Regional Wastewater System
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Floyd Branch Regional Wastewater Treatment Plant (RWWTP) Peak Flow and Ultraviolet (UV) Improvements, Project No. 301-0610-22; Tabulation of Bids, Award of Contract, Engineering Services Agreement, and Authorize Inspection Services
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SUBJECT
recommendation
Authorize award of a construction contract in the amount of $36,981,000 to Felix Construction Company, authorize an engineering services agreement with CDM Smith, Inc., in the amount of $761,868 for construction phase engineering services and authorize internal inspection services in the amount of $720,540.
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PURPOSE
The purpose of this project is to address wet weather flows and limitations of the existing facilities to ensure meeting the discharge permit during a peak flow event.
RECOMMENDATION
The Executive Director and NTMWD staff recommend the Board of Directors authorize the award of a contract and services as follows:
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Contractor: |
Felix Construction Company |
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Consultant: |
CDM Smith, Inc. |
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Scope: |
Construction Contract, Engineering Services During Construction, and Internal Inspection Services |
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Project: |
No. 301-0610-22; Floyd Branch RWWTP Peak Flow and UV Improvements |
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Amount: |
Construction Contract: $36,981,000 Engineering Services During Construction: $761,868 Internal Inspection Services: $720,540 |
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Committee: |
This will be an item on the December 17, 2025, Wastewater Committee meeting agenda |
DRIVER(S) FOR THIS PROJECT
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Strategic Objective: |
1.1 High Quality Services 1.4 Reliable and Resilient Systems |
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☐ Regulatory Compliance |
☐ Asset Condition |
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☒ Capacity |
☒ Redundancy/Resiliency |
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☐ Relocation or External Requests |
☒ Operational Efficiency |
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☐ Safety |
☐ Administrative |
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☐ Policy |
☐ Other _____________ |
BACKGROUND
PROJECT PURPOSE
• The Floyd Branch RWWTP serves the City of Richardson and was originally built in 1952. The RWWTP currently has Texas Commission on Environmental Quality (TCEQ) permit limits of 4.75 million gallons per day (MGD) for annual average daily flow (AADF) and 10 MGD for peak two-hour flow (P2HF).
• The Master Plan for the Floyd Branch RWWTP performed by Plummer Associates, Inc. (NTMWD Project No. 301-0546-19) indicates the AADF is not expected to increase.
• This project consists of two phases. The construction contract for phase I, which included improvements to the Ultraviolet disinfection system, was awarded in May 2023 by Administrative Memorandum No. 5915. Phase I is on schedule to be completed in January 2026. The construction contract for phase II, which includes improvements to the peak flow system, is now being presented for the Board’s consideration under this Administrative Memorandum.
• Increases in peak flows will be handled by a peak flow storage system, which will be sized based upon historical wet weather events.
PROJECT COMPONENTS
• Construct process-related improvements, including:
o Headworks
o Influent Pump Station
o Wastewater Treatment Screens
o Peak Flow Storage Tank
• Demolition of abandoned facilities
TABULATION OF BIDS
Sealed bids were received at 2:00 p.m. on Thursday, November 6, 2025, as tabulated below:
Bidder Total Bid Recommendation
Felix Construction Company $36,981,000 Lowest responsible bid Recommended for Award
Harper Brothers Construction, LLC $57,589,000
ENGINEER’S OPINION OF $38,100,000
PROBABLE COST
LOWEST RESPONSIBLE BIDDER HISTORY
Felix Construction Company has successfully completed or is currently constructing several similar projects for the NTMWD:
• Project No. 101-0572-20, North Garland Ground Storage Tank (currently in construction)
• Project No. 101-0338-13, Meter Vault Standardization, Set Point Control, Phase III; completed in May 2025
• Project No. 309-0609-22, Stewart Creek West Wastewater Treatment Plant Primary Clarifier and Blower Improvements; completed in May 2025
Based on their standing as the lowest responsible bidder, the information provided, and reports by the supplied references, the NTMWD staff and CDM Smith, Inc., recommend award of the contract to Felix Construction Company.
ENGINEERING SERVICES AGREEMENT
Engineering services during construction for the Floyd Branch RWWTP Peak Flow Improvements are based on a planned 25-month construction duration in the amount of $761,868. These services include:
• Monthly project management and coordination
• Review of shop drawing submittals, request for information, proposed change orders, and operation and maintenance (O&M) manuals
• Review the contractor’s monthly progress payment requests
• Site visits and construction meetings
• Startup assistance and substantial and final completion observations
• Development of record drawings and updated equipment list
• Participate in factory acceptance testing and functional demonstration testing
INSPECTION SERVICES
NTMWD will utilize its own inspection staff to cover all inspection tasks. The cost to NTMWD related to this internal inspection coverage is estimated at $720,540.
FUNDING
Funding in the amount of $36,981,000 to Felix Construction Company, $761,868 to CDM Smith, Inc., and $720,540 for NTMWD Internal Inspection Services will be made available utilizing the Regional Wastewater System Extendable Commercial Paper (ECP) Program as the appropriation source; issuance of ECP notes will occur as cash needs arise.