All the reservoirs were full, except for one, and that one was under repair, they waited until winter to drain it, the liner had torn and they needed to drain it to repair it. 
They had no idea that this freak wild fire would happen, and the firefighters said even if this reservoir was up and running that it would of only slowed down the fire a bit, but it wouldn’t of made much of a difference overall because of the out of control winds. 
Old J.D. must have gotten bitch slapped by President Musk for his post the other day where he showed kindness and concern for California and the fire victims. I see he’s back to his ugly lying cold blooded self again. God forbid the Vice President show honest leadership and care about the people.