The city of Richardson, Texas, is beginning to employ new limitations in the face of its critical water shortage. The town will be using a modified version of the Stage 3 water restriction measures it had previously been using.

The modifications prohibit outdoor watering between 10 a.m. and 6 pm., and only twice a month on specified days. The normal Stage 3 water restrictions allowed for watering at any point in the day.

The days that homes can water are organized by the last digit of their addresses. Even-numbered homes are permitted to water on the first and third Saturday of the month. Odd-numbered addresses, on the other hand, get the first and third Sundays.

The North Texas Municipal Water District (NTMWD) has asked that its member cities continue to water only every of the week due to a short supply of water. Richardson and other cities with the NTMWD have, in past years, been able to lift these limitations during the spring and summer months. But it appears that this won’t be happening anytime soon this year.