification <br /> from the State Water Board UST Program and repeated every 36 <br /> months [Cal. Code Regs. Title 23, § 2644.1, subd. (a)(3)]. <br /> ■ For UST systems without a single-walled component, upon written <br /> request by the SWRCB, one ELD test must be performed within 18 <br /> months from the date of notification [See Health & Saf. Code, § <br /> 25289(b).]. <br /> • ELD Test Notification: Notify the local agency at least 48 hours prior to <br /> conducting the ELD test unless this notification requirement is waived by the <br /> local agency [Id., § 2644.1,subd. (a)(4)]. <br /> 3 A hybrid UST system refers to a UST system comprised of both single-walled and double-walled components.Because they <br /> contain a single-walled component,hybrid UST systems that are subject to ELD must be tested within 18 months of notification and <br /> every three years thereafter,unless all regulated single-walled components are upgraded to double-walled[Cal.Code Regs.,Title <br /> 23,§2644.1,subd.(a)(1)]. <br /> California Environmental Protection Agency <br /> CJRecycled Paper <br />