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Wastewater

Phone: 913-715-8500

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

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Recommended annual maintenance on the Backup Prevention Device

Any maintenance, repair, or replacement costs associated with the backup prevention device or any modifications of the plumbing shall be the responsibility of the property owner following the one (1) year warranty period.

Backwater Valve Maintenance

Option 1 – You can contact a local plumbing company and have them perform the manufacturer recommend annual maintenance.

Option 2 – DIY - if you follow these steps just once a year (twice a year for older and high use properties), you can ensure your valve is doing its job.

What you’ll need:

  • Flashlight
  • Disposable rubber gloves
  • Long handle toilet brush
  1. With gloves on, remove the cap of your backwater valve. Carefully check the cap’s O-ring for signs of damage and replace if necessary.
  2. Inspect the valve’s interior with the help of your flashlight. You can remove any large blockages (like wads of paper) by gloved hand.
  3. Your backwater valve flapper must be able to open and shut with ease and be free of all impairments. Remove the flapper and carefully check the edges, top and bottom of your gate and remove all build-up. Replace the flapper carefully, ensuring that it swings freely once it is seated back into the hinge.
  4. Check the gate’s O-ring for signs of damage and replace if necessary.
  5. Use your toilet brush to scrub the interior of the valve.
  6. With the interior clean and your flapper opening and closing with ease, re-apply the cap tightly but be careful not to cross thread.

Helpful Videos tutorials

Zurn 1088 – Backwater Valve
https://www.youtube.com/watch?v=pAzn9ZBzyHI

Sioux Chief – Pro Check Backwater Valve
https://www.youtube.com/watch?v=3BXGFDuQQ0g

For more information, email our engineering technician or call 913-715-8554.

Privately Financed Sewer Main Projects

Privately-Financed Gravity Main Extension, Relocation, Removal, and/or In-Place Abandonment Projects.

The following documents are provided to guide the developer, engineer, and other interested parties through the Privately-Financed Sanitary Sewer Main Project review and acceptance processes. Plans for privately-financed sanitary sewer main extension, relocation, removal, in-place-abandonment, and/or replat projects within Johnson County Wastewater's service area are required to be submitted to the department for review in compliance with the requirements of Johnson County Wastewater and the Kansas Department of Health and Environment (KDHE). Requirements for plans and other project documents are also included. Once Johnson County Wastewater has received all required project document submittals, please allow up to 14 calendar days to receive initial review comments and up to seven (7) calendar days to receive comments for all subsequent submittals.

Johnson County Wastewater's Procedures for Privately-Financed Gravity Main Projects 

These are the procedures required for a project to become a part of the Johnson County Wastewater sanitary sewer system. Requirement information is included for project plan review, approval, and release; project construction, inspection, and acceptance; and construction record (“as-built”) drawing review and acceptance. A list is included of specific department personnel who may be contacted regarding each topic listed in paragraphs A thru R of this document. Engineering design standards are included in the Minimum Plan Requirements document.

Johnson County Wastewater's Minimum Plan Requirements for Gravity Main Projects

These are the engineering design requirements for submittals, district enlargement, plan preparation, review fees, sewer system design, easements, and drafting standards for sanitary sewer main projects in compliance with Johnson County Wastewater's and KDHE's standards. Please email Johnson County Wastewater's Privately-Financed Main Project Group with any questions about the information included in this document.

Consolidated Main Sewer District Map

Maps of Johnson County Wastewater's sanitary sewer system can be viewed on the Johnson County AIMS Mapping System.

Sanitary Sewer System Maps 

Johnson County Wastewater District Enlargement

All areas served by sanitary sewer mains under the jurisdiction of Johnson County Wastewater must be within the legally-created Consolidated Main Sewer District (CMSD). If the project area is not within the CMSD, the property owner will need to petition for enlargement into the CMSD. To identify whether a project area is within a Johnson County Wastewater CMSD area:

  • Find the project area using the  AIMS website.
  • Select the “JCW Sewer Districts” box under the “Utility Layers” directory.
  • Then select “Redraw” to display. The Johnson County Wastewater CMSD areas are cross-hatched in yellow. If the project area is not within the Johnson County Wastewater CMSD, it may be an area that is currently in the department's planning or design/construction process.
  • To determine if the project area is in process, please select one of the Status of Proposed Districts and Study Areas Map.

The information available through these sources may not be the most current. Please email the Engineering Technician or call 913-715-8533 for the most current and accurate information.

