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WON • Owners/Operators should submit their request(s) for reconsideration to both their local agency at the appropriate address and to the SWRCB UST Program at: State Water Resources Control Board Division of Water Quality Attention: Kevin L. Graves, P.E., UST Program Manager ELD Request for Reconsideration P. O. Box 2231 Sacramento, CA 95812 What if the request for reconsideration is inadequate to make a decision? Upon receipt of a request for reconsideration that does not include all of the required information, the UST Program Manager will advise the requester of the manner in which the request is incomplete and allow a reasonable time within which an amended request may be submitted. If the UST Program Manager does not receive an adequate amended petition within the time allowed, the request for reconsideration may be denied. What does it mean if the ELD test results indicate that the UST system has "failed"? The ELD test method ascertains the integrity of the UST system by introducing, and checking externally for, a substance that is not a component of the fuel formulation stored in the UST system (referred to as a "tracer" by Praxair and CGRS, and "chemical marker" by Leak Detection Technologies). A "fail' test result indicates that this substance has escaped from the UST system. Based upon the distribution and concentration of substance detected in the soil gas samples collected around the UST system, Praxair Services, CGRS, and Leak Detection Technologies are able to infer the location, relative size, and type of release (liquid versus vapor). What action(s) must be taken if the UST system "fails" the ELD test? Pursuant to the UST regulations, if the UST system fails the ELD test, it may be an indication of an unauthorized release,4 and the owner/operator must notify the local agency within 60 days after the ELD test has been completed. [Cal. Code Regs., Title 23, § 2644.1, subd. (a)(5)] In addition, the owner/operator should review the test report and implement any necessary repairs or corrections to the system. Once the UST system has been fixed, the ELD test must be repeated to confirm that the UST system is no longer leaking liquid or vapor [Health & Saf. Code, §§ 25292.4, subd. (d), 25292.5, subd. (c)]. 4 See Health & Saf. Code, § 25281, subd. (o), defining a 'release" as "any spilling, leaking, emitting, discharging, escaping, leaching, or disposing from an underground storage tank into or on the waters of the state, the land, or the subsurface soils. California Environmental Protection Agency cli Recycled Paper