For any suspected gas emergency, or questions regarding a gas odor or carbon monoxide, please call us immediately at 1-800-427-2200. For additional safety information check our safety section.

Details of what to do, and what questions you will be asked by the operators can be found on the National Grid website.

NSTAR and other gas companies add an odor to gas so you will know if natural gas is leaking. If you smell gas, NSTAR has some important safety procedures for you to follow. NSTAR Gas provides 24-hour emergency service every day of the year. Make sure to call 800-592-2000.

Natural and propane gases are colorless and odorless. Clearwater Gas System adds a distinctive odor resembling rotten eggs, so that you can smell the gas immediately should a leak occur. A faint odor of gas maybe attributed to a pilot light that has gone out and should be re-lit. A strong gas odor indicates that you should leave your home at once. To report a gas leak, call Clearwater Gas System, using an outside phone, at our emergency number: 727-462-6633. Back to Top

The small triangle in the upper left corner of the water meter is a leak detector. If the triangle is rotating, water is moving through the meter. This detector will detect flows small enough that the sweep hand may appear to be standing still. The leak indicator can detect even the smallest amount of water being used. To check for leaks, turn everything off in the house that uses water, even an icemaker.

If you smell gas go to a safe location and call the City of Mesa at (480) 644-4277 (GASS). If you have gas emergency contact (480) 644-4277 (GASS) or 911.

If you believe there may be price-gouging or price-fixing, please contact your local authorities and fill out the Department of Energy's Gas Price Watch Reporting Form.

It is illegal for anyone to use a gas appliance if they suspect it is unsafe. Turn the appliance off and do not touch it until it has been checked by a CORGI-registered installer. Free leaflets explaining some of the main requirements of landlords, under the Gas Safety (Installation and Use) Regulations 1998 and general gas safety information are available from HSE.

If you smell natural gas, please leave the premises immediately, taking everyone with you (including pets), and leave all doors and windows open behind you. Don't re-enter the premises to open doors and windows. From another location, please call us at 401-272-3330.

Shortly after the gas release, Union Carbide launched an aggressive effort to identify the cause. An initial investigation by Union Carbide experts showed that a large volume of water had apparently been introduced into the methylisocyanate (MIC) tank. This caused a chemical reaction that forced the pressure release valve to open and allowed the gas to leak. A committee of experts working on behalf of the Indian government conducted its own investigation and reached the same conclusion.

Get everyone out of the house as soon as possible and call 911 from a neighbor's house. Do not turn anything electric on or off. Alert the neighbors and leave the immediate area.

In the case of any major gas leak, an 'excess flow valve' would shut off the gas automatically & immediately