Water loss is water that is lost in a municipal distribution system between treatment and consumption. There are two types of water loss that lead to lost revenue and resources for systems and customers, real loss (leaky pipes) and apparent loss (metering inaccuracies, data handling errors). Real water loss typically occurs before any water meters, which are often located as the water enters buildings. This means that a utility is paying for all the cost of transporting the water from source to treatment plus treatment and distribution costs, but getting no revenue in return.
Globally, water losses from drinking water supply networks account for 9 billion gallons a day of water use. Cost effective water loss management reduces cost and increases revenue, which improves a systems bottom line and better serves its customers. The Colorado Water Loss Initiative (CWLI) is a program developed by the Colorado Water Conservation Board (CWCB) that provides training and technical assistance to water providers. In November 2023, the Colorado Water Conservation Board instituted an annual water loss reporting requirement for systems supplying at least 2,000 acre feet of water per year to their customers. The CWLI was established to provide a comprehensive training program for systems as part of the Colorado Water Plan strategic objective to support water management activities for all water providers and drive water loss implementation to address future water needs. The benefit to you, a training course on how to identify water loss, collect water loss data, audit and validate data, along with technical assistance to develop solutions to decrease water loss in your system.
CWLI Training Program
The CWLI offers a training program to assist systems in learning the AWWA Free Audit Software and implementing the American Water Works Association (AWWA) M36 methodology to quantify water loss. Once systems have completed the data collection, auditing, and validation phase of training, they are then provided technical assistance opportunities to implement controls and tools to minimize water loss. Technical assistance can include activities such as meter testing and design analysis or billing data analysis and prorating. Grant assistance is available to program participants to remedy prioritized water loss interventions that were identified through the program.
Who can benefit from the training?
All drinking water systems. Do you have a small system and aren’t required to report annual losses but still interested in water loss? No problem, small systems can benefit from the water loss program and are encouraged to register. Water loss best management practices can help all systems save water, money, prepare for water supply shortages, and prepare for future climate impacts. All systems will learn to take the appropriate steps toward effective water loss control management.
How much is it? And where do I register for the program?
The program and materials are offered at no cost and are available to all eligible drinking water staff. See the below resources to learn more about the program
- Video interviewing participants about their experience
- CWCB Water Talk Podcast - CWLI staff discusses the program
- Register here for the program
Interested in helping to improve water loss control and management? Join the CWLI Committee!
The Colorado Water Loss Control & Management Committee was formally established in December 2023 by the Colorado Water Conservation Board. The committee's objective is to improve water loss control and management by planning water loss strategies, trade technical information, inform water loss policy discussions, train and educate water utilities on water loss, and support water loss goals of the Colorado Water Conservation Board. You can find more information at the Colorado Water Loss Control & Management Committee website.
➽ Angela Green Garcia, Drinking Water Training Specialist
➽ Kevin Reidy, DNR, Senior Water Efficiency Specialist