Johnson County Wastewater's Drafting Standards 

This is a sample plan and profile sheet highlighting many important Johnson County Wastewater drawing standards. Plans submitted to Johnson County Wastewater for review shall incorporate these standards. Please email Johnson County Wastewater's Privately-Financed Main Project Group  with any questions about the information included in this document.

Johnson County Wastewater's Standard Detail Sheet [pdf]

Each main project plan set shall include a detail sheet which incorporates required details from the Standard Detail sheet, along with any other required project specific details. Please email Johnson County Wastewater's Privately-Financed Main Project Group with any questions about the information included in this document.

Johnson County Wastewater's Standard Specifications

All privately-financed main projects shall be constructed in accordance with Johnson County Wastewater's Construction and Materials Specification for Sanitary Sewers.

Developer Bond Option 

This document includes the Developer Bond Option forms and instructions for completing the forms. The project developer is required to provide a Bond Option in the amount of $300 per manhole (new and existing) within the project area. The minimum Developer Bond Option amount is $900. The form may be completed on the website and printed for submittal to Johnson County Wastewater. Please email Johnson County Wastewater's Permit Group or call 913-715-8520 with questions about the information included in this document. The Developer Bond Option and the Contractor Maintenance Bond are required prior to sewer connection permit issuance for buildings within the project area.

Privately-Financed Main Project Contractor Requirements

Johnson County Wastewater's Contractor List 

The sanitary sewer contractor for each Privately-Financed Main Project shall be listed on the Contractor List. Please email Johnson County Wastewater's New Development Engineering Manager or call 913-715-8531 with any questions.

Johnson County Wastewater's Contractor Listing Questionnaire

Contractors who are not listed on the Contractor List may submit a completed questionnaire for departmental consideration. An audited financial statement is required to be submitted with the completed questionnaire. Allow at least two weeks for review of the questionnaire and audited financial statement. Please email Johnson County Wastewater's New Development Engineering Manager or call 913-715-8531 with any questions.

Contractor Maintenance Bond

This document includes the Contractor Maintenance Bond form and instructions for completing the form. The project sanitary sewer contractor is required to provide the bond in the amount of 50 percent of the project’s sanitary sewer construction cost. Please email Johnson County Wastewater's Permit Group or call 913-715-8520 for assistance in completing the Maintenance Bond form. The Contractor Maintenance Bond and the Developer Bond Option are required prior to sewer connection permit issuance for buildings within the project area.

Contacts

Building Connection Permitting

Please see the Residential Building Sanitary Sewer Permitting and the Commercial Building Sanitary Sewer Permitting pages for information on the permitting processes for building construction.
 

 

Plumbing Contractors List

AB May Sales and Service Co.
www.abmay.com
913-383-2222

Ben Franklin Plumbing
www.benfranklinplumbingkc.com
816-333-6789

Bills Plumbing Service
913-829-8213

Bob Orpin Plumbing
913-432-2620

Connelly Plumbing Solutions
www.connellyplumbingsolutions.com
913-768-7676

D&D Plumbing
816-830-1946

Essary Plumbing
www.essaryplumbing.com
913-522-6222

Heartland Plumbing
www.heartlandplumbing.com
913-856-5846

Jason Tope Plumbing
www.jasontopeplumbing.com
913-206-5822

Joe Joe's Plumbing and Drain Service
913-208-1509

Joe Lillis Plumbing
www.joelillisplumbing.com
913-451-1991

K.B. Complete Heating, Cooling & Plumbing
www.kbcomplete.com
913-722-6835

LBA Air Conditioning, Heating & Plumbing Inc.
www.lbaheroes.com
913-268-6822

Lutz Plumbing
www.lutzplumbing.com
913-888-9500

Mission Plumbing Heating and Cooling
www.missionphc.com
913-631-6506

Plumbing by Fisher
913-583-1971

Rainbow Plumbing
www.rainbowplumbingandheating.com
913-236-7619

Riden Plumbing
www.ridenplumbing.com
913-432-8495

Stephen Tope Plumbing
www.topeplumbing.com
913-341-9651

Sure-Flow Plumbing
www.callsureflow.com
913-766-4006

Please contact any reputable plumbing contractor. Advise the plumbing contractor to contact JCW at 913-715-8554, if they are not on the above list.

