Southern Nevada Water Authority Fall Watering Guidelines

Mandatory Fall Seasonal Watering Restrictions in Effect Sept. 1
For more information, visit

Change your watering clock to water no more than three days a week – It’s the law

On the heels of a recent water shortage declaration on the Colorado River, the Southern Nevada Water Authority (SNWA) is reminding the community that mandatory fall seasonal watering restrictions are in effect from Sept. 1 through Oct. 31.

Residents and businesses are required to change their watering clocks to three assigned watering days for grass landscapes. Drip irrigation is permitted up to three days a week, but water-efficient trees and plants need less water than grass. Sunday watering is prohibited all year. Find your assigned watering days and get information on seasonal watering restrictions at

The seasonal restrictions take on added significance this year following the Aug. 16 announcement by the federal government of a shortage declaration on the Colorado River. The shortage declaration, coupled with other Colorado River water-saving agreements, reduces the amount of water Southern Nevada can withdraw from Lake Mead by 21,000-acre feet—about 7 billion gallons—beginning in 2022. Lake Mead is the source of 90 percent of the community’s water. If every property in Southern Nevada follows the seasonal water restriction year-round, our community will save more than 7 billion gallons annually.

With the mandatory seasonal restrictions, watering on days other  than your three assigned water days or allowing water to spray or flow off your property is considered water waste and may result in a water-waste fee. Water waste investigators are patrolling the community to enforce city and county ordinances that prohibit water waste. For residential customers, water waste fines range from $40 to $80 or higher for repeated violations.

Residents and businesses throughout Southern Nevada can do their part to save water by following all seasonal watering restrictions reporting water waste to their local provider, and converting unused, non-functional grass landscapes to water-efficient, drip irrigated plants, trees and shrubs through the SNWA’s Water Smart Landscapes Rebate program (WSL). To enroll in WSL and for more information, visit

The SNWA is a regional entity that manages water conservation, water quality and water resource issues for Southern Nevada. Its members include the Big Bend Water District (Laughlin); the cities of Boulder City, Henderson, Las Vegas and North Las Vegas; the Clark County Water Reclamation District; and the Las Vegas Valley Water District.