LINCOLN, Neb. (AP) — Lincoln’s mayor is again calling on residents to voluntarily conserve water for the rest of the summer.

Mayor Chris Beutler said Thursday that the city needs to reduce water consumption by about 20 percent. Earlier this week, Lincoln used 80 million gallons of water on Tuesday and 76 million gallons on Wednesday.

Beutler says he is trying to avoid issuing mandatory water restrictions. So he hopes residents will adhere to outdoor water use limits.

The city wants residents with street addresses ending in even numbers to limit outdoor water use — including watering lawns and washing vehicles — to Wednesdays, Fridays and Sundays. Those with addresses ending in odd numbers are asked to limit their outdoor water use to Tuesday, Thursdays and Saturdays.