Lift Station Rehabilitation Project No. 1

Lift Station #4, located at 33120 Washington Avenue (Laguna Heights), is the final location where work is pending completion. Contractor has been working on the tie-ins of existing sewer lines to new wetwell. During this process, an existing manhole had to be removed and replaced via a field change. A broken valve had to be replaced at Lift Station #3, located at 110 Wilson St., to isolate receiving manhole at LS#4 site. Bypass operations began at existing manhole on Washington Ave to allow the Contractor to proceed with work. Contractor will continue with final site work and punchlist items after tie-ins are done.

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Abbreviations:

MF – Microfiltration

GST – Ground Storage Tank

HSPS – High Service Pump Station

EQ Tank – Equalization Basin

TWDB – Texas Water Development Board

PER – Engineering Feasibility Report

PS&E – Plans, Specifications, and Construction Cost Estimate

EST – Elevated Storage Tank

RWTPS – Raw Water Transfer Pump Station

WP – Water Plant

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Water Treatment Plant #1 Improvements (Port Isabel)

These construction improvements will replace the existing Water Treatment Plant #1 conventional sand filters, steel ground storage tanks, and high service pump station with a 5 million gallons per day (MGD) membrane treatment facility including the following improvements:

• New raw water intake structure and pumps at Reservoir No. 1.

• New microfiltration (MF) treatment system housed in a new facility,

  • Microfiltration building, EQ Tank, and Neutralization Tank foundations are complete. Masonry work/wall construction is in progress. Metal building and seawater process modifications have been released for fabrication. Materials have been upgraded to prepare for a future diversion from the Laguna Madre Bay. Equipment has a scheduled delivery date of October 18, 2024. Start-up and commissioning will use surface water from the Rio Grande with Final Completion scheduled for September 28, 2025.

• New high service pump station,

• Chemical storage, containment, pumps, and piping systems,

• Yard piping and associated valves, structures, and appurtenances,

• Associated electrical, instrumentation, and Supervisory Control and Data Acquisition (SCADA) improvements,

  • Electrical duct banks are being installed & coordinated with AEP for electrical service.

• Associated mechanical, structural, architectual, and plumbing improvements, and

• 1.5 million gallon (MG) pre-stressed concrete ground storage tank (GST).

  • Piers are completed for Controlled Modulus Column (CMC) Foundations. Construction of GST will proceed accordingly.

 

Laguna Madre Water District obtained additional funding through Texas Water Development Board’s (TWDB’s) Drinking Water State Revolving Fund. District is currently providing responses to Texas Water Development Board Plans and Technical Specifications review comments. District will proceed with requesting Bids for construction upon TWDB Plan Review approval for the following construction contracts:

• CID 01: Water Plant 2 / Reservoir No. 3 Raw Water Transfer Pump Station

• CID 02: Water Plant No. 2 High Service Pump Station

• CID 03: Water Plant No. 1 Elevated Storage Tank No. 6

• CID 04: Emergency Standby Generator

 

On Monday, July 23, 2024, Texas Water Development Board approved Laguna Madre Water District’s request to authorize $10,000,000 in financing from the State Water Implementation Revenue Fund for Texas for planning, acquisition, and design of a seawater desalination plant project. The project involves a new Intake Structure at the Port Isabel Turning Basin and additional treatment improvements to supplement Rio Grande water supply with seawater diversions from the Laguna Madre Bay.

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Long Island Village Water and Sewer Improvements

Construction contract for Sanitary Sewer, Water and Paving Improvements for Long Island Village Seaside Living Community was awarded on July 24, 2024. Ratification by LMWD Board of Directors is scheduled for consideration and approval on August 14, 2024. A construction cost of $18,992,364 will provide new waterlines, wastewater collection system, yardlines, and pavement for the entire Condominium Owners Association.