Water agency seeks power to limit home use
Shift would ensure one of driest areas in U.S. has enough supply
CARSON CITY, Nev. — Nevada lawmakers are set to consider a remarkable shift in allowing the water agency that manages the Colorado River supply for Las Vegas to limit residential use in the desert city.
It’s another potential step in a decades-long effort to ensure one of the driest metropolitan areas in the U.S. has enough water. Already, in Las Vegas ornamental lawns are banned, new swimming pools have a size limit and the water used inside homes is recycled.
While some agencies across the U.S. West tie increased water use to increased cost, Nevada could be the first to give a water agency — the Southern Nevada Water Authority — the power to restrict what comes out of residents’ taps in state statute. The provision is one among many in a sweeping omnibus bill that went before legislators Monday afternoon.
Nevada is one of seven states that rely on the Colorado River. Deepening drought, climate change and demand have sunk key Colorado River reservoirs that depend on melting snow to their lowest levels on record.
“It’s a worst case scenario plan,” said the bill’s sponsor, Democratic Assemblyman Howard Watts of Las Vegas. “It makes sure that we prioritize the must-haves for a home. Your drinking water, your basic health and safety needs.”
The bill would give the water authority leeway to limit water usage in single-family homes to 160,000 gallons annually, incorporate homes with septic systems into the city’s sewer system and provide funding for the effort.
The average home uses about 130,000 gallons of water per year, meaning the largest water users would feel the pinch, according to the agency.
The authority hasn’t yet decided how it would implement or enforce the proposed limits, which would not automatically go into effect, spokesperson Bronson Mack said.
Las Vegas relies on the Colorado River for 90% of its water supply. Nevada has lost about 8% of that supply already because of mandatory cuts implemented as the river dwindles further. Most residents haven’t felt the effects because Southern Nevada Water Authority recycles a majority of water used indoors and doesn’t use the full allocation.
Nevada lawmakers banned ornamental grass at office parks, in street medians and entrances to housing developments two years ago. This past summer, Clark County, which includes Las Vegas, capped the size of new swimming pools at single-family residential homes to about the size of a three-car garage.
Watts said he is hopeful other municipalities that have been hesitant to clamp down on residential water use will follow suit as “good stewards of the river” with even deeper cuts to the Colorado River supply looming.