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Frequently Asked Questions

About Lenexa stormwater

  • Annual average rainfall in Lenexa is 37 inches per year.

  • The main surface water pollutants are sediment, fecal coliform bacteria, phosphorus and trash.

  • Our stormwater staff maintain over 160 miles of pipe.

  • We maintain nearly 9,000 storm drain inlets.

  • We maintain 22 miles of streams.

  • Our Stormwater Division has 14 full-time employees.

Stormwater

What is Rain to Recreation?

Rain to Recreation is the name of our innovative stormwater management program that aims to reduce flooding and protect water while preserving natural habitat and providing educational and recreational opportunities for our residents. This award-winning program is nationally recognized as a leader for its practices that focus on stormwater protection, restoration and education.

What is a watershed?

A watershed is an area of land that drains to a common body of water, such as a nearby creek, stream, river or lake. Watersheds vary considerably in size. For example, when it rains, all the water from a small watershed may travel to a local creek. That creek will flow into a larger stream, like Mill Creek, which collects water from an even larger watershed. Mill Creek flows into the Kansas River, which then deposits water into the Missouri River.

What is stormwater and why should I worry about it?

Runoff from rainstorms is called stormwater. When stormwater flows over surfaces such as streets, parking lots and lawns, it picks up pollutants such as oil, fertilizer and trash. This water then flows directly to streams, rivers and lakes without treatment. Without treatment polluted waters are a health concern and detrimental to wild life and plants.

What is a storm drain?

Storm drains are the metal grates found on urban and suburban streets, often at corners and on the sides of curbs and gutters. They help prevent flooding by draining rainwater and melted snow off of streets and other paved surfaces.

Are sewers and storm drains the same thing?

No. The water that goes down a sink or toilet in your home or business flows through a sewer system to a wastewater treatment plant, where it is treated and cleaned. Water that flows down a driveway or street and into a gutter goes to storm drain and directly to a natural body of water, untreated.

Do storm drains get cleaned out?

We are responsible for ensuring that thousands of storm drain inlets and hundreds of miles of conveyance pipes citywide are clear of obstructions that might cause water to back up and cause flooding. Storm drains and inlets are cleaned on a periodic basis across the community as conditions and seasons dictate. To report flooding from a storm drain, please call the Municipal Services Department at 913.477.7880 or report via the 311 Service Request.

Yard clippings leaves are natural, so they don't cause any problems when I blow them into a drain or leave them by the stream, right?

Disposing of yard waste on stream banks is unsightly, unsanitary and unsafe for humans and wildlife. Grass and leaves repeatedly swept or washed into the storm drains can become a breeding ground for rodents and insects and can clog drains, causing localized flooding. Plant matter washed into streams or other bodies of water also deprives aquatic life of oxygen.

If I notice a foreign substance in a storm drain inlet, what should I do?

If you notice a foreign substance flowing into a storm drain inlet or see someone pouring something into a storm sewer, please call the Municipal Services Department at 913.477.7880 to report the location or report via the 311 Service Request. Common signs of pollutants are strange odors, colors in the water or an odd sheen on the surface.

Dumping trash, chemicals, yard waste and other substances is against the law and is a violation of our municipal code that prohibits dumping onto roadways or into the storm drain system.

Funding

What is the Stormwater Utility Charge?

Lenexa's Stormwater Utility Charge is the annual fee charged to residents as a portion of their property taxes. This charge pays for stormwater improvements to ensure our lakes, streams and natural habitats stay healthy.

Stormwater Utility Charge Schedule of Fees (PDF)

What is the Storm Systems Development Charge?

Our Storm Systems Development (SSD) Charge is a stormwater utility fee that functions like a wastewater or drinking water utility fee. It is a dedicated fee that is only used to fund the operation, construction and maintenance of stormwater infrastructure to prevent flooding and protect water quality. The SSD Charge is a one-time fee collected at the time of construction.

How is the SSD Charge determined?

The fee is based on the amount of stormwater a particular parcel passes to the stormwater system from the average amount of impervious surfaces (things such as driveways and rooftops) associated with a single-family home in Lenexa. We take a standard measurement, termed an Equivalent Dwelling Unit (EDU), of 2,750 square feet. For commercial and multi-family units, we calculate the total impervious area and divide it by 2,750 square feet to arrive at the total number of EDUs for any particular dwelling. Therefore, the more runoff a building contributes, the greater the fee.

If a property is not near a body of water, why is it charged?

All businesses and homes within a given watershed have an effect on the quantity and quality of the stormwater runoff in that area, despite how far the property is located from a stream or lake. All Lenexa residents have equal responsibility to support stormwater programs and infrastructure, based on their calculated contribution, the EDU.