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How does an Arizona community water system prepare its ADWR annual water-use report?

Updated October 4, 2026
Quick Answer

Check whether the community system must submit ADWR’s annual water-use report, including the statutory exemption for systems already required to report under A.R.S. 45-632. For a covered system, reconcile sources, customer deliveries, transfers, reuse and storage using the correct year’s form. Keep estimates, identifiers and submission confirmation together.

Which annual report does this system need?

Identify the community water system, its ADWR CWS number and the reporting calendar year. Under A.R.S. 45-343, a community system must keep applicable water-use records and submit the annual report unless it is already required to report under A.R.S. 45-632. Have ADWR confirm the actual exemption; owning a well or filing an unrelated report does not establish it.

The groundwater-right annual report has a different statutory scope and generally a March 31 deadline. ADWR’s CWS instructions identify June 1 for this community-system report. The captured page currently publishes the 2025 report due June 1, 2026; that is a past cycle, not an invitation to reuse those dates for another year.

Which source and delivery quantities belong together?

Use the correct year’s provider-summary instructions to assemble applicable groundwater withdrawals, surface-water diversions and potable water received from other systems. Match wells and other sources to their identifiers. Record water delivered to other systems separately from water delivered to customers, with relevant customer categories and connections.

The published 2025 form instructs the preparer to distinguish metered quantities from estimates and state the estimation method. It also shows how wells sharing a meter are grouped without entering the same combined quantity twice. Follow the actual form rather than guessing a separate withdrawal for each well.

Finding a well’s registration file can resolve a missing well identifier. It does not provide the year’s withdrawal total. Keep the underlying meter, purchase and delivery records with the report, and explain inconsistencies instead of silently altering totals.

How are reuse and storage kept distinct?

The published instructions give effluent reuse its own section and say not to include that effluent in the potable-water delivery sections. They also ask about potable storage facilities; a well is not a storage facility. Confirm the applicable categories and units on the year’s form before combining records from different sources.

Where information is estimated, retain a consistent basis and label it accurately. The statute permits specified quantities to be measured or estimated, but that is not permission to invent values or omit required categories. Resolve an unknown purchased-water source or missing system association with the program.

What completes the filing process?

Review each applicable part, signature and required identification, retain the final submission and confirm that ADWR received it. The published instructions say the report cannot be accepted without a signature. ADWR also notes that an online well-association error should be resolved with the CWS program rather than bypassed with a different well number.

An Arizona Corporation Commission annual report does not replace this ADWR submission, according to ADWR’s FAQ. A consumer confidence report describes drinking-water quality for customers and follows another process. Keep the accounting report, water-quality report and five-year planning obligations in separate tracking records so completing one does not obscure a missing filing.

Use the system-water-plan guide for the separate five-year supply, drought and conservation submission. Retaining the annual accounting figures does not itself complete that planning review.

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