Ozone Gen Cleaning

The City of Denton (the City) is requesting submissions to contract with an individual or business with considerable experience in providing goods or services of this solicitation. The responses and the cost solutions shall be submitted to the City of Denton in a sealed submission.

The Contractor shall clean the internals of two (2) ozone generator vessels, replace all dielectric electrode assemblies and associated hardware, then test, purge and return both generators to service.

• Site: Lake Ray Roberts Water Treatment Plant, 9401 Lake Ray Roberts Dam Road, Aubrey, TX 76227
• Equipment: Two (2) Wedeco PDO-6000 ozone generators with associated power supply units (PSUs), original Wedeco project no. 20645
• Purpose: Restore ozone production capacity and energy efficiency

The Contractor shall furnish all materials, labor, tools, equipment and supervision to complete the following on each of the two generators.

Materials (per generator)

• New Wedeco EFFIZON® GC electrode assemblies, full vessel set, 1:1 replacement for the existing electrodes
• Connecting links, nuts and Teflon (PTFE) spacers as needed.
• Teflon end gaskets / door gaskets as needed.
• Sight glass gaskets as needed.
• Transformer HV bushings and HV bushing gaskets as needed.
• Cleaning materials, including projectiles for pneumatic tube cleaning and denatured alcohol as needed.
• All consumables, rags, PPE and temporary protection as needed.

Work requirements

The Contractor is responsible for its own means and methods. At a minimum, the work on each generator shall include:

• Safely remove the generator from service and isolate and lock it out in coordination with plant staff.
• Remove all existing electrode assemblies and record the location of any failed or damaged ones.
• Clean the vessel tubes and internal components so they are free of debris and contamination.
• Report any corrosion, damage or cooling water intrusion found inside the vessel to the Owner before reassembly.
• Install new EFFIZON® GC electrode assemblies and the new hardware and gaskets, per the manufacturer's requirements.
• Purge, test and return the generator to service.
• Remove all debris and leave the work area clean.

Additional work

If the Contractor finds conditions needing parts or labor beyond this scope, it shall stop that item, notify the Owner in writing with a cost and time estimate, and proceed only on written approval.

Warranty

• Workmanship: Minimum 1 year from acceptance of each generator.
• Dielectrics: Minimum 10-year warranty on the EFFIZON® GC electrode assemblies, matching the manufacturer's guarantee. The warranty shall cover replacement parts and the labor to remove, replace, reassemble and restart.

Submissions accepted via IONWAVE or hard copy ONLY (no emails). Questions must be submitted by the deadline via IONWAVE only (no emails/no phone calls)

Hard copy submittals must be in a sealed envelope with the solicitation number and name, delivered to City of Denton, Materials Management, 901B Texas Street, Denton, TX 76209. Hard copy submissions shall include one (1) original signed by an officer authorized to bind the firm and a USB flash drive with all submittal documents.

Scoring

• Overview of firm and past experience: 45%
• Key Personnel: 10%
• Work Plan/Project Approach: 20%
• Price, Total Cost of Ownership: 25%

It is the intention of the City of Denton to award a contract for one (1) year, effective from date of award. The City and the Supplier shall have the option to renew this contract for an additional two (4) one-year periods.

The information included in the solicitation response(s), and any cost information obtained from a negotiation process, remain valid for 120 days from the response due date or until the contract is approved by the governing body.