The Water Loss Technical Assistance Program (Water Loss TAP) aids urban water suppliers in complying with California Senate Bill 555, requiring utilities to submit a completed and Level 1 validated water loss audit annually to the California Department of Water Resources (DWR).
The Water Loss TAP is brought to you by the California-Nevada Section AWWA. This project has been funded by the Environmental Protection Agency and the State Water Resources Control Board. The contents of this website do not necessarily reflect the views and policies of the EPA or the SWRCB, nor does the EPA or the SWRCB endorse trade names or recommend the use of commercial products if mentioned in this website.
Remote Work Session
Remote Validation Session
July 2016 - September 2016
Wave 1 is a day-long in-person work session (classroom) that covers the basics of water auditing and introduces water audit data validation.
Introduce Water Loss TAP
Begin technical assistance
Create utility water audit teams
October 2016 - February 2017
Wave 2 is a teleconference work session in which water auditing experts and each utility’s water audit team examine the utility’s
most recent water audit in a two-hour interview.
Review the most recent water audit
Discuss water audit data and data validity scores
Amendments as needed
March 2017 - May 2017
Wave 3 is a day-long in-person work session (classroom) that reinforces the water audit methodology before more deeply exploring water audit data validation and the connection between water auditing and water loss control.
Continue technical assistance
Connect water audits to water loss control
Prepare for Wave 4
May 2017 - September 2017
Wave 4 is a teleconference session in which water auditing experts and each utility’s water audit team perform a Level 1 validation of the FY or CY water audit that will be submitted to DWR.
NOTE: The DWR rules for SB555 compliance are not yet final and may be subject to change. The latest rule language indicates FY period must be for 2016/17.
Level 1 validate FY or CY water audit
Prepare for submitting Level 1 validated water audits to DWR
Compile your most recent water audit and supporting documents, informed by the Wave 2 work session
Schedule a teleconference validation session
Send your water audit and supporting documents to the PMT at least two weeks before your validation session
Participate in your validation session
Receive post-session document & audit from PMT
Submit your Level 1 validated water audit package to DWR through the State Portal. Login credentials will be those you used for your Urban Water Management Plans.