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i • - 3 - other sections of the law, but which UST systems are found to be located within 1000 feet of a well, will be notified pursuant to section 25289, subdivision (b) and will be required to conduct testing within 18 months of notification. ELD means a test method that ascertains the integrity of an UST system. Therefore, regardless of the UST system type (i.e., single-walled, double-walled, or hybrid 3), the entire UST system (single-walled and double-walled) must be tested to fulfill the requirement. What is the process for implementing ELD? As described below, several groups are responsible for various aspects of the process for ELD implementation: SWRCB UST Program Responsibility: The SWRCB UST Program is responsible for notifying owners/operators of UST systems within 1,000 feet of a public drinking water well that they are subject to the requirements of ELD. [Health & Saf. Code, § 25292.4, subds. (a) and (b) §25292.5, subd. (b); §25289, subd. (b); Cal. Code Regs., Title 23, § 2640, subd. (e)] The SWRCB UST Program is also responsible for considering requests for reconsideration from those UST owners/operators who believe their facility is not subject to ELD. [Cal. Code Regs., Title 23, § 2640, subd. (e)(2)] (See below for additional information on requests for reconsideration.) Owner/Operator Responsibility: Owners/operators of UST systems that meet the criteria for ELD must complete the following steps: • ELD Program Plan Approval: Have a written program of ELD (testing program plan) reviewed and approved by the local agency within six (6) months following notification by the SWRCB UST Program. [Cal. Code Regs., Title 23, § 2644.1, subd. (a)(3)] • ELD Test Implementation: Implement the approved program of ELD (testing program plan) at their facility. • For UST systems with a single-walled component, ELD testing must be performed within 18 months following receipt of notification from the SWRCB UST Program and repeated every 36 months. [Cal. Code Regs. Title 23, § 2644.1, subd. (a)(3)] ■ For UST systems without a single-walled component, upon written request by the SWRCB, one ELD test must be performed within 18 months from the date of notification. [See Health & Saf. Code, § 25289(b).] • ELD Test Notification: Notify the local agency at least 48 hours prior to conducting the ELD test unless this notification requirement is waived by the local agency. [/d., § 2644.1,subd. (a)(4)] • ELD Test Result Submittal: Submit the results of the ELD test to the SWRCB USTProgram and the local agency within 60 days after the test has been performed. [Id., § 2644.1 , subd. (a)(5)] 3 A hybrid UST system refers to a UST system comprised of both single-walled and double-walled components.Because they contain a single-walled component,hybrid UST systems that are subject to ELD must be tested within 18 months of notification and every three years thereafter,unless all regulated single-walled components are upgraded to double-walled.[Cal.Code Regs.,Title 23,§2644.1,subd.(a)(1)) California Environmental Protection Agency ped Recycled Paper