Restrictions on how and when people can water outdoors will begin Friday. San Antonio is now facing a hot and dry summer that's led to the aquifer dropping to 659.9. It's a trigger for stage one water restrictions.

When 10-day average of the Edwards Aquifer monitoring well drops below 660, state law requires a decrease in pumping from the water source.

"Everybody should know that you can still water your landscape and you can still keep it healthy, but there are rules now," Karen Guz, the Conservation Director with San Antonio Water System, said.

Guz said the key in conserving water during this time is to know your day. Under stage one, outdoor watering with a sprinkler or irrigation system is allowed only one day a week, before 11 a.m. and after 7 p.m. The timing is determined by the last digit of your street address.

0 or 1 – Monday

2 or 3 – Tuesday

4 or 5 – Wednesday

6 or 7 – Thursday

8 or 9 – Friday

Watering days start and end at midnight and people aren't allowed to water overnight.

SAWS said the proper way to water landscapes is by hand using a hand-held hose and people should be able to touch the end of the water.

"If you have an irrigation system, get out there in the garage and take a look at that controller," Guz said. "Make sure it's not set for the wrong day, because you can accidentally have it going off when you don't mean for it to."

Following drought rules are city law, so not doing so can lead to a citation. When the restriction will end is unpredictable. It all depends on the weather. SAWS said if it happens to rain significantly and brings the aquifer back up, the restrictions will be pulled back. Otherwise it goes into effect Friday until further notice.

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