California Code of Regulations
Title 23 - Waters
Division 2 - Department of Water Resources
Chapter 7 - Water Loss Audits and Water Loss Control Reporting
Section 638.5 - Audit Reporting Requirements

Universal Citation: 23 CA Code of Regs 638.5

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) Not later than October 1, 2017, and by October 1 of every year thereafter, urban retail water suppliers shall submit a Level 1 validated Report to the Department. The Report shall include data spanning 12 consecutive months, as follows:

(1) For utilities that prefer to provide Reports on a calendar year basis the reporting period shall be for calendar year 2016 and annually thereafter.

(2) For utilities that prefer to provide Reports on a fiscal year basis that is not on the calendar year, the first reporting period shall be for their 2016-2017 fiscal year and annually thereafter.

(b) Reports under subsection (a) shall be submitted in two separate files. One file shall be in a complete and fully operational water loss audit spreadsheet format generated from the AWWA Free Water Audit Software and contain the water audit information specified in subsection (1) below. The second file shall be in PDF format and contain the information specified in subsections (2)-(4) below:

(1) System-specific data entered into each field in the water loss audit spreadsheet worksheets of the AWWA Free Water Audit Software, with a DVS.

(2) In 2017, information identifying steps taken by the urban retail water supplier in the previous year to increase the validity of data entered into the final audit, reduce the volume of apparent losses, and reduce the volume of real losses, as informed by the annual validated water audit.

(3) Beginning in 2018, information identifying steps taken by the urban retail water supplier in the preceding 3 years to increase the validity of data entered into the final audit, reduce the volume of apparent losses, and reduce the volume of real losses, as informed by the annual validated water audit.

(4) A statement confirming the Level 1 validation of the submitted water loss audit, including the validation findings, and documenting the following:
(A) Identification of the water audit validator.

(B) Qualification of the water audit validator.

(C) Date of the Level 1 validation review.

(5) The following Water Loss Audit Certification Statement, signed by the chief financial officer, the chief engineer or the general manager of an urban retail water supplier:

"This water loss audit report meets the requirements of California Code of Regulations Title 23, Division 2, Chapter 7 and California Water Code Section 10608.34 and has been prepared in accordance with the methods prescribed therein."

(c) In the case of urban retail water suppliers with two or more separate public potable water systems, the urban retail water supplier shall submit a separate AWWA Free Water Audit Software spreadsheet worksheet meeting the requirements in subsection (b)(1) for each potable water system.

(d) Reports required under subsection (a) shall be submitted using the Department's Water Use Efficiency Data online submittal tool at https://wuedata.water.ca.gov/secure/login_auth.asp.

1. New section filed 1-24-2018; operative 1-24-2018 pursuant to Government Code section 11343.4(b)(3) (Register 2018, No. 4).
2. Change without regulatory effect renumbering section 700.5 to new section 638.5 filed 2-22-2018 pursuant to section 100, title 1, California Code of Regulations (Register 2018, No. 8).

Note: Authority cited: Section 10608.34, Water Code. Reference: Section 10608.34, Water Code.

Disclaimer: These regulations may not be the most recent version. California may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.