Propane Information

Millions of Americans rely on propane for dependable energy at home, at work, on the road, and on the farm. Propane is a safe, affordable, reliable and clean offering sustainable energy solutions for generations to come.

Cossatot Propane Company Tanks


The safety of customers, employees and the communities we serve is our number one priority at WelchGas. All our safety policies meet or exceed all national, state, and local propane safety regulations and our employees are continually trained on the latest best practices in safety.

It is our mission to educate our customers regarding propane safety guidelines.

Propane Characteristics


  • Propane is transported and stored as a liquid.
  • Propane (sometimes called LPG or LP-gas) is a colorless and odorless gas.
  • Since propane is odorless, it is intentionally odorized so leaks can be detected. The odor is similar to rotten eggs.
  • Propane vapors are heavier than air and may accumulate in low-lying areas such as basements and ditches or along floors.
  • Propane is flammable when mixed with air (oxygen) and can be ignited by many different sources.
Cossatot Propane Company

Call Your Propane Dealer Or A Qualified Technician If:

1. If you smell propane gas.

2. Your propane tank has shifted or moved.

3. The tank regulator has been exposed to water.

4. The gas lines are broken, bent, damaged or have pulled away from the propane tank or appliances.

5. Propane appliances or their controls have been exposed to water.


What To Do If You Smell Gas

If you think you smell propane in your home, camper, RV or the area around any gas equipment, or if a gas alarm signals the presence of propane, you should IMMEDIATELY follow these suggestions:


  • Extinguish all smoking materials and any other open flames or sources of ignition. Everyone should vacate the building, vehicle or area.
  • Move away without using any electric switches, appliances, thermostats, or telephones.
  • Close the gas shutoff valve on the propane tank or cylinder.
  • Call your propane supplier and/or your local fire department from a cellular telephone or a neighbor’s telephone.
  • Even if you do not continue to smell propane, do not open or turn on the propane supply valve. Do not re-enter the building, vehicle or area. Let a qualified propane service technician and/or emergency personnel check for escaped propane.
  • Have a properly trained propane service technician repair the leak. The propane service technician or emergency responder needs to determine that the leak situation has been fully resolved. The propane service technician should check all of your gas appliances and re-light any appliance pilots.
  • Return to the building, camper, RV or area only when the service or emergency technician indicates it is safe to do so.
Cossatot Propane Company

What To Do If Your Safety Relief Valve Pops Off

  • Propane expands when heated. That increases the pressure in the tank. Above a certain pressure, the relief valve opens to release a small amount of vapor. That release keeps the pressure from building up too much inside the tank. Once excess pressure has been released, the relief valve closes automatically.
  • It’s important to keep your tank painted with a white, aluminum or other reflective color. A rusty, unpainted or dark-colored tank may cause pressure build-up resulting in a safety relief valve discharge.
  • Call your propane marketer whenever your relief valve pops off, so they can determine the cause.
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