How to Read a Consumer Confidence Report

By SubcontractorHub Editorial Team·Published October 2026

Dealers see a consumer confidence report when a household on city water brings last year's mailer to a kitchen-table visit. The EPA consumer page is the list this article follows. It is not a private-well statute. A house on a well still needs its own panel, which is the well water testing guide.

What Is a Consumer Confidence Report?

EPA requires community water systems to deliver a consumer confidence report to their customers. The same sentence calls it an annual drinking water quality report. The purpose line on the consumer page is short: these reports provide information about local drinking water quality. That is the document. It is not a bid, a filter brochure, or a lab jug from a kitchen tap.

The page names community water systems. It does not say a private well must mail the same report. A dealer who files a well sheet under this name has mixed two records. The public-system rules that sit behind many of the numbers in the report are primary and secondary drinking water standards. How those two columns differ is MCL and MCLG.

When Does the Consumer Confidence Report Arrive?

The consumer page answers the timing question in one line. Reports must be sent by the water supplier each year by July 1. If the household did not receive the report, the same page says to call the local water supplier, or to look it up with EPA's CCR search tool. This article does not add a grace period, a state override, or a day count after July 1.

Write the year on the copy the customer handed you. Last July's report is not this July's report. A dealer who quotes a row from an undated photocopy cannot tell which delivery it was. The phone number on the report is how you ask the system for the current copy. Do not guess that the numbers stayed the same.

What the Federal Page Says Is Inside

State reports may include state-specific information. The consumer page also says they must include the basic information outlined in the federal requirements. A state logo does not delete the source line, the contaminant line, or the hotline. Read the federal list first, then whatever the state added.

How Do You Read the Rows?

1. Confirm the supplier name and the year. A report from a neighboring system is not this address.
2. Write the source: lake, river, aquifer, or the other source the report names.
3. Read the brief summary of contamination risk for that source before you talk about a single row.
4. Copy the regulated contaminant the report says was found, with the unit printed beside it.
5. If a row is a violation of an EPA health standard, copy the health-effect sentence and the actions the system took to restore safe water.
6. Write the water system phone and keep EPA's Safe Drinking Water Hotline, 1-800-426-4791, as the federal number on the page.

The Source and the Risk Summary

The first content line is the lake, river, aquifer, or other source of the drinking water. That sentence tells you where the system says the water comes from. It is not a geology study and it is not a well log. If the report says aquifer, do not rewrite it as “a private well.” A community system can use groundwater and still be a community system.

Next is a brief summary of the risk of contamination of the local drinking water source. Keep that summary in the customer's words or in a short quote. Do not turn it into a treatment recommendation. The summary is the system's description of source risk. A dealer's proposal is a different document, and it should say so.

Regulated Contaminants the Report Says Were Found

The consumer page says the report includes the regulated contaminant found in local drinking water. Read the name the table prints. Two organic rows that have their own public MCLs, and that sometimes show up in this conversation, are benzene in well water at 0.005 mg/L and vinyl chloride in drinking water at 0.002 mg/L. Those pages explain the public lines. They do not say every consumer confidence report contains those rows.

Copy the unit. The national primary table uses milligrams per liter unless a footnote says otherwise, and that scale is explained in milligrams and micrograms. A report that prints micrograms is not a new limit until you convert it. Write both labels only when you have done that conversion from the digits on the page.

A detected row is not automatically a violation. The health-effect sentence on the consumer page is for a contaminant detected in violation of an EPA health standard. If the report shows a detection under the standard, do not paste the violation sentence onto it. Say what the report said: found, and whether it called the result a violation.

Violations, Restoration, and the Education Lines

When a contaminant was detected in violation of an EPA health standard, the report is supposed to include the potential health effects. It is also supposed to include an accounting of the system's actions to restore safe drinking water. Those two lines belong together. A health-effect sentence without the restoration line is an incomplete quote. This page does not add a medical opinion on top of the sentence the report printed.

The consumer page also lists an educational statement for vulnerable populations about avoiding Cryptosporidium. That statement is part of the report's contents. It is not a diagnosis, and it is not a claim that every system detected the organism. Copy it if the report includes it. Do not invent a case count.

Educational information on nitrate, arsenic, or lead appears where those contaminants may be a concern. The page says “in areas where these contaminants may be a concern,” not “on every report in the country.” If the household's copy has a lead education block, keep it. If it does not, do not add one from memory. Nitrate and arsenic on a private well are separate conversations from this mailer.

The Phone Numbers on the Last Page

The consumer page says the report includes phone numbers of additional sources of information, including the water system, and EPA's Safe Drinking Water Hotline number 1-800-426-4791. Write both. The system phone is how the household asks about its own report. The hotline is the federal number printed on the consumer page. Do not replace either one with the dealer's office line.

If the customer says they never got the mailer, the consumer page's instruction is to call the supplier or use the search tool. That is the retrieval step. It is not a reason to estimate last year's rows. A water treatment dealer can wait for the current report and still talk about a test the dealer actually pulled.

What the Dealer Writes on the Ticket

Keep four fields. The system name and the year. The source the report named. Each regulated contaminant the report says was found, with the unit and whether the report called it a violation. The water system phone. If you quote a health effect, quote the restoration line in the same note.

Do not write a removal percentage. Do not write an installed price from this report. Do not tell the household the report “requires” a softener, a carbon tank, or a UV lamp. The consumer page does not list those products. A proposal can still recommend equipment, and it should cite the test or the quote that supports the recommendation, not this mailer's table of contents.

Where a Private Well Stops

A private well does not become a community water system because the owner printed a city report from a relative's house. The rules for a well are a different page: private well water regulations. You can still set a well result beside a public MCL as a benchmark. Say that you did that. Do not call the benchmark a consumer confidence report.

This page does not list every contaminant a report might print. It does not say how a state formats the table. It does not say a missing July mailer means the water failed a standard. It says how to read the contents the federal consumer page names, and where to stop.

Frequently Asked Questions