County officials urge residents to report ‘green pools’


This is the time of year when mosquito breeding is at its peak and the West Nile virus can become prevalent.

While there have been mosquitoes that have tested positive for West Nile virus in the Las Vegas valley, no people have tested positive yet this year. There were two positive human cases last year.

The best way to avoid mosquitoes is to know the places they breed. One of those places can be swimming pools.

County officials want to prevent the problem before it gets out of hand.

One major area of concern are neglected swimming pools, usually found in the yards of abandoned homes.

“It was shocking to me when you could actually see the little larva in the pool that were swimming around and that could be a major problem for mosquitoes,” said Clark County Commissioner Steve Sisolak. 

He is watching as Clark County Code Enforcement drains what are often called “green pools.”

The stagnant water is dangerous because mosquitoes can easily populate there.

“We are seeing that trend go down as the number of owner-occupied homes goes up,” said Jason Allswang, Clark County Code Enforcement.

During the height of the foreclosure crisis, there were as many as 844 green pool complaints. There were also 
nine West Nile virus cases and two deaths.

People are being asked to report stagnant swimming pools.

Click here for online complaint forms

“Even though we have real hot temperatures and we’re a very dry climate, we do have a lot of water,” Allswang said. “Those areas of standing water create an enticing breeding ground for mosquitoes.”

“We’ve had four deaths in the past five years from the West Nile virus,” Sisolak said.

Clark County Code Enforcement pumps the water out of about 10 pools a week. The cost is passed on to the homeowner if someone still owns the property.

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