overlooking the history of L.A., as well as some of the efforts already underway to be better prepared for meeting the water needs of the area...this video helps explain how L.A. got to be where it is, 'water-wise', and what efforts are being made to deal with shortages...btw, the attached link speaks to why there wasn't enough water "Pressure" in Pacific Palisades.
A not to be forgotten fact is that PP's water infrastructure was designed for putting out a few house or business fires...NOT thousands of acres engulfed in a Wildfire...for that you heed special resources like scores of AirTankers for spreading fire retardant and water...which were GROUNDED due to the hurricane force Santa Ana winds...unlike in the many previous wildfires around the L.A. Basin. It is not an easy matter to fight a major wildfire with just hoses. One other thing, a lot, and maybe most, of the fire transmission was "House to House"...not "Tree or Brush to House"...meaning that Building Codes and Fire Protection Codes need to be upgraded...lessons learned.
Link: https://www.youtube.com/watch?v=OsuBmAVqR7I