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From: Kasey Foley [EH] Sent: Wednesday, June 03, 20091:45 PM To: Aris Cacapit [EH]; Cody Begley [EH]; Garrett Backus [EH]; Jeff Wong [EH]; Kimberly Blackwell [EH]; Linda Turkatte [EH]; Michelle Henry [EH]; Muniappa Naidu [EH]; Raymond von Flue [EH]; Thuy Tran [EH]; Willy Ng [EH] Subject: Emergency Generators that are USTs Everyone, I just spoke with Laura Fisher (previously Chaddock) of the SWRCB about the requirement to perform testing on pressurized emergency generator lines. This particular site was an AT&T site but it applies to all emergency generators so I thought I would share this information. When AB 2481 was passed in 2002 a section was added to the Health and Safety Code that excluded unburied fuel piping connected to an emergency generator tank system from regulation under specific conditions (see below). 25281.5. (a) Notwithstanding subdivision (m) of Section 25281, for purposes of this chapter "pipe" means all parts of any pipeline or system of pipelines, used in connection with the storage of hazardous substances, including, but not limited to, valves and other appurtenances connected to the pipe, pumping units, fabricated assemblies associated with pumping units, and metering and delivery stations and fabricated assemblies therein, but does not include any of the following: (1) An interstate pipeline subject to Part 195 (commencing with Section 195.0) of Subchapter D of Chapter 1 of Title 49 of the Code of Federal Regulations. (2) An intrastate pipeline subject to Chapter 5.5 (commencing with Section 51010) of Part 1 of Division 1 of Title 5 of the Government Code. (3) Unburied delivery hoses, vapor recovery hoses, and nozzles that are subject to unobstructed visual inspection for leakage. (4) Vent lines, vapor recovery lines, and fill pipes which are designed to prevent, and do not hold, standing fluid in the pipes or lines. (b) In addition to the exclusions specified in subdivision (y) of Section 25281, "underground storage tank" does not include any of the following: (1) Vent lines, vapor recovery lines, and fill pipes that are designed to prevent, and do not hold, standing fluid in the pipes or lines. (2) Unburied fuel delivery piping at marinas if the owner or operator conducts daily visual inspections of the piping and maintains a log of inspection results for review by the local agency. The exclusion provided by this paragraph shall not be applicable if the board adopts regulations pursuant to Section 25299.3 that address the design, construction, upgrade, and monitoring of unburied fuel delivery piping at marinas. (3) Unburied fuel piping connected to an emergency generator tank system, if the owner or operator conducts visual inspections of the piping each time the tank system is operated, but no less than monthly, and maintains a log of inspection results for review by the local agencX. The exclusion provided by this paragraph does not apply if the board adopts regulations pursuant to Section 25299.3 that address the design, construction, upgrade, and monitoring of unburied fuel supply and return piping connected to emergency generator tank systems. (c) For purposes of this chapter, "emergency generator tank system" means an underground storage tank system that provides power supply in the event of a 'commercial power failure, stores diesel fuel, and is used solely in connection with an emergency system, legally required standby system, or optional standby system, as defined in Articles 700, 701, and 702 of the National Electrical Code of the National Fire Protection Association.