Next Steps

If your property is eligible for the Backup Prevention Program, you will be emailed information that includes: 

  1. Approval letter with additional details about program.
  2. A program agreement you must sign before the contractor does any work.
  3. A copy of a release you will sign once the contractor completes the work.
  4. List of plumbing contractors who have performed work on JCW programs in past.

Once you receive the above information, please contact at least two plumbing contractors for written estimates of comparable methods of preventing sanitary sewer backups .

Submit copies of your estimates and agreements by email or mail them to:
Johnson County Wastewater
ATTN: Troy Young
4800 Nall Avenue
Mission, KS 66202

5.  Review of estimates and agreement, authorization of funds will be for the lowest dollar amount of comparable estimates.
6. Authorization of Funds letter will be emailed to customer, it provides authorized funding amount from JCW’s Backup Prevention Program.
7. Schedule the work with plumbing contractor of your choice. The contractor is responsible for all permits and city inspections.
8. Once the final plumbing contactors invoice is received, a final verification site visit of the work authorized by JCW’s Backup Prevention Program will be scheduled with customer.
9. If customer has not returned a signed program Release form, one will need to be signed at time of final verification site visit (Release will need to be signed for JCW to issue payment).

JCW can make payment directly to plumbing contractor or reimburse customer for authorized cost. If customer reimbursement is payment option additional steps will be needed.

>> Common options for backup prevention

Nelson Complex Wastewater Treatment Facility & Service Area Long Term Capital Improvement Plan Summary Report

February 2021

NOTICE: Upcoming Release Of Request For Qualifications, Nelson Wastewater Treatment Facility Construction Manager At Risk (Cmar) Services - PDF

May 2020

Summary report - PDF

Supplemental information - PDF

The Nelson Complex service area consists of the Nelson Complex Wastewater Treatment Facility (WWTF) and two main tributary basins - Turkey Creek (SMTC) and Mission Main (MTM1). The service area, located in northeast Johnson County, is approximately bounded by 47th Street to the north, 95th Street to the south, Pflumm Road to the west, and State Line Road to the east. Metcalf Avenue roughly divides the two basins, Turkey Creek to the west and Mission Main to the east.

The WWTF was constructed in phases, beginning in the 1940’s. A significant portion of its facilities are at or near the end of their useful service life. The treatment technology currently in place is not capable of meeting future water quality standards.

The collection system was also constructed with technologies that are now outdated. As a result, it experiences significant issues related to limitations in wet weather capacity. In addition, the system contains four satellite peak excess flow treatment facilities (PEFTFs) which discharge directly to adjacent waterways during significant wet weather events after primary treatment and disinfection.

In 2018, Johnson County Wastewater (JCW) commissioned HDR, in association with CH2M and WCS, to determine the optimum solution to these issues and develop a long term capital improvement plan for the Nelson Complex service area. This study aided JCW and Kansas Department of Health and the Environment (KDHE) in negotiating the current and future Nelson WWTF permits, including planning for the future elimination of the PEFTFs. 

In 2020, JCW plans to issue a Request for Proposal (RFP) for a design engineer or design engineering team to begin preliminary design (30%) of the new Nelson WWTF.  This team will also aid JCW in the development of a separate RFP to select a Construction Manager at Risk (CMAR) to assist in the preliminary design process.

Questions regarding this study and/or the upcoming RFP should be directed to:

Patrick Denning, PE
Assistant Chief Engineer – Existing Infrastructure

4800 Nall Ave.
Mission, KS 66202
Email
Office: 913-715-8562

Metcalf and 103rd Interceptor Relocation and Capacity Improvements

(ICM1, Contract 22)

Objective

Johnson County Wastewater is working to increase the capacity of the sanitary sewer system in the general area of 103rd Street and Metcalf Avenue. Referred to as the Metcalf and 103rd Interceptor Relocation and Capacity Improvements, this project addresses approximately 3,000 linear feet of 21-inch through 30-inch diameter existing sanitary sewer interceptor in Overland Park, Kansas, near Pinehurst Park and the Indian Creek Shopping Center that requires additional capacity and protection from streambank erosion. The additional capacity is needed to provide the desired long-term level of service for the tributary area during large wet weather events. This project will provide more dependable and environmentally sound sanitary sewer service to the area.

Project Status

The project is currently under design with construction bidding scheduled for Fall 2020. Engineering (Burns & McDonnell) crews will be in the area performing field investigations throughout the design phase.

