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How can I find an Arizona public water system’s ID, monitoring records and violations?

Updated October 4, 2026
Quick Answer

Use ADEQ’s AZSDWIS public search to identify the regulated system and review its available facilities, sample schedules, results and violation records. Match the name, ID, county and system details before interpreting a row. Distinguish missing monitoring from a contaminant exceedance, and confirm current requirements or an active concern with the responsible authority.

How do you identify the correct public system?

Start with the name on the water bill, supplier communication or consumer confidence report. ADEQ’s current AZSDWIS public search provides fields for the water-system ID, name, county, system type and water-source type. Compare the returned identity and service details before treating a similarly named supplier as your system.

A public-water-system ID is different from an ADWR 55- well registration number. The well-record lookup serves another purpose. One regulated system may have several facilities or sources, so a record for one well is not the complete public-system record.

ADEQ’s navigation guide is dated July 10, 2019. Use it to understand the available record categories and labels, together with the actual current interface. Its illustrative sampling schedules are not current instructions for an unidentified system.

Which records answer the question you have?

The guide distinguishes facilities, sample schedules, analytical results, bacteriological records, inspections and violations. Match the sample location, collection date, analyte and units when investigating a result. A source sample and a distribution-system sample represent different locations.

For a reported contaminant, the guide describes individual-analyte navigation from the analyte code to the specimen and its results. Preserve the relevant system ID, sample identifier and date when asking the supplier or agency about a row. A bare number copied without its analyte or units can misrepresent what was measured.

A customer water-quality report is a separate annual summary. The database may provide more detailed records, but neither a familiar supplier name nor an old satisfactory result establishes present conditions at a particular faucet.

What does a violation row actually mean?

ADEQ’s guide distinguishes the violation name and type, compliance-period dates, sample point and whether compliance has been achieved. A monitoring or reporting violation identifies missing or late required information; it is different from a row describing an exceeded contaminant limit.

The federal fiscal-year label may differ from the calendar period when the issue occurred. Read the actual compliance-period dates. The guide explains that a compliance-achieved marker records closure of that listed violation; it does not erase its history or certify that every other obligation is satisfied.

Responding to missed monitoring is an operator task with separate notification and corrective responsibilities. Reading a public record does not complete those duties.

When should the authority resolve uncertainty?

Contact the supplier and responsible drinking-water authority about an unexplained result, missing record, schedule conflict or current concern. ADEQ’s guide itself says its navigation guidance does not substitute for complete rules. It also identifies some monitoring schedules that require direct agency confirmation rather than relying on the database display.

Follow an actual current public-health notice and its instructions. Do not interpret an empty search, closed violation, historic guide example or absence of a visible row as permission to ignore a warning. Keep the relevant record details so the responsible operator or agency can answer the specific question.

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