Regional Water System
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North System Air Valve Improvements; Project No. 101-0442-16; Additional Engineering Services
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SUBJECT
recommendation
Authorize additional funding to an existing engineering services agreement (ESA) for engineering services for the North System Air Valve Improvements project, Phase III.
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PURPOSE
This project addresses upgrading air release valves (ARVs) to current Texas Commission on Environmental Quality (TCEQ) standards, upsizing based on surge modeling, and includes condition related improvements.
RECOMMENDATION
The Executive Director and NTMWD staff recommend the Board of Directors authorize the Executive Director to execute additional engineering as follows:
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Consultant: |
Freese and Nichols, Inc. (FNI) |
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Scope: |
Additional Engineering Services |
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Project: |
101-0442-16, North System Air Valve Improvements |
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Amount: |
$411,775 |
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Strategic Objective: |
1.3 Meet or Surpass Regulatory Requirements; 1.4 Reliable and Resilient Systems |
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Committee: |
This will be an item on the April 24, 2024, Water Committee meeting agenda |
DRIVER(S) FOR THIS PROJECT
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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
• In October 2017 the Board approved Administrative Memorandum No. 5019 authorizing an Engineering Services Agreement with FNI to provide engineering design and coordination services on Project No. 101-0442-16, North System Air Valve Improvements, Phase I.
• In March 2022 the Board approved Consent Agenda Item No. 22-03-05 authorizing Additional Engineering Services for Phase II.
• Project was divided into three construction phases in attempt to make bid packages more attractive:
o Phase I design - Inspection and prioritization of 239 North System ARVs of which 198 were identified as needing some level of improvement.
o Phase I construction package - The construction of 66 ARVs were completed in June 2022.
o Phase II construction package - The construction of 36 ARVs were approved by NTMWD Board in September 2023.
o Phase III construction package - Consists of 96 ARVs.
PROJECT PURPOSE
• The Texas Commission on Environmental Quality (TCEQ) rules and regulations for design of water transmission systems require venting of air release valves above grade. Some existing NTMWD ARV installations require installation of venting to meet TCEQ requirements.
• Some NTMWD ARV installations require upsizing and condition related improvements.
PROJECT COMPONENTS
• The North System Air Valve Improvements, Phase III project will replace 96 existing ARVs, redirect venting, and repair/upsize associated manholes, as needed.
• The Consultant will develop the designs for 96 ARV locations to the 100% level in conjunction with easement acquisition.
• Survey field work and documentation for easements will need to be performed for 21 locations.
• The planning level estimated construction cost for the Phase III ARVs is $11,053,000.
ADDITIONAL SERVICES
• Project management
• Design services
• Bid phase services
• Survey and easement documents
ADDITIONAL ENGINEERING SERVICES FEE
Description Amount
Original ESA (Administrative Memorandum No. 5019) $799,850
Prior Additional Services $540,605
Proposed Additional Services Amount $411,775
Revised ESA Amount $1,752,230
FUNDING
Additional funding to Freese and Nichols Inc in the amount of $411,775 is to be made available in the Regional Water System Capital Improvement Fund.