Key Contacts

Michael Cunningham JCW 913-715-8545 ([email protected])

Waldo Margheim, Burns & McDonnell 816-844-4641 ([email protected])

logos

Information Links

Notification letters were mailed in January 2020 to property owners and local businesses along the anticipated alignment.

Request for Information forms will assist in the design process. Property owners along the alignment are encouraged to provide input early in the design phase so that concerns can be addressed and, if possible, incorporated into the design.

General Location Map of the project shows projected improvement locations.

Integrated Management Plan

Johnson County Wastewater is conducting a Request for Proposals (RFP) selection process to identify a firm to help refine its Integrated Management Plan.

JCW has already developed Phase 1 of the plan, and the firm chosen during this RFP process will help JCW develop phase 2 of the plan.

About the Integrated Management Plan

JCW is responsible for providing sanitary sewer services for more than 500,000 people in the County. To meet these commitments, JCW must continually manage, maintain and improve a variety of infrastructure assets, including:

•    6 major wastewater treatment facilities (WWTFs)
•    31 pump stations
•    2,300 miles of gravity sewer lines
•    58,000 manholes
•    23 miles of low-pressure sewers
•    42 miles of force mains

To continue providing the same high level of service, JCW understands that future program improvements will need to be prioritized in a way that balances water quality benefit, system growth and asset renewal needs.

In 2012, the US Environmental Protection Agency (EPA) developed the Integrated Municipal Stormwater and Wastewater Planning Approach Framework to provide more flexibility in prioritizing and implementing long-term holistic solutions. This flexibility will allow us to balance social and environmental priorities with the need to keep rates affordable for our customers. 

Using this framework, JCW used a streamlined approach to develop a Phase 1 Integrated Management Plan for the next 25 years.  This Phase 1 Plan is provided here:

Executive Summary

Full Report

During the Phase 1 plan development, JCW identified data gaps and areas where further study was needed to fully inform the long-term plan. JCW also identified the need for a more comprehensive stakeholder outreach program. 

During the future Phase 2 effort, JCW will use the additional information and stakeholder input to revise the long-term prioritization schedule.

Learn more about the RFP

Interested parties can find more information about this RFP through the County’s IonWave online bidding software: https://jocogov.ionwave.net/Login.aspx

Indian Creek Interceptor 2 Capacity Improvements

(ICM1, Contract 21)

Objective

Johnson County Wastewater is working to increase the capacity of the sanitary sewer system in the general area of 95th Street and Roe Avenue. Referred to as the Indian Creek (IC) Interceptor 2 Capital Improvements, this project addresses the approximately 14,000 linear feet of 12-inch through 30-inch diameter existing sanitary sewer interceptor in Overland Park and Prairie Village, Kansas, downstream of the former Meadowbrook Golf Course and Country Club that requires additional capacity (approximately 2,000 feet is upstream [Northwest] of the golf course property). The additional capacity is needed to provide the desired long-term level of service for the tributary area during large wet weather events. This project will provide more dependable and environmentally sound sanitary sewer service to the area.  

Project Status

VF Anderson has completed sewer installation work and continues final restoration efforts.

Key Contacts

Jim Doleshal, Burns & McDonnell 913-210-5162 

Waldo Margheim, Burns & McDonnell 816-844-4641 ([email protected])

Scott Wolters, VF Anderson 816-935-9852

Stuart Lord JCW 913-715-8544 ([email protected])

Information Links

Overall Project Schedule

Meeting presentation from the public meeting on November 9, 2017.

Public Meeting (11/09/17) Notifications Letters were mailed on October 27, 2017 to property owners along the anticipated alignment.

Meeting Presentation from the public meeting on September 29, 2016. 

Public Meeting (09/29/16) Notification Letters were mailed on September 15, 2016, to property owners along the anticipated alignment.

Public Meeting (06/02/2016) Notification Letters were mailed on May 19, 2016, to property owners along the anticipated alignment.

Meeting Presentation from the public meeting on 06/02/2016.

Notification letters were mailed on October 30, 2015, to property owners along the anticipated alignment.

Request for Information forms will assist in the design process. Property owners along the alignment are encouraged to provide input early in the design phase so that concerns can be addressed and, if possible, incorporated into the design.

Engineering (Burns & McDonnell) will continue to be in the area throughout the design and bid phase.

Burns & McDonnell LogoVF Anderson Builders LLC logo

General Location Map of the project shows projected improvements upstream and downstream of the former Meadowbrook Golf Course and Country Club.

