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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 />0 Recycled Paper <br />