Gas Safety: Keeping the Danger Away The annual report covering the period from July 1, 2011 to June 30, 2012 shows 24 incidents involving the use of domestic mains natural gas; 46 of which were non-fatal casualties and 1 fatality. This is a welcome downward trend from the incidents and fatalities reported in the previous years. For more info, please go to M H Plumbing & Heating.