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'• � � r r' r � � r � r <br />DOUBLE WALL TANKS WITH CATHODIC PROTECTION <br />Installation Date After December 22, 1988 <br />All stores that have been built after December 1988 are equipped <br />with electronic monitoring devices, which sound an alarm in the very <br />unlikely event if the tank starts to leak. The leak detection system is <br />designed to help minimize the damaging effects of uncontrolled releases of <br />petroleum products (in this case the detection of used motor oil) from leaks <br />or spill. This system maintains the water quality by helping to prevent <br />groundwater contamination. The monitoring system is able to detect leaks <br />or spills before they can contaminate the groundwater. The system <br />continually detects and provides local audio/visual indication of <br />hydrocarbon vapor caused by leaks or spills in the ground. <br />Every morning before business starts, the responsible person for the <br />operation of the underground storage tank for the waste oil system, shall <br />activate the alarm -reset button. This will confirm the proper operation of <br />the system and it will confirm that there is no unauthorized release of <br />waste motor oil into the environment. This manual check will also confirm <br />that the unit satisfactorily operates in' the automatic mode. An <br />unauthorized release will sound an audio/visual alarm and indicates a <br />release into the interstice (cavity between inner and outer wall) of the <br />double walled tank. <br />Every twelve (12) month a licensed contractor must inspect the <br />system. The contractor must be licensed by Local, State, or Federal <br />Regulatory Agencies. If the system fails the inspection, proper repair must <br />be performed to warrant the function of the monitoring system. Written <br />records of the annual inspection must be kept in the store and made <br />available upon request by inspectors. <br />Notes: The above assures correct monitoring procedures, however check with <br />your Local Implementing Agency. Refer also to the ELNT "Safety & EPA <br />Field Manual", Section VIII, Page 35. <br />Above ground storage tanks for waste motor oil are not regulated and <br />require no operating Permit and no special monitoring procedures. <br />C:/e1ntt1fon ns/monitgdblwall.doc <br />