 

Getting Started

Submit a Sanitary Sewer Backup Response Questionnaire or go to https://jcw.preventbackups.com/#/new/0 and complete online questionnaire.

Once the online questionnaire is received the following will be reviewed for eligibility . If property does not meet these requirements you will be contacted.

  • Is the property within JCW service area?
  • Determine if property is in a flood-prone area?
  • Determine if neighbors have also experiencing sanitary sewer backups?
  • Check JCW’s history of cleaning and televising of the main lines?

Once we determine whether your property is eligible for the program, we will contact you to schedule a time and date for a site evaluation to discuss the reported water issues.

You will be notified if your property qualities for the Backup Prevention Program at this time.

>> Next steps

Engineering: Help Desk

Have unanswered engineering-related questions?

Are you having difficulty finding answers to engineer-related sanitary sewer service questions, either on our website or from your Johnson County Wastewater project contact? If so, please call Johnson County Wastewater's Engineering Help Desk at 913-715-8587. The line is answered weekdays between 8 a.m. and 5 p.m. CST. Our engineering staff can typically answer your questions within the hour. If that is not possible, research into your request is initiated immediately to get the answers to you as quickly as possible. We know your time is valuable. Our goal is to answer every question within one business day of the initial contact. Please call us for assistance!

 

 

Engineering: Backup Prevention Program (BUPP)

Flood basement

To Our JCW Customers,

As the novel coronavirus COVID-19 begins to impact our community and daily lives, we want to assure you that we are monitoring developments very closely and taking action daily to protect and support customers and employees. As such, a few changes to the processes for eligibility determination and final completion verification have been made and are updated below.

In the past, some Johnson County homeowners have faced the frustrating challenge of basement flooding caused by sanitary sewer backups during extremely heavy rains. JCW 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.

This program is intended to help protect your home from future sanitary sewer backups during heavy rains. However, a backup device or these plumbing modifications will not resolve basement water problems caused by cracks in walls, floors, window well leakage and surface water flooding.

Engineering Public Projects: Tomahawk Creek Wastewater Treatment Facility Improvements

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 WWTF (Lower Indian Creek), and the Dykes Branch sub-watershed. Prior to construction, the Tomahawk WWTF treated 7 million gallons per day, which was 40 percent of the wastewater collected from parts of Leawood, Olathe, Overland Park and Prairie Village. The remaining 60 percent was sent to Kansas City, MO for treatment. Once construction is complete, the facility will treat all of the flow.

Current Status

Johnson County Wastewater is proceeding with the construction of the improvements to the Tomahawk Creek Wastewater Treatment Facility. This project utilizes an alternative delivery construction approach called Construction Manager at Risk, or CMAR. Groundbreaking occurred in April 2018 and the facility is scheduled to start treating flows in October 2021. More information about the construction activities, the individual processes at the treatment facility and more can be found at the project website: Tomahawk Creek Wastewater Treatment Facility Expansion Website

Project Definition Phase

The Project Definition Phase of the expansion focused on the following tasks: refining the previously recommended improvements, project costs, and schedule; developing a conceptual level site plan to support public outreach efforts and site permitting; and negotiating and finalizing a discharge permit for the new facilities. The results of this effort are summarized in the Preliminary Design Report.

Process Improvements Pre-Design Study

Several studies were prepared to determine the future of the Tomahawk Creek Wastewater Treatment Facility. The Pre-Design Study evaluated various treatment alternatives and capacity scenarios using the latest user rate information and regulatory perspectives. The study identified $280 million in investments to expand the facility to 19 MGD as the most beneficial alternative.

Tomahawk Creek Wastewater Treatment Facility Improvements Fact Sheet

Section 1: Executive Summary
Section 2: TM 1 - Basis of Analysis
Section 3: TM 2 - Alternatives Identification & Development
Section 4: TM 3 - Alternatives Selection - Dry Weather Treatment
Section 5: TM 4 - Wet Weather Flow Evaluation & Alternative Definition
Section 6: TM 5 - Wet Weather Flow Alternatives Selection
Section 7: TM 6 - Combined Dry & Wet Weather Alternative Selection

Public Outreach

The project team completed many public meetings for this project, including three open house meetings and multiple presentations to Leawood Planning Commission and City Council. A recommendation for the design phase of the project was presented to the Johnson County Board of County Commissioners (BOCC) on Mar. 31, 2016. At that time the BOCC directed JCW to execute the regulatory permit for the project and to bring forward an authorization for design of the recommended improvements. This design authorization was developed and the BOCC voted to approve funding on May 5, 2016.  The BOCC also voted to approve funding and selection of a Construction Manager at Risk (CMAR) team for pre-construction services and approved funding for construction. Please refer questions to 913-283-0107 or [email protected].

