One Arizona water official said Phoenix won’t require residents to conserve water yet, fearing that the action wouldn’t actually benefit the Colorado River and instead would be diverted to other states struggling with drought.

Cynthia Campbell, the water resource management adviser for the city, told WBUR’s Peter O’Dowd that the city won’t mandate that its residents save water by initiating bans on watering lawns. It will, however, pay residents to kill their grass and replace it with a more drought-resistant landscaping option, like gravel.