First five minutes matter
Emergency service is faster when the first note is specific. Write what failed, when it started, whether water is active, whether breakers tripped, whether equipment is hot, whether a gas odor is present, whether vulnerable occupants are present, and whether a shutoff or panel is accessible. If the emergency involves Malibu gas or sewer context, SoCalGas, SCE, LA County, or a City of LA pocket, mention the address and utility clue clearly.
For HVAC, move vulnerable occupants to the coolest available space and turn off equipment if water or burning smell is present. For plumbing, close the local shutoff if safe, protect nearby areas, and avoid running fixtures into a blocked drain. For electrical, avoid repeated breaker resets and keep people away from wet panels, outlets, and cords.