There are so many things at play Nonny. Including a (understandable) lack of knowledge about how aerial drops work. So let’s tackle it.
To the two points you raised. I highly doubt jurisdiction is a factor. These crews from Nor Cal and elsewhere, theyre there to help, chain of command is coming from LA. It’s their turf, they give the orders and tell the visitors where they’re needed.
Distance from water to fire is a factor. No they can’t use salt water from the ocean (I’ve seen this asked elsewhere, so not directed at you at all Nonny, just getting it out there). The planes need the space to be able to pick up the water, so not just any old body of water will do and they can only carry it so far when it does, it’s a lot of weight in a not super big plane (or chopper).
But the biggest factor is strategy. Whether it’s water or retardant (LA is currently using both) we need to be strategic about where we’re dropping it. Both because it’s a limited resource, so we want to be as efficient as possible, and just the strategies we use to fight fires.
Think of it like this: you’ve been tasked to put out the family camp fire. You only have a gallon water bottle and the spigot is 50 yards away. So you dump the bottle right into the middle of the fire and go refill. Well by the time you’re back that fire is going to have dried out whatever water you dumped on it and be fully raging in the middle again.
So what do you do? Saturate along the edges. Build into the middle, where the fire is biggest and hottest. That’s kind of what they’re doing here. Saturating the edges. This helps reduce flare ups, and creates a barrier that hopefully the fire won’t get past.
Also we really, really don’t want to drop it in residential zones, if we don’t have to. If the structures there are still sound (and I know there are areas where they aren’t but there are just as many where they are) they won’t be after having thousands of gallons dropped on them from the sky.
Strategy goes even further too. You want to start with the smaller fires. It’s way more efficient when dealing with multiple fires. Because these smaller fires are more under control and more easily and quickly containable. Then as the retardant and/orwater is spread, saturating those edges, creating that barrier, the fire can suffocate. It doesn’t have the fuel to keep growing. And the less crew is needed to put it out. Those additional crews can be redeployed to the larger fires.
Wind is still a huge factor. It’s been a calmer couple of days, but we need the winds to be right. They’re also, supposed to pick up again over the weekend and into next week. When we say things like the winds are too high to fly, that’s only partly true. Sure the stability of the planes is a part of it, especially with the weight differential they’ll go through. But we also need this stuff, be it water or retardant, to land where we want, where we need it, to land. If the winds are too high, it’s going to take that water and retardant to places it’s not needed, as it falls and disperses.