There is water around the base of the water heater. Is that urgent?
Treat it as urgent until you know where the water is coming from.
Some sources are easy repairs. A loose or corroded fitting on the pipes at the top. A drain valve near the bottom that is dripping. The relief valve or its discharge pipe letting water out because pressure or temperature is too high.
The serious one is the tank. If the water is seeping from the body of the heater, the steel inside has rusted through. That cannot be repaired, and a weeping tank can split and dump its whole contents with no warning.
Until someone has looked, close the cold water valve on the pipe feeding the heater, turn off the power or set the gas to pilot, and move anything stored nearby. Put a tray or towels down so you can see whether the leak grows.
Water around a heater is urgent plumbing and goes ahead of routine work, scheduled within 48 hours.
Want it looked at?
Take a photo of where the water is pooling and the label on the heater, and send both with your request.