 

Media Coverage

Media coverage since start of construction may be found here: https://www.jcwtomahawk.com/in-the-news. Below are links to earlier media coverage of the project.

Tomahawk treatment plant takes step toward $280 million rebuild

Tomahawk Wastewater Treatment Facility gets green light from Johnson County Commission

New EPA guidelines to affect Tomahawk sewage treatment plant

 

Engineering Public Projects: Overview

Investing in Our Infrastructure

Johnson County is a community that is thriving both socially and economically. This continued prosperity is strengthened by having reliable and sustainable wastewater networks with the capacity to support the community. Johnson County Wastewater's Engineering Group manages sewer design and construction projects throughout the County. These improvements are being built so that we can continue to provide you, our customers, with reliable sanitary sewer service.

Living With Construction

Johnson County Wastewater does all it can to minimize the impact of sanitary sewer construction on people who live and work in the project areas. Sometimes this work goes unnoticed because it often takes place underground. But occasionally work must be done in streets or alleys near homes or businesses. We take care to reduce noise, dust, traffic, and any other potential construction nuisance to a minimum. We also meet with and mail updates to impacted neighbors before and during construction to get their input and provide them with progress reports.

Sewer Expansion

The traditional method for enlarging Johnson County Wastewater’s sewer service area is to petition to add the described land to the Consolidated Main Sewer District (CMSD).  The enlargement process is described in the link below. Publically-financed main sewers do not serve every parcel of land within a watershed, but provide the backbone of the sewer system.  Branch lines which extend from these publically-financed main sewers are privately financed by the property owners.

Engineering

Service Area Brochure explains the costs and process of bringing properties into the Johnson County Wastewater Service Area for sanitary sewers.

Contract District Brochure explains the costs and process of creating a Contract District within the Johnson County Wastewater Service Area for sanitary sewers.

Engineering Public Projects: Lone Elm and 180th

Little Bull Creek #1 - Lateral Sewer District #2

Current Project Status

-A Public Hearing regarding a Special Assessment for Lateral Sewer District No. 2 of Little Bull Creek No. 1 was held July 23.

The method of assessment for this district is the Per Home-site Method. This method recognizes the equal benefit to each home-site and apportions costs equally. All 65 home-sites within Lateral Serwer District No. 2 of Little Bull Creek No. 1 will pay an equal share of the pressure main costs and the 56 homes that had pumps installed by this project will in addition pay equally for the pump system costs.

Any questions about this project should be directed to Johnson County Wastewater's Senior Engineering Technician at 913-715-8556.

Background and Objectives

Following several requests for information meetings by area residents, Johnson County Wastewater staff studied how this area might be best served by sanitary sewers, planned proposed sewers and developed cost estimates. The project will serve approximately 38 acres and 63 properties with low pressure sewers, including all existing homes and any vacant lot that could be developed in the sewer district.

The Kansas Department of Health and Environment (KDHE) administers a State Revolving Fund Loan Program (SRF) and has approved financing for this project. The program allows for a low interest loan from the state for a 20 year period to residents in the proposed district. It also calls for a 40 percent principal forgiveness (essentially, a grant) on the project. This program also offers financing for the installation of the grinder pump unit and connection fees for each home. Project cost sheet 

A petition bearing signatures of owners of 57.9 percent (51 percent is the minimum required) of the land area in the proposed district requesting the installation of low pressure sewers was submitted to the County. A Public Hearing was held on Aug. 25, 2011. On Sept. 22, 2011, the Johnson County Board of Commissioners voted to approve the Lone Elm Pressure Sewer project. On March 8, 2011, the Board approved the KDHE SRF Loan Agreement for the project.

Engineering Public Projects: I/I Study Overview

Current Project Status

All construction phase work was completed in May 2013. Johnson County Wastewater will conduct post-construction flow monitoring, data analysis, and evaluation of the effectiveness of the completed construction through 2014. As part of the post-construction evaluation, Johnson County Wastewater is also evaluating the costs of numerous infiltration and inflow (I/)I removal strategies and will then determine how best to achieve I/I removal in the remaining watershed areas. Ultimately, Johnson County Wastewater's concern is to provide more dependable, cost-effective, and environmentally sound wastewater service to our customers. Please call Johnson County Wastewater's Project Manager at 913-715-8544 with any questions.

