If there is a fire in Topanga water will be a very valuable resource. Homeowners who have swimming pools (with more than 5000 gallons of water) can notify firefighters by purchasing and displaying a sign from http://www.idm-usa.com/   If you have a pool with a fire department connection, use the red sign. if you just have a pool, use the blue one. The pool sign page is:  http://www.idm-usa.com/draftandpoolplacards.html