How to Prepare Your Consumer Confidence Report (CCR): A Step-by-Step Guide

Every July, community water systems across the United States face a critical compliance deadline: delivering the annual Consumer Confidence Report (CCR) to all customers. This seemingly straightforward requirement — mail a report, check a box — actually involves complex regulatory requirements, careful data assembly, and clear risk communication. Get it wrong, and your system faces enforcement action and customer confusion. Get it right, and you build public trust while demonstrating regulatory compliance.

This guide walks through every step of CCR preparation, from gathering data in January through certification in October. Whether you're preparing your first CCR or your twentieth, this walkthrough will help you create accurate, compliant, and customer-friendly reports.

What Is a Consumer Confidence Report and Why Does It Matter?

The Consumer Confidence Report, also called a Drinking Water Quality Report or Annual Water Quality Report, is a document that community water systems must provide to customers every year. The CCR summarizes information about the system's source water, detected contaminants, compliance status, and educational information about drinking water health.

Congress mandated CCRs in the 1996 amendments to the Safe Drinking Water Act. The goal was simple but ambitious: empower consumers with information about their drinking water quality so they can make informed decisions and hold water systems accountable for protecting public health.

For water system operators, the CCR serves several purposes beyond compliance:

• Public transparency — demonstrates commitment to safe drinking water
• Customer education — helps customers understand treatment, testing, and regulations
• Trust building — proactive communication prevents misinformation and panic
• Regulatory documentation — creates official record of water quality data

Despite these benefits, many small systems view CCR preparation as a burdensome annual chore. The key to reducing that burden is understanding requirements, establishing efficient workflows, and using available tools and templates.

Who Must Prepare a CCR?

The CCR rule applies to all community water systems (CWS) — public water systems that serve at least 15 service connections used by year-round residents or regularly serve at least 25 year-round residents.

Community water systems include:

• Municipal water departments
• Private water companies
• Mobile home parks with their own water supply
• Homeowner associations operating community wells
• Small rural systems serving residential customers

Systems NOT required to prepare CCRs:

• Transient non-community systems (rest stops, campgrounds, gas stations)
• Non-transient non-community systems (schools, factories, office buildings with their own wells serving only employees/students)
• Systems that purchase all their water wholesale from another system (though wholesale purchasers must still distribute the CCR from their supplier)

If your system serves even one year-round residence, you're a community water system and must prepare an annual CCR.

Federal Deadline: July 1 Annually

The federal CCR delivery deadline is July 1 every year. By this date, you must have delivered the CCR to all customers for the preceding calendar year.

For example, the CCR delivered by July 1, 2026 reports water quality data for calendar year 2025 (January 1 - December 31, 2025).

States may set earlier deadlines. Some states require CCR submission by June 1 or require pre-approval before distribution. Always check your state's specific requirements.

In addition to the July 1 delivery deadline, systems must certify to the state that the CCR was delivered by October 1. Certification typically requires submitting a copy of the CCR along with a signed statement that it was delivered to all customers.

Required Contents: What Must Be in Your CCR

Federal regulations specify exactly what information must be included in every CCR. Missing any required element makes your CCR non-compliant.

1. System Information

Basic identifying information about your water system:

• System name and contact information (phone, address, website)
• Public Water System Identification Number (PWSID)
• Name and contact for the person responsible for water quality questions
• Board meeting dates and times (if applicable) so customers can attend and participate

2. Source Water Description

A brief description of your water source(s):

• Type of water (groundwater, surface water, or both)
• Name and location of source (aquifer name, river name, reservoir, etc.)
• Source water assessment information, including identified potential sources of contamination

Most states have completed source water assessments for all community water systems. Contact your state drinking water program for a copy of your assessment if you don't have one.

3. Definitions

Key terms must be defined to help customers understand technical language:

• Maximum Contaminant Level (MCL) — the highest level of a contaminant allowed in drinking water
• Maximum Contaminant Level Goal (MCLG) — the level at which no known or anticipated health effect would occur, with a margin of safety (not enforceable)
• Action Level (AL) — the concentration that triggers treatment or other requirements
• Treatment Technique (TT) — a required process intended to reduce contamination
• Parts per million (ppm) and parts per billion (ppb) — units of measurement
• Maximum Residual Disinfectant Level (MRDL) — highest level of disinfectant allowed
• ND (Not Detected) — contaminant not found in samples

EPA provides standard definition language that you can copy directly into your CCR. Don't try to rewrite definitions in simpler language — use the approved regulatory text to ensure accuracy.

