LPG is not toxic and is not poisonous, but it is highly flammable – and that’s the vital role it plays today by providing a heat source for industry, space heating, cooking and water heating.
Due to the quantities of LPG that we store at our sites, Liquigas is known as an upper tier Major Hazard Facility under the Health and Safety at Work Act 2015. This means we must prove to WorkSafe that our safety, operating and maintenance systems keep our risks as low as possible.
We do this by submitting Safety Cases to them for approval, and we re-submit these every five years. A Safety Case is a written demonstration of the ability and means to manage and control major incident risks effectively. It includes a summary of safety assessments, safety management systems and emergency plans.
This is a comprehensive investigation and analysis of all aspects of risks to health and safety associated with major incidents on our sites. Our major risk is from an uncontrolled release of LPG because it could catch fire if it were to reach an ignition source. Because our storage tanks are mounded (see the safety & storage tab), they are protected from impact and fire which means that the chance of failure is extraordinarily low. Potential uncontrolled releases may come from piping, during shipping operations or during road tanker operations. These systems contain significantly less LPG than our storage tanks.
All of our safety systems (including sirens and beacons) are tested on a regular basis. A test on a siren will activate it for only a few moments.
All of our electrical circuits on our sites are safe which means that they don’t contain enough energy to create an ignition source.
This is used as the primary means to ensure our safe operation and it provides the links between systems and controls. It contains things such as policy and procedures, organisation and personnel, performance monitoring, audits and reviews.
These focus on major incidents that the Safety Assessments have identified.
Following an uncontrolled release such as those identified in the Safety Assessments, a fire siren will activate and the site will automatically shut down. The NZ Fire Service are automatically called out to provide support with managing the release, as well as being ready in the event of a fire. The release may take the form of a visible cloud travelling at wind speed. Higher wind speeds mean the cloud moves and disperses quickly, lower wind speeds mean the cloud would stay together but not travel as far. Water sprays may activate to disperse the cloud. The risk of such a cloud reaching our neighbours is very low, but anyone able to self-evacuate from a cloud should do so.
Immediate neighbours will be notified directly by Liquigas staff via telephone. Nearby neighbours may be contacted by either the Fire Service or the Police. They should shelter in place if they can, unless told differently.
For further information contact Gary Heaven (Operations & Safety Manager) via our Contact Us page.