Contractor Prequalification

Contractor Prequalification

IRWD maintains a list of prequalified contractors for construction contracts greater than $100,000 in value. The Prequalified Contractor List identifies prequalified Prime Contractors and currently includes contractors for the following specialty areas:

  • pipeline
  • mechanical
  • reservoir
  • well rehabilitation
  • well drilling
  • electrical
  • cathodic protection

If you are interested in qualifying for the list of prequalified contractors, please download and complete the application.  Please note that prequalification is for Prime Contractors only.  A Prime Contractor is defined as one that is capable and responsible for the satisfactory completion of the entire project, including all work that is self-performed or subcontracted. A Prime Contractor must use its own forces to perform no less than fifty percent of the total value of the contract. 

Current List of Prequalified Construction Project Prime Contractors

Application Package for Construction Prime Contractors

  • IRWD will only review applications once a year. Application packages submitted on or before July 1 will be reviewed by October 1 of that year.  Application packages received after July 1 will be held and reviewed by October 1 of the following year.
  • IRWD will notify each applying firm of its prequalification status in writing.
  • Full and complete information on the application process is contained in the Application Package.

If your firm is a Prime Contractor that is interested in bidding construction contracts less than $100,000 in value,  please visit our Purchasing Department page and register as a New Supplier with IRWD's Purchasing Department.

If your firm is neither a Prime Contractor nor prequalified to be on the Prequalified Contractor List, your firm may still pursue work on IRWD construction projects as a subcontractor as IRWD does not require subcontractor prequalification.  For a summary of current construction projects that are out to bid, please visit Construction Projects Out to Bid and click on the Project Bidders List link for a list of Prime Contractors invited to bid a specific project.  You may also register online with eNotify to automatically receive notifications when new projects are advertised for bids.

sign up and receive updates

Sign up for eNotify to receive automatic notifications when updates become available online.

Latest News

2018 Poster Contest FinalistsAbout 400 students entered the Water Awareness Poster Contest. Ten students have been recognized as finalists. Their posters move forward for a chance to be featured in the 2019 Water Awareness Poster Calendar published by the Metropolitan Water District of...
Ready, Set, QuakeCalifornia is earthquake country and you always want to be ready. IRWD suggests you enroll in the CodeRED® Emergency Alert System to receive updated information in any emergency. Just log on to and click “Emergency & CodeRED” in the...
Money-Saving Tesla Batteries Arrive at IRWD’s Water Recycling PlantA caravan of 18-wheelers and large hoisting cranes completed delivery on Tuesday of 75 high-efficiency Tesla batteries to the Michelson Water Recycling Plant, where they will be installed as part of Irvine Ranch Water District’s money-saving Energy Storage Program. For those...