There is a daily public awareness campaign in Spanish on Facebook. Here’s a translated sample of what the water committee is posting (follow “Agua Potable La Manzanilla” on Facebook to see these notices).

URGENT NOTICE: LET'S CONSERVE WATER

To all water users, we speak today with great concern and sincerity… Water is indeed running out.

We have confirmed that the well at the soccer field has dropped in levels, as has the one at the intersection. This well was always good, but it is starting to produce brackish water—less than the one at the intersection, but it is a clear sign that its levels have decreased. We had already warned you, and it seems you didn't believe us because you continue watering the streets. Those who water the most and waste the most water are those who always have water with good pressure, all in the lower areas and the city center. The aquifer is dropping, even if you say it's just for a little while to quell the dust, or that you have your own well, so there's no problem… or that you can't afford to fix your leaky faucet or its faulty installation due to a missing float valve, etc.

Despite repeated warnings through this channel that service will be cut off for those who continue wasting water in the streets and have faulty plumbing, you have ignored them. You continue to waste water without consideration, not caring that other people aren't getting water. But don't be surprised or angry when we come to measure your water. I think we've been too lenient, and we continue to see water wasted in the streets, hoses left running, and leaks left unrepaired.

Meanwhile, there are families, children, and elderly people in higher areas who turn on their taps and nothing comes out.
That's what hurts us the most.
Because of this situation, we will be reducing water rationing times as an emergency measure, because we can no longer manage as we used to.
This isn't a punishment... it's the only thing we can do to ensure there's enough water for everyone. We ask you from the bottom of our hearts:
Don't waste water.
Don't water the streets.
Check your leaks.
Use only what you need.
The water that was wasted yesterday, we are using today. Together we can get through this… but we need everyone's participation in conserving water.
We remind you that water rationing schedules will be reduced, and some areas will even have water only every three days.
These four months—April, May, June, and July—are the most critical for water every year, but this year water levels have dropped even further.