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Technical Assistance Program (TAP)

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What Is It?

The Technical Assistance Program (TAP) is a financial incentive program offering commercial, industrial, institutional, and multi-family residential customers in Los Angeles up to $2,000,000 for the installation of pre-approved equipment and products, which demonstrate water savings. Project must reduce potable water use by a minimum of 50,000 gallons over two years.

This joint effort between the LADWP and you, our customer, will help modernize your facility with the latest water-efficient equipment, save you money, and conserve our most precious natural resource.


Program Documents


Examples of Pre-Approved Projects

Cooling Towers

Image of a rooftop cooling tower

Very often, the highest water using equipment in a commercial or industrial facility is the cooling tower. Cooling tower water efficiency upgrades are the most common custom water conservation project that LADWP customers perform. Customers increase the water efficiency of their cooling towers by upgrading their water treatment. Customers may upgrade their treatment by going to a monitored standard treatment program, a pH control program, or a water-softening treatment program. In most cases, the LADWP provides free meters to measure the water savings your cooling tower project will garner.




Image of pipe apparatus

There are a variety of microfiltration systems available in the market. Using these types of systems may allow you to reuse some of your wastewater from your facility.  Note: you will be responsible to secure approval for your wastewater project from the proper authorities (California Department of Health Services, for instance).






Image of recirculation apparatus

Some of the wastewater in your facility may not need to be filtered before reuse. An example of this would be the waste stream from a Reverse Osmosis (R.O.) system. If the R.O. water is pre-softened, you may be able to reuse the R.O. waste water as make-up for your cooling towers. Check with your water treatment company before starting this type of project.



Image of industrial equipment

These types of projects are upgrades for existing industrial equipment. An industrial launderer may install a tunnel washer to replace a number of less water-efficient clothes washers. A dye house may replace an existing dye machine with a more water-efficient one.




This program shall at all times be subject to change or termination without notice.


How to apply

Customers may submit an application by mail.

Applying for this program is fairly simple and the LADWP staff is available to assist you with any questions. Just complete the TAP application on this page or call the Water Conservation Hotline at 1-800-544-4498 and press ‘5’ to get assistance or email any questions to [email protected].







Download the application, fill it out, print it, and mail it along with any supporting documentation to:

Los Angeles Department of Water and Power
Technical Assistance Program
PO Box 51111, Room 763
Los Angeles, CA 90051-5799 


By applying for an LADWP rebate and/or program, personal information provided may be subject to public disclosure by requesting parties, pursuant to the California Public Records Act.

Contact Us

For questions about the Custom Water Program, please call:

  • 1-800-544-4498

    Press "3"