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Phone: 913-715-8500

11811 S. Sunset Drive, Suite 2500, Olathe, Kansas 66061

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wastewater department

Johnson County Wastewater is responsible for the safe collection, transportation, and treatment of wastewater generated by residential, industrial, and commercial customers. Johnson County Wastewater works to eliminate disease-causing bacteria and to protect the environment for human and aquatic life. Johnson County Wastewater's role is to ensure that our streams, rivers and lakes are free from disease-causing bacteria and viruses that are harmful to the public health.

Department News

JCW plants all achieve 100% permit compliance in 2016
August 30, 2017

Each year the National Association of Clean Water Agencies (NACWA) recognizes public wastewater facilities for outstanding compliance with National Pollutant Discharge Elimination System (NPDES) permit limits. This recognition program consists of Peak Performance Awards in three categories - Platinum, Gold and Silver.

Johnson County Wastewater was recognized in July at the NACWA national conference held in St. Louis for its outstanding compliance records in the 2016 calendar year.

Two JCW treatment facilities received the Gold Peak Performance Award which honors treatment works that have achieved 100 percent compliance with the NPDES permit for 2016.

  • The Myron K. Nelson Plant
  • The Douglas L. Smith Middle Basin Plant

This year, JCW is proud to announce they received four Platinum Peak Performance Awards to honor treatment works that have completed at least five years of complete and consistent National Pollutant Discharge Elimination System (NPDES) permit compliance. This is the highest number of Platinum Awards the department has ever earned. The county's Platinum Award recipients are:

  • The New Century AirCenter and the Tomahawk Creek plants for five years of permit compliance, 
  • The Mill Creek Regional Plant for ten years of permit compliance, and
  • The Blue River Main Plant for eleven years of permit compliance. 

Staff members were recognized at the regular meeting of the Johnson County Board of County Commissioners last Thursday.

Platinum Awardees were featured in a video presentation at an awards ceremony during NACWA's 2017 Summer Conference, and in the video, facility staff were asked to "jump" for clean water - with a prize at stake for best photo. 

General Manager Susan Pekarek has high praise for the employees. "All of you are very humble. You are committed to keeping public health and the environment safe. You do what it takes, not only operating and maintaining our systems during the day, but also coming in to work in the middle of the night, on weekends and holidays. You don't brag on yourselves; you simply do what you are committed to do. And nearly all the time, you do it without anyone in the public knowing how you are taking care to protect them. For that, I thank you. Keep up the great work. The rest of the leadership team and I are so very proud of all you!"  

Better flood protection available
August 10, 2017

In the past, some Johnson County homeowners have faced the frustrating challenge of basement flooding during extremely heavy rains. There are several common causes for wet basements. Because Johnson County Wastewater wants to help you better protect your home during these rains, a Backup Prevention Program is available to homeowners. This program is voluntary and provides funding to eligible homeowners so they may install a backup prevention device or make plumbing modifications on their property.

For details about this program and whether you might be eligible, go to Johnson County Wastewater Backup Prevention Program.

Request for subcontractors
July 24, 2017

Would you like to be part of the $250 million expansion of the Tomahawk Creek Wastewater Treatment Facility? If so, you'll be interested in this Subcontractor and Vendor Project Introduction on July 25. The event will showcase the needed subcontractor work with McCarthy representatives there to answer questions. 

The event is set for Tuesday, July 25 from 2 to 4 p.m. at the Doubletree by Hilton, 10100 College Blvd., Overland Park, KS. Please RSVP to monica@shockyconsulting.com.