Project Description and Objectives

Sanitary sewer system performance within two watersheds, Mission Township Main (MTM1) - located in Prairie Village and Shawnee Mission Turkey Creek (SMTC) -  located in Shawnee, is impacted by the magnitude of wet weather flows (I/I) that enter the sanitary sewer system through cracked or broken pipes, root penetrations, illicit connections, and other deficiencies within the system. The wet weather flows are also the result of illicit connections. This pilot study is needed to fill a critical gap in the data that exists relative to the system improvements necessary to adequately manage I/I, and in so doing meet both customer service goals and respond to evolving regulatory requirements established by the Environmental Protection Agency (EPA). The project included the construction phase which involved repair of the sanitary sewer system to remove I/I.

Lessons learned from the study and construction phases of this project will be used to develop the process and procedures for future removal of public and private sector I/I sources throughout the entire MTM1 and SMTC watersheds.

Study Phase (2009)

The Pilot I/I Project was initiated in March 2009 as a result of ongoing efforts by Johnson County Wastewater to effectively manage wet weather flows in the Nelson service area and is part of the most recent permit renewal process for the Nelson Treatment Complex. The study phase was completed in April 2010. The study involved a series of inspections, including televising of sewer lines and house service laterals, visually inspecting homes and businesses (including internal basement plumbing), manhole inspections, smoke testing, and various other inspections. The project took place in three (3) selected areas suspected of having high I/I:

Turkey Creek
(Shawnee - Vicinity of Quivira Road from Johnson Drive to 50th Street)

  • 677 buildings
  • 50,000 feet of sanitary sewer pipe      
  • 203 manholes

Mission Main
(Prairie Village - Vicinity of Roe Avenue from 75th Street to 79th Street)

  • 288 buildings
  • 20,000 feet of sanitary sewer pipe
  • 111 manholes

Leawood
(Lee Boulevard to State Line Road and 80th Street to 87th Street)

  • 327 buildings
  • 35,000 feet of sanitary sewer pipe
  • 170 manholes

Construction Phase (2011)

The construction activities on this project included rehabilitation and repair of existing sanitary sewer mains and private service lines, and disconnection of sources within buildings and on private property. Construction was completed in May 2013. The two links above to the project study maps show not only pilot I/I rehabilitation areas, but also where the strategies listed below were used:

  • Everything – rehabilitate all main sewers, manholes, service line connections, and service lines; and remove all identified building and inflow sources/defects
  • Private Only – rehabilitate all service line connections and service lines; and remove all identified building and inflow sources/defects
  • Public Only – rehabilitate all main sewers and manholes
  • Typical Comprehensive – rehabilitate main sewers and manholes that are contributing significant amounts of I/I; and remove all identified building and inflow sources/defects
  • Typical Comprehensive + LL – rehabilitate main sewers and manholes that are contributing significant amounts of I/I; remove all identified building and inflow sources/defects; and rehabilitate all service line connections and lower laterals (i.e., service line between main sewer connection and a point between three (3) and 10 feet from main sewer)
  • Control – no rehabilitation work will occur

This project included three (3) general types of construction:

  1. Rehabilitation of Johnson County Wastewater's or public main sewers and manholes
    • Construction of four (4) manholes
    • Rehabilitation of 123 manholes
    • Main sewer open cut excavation replacement (250 ft)
    • Main sewer trenchless (pipe bursting) replacement (274 ft)
    • Main sewer trenchless (CIPP lining) rehabilitation (28,585 ft)
  2. Rehabilitation of private service lines (the pipe that connects private buildings to the main sewer)
    • Cleanout Installations (203)
    • Service line open cut excavation replacement (11 properties)
    • Service line trenchless (pipe bursting) replacement (2 properties)
    • Service line trenchless (CIPP lining) rehabilitation (377 properties)
  3. Remove building and inflow sources/defects. For example, removal of sump pump discharge connections to the sanitary sewer. In some cases, this construction required access inside the home.

