Gas detection meters, alarms and shutoff valves.

Users with the potential to discharge flammable substances may be required to install and maintain a combustible gas detection meter, alarm, automatic shutoff valve, telemetering device, etc., which is approved by the Chief Plant Operator and/or Superintendent of Sewers. It shall be installed in a location approved by the Chief Plant Operator and/or Superintendent of Sewers at the owner's expense, then calibrated per the manufacturer's requirements and maintained at the owner's expense.