Subject:
Title
Emergency Remediation and Rehabilitation with PCL Construction, Inc. and Gulf Coast Aqua Dams for Dunn WRF Depression West of RCW Pond
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Recommended Action:
Recommended Action
Approval by the County Administrator of the emergency remediation and rehabilitation with PCL Construction, Inc. and Gulf Coast Aqua Dams for Dunn WRF Depression West of RCW Pond
• Emergency services provided by PCL Construction to provide remediation services to stabilize the west slope of the RCW pond.
• A small hole/depression area opened in the RCW pond west slope access road on July 9, 2025. Soil borings were previously performed in this area to 100 feet below grade due to possible slope failure on the west bank.
• Not-to-exceed amount of $5,000,000.00 for this emergency request.
• An Aqua-Dam will be constructed in the RCW pond to isolate the west bank of the pond such that monitoring of the pond bottom can be observed during grouting operations. The Aqua-Dam will be 26 feet high so that the RCW pond can remain in service. The existing 60 mil HDPE liner that is exposed behind the Aqua-Dam will be replaced following the grouting operations. Replacement of the liner is a planned capital project, and replacement cannot be completed until the depression is remediated.
• This contract will utilize a direct purchase for the Aqua Dam from Gulf Coast Aqua Dams for additional tax savings.
• Funding for these emergency services is being requested as a FY25 Administrative Amendment (Granicus 25-0672D) and a FY26 Post-proposed budget adjustment, which will be presented to the County Administrator and Board of County Commissioners for approval. Contingent upon approval of these budgetary measures, funding would be available under Dunn Pond Liner Replacement Project 003431A, included in the Capital Improvement Plan, funded by the Sewer Renewal and Replacement Fund in the amount of $10,624,000.00.
Contract No. 25-0843-E in the amount of $5,000,000.00.
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Strategic Plan:
Ensure Public Health, Safety, and Welfare
2.1 Provide planning, coordination, prevention, and protective services to ensure a safe and secure community
Deliver First Class Services to the Public and Our Customers
5.3 Ensure effective and efficient delivery of county services and support
Summary:
Approval of emergency request an Aqua-Dam will be constructed in the RCW pond to isolate the west bank of the pond such that monitoring of the pond bottom can be observed during grouting operations. The Aqua-Dam will be 26 feet high so that the RCW pond can remain in service. The existing 60 mil HDPE liner that is exposed behind the Aqua-Dam will be replaced following the grouting operations.
Background/Explanation:
A small hole/depression area opened up in the RCW pond west slope access road on July 9, 2025. Soil borings were previously performed in this area to 100 feet below grade due to possible slope failure on the west bank.
Fiscal Impact:
Contract in the not-to-exceed amount: $5,000,000.00
Funding for these emergency services is being requested as a FY25 Administrative Amendment (Granicus 25-0672D, realigning funds from Dunn Electrical Improvements Project 003409A to Dunn Pond Liner Replacement Project 003431A, in the amount of $4,000,000.00.
Additionally, a Post-proposed budget adjustment will be presented to the County Administrator and Board of County Commissioners, increasing the Dunn Pond Liner Replacement Project 003431A FY25 Estimate to $4,000,000.00 allowing for the restatement of any unspent funds, increasing the FY26 appropriation by $1,000,000.00 with an offsetting decrease to Sewer Renewal and Replacement Fund Reserves. The post-proposed budget adjustment will also move the planned Future Financing allocation up from FY28-FY29 to FY27-FY28 and dedicate Sewer Funds to the project, while identifying $4,355,000.00 in Sewer Funds under the Chesnut Park Aquifer Storage and Recovery Project 004364A as Future Financing in FY28-FY29.
Delegated Authority:
Authority for the County Administrator to approve this emergency purchase is granted under Code Section 2-181.
Staff Member Responsible:
Jeremy Waugh, P.E., Director, Utilities
Merry Celeste, Purchasing Director, Administrative Services
Joe Lauro, Director, Administrative Services
Partners:
N/A
Attachments:
Estimate