Many American cities rely on rivers or reservoirs, but San Antonio is different.

The water source for San Antonio is the Edwards Aquifer.

It is a massive underground water storage layer that provides drinking and utility water for the people of San Antonio.

So when it doesn't rain, it's not the river levels that drop, but the groundwater levels.

And it takes a long time for groundwater to replenish. Just one heavy rain a month won't solve the problem.

According to SAWS data, the current level of the Edwards Aquifer is about 627 feet.

You can see what this means by looking at the drought management criteria.

If it drops below 660 feet, the drought stage begins.

If it goes below 650 feet, water usage restrictions are tightened.

If it drops below 640 feet, it is considered a severe drought stage.

The current level of 627 feet means it is already well below the severe drought stage criteria.

Water level measurements are taken daily based on the Bexar County J-17 observation well.

This number becomes the basis for determining the drought stage.

You can check the current levels, rainfall, and drought stages in real-time on the SAWS or Edwards Aquifer Authority websites.

https://www.edwardsaquifer.org/aquifer-protection/

Depending on the drought stage, there are restrictions on sprinkler usage times, weekly watering, and in severe cases, bi-weekly watering regulations.

If you violate these rules, you can actually be fined. Neighbors may report you as well.

It's better to check the drought stage and comply rather than ignore it and end up with a bill.

The situation with nearby lakes is similar.

Canyon Lake reportedly reached 60% capacity even after last year's flooding.

I thought it would exceed 80%, but the lack of rain lately seems to be serious.

This is not just a groundwater issue; the entire regional water cycle system is under stress.

If you live in San Antonio, you need to recognize that water waste directly impacts your water bill and usage restrictions.

This is not a problem that can be solved with just one heavy rain. Groundwater drains slowly and replenishes slowly.