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The Challenge

If left unmaintained, a single swimming pool can produce millions of mosquitoes in a month. Mosquitoes require standing water to complete their life cycle. If there is standing water in a pool or on top of a pool cover, those areas can become a source of mosquitoes. Pools that produce mosquitoes are public health risks. Controlling mosquitoes in non-functional pools is a year-round challenge and requires significant effort and planning to remain mosquito-free.

With more than a thousand pools to monitor, the District needs cooperation from residents. While many pools are clean and functional, there are pool conditions that may require multiple compliance checks every year. This can be resource-intensive and inconvenient for residents.

The Solution

Mosquito control is a shared responsibility. All residents must make sure their swimming pools are clean and functional, or do not pose a public health risk by producing mosquitoes.

The use of long-term mosquito management strategy for pools includes a working pump and filtration system, and a regular chemical treatment schedule.

The District provides control options for residents, such as providing assistance while a pool is restored to being clean and functional.

Control Options

1. Short-term Pesticide Treatment - A clean and functional pool is the best way to stay mosquito-free. Pesticide treatments are available as a short-term solution for residents who are in the process of restoring their pool to a clean and functional state. Your technician has a variety of treatments based on the severity of the mosquito situation. To learn more: https://www.mosquitoes.org/chemical-control

 2. Mosquito Fish Program - The mosquito fish, Gambusia affinis, is a surface feeding minnow from North America that is used around the world to control mosquito larvae. These fish are a low-maintenance, long-term treatment strategy that work well in artifical water bodies such as unmaintained swimming pools to prevent the development of mosquitoes. After initial assessment of the pool, the District will deliver the fish, free of charge. The resident is responsible for reporting to the District if the fish die or are unsuccessful. To learn more: https://www.mosquitoes.org/biological-control