Memorandum

City of Lawrence

Utilities Department

TO:	David L. Corliss – City Manager Cynthia Wagner - Assistant City Manager Diane Stoddard - Assistant City Manager
FROM:	Melinda Harger – Utilities Engineer
CC:	Dave Wagner – Director of Utilities Mike Lawless – Deputy Director of Utilities Philip Ciesielski – Assistant Director of Utilities Beth Krishtalka – Assistant to Director Mark Hegeman – Utilities Operations Superintendent Dave King – Utilities Maintenance Superintendent
Date:	April 2, 2014
RE:	Agenda Item – Execute a Supplement to the Existing Engineering Services Agreement for Project UT1304 Wakarusa Wastewater Treatment Plant and Conveyance Corridor Facilities

Please include the following item on the City Commission Agenda for consideration at the April 8, 2014 meeting:

Authorize the City Manager to Execute Supplemental Agreement No. 3, in the amount of $71,983.00, to the Existing Engineering Services Agreement with Black & Veatch Corporation for Project UT1304 Wakarusa Wastewater Treatment Plant and Conveyance Corridor Facilities.

Project Description 

The 2012 Wastewater Utilities Master Plan and Capital Improvements Program recommend the construction of the Wakarusa Wastewater Treatment Plant (WWTP) and Conveyance Corridor facilities to be online in 2018. These improvements are required to mitigate wet weather surcharging of sanitary sewers along the 31^st Street Corridor, provide for relief of wet weather overloading at the existing WWTP, and provide additional organic treatment capacity to provide for future growth of the community.

The recommended Wakarusa WWTP improvements include 2 MGD of organic treatment and 6 MGD of wet weather treatment. The Conveyance Corridor improvements include an 11 MGD pump station facility in the area of 31^st and Louisiana and required forcemains and gravity sewers to convey sewerage to and from this point to the Wakarusa WWTP.

Project Status

March 12, 2013 – City Commission authorized staff to advertise a Request for Proposals for Engineering Services for the Wakarusa Wastewater Treatment Plant and Conveyance Corridor Facilities. 

July 23, 2013 – City Commission authorized execution of the engineering services agreement with Black & Veatch Corporation for Phase 100/150 in the amount of $299,000.  Phase 100/150 for initial project design services included data acquisition, concept review, alternate force main evaluation, SLT coordination, regulatory review, and platting for the pump station and treatment plant sites.

October 22, 2013 – City Commission authorized execution of Supplement No. 1 with Black & Veatch Corporation in the amount of $1,566,900.  This supplemental agreement included [Phase 200] preliminary design for the WWTP and pump station as well as [Phase 300/350] final design of the force mains, roads adjacent to the WWTP, and WWTP site fill. 

December 16, 2013 – Planning Commission voted to approve the preliminary plat for the Wakarusa Wastewater Treatment Plant Addition.

December 18, 2013 – Planning Commission voted to approve the rezoning and preliminary plat for Pump Station 10.

January 7, 2014 – City Commission authorized execution of an agreement with Baker University for easements related to the Wakarusa Wastewater Treatment Plant and Conveyance Corridor Facilities. 

March 4, 2014 – City Commission acknowledged the final plat for Pump Station 10. 

March 11, 2014 – City Commission accepted dedication and vacation of easements and rights-of-way associated with the final plat for the Wakarusa Wastewater Treatment Plant Addition.

March 11, 2014 – City Commission set a bid date of April 1, 2014 for Project UT1304 Contract 1 Wakarusa Conveyance, Haskell Avenue Casing Pipe.

March 24, 2014 – City Manager executed Supplement No. 2 with Black & Veatch Corporation in the amount of $14,465.  This supplemental agreement adds a facility space needs analysis to the scope of work.

Project Status

Staff has negotiated an appropriate scope and fee for additional preliminary design tasks and detailed design of the Baker Wetlands enhancements, including a pedestrian footbridge, trails, and parking areas.  The fee for this supplemental agreement is $71,983. The scope includes the following:

Phase 200 – Preliminary Design

• Pump Station 10 Additional Tasks – gas line relocation and new Naismith interceptor sewer

Phase 300– Detail Design for Baker Wetlands Enhancements

• Pedestrian Bridge – geotechnical and surveying services, permitting, in-progress plan review sets provided to City at 90% of design, final construction plans and specifications, and opinion of probable construction costs
• Trails and Parking Areas – surveying, permitting, in-progress plan review sets provided to City at 90% of design, final construction plans and specifications, and opinion of probable construction costs

Project Schedule

We anticipate detailed design for the Baker Wetlands enhancements will be completed this summer in order to allow the pedestrian bridge and a trail section to be constructed concurrently with the force main installation.  The remaining trails and parking areas will be constructed later in coordination with the SLT construction progress. 

Project Funding

The project is included in the Department of Utilities 2013 Rate Plan and Capital Improvement Program.

Action Request

Authorize the City Manager to Execute Supplemental Agreement No. 3, in the amount of $71,983.00, to the Existing Engineering Services Agreement with Black & Veatch Corporation for Project UT1304 Wakarusa Wastewater Treatment Plant and Conveyance Corridor Facilities.

Thank you for your assistance. Please advise if you have any questions.