Regional Water System
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Leonard Water Treatment Plant (WTP) - South 25kV Overhead Electrical Loop; Project No. 101-0669-25; Engineering Services Agreement - Final Engineering
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SUBJECT
recommendation
Authorize funding in the amount not-to-exceed $388,300 to Fannin County Electric Cooperative (FCEC) for final engineering services associated with providing electric power service to the Leonard Water Treatment Plant (Leonard WTP) southside for future expansions; and Leonard WTP High Service Pump Station-South.
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PURPOSE
The purpose of this project is to expand the electrical service to accommodate the expansion of the Leonard WTP to its ultimate 280 MGD capacity. FCEC will design the expansion of the existing electrical substation at Leonard WTP, which transforms the 138-kilovolt transmission voltage to a 25-kilovolt distribution voltage.
RECOMMENDATION
The Executive Director and NTMWD staff recommend the Board of Directors to authorize the Executive Director to execute a final engineering agreement as follows:
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Electric Service: |
Fannin County Electric Cooperative (FCEC) |
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Scope: |
Final engineering services agreement |
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Project: |
No. 101-0669-25, Leonard WTP - South 25kV Overhead Electric Loop |
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Amount: |
$388,300 |
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Committee: |
This will be a Champion Update at the June 25, 2025, Water Committee meeting |
DRIVER(S) FOR THIS PROJECT
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Strategic Objective: |
1.2 Successfully Deliver Capital Program 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
The Leonard WTP has an ultimate planned capacity of 280 MGD. Projected demand growth in the District's service area requires Leonard WTP to have a treatment capacity of 210 MGD no later 2030.
FCEC will design the expansion of the existing electrical substation at Leonard WTP, which transforms the 138-kilovolt transmission voltage to a 25-kilovolt distribution voltage. Substation will be equipped with transformers and required equipment to serve the new south power loop.
PROJECT PURPOSE
• FCEC will provide an electrical service of 25 kilovolts (kV) to the Leonard Water Treatment Plant (WTP) south parcel for future expansions.
PROJECT COMPONENTS
• The scope of the agreement with FCEC includes the following preconstruction engineering services:
1) Design two overhead circuits and expand the substation to provide permanent power needs to the Leonard Water Treatment Plant south parcel and the High Service Pump Station South. The permanent power system is designed to carry the ultimate load required by the plant at the buildout capacity of 280 MGD.
o Control Enclosure - drawings of existing components will be modified where necessary to support the transformer, circuit switcher, and circuit breaker additions. A new relay panel will be required for the new transformer and circuit switcher.
o AC/DC Power System - Modification to AC and DC panel schedules as necessary for the proposed equipment additions.
o Relay Panels - elevations, wiring diagrams, and details for the new relay panels and relay panel modifications as necessary will be prepared.
o Transformer Drawings - provide connection diagrams for new circuits and current transformer (CT) connections.
o Distribution Feeders - Plans and details for the interconnection of two new overhead distribution feeders will be provided.
o Circuit Schedule - drawings showing circuits and circuit routing as necessary for the proposed equipment additions will be provided.
o Grounding - Grounding improvements will be limited to the connection of new equipment to the existing ground grid.
2) Development of cost estimates and timelines for the following:
o The construction of electrical facilities, including transformer connections and distribution lines to provide service to NTMWD facilities.
o Construction of the electrical facilities will be presented to the Board of Directors at a future date.
3) Upon completion, FCEC and NTMWD will conduct final accounting of all project costs and all unused funds will be returned to NTMWD. Similarly, if the actual cost is higher than the estimated cost advanced to FCEC by NTMWD, FCEC will issue an invoice to NTMWD for the unpaid actual cost following a change order action.
ENGINEERING SERVICES FEE
DESCRIPTION COST
Final engineering design services $388,300
Total $388,300
FUNDING
Funding in the amount of $388,300 to Fannin County Electric Cooperative is to be made available in the Regional Water System Capital Improvement Fund.