Go to mccarthytomahawkwwtf.com:

  • For additional information about subcontractor needs
  • To register for this project
  • Begin the prequalification process
  • To receive all future correspondence on the project as well as invitations to bid

Project Background: The Tomahawk Creek Wastewater Treatment Facility, located at 10701 Lee Boulevard in Leawood, was originally built in 1955. The facility treats wastewater from the Tomahawk Creek watershed, the Indian Creek watershed downstream of the Douglas L. Smith Middle Basin Wastewater Treatment Facility (Lower Indian Creek), and the Dykes Branch sub-watershed. Johnson County Wastewater is expanding the facility to 19 Million Gallons per Day (MGD). It currently treats 7 (MGD). Black & Veatch/HDR engineering team recently completed the Project Definition Phase of the expansion and McCarthy has been hired as the Construction Manager at Risk (CMAR) for the project.

Construction Schedule: The Tomahawk project is scheduled to start in 2018 with completion in 2021.

Who is McCarthy? McCarthy has been building Water/Wastewater projects for more than 30 years and has completed projects all across the country. Join our team for this major community investment in wastewater infrastructure.

Subcontractors are needed in these areas.

Public Health Advisory Lifted For Water in Brush Creek
May 17, 2017

In collaboration with Johnson County Wastewater, the Johnson County Department of Health and Environment has lifted a health advisory for residents living in the area between 55th and Mission and 75thand Mission. The advisory was issued Saturday, May 13 due to a sanitary sewer overflow into Brush Creek in the areas of Prairie Village and Mission Hills.

Johnson County Wastewater crews investigated the source and determined a private contractor unknowingly drilled into a sewer line in the area near Tomahawk Road and Mission Road.  The damaged line has been repaired. The Wastewater Department flushed the creek in the area and tested the water.  Bacteria levels have returned to normal allowing the advisory to be lifted today.  

If you have questions about the advisory being lifted, please call 913-477-8436.

MyGovernmentOnline Software Launch
April 12, 2017

Johnson County Wastewater is excited to announce that we will launch the MyGovernmentOnline permit and inspection software May 1, 2017.  The software will enhance the permit application submittal, plan review and inspection experience for owners, engineers, contractors, tenants and others through convenient online services.

Users will have the ability to:

  • Submit layouts online for preliminary review.
  • Apply online for projects/permits.
  • Pay fees online by bank draft (ACH) with no service charge.
  • Pay fees online by Visa and MasterCard.  A 2.4% service charge will apply.
  • Submit “paperless” plans and documents  in PDF format
  • Track application progress up to permit issuance.
  • View and print copies of review comment letters and project drawing comments.
  • View and print copies of approved building plans.
  • Request inspections online.
  • View and print completed inspection reports.
  • Receive real-time e-mail or telephone call notifications when an inspection is completed.

Please download a copy of the MyGovernmentOnline Customer Portal Instructions and create your free customer portal account as soon as possible. Contact information for each individual associated with a project including email address, postal address, phone number(s) and must be completed and confirmed during the review process. Individuals associated with a project may include:

  • Site developer
  • Deeded property owner
  • Tenant
  • Civil engineer
  • Architect
  • Plumbing designer
  • General contractor
  • Sewer main contractor
  • Internal and external plumber(s)


The MyGovernmentOnline software will allow you to apply for your permits online rather than traveling to a designated permit office.  Any documents required with an application, such as architectural plans, civil plans, plumbing plans, surveys, plats, calculations, etc. must be uploaded in PDF format when submitting the application. 

Inspection requests must be submitted online prior to 4 p.m. to have an inspection performed that same day. JCW authorization of the inspection is required before the inspector will be scheduled.  JCW inspectors will enter inspection results at the time of inspection and the inspection results will be provided via e-mail or through the customer portal shortly after the inspection.

If you need any assistance using the MyGovernmentOnline application, please call the technical support line at 1-866-957-3764, option 1 for assistance. The agents can assist with any software-related questions.  

JCW with MyGovernmentOnline will offer a two-hour exploration session the afternoon of April 25 and the afternoon of April 26.  Please RSVP to JCW-Solutions@jocogov.org or JCW Customer Service at 913-715-8590 if you will attend.  Attendees are encouraged to bring their laptops.