Regional Water System
title
Leonard Treated Water Pipeline No. 2 Segment D; Project No. 101-0684-26; Engineering Services Agreement - Final Engineering Design
end
SUBJECT
recommendation
Authorize funding in the amount of $4,583,900 to Freese and Nichols, Inc. for an engineering services agreement for final engineering design of the proposed Leonard Treated Water Pipeline No. 2, Segment D.
end
PURPOSE
This project will support the delivery of additional treated water from the Leonard Water Treatment Plant (WTP) to the north and east regions of the District’s service area. Leonard Treated Water Pipeline No. 2 (TWPL2) will consist of approximately 130,400 linear feet (LF) of 84-inch diameter pipe from the Leonard WTP High Service Pump Station (HSPS) to the McKinney area. Design will be performed in two segments (Segment D and Segment E) by two engineering firms.
Segment D is approximately 72,340 LF is between the Leonard WTP HSPS-South to Collin County Road 500, in the vicinity of Blue Ridge where it will connect to Segment E (separate Board action on this agenda).
RECOMMENDATION
The Executive Director and NTMWD staff recommend the Board of Directors authorize the Executive Director to execute an engineering services agreement (ESA) as follows:
|
Consultant: |
Freese and Nichols, Inc. (FNI) |
|
|
|
|
Scope: |
Final Engineering Design |
|
|
|
|
Project: |
No. 101-0684-26, Leonard Treated Water Pipeline No. 2, Segment D |
|
|
|
|
Amount: |
$4,583,900 |
|
|
|
|
Committee: |
This will be an item on the February 25, 2026, Water Committee agenda |
DRIVER(S) FOR THIS PROJECT
|
Strategic Objective: |
1.2 Successfully Deliver Capital Program 1.4 Reliable and Resilient Systems |
|
☐ Regulatory Compliance |
☐ Asset Condition |
|
☒ Capacity |
☒ Redundancy/Resiliency |
|
☐ Relocation or External Requests |
☐ Operational Efficiency |
|
☐ Safety |
☐ Administrative |
|
☐ Policy |
☐ Other _____________ |
BACKGROUND
This project has been under consideration since the 2010 Capital Improvement Plan (CIP) Updates and is a part of the Bois d’Arc Lake (BDL) program. The Leonard Water Treatment Plant (WTP) Phase III expansion project is currently planned to increase the treatment plant’s capacity. In addition, the firm pumping capacity will increase with the construction of Project No. 101-0603A-22, HSPS-South. The maximum pumping capacity for both HSPS-North (HSPS-N) and HSPS-South (HSPS-S) will be 175 MGD each after the expansion. To support these improvements, a new transmission pipeline is required to deliver additional treated water to the North System. The District currently owns a 120-foot-wide easement, which was planned to accommodate the two pipelines and a fiber optic communications cable. The overall project is approximately 130,400 linear feet of a parallel 84- inch pipeline extending from the Leonard WTP HSPS-South to the McKinney No. 3 to McKinney No. 4 Pipeline. To facilitate design and construction, the project was divided into Segments D and E.
PROJECT PURPOSE - Segment D
• Allows for full utilization of Leonard Water Treatment Plant production capacity.
• Deliver additional treated water to the North and East Systems.
• Provide redundancy, resiliency and ability to perform assessment and maintenance of both pipelines, with the capability to always have one pipeline in service at all times.
• The planning level opinion of probable construction cost (OPCC) for Segment D is approximately $144,736,000. The engineer will provide an updated OPCC as final engineering progresses.
• Pipeline is planned to be in service by 2030.
PROJECT COMPONENTS
• Parallel pipeline horizontal alignment, pipeline vertical profile and associated appurtenances of approximately 72,340 LF (~14 miles) of 84-inch diameter water pipeline from Leonard WTP HSPS-South to around Collin County Road (CR) 500, where it connects to Segment E.
• Connections to the Leonard WTP HSPS-South and Segment E in the vicinity of CR 500.
• Roadway, railway, utility and creek crossings.
• Determine the opinion of probable construction cost for the Segment D pipeline.
• Transient and surge analysis of the entire Leonard TWPL2.
• Design of cathodic protection system for the entire pipeline.
• Right of way services for temporary and access easements.
BASIC SERVICES
• Conduct a review of pipeline alignment to identify areas that may result in alignment or grade changes.
• Perform design at 60% and 90% level and issue final bid documents.
• Provide 60%, 90% and 100% opinions of probable construction cost.
• Prepare and coordinate connection details with the design consultant for the Segment E portion of the Leonard Treated Water Pipeline No. 2.
• Prepare technical specifications and incorporate NTMWD’s standards into bidding documents.
• Coordinate requirements of various agencies and utility companies regarding roadway, railway, utility, and creek crossings.
• Design cathodic protection for the entire pipeline and coordinate with Segment E design engineer for implementation of the corrosion design.
• Bid phase services.
SPECIAL SERVICES
• Geotechnical engineering services
• Subsurface utility engineering (SUE) services
• Environmental/Cultural and Archeological Services
• Topographical Survey Services
• Surge Analysis of the entire Leonard TWPL2
• Right-of-way acquisition services
• Texas Water Development Board (TWDB) Support for State Water Implementation Fund for Texas (SWIFT) for the entire Leonard TWPL2
CONSULTANT SELECTION PROCESS
• Five qualified engineering firms were interviewed, and FNI was deemed as the most highly qualified firm for the Segment D portion of the pipeline project.
ENGINEERING SERVICES FEE
Description Amount
Basic Services $2,441,600
Special Services $2,142,300
Requested Amount $4,583,900
FUNDING
Funding to Freese and Nichols Inc. in the amount of $4,583,900 is to be made available utilizing the Regional Water System Extendable Commercial Paper (ECP) Program as the appropriation source; issuance of ECP notes will occur as cash needs arise.