With respect, you are comparing Apples with Oranges. As you say Chula Vista has its own well and takes care of its maintenance. Location can play a major part in finding decent-quality water. Anything that Chapala SIMAPA has to look after is a total failure, maintenance does not figure into running their system. Like CFE preventative maintenance is not in their playbook, (or the Mexican dictionary) run it till it breaks down, period, then look for parts that are not in their inventory!!!