Engineering Public Projects: I/I Study - Documents/FAQs

Engineering Public Projects: Gardner Lake

Kill Creek #2, Lateral Sewer District #1

Current Status

The construction of the Gardner Lake Low Pressure Sewer project is complete. JCW staff is currently working on closeout items with the consulting engineer including record drawings. As soon as all items are completed by the engineer and all costs associated with the project have been paid, an apportionment hearing will be scheduled. JCW anticipates this public hearing will be held early this summer. Once a date has been set, all the property owners within Lateral Sewer District No.1 of Kill Creek No. 2 will be notified by mail of the hearing. At the public hearing, staff will explain the breakdown of all project costs that will be apportioned to each property.

This is the estimated project cost sheet.

  • ADDITIONAL FUNDING INFORMATION: On June 18, 2015, a resolution to authorize additional funds to provide low pressure sewers to serve Lateral District No. 1 of Kill Creek No. 2 (LSD 1 of KC02) was presented to the Johnson County Board of Commissioners. The additional amount was $2,403,893, revising the total project authorization to an amount not to exceed $10,735,671. At the same meeting, the Board voted to authorize a contract with J&N Utilities, Inc., to construct Lateral Sewer District No. 1 of Kill Creek No. 2 for an amount not to exceed $7,409,542. Electrical Associates LLC was also authorized to construct the residential electrical portion of Lateral Sewer District No. 1 of Kill Creek No. 2 for an amount not to exceed $537,327.80. Once all contracts are signed, a pre-construction conference will be held with the contractors and a Notice to Proceed will be issued. Construction is anticipated to begin in August 2015. This link takes you to a video of the June 18 BoCC meeting.
  • Please call Johnson County Wastewater's Senior Engineering Technician at 913-715-8556 with any questions about the project or Low Pressure Sewers (LPS).

Video Recording - Info Meeting - Study Area No.1 of Kill Creek Sewer District No.2 4-2011

Background and Objectives

Following three requests for information meetings (the required number) by area residents, Johnson County Wastewater staff studied how this area might be best served by sanitary sewers, planned proposed sewers, and developed cost estimates. The project will serve approximately 85 acres and 352 properties around the Gardner Lake area with LPS. The proposed district consists of a residential neighborhood of 279 homes which are served by septic tanks. These sewers would provide service to all existing homes and vacant lots that could be developed in the proposed sewer district. The link above shows the proposed sewer district with the main lines.

The Kansas Department of Health and Environment (KDHE) administers a State Revolving Fund Loan Program (SRF) and has approved financing for this project. The program allows for a low interest loan from the state for a 20 year period to residents in the proposed district. It also calls for a 40 percent principal forgiveness (essentially, a grant) on the project. This program also offers financing for the installation of the grinder pump unit and connection fees for each home. Those properties that are “not assessed” will pay nothing. This color-coded map shows which properties are and which are not assessed.

A petition bearing signatures of owners of 57.9 percent (51 percent is the minimum required) of the land area in the proposed district requesting the installation of low pressure sewers was submitted to the County. A Public Hearing was held on Aug. 22, 2011. On Sept. 15, 2011, the Johnson County Board of Commissioners voted to approve the Gardner Lake Pressure Sewer Project. On March 8, 2012, the Board approved the KDHE SRF Loan Agreement for the project.

Project Facts

  1. Consistent with other similar projects, Johnson County Wastewater’s capital fund will pay for some of the proposed project costs. In this case, it is estimated that the department will pay for approximately 63 percent of the overall project cost to construct the main lines. This reduces the overall assessment for each property owner. The remaining costs will be paid for by a benefit district. The boundary of the proposed district is shown on the two map links above.
  2. Low pressure sewers are the only type of sewers feasible for this proposed area due to the topography of the land.
  3. Johnson County Wastewater provides 24 hour service to homes on grinder pumps via a contract provider. There is no separate charge for this service. During power outages longer than four (4) hours, Johnson County Wastewater's contractor is required to power individual units with a portable generator.
  4. Based on the current alignment, this project will consist of:
    1. Total estimated project cost prior to 40 percent principle forgiveness
      •  $4.6 M sewer mains, $6.1 M LPS pumps, $1.0 M connection costs
      •  Estimated length of sewer line: approximately 30,000 feet
    2. Estimated project cost to each assessed property after 40 percent principle forgiveness
      •  $191 (main) + $992 (pump) per year if spread over 20 years. See project cost sheet link above for more details and additional costs.

Key Contacts

Senior Engineering Technician, 913-715-8556
New Development Engineer, 913-715-8532

 

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