(A) Users who have the potential to discharge significant levels of flammable substances exceeding 5% of the lower explosive limit (LEL) shall install and maintain approved combustible gas detection meter systems. In the event LEL levels exceed 10%, installed combustible gas meters shall be equipped to activate an alarm and discontinuation of the discharge. All combustible meters determined by the Public Works Director to require engineering design shall have plans prepared and signed by a registered civil, chemical, or mechanical engineer.
(B) Calibration of combustible gas detection meter systems must be certified before startup. Certified annual meter calibrations for existing and new meters are also required from the date of system startup for new installations or the initial calibration for existing systems.
(Ord. 09-03, passed 2-10-2009)