Islanders are being warned not to become complacent about wildfires after a bonfire spread rapidly across open land near Corbière earlier this week.
The blaze broke out on Monday near the path leading to the desalination plant and was fanned by strong winds.
Jersey Water warned that the incident could have had serious consequences as water resources remain under pressure following an exceptionally hot and dry summer.
“This incident was certainly a very close call and a stark reminder of the risks posed by wildfire,” the utility company said.
The States of Jersey Fire and Rescue Service said the risk of further fires had not disappeared despite recent rainfall and cooler temperatures.
Jersey experienced its hottest summer on record this year, with temperatures reaching 39.3°C and prolonged dry conditions leaving vegetation particularly vulnerable to catching fire.
Station Commander Chris Smith, head of fire prevention, said: “The Fire Service would like to thank Islanders for their support and responsible behaviour throughout the summer.
“However, we would encourage Islanders not to become complacent, as summers continue to become warmer and drier, the potential for wildfires to occur in Jersey remains a very real risk.”
Earlier this month, White Watch took part in specialist wildfire training at the former Oaklands Hotel site.
The annual exercise covered the threat of “fire tornados”, the speed at which wildfires can develop and spread, and the way common vegetation such as gorse can fuel a blaze.
A fan was used to recreate windy conditions and demonstrate their effect on a wildfire.
Crew Commander Harry Matthews said training had increased in recent years as periods of warm, dry weather became more common.
“The exercise helped crews understand fire behaviour, predict fire spread and develop strategies for safely tackling incidents in Jersey’s rural areas, where highly flammable vegetation such as gorse can fuel rapid fire growth,” he said.
Islanders are being advised not to light fires near vegetation and to take care when using barbecues.
Coals, ashes and the ground underneath should be fully extinguished and cooled with water, while hot ashes should never be put into bins.
People should also avoid smoking in dry areas and must not leave cigarette ends or glass bottles behind.
Anyone who spots a wildfire should call 999 immediately, identify their location using What3Words or nearby landmarks and move to a safe area.
They should not attempt to tackle the blaze unless it can be safely put out with a bucket of water.
