Permanent Disinfection Boosting Systems at La Granada (CI 5771) and Lang Ranch (CI 5791) Reservoirs

To improve the enhanced wildfire resiliency of City's vital infrastructures, City will be installing permanent disinfection boosting systems at its water reservoirs.

The proposed improvements at the La Granada and Lang Ranch reservoirs (Attachment A) will include all civil, structural, mechanical, electrical, and finishing work necessary to complete the installation and commissioning of two (2) permanent chemical disinfection boosting systems.

The work includes, but is not limited to, procurement and installation of the disinfection boosting systems, chemical piping, chemical storage and containment systems, canopy structures, and all appurtenant improvements required for a fully operational system at each project site. The project also includes removal and relocation of existing equipment as required.

The installation of a permanent disinfection boosting system at La Granda and Lang Ranch Reservoirs will ensure that water disinfection levels can be maintained in these reservoirs to provide a high level of water quality to City’s residents and businesses.

Background

The City’s Public Works Department manages the City’s water storage and distribution facilities consisting of 11 Calleguas turnouts (connections to the Calleguas Municipal Water District supply), four hydropneumatic pump stations, 16 pump stations, 16 reservoirs, and two boosting stations. Many of these sites need improvements to address enhanced wildfire resiliency, site drainage, accidental tank overflow containment, pump and electrical equipment enclosures, fencing, and the addition of emergency generators and disinfection boosting stations.

In December 2023 a comprehensive Citywide Water Storage Optimization Study was concluded, addressing water quality improvements within the City's water distribution network due to reduced demand and longer water age in the reservoirs after the 2022 drought. The study identified La Granda and Lang Ranch Reservoirs as high-priority sites for the installation of a permanent disinfection boosting system to assist with water quality.

Project Details

• Reference ID: 2025/2026-24
• Department: Public Works - CIP
• Department Head: Nader Heydari (Public Works Director)

Important Dates

• Questions Due: 2026-05-21T00:00:00.000Z
• Pre-Proposal Meeting: 2026-05-06T16:00:00.000Z — Lang Ranch Reservoir (2237 Peak Pl.) followed by La Granada Reservoir (2354 Mountain Crest Cir.)

Evaluation Criteria

• Scope of Work or Project Details —

  Please see Contract Documents in the Attachment Section.

• Engineer's Estimate —

  Estimate Amount: $1,776,500.00

Submission Requirements

• Bid Requirements (required) —

  Did you read through and confirm that you met all of the bid requirements?

• Bid Bond Type (required) —

  What type of bid security are you submitting? 

  If you choose to opt out of using Surety2000 to submit an electronic bid bond, then one of the following options must be received by the City Clerk Department, (2100 E. Thousand Oaks Blvd. Thousand Oaks, CA 91362) prior to the bid opening: 

  • Original Hard Copy of the Notarized Bid Bond on City's Bond Form
  • Certified Check
  • Cashier’s Check
  • Cash

  Bidders are fully responsible for ensuring their bid security is received by the City Clerk Department prior to the bid opening. Failure to provide the required bid security, prior to the bid opening, shall cause the bid to be deemed incomplete and therefore non-responsive.

  Please select the type of bid security you are submitting from the following choices:

• Bid Bond Verification Form (required) —

  Please enter your Bid Bond information from Surety2000 below if submitting an electronic bid bond. For the Vendor ID Field, please enter in your company's EIN number.

  When entering the Project ID into Surety2000 for the bond, please ensure that you enter the exact Project ID# (including punctuation) that is listed below.

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  If you are having any issues with the bid bond verification, please reach out to the Procurement Contact listed in the Introduction.

• Bid Security Return (required) —

  If you are submitting a bid security other than an electronic bid bond,  would you like the bid security returned after award? 

• Bid Documents (required) —

  Please Upload your COMPLETE Bid Documents here including ALL BID FORMS in the Bidder's Checklist. 

• RFP/Q Requirements (required) —

  Did you read through and confirm that you met all of the RFP/Q requirements?

• Proposal Documents (required) —

  Please upload your COMPLETE proposal here.

• What type of solicitation will this be? (required)