We're excited to announce that WSO is now part of E Source.

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Water Systems Optimization specializes exclusively in water loss control. Through analytics, education, and field services, WSO supports water utilities in managing water loss. We lead water loss control programs throughout the United States, work with utilities of all sizes, and publish industry-advancing research.


Service Highlight - Water Audit Validation

California requires urban retail water suppliers to formally validate AWWA water audits before submitting to the Department of Water Resources (DWR) by October 1 annually. Validation is a process of review to ensure the correct application of the AWWA water auditing methodology and the consistent assignment of data validity grades for audit inputs. WSO has completed more than 200 water audit validations and is well equiped to help your agency complete this regulatory requirement.

First identify your planned water audit reporting period and then use the scheduling tool to select the time for your Level 1 Validation Session below. You can also learn more about validation before scheduling your call by clicking the button below.

Please select a fiscal or calendar year reporting period to access the scheduling tool.

Use the scheduling tool below to find availability for a fiscal year water audit validation:

Use the scheduling tool below to find availability for a calendar year water audit validation:

Contact WSO

Fill out this contact form or email us at contact@wso.us for more information about our services!