4. Detected Contaminants Table

This is the heart of the CCR: a table listing every contaminant detected in your water during the reporting year, along with:

• Contaminant name
• Date(s) sampled
• MCL or treatment technique requirement
• MCLG
• Level detected (range if multiple samples, or highest single result)
• Typical source of contaminant in drinking water
• Violation status (yes/no)

You must report every regulated contaminant detected, even if levels are far below the MCL. However, you only report results from the reporting year, not historical data (unless addressing a violation that occurred in a prior year but was not resolved).

Common contaminants detected in small systems include:

• Disinfectants and disinfection byproducts: chlorine, total trihalomethanes (TTHMs), haloacetic acids (HAA5)
• Inorganic contaminants: nitrate, arsenic, barium, fluoride, copper, lead
• Microbiological contaminants: total coliform bacteria, E. coli
• Radionuclides: gross alpha, radium, uranium (if tested)

If no contaminants were detected during the reporting year, include a statement: "No contaminants were detected during the reporting year."

5. Violation Information

If your system violated any drinking water regulation during the reporting year, you must clearly explain:

• Which regulation was violated
• When the violation occurred
• What health concerns are associated with the violation
• What the system did or is doing to correct the violation
• When the system expects to return to compliance

Violation language must be clear, direct, and understandable to non-technical readers. EPA provides mandatory health effects language for certain violations that you must include verbatim.

6. Health Effects Language for Detected Contaminants

For certain contaminants detected above the MCL or MCLG, you must include specific health effects language explaining the potential risks. EPA provides mandatory language that must be used exactly as written.

For example, if nitrate exceeds the MCL:

"Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can cause blue baby syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you should ask for advice from your health care provider."

Don't paraphrase or abbreviate mandatory health effects language. Copy it exactly from EPA guidance documents or state-provided templates.

7. Lead-Specific Language (New LCRI Requirement)

The Lead and Copper Rule Improvements (LCRI) adds new required content for all CCRs, even if your system hasn't detected lead:

• Statement about lead health effects, especially for children and pregnant women
• Information about the system's lead service line inventory and replacement program
• Instructions for customers to request information about whether their service line contains lead
• Contact information for customers with questions about lead

8. Cryptosporidium and Other Unregulated Contaminants (if applicable)

If your system monitors for unregulated contaminants under EPA's Unregulated Contaminant Monitoring Rule (UCMR) or detects Cryptosporidium in source water, you must report those results in the CCR.

Include the contaminant name, detected level, and a brief explanation of why the system is monitoring for it. For UCMR contaminants, explain that EPA has not established health-based standards but is collecting data for potential future regulation.

9. Compliance with Other Regulations

Include a statement about whether the system complied with all other drinking water regulations during the reporting year, such as:

• Monitoring requirements
• Filter performance standards (for surface water systems)
• Stage 2 Disinfectants and Disinfection Byproducts Rule
• Total Coliform Rule or Revised Total Coliform Rule

10. Educational Information

Specific educational information must be included for certain audiences:

• General population: Information about drinking water sources and vulnerability to contamination
• Immunocompromised individuals: Special precautions for people with HIV/AIDS, organ transplants, chemotherapy patients, or others with weakened immune systems

EPA provides template language for immunocompromised populations that should be included in every CCR:

"Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline (800-426-4791)."

New LCRI Requirements for CCRs

As noted above, the Lead and Copper Rule Improvements significantly expands CCR content requirements related to lead. Starting with the 2027 reporting year (CCR due July 1, 2028), all CCRs must include:

Lead Service Line Inventory Information

• Total number of service lines in the system
• Number categorized as lead
• Number categorized as galvanized requiring replacement (GRR)
• Number categorized as non-lead
• Number with lead status unknown
• Link to the public service line inventory (must be posted online or available upon request)

Lead Service Line Replacement Program Information

• Timeline for lead service line replacement
• How customers can find out if their service line contains lead
• How customers will be notified if their service line is scheduled for replacement
• Any financial assistance available for customer-owned portion replacement

Lead Sampling Results and Health Information

• Summary of lead sampling results from schools and childcare facilities (if applicable)
• Lead health effects language emphasizing risks to children and pregnant women
• Actions the system is taking to minimize lead exposure (corrosion control, service line replacement, public education)

These requirements represent a major expansion of CCR content. Small systems should begin compiling service line inventory data now to be ready for the 2028 CCR cycle.

Spanish Language Statement Requirements

Federal regulations require CCRs to include information in Spanish for systems serving a significant Spanish-speaking population. Specifically, if 10% or more of the population served speaks Spanish (based on census data), the CCR must include either:

1. A full Spanish translation of the entire CCR, or
2. Information in Spanish about how to obtain a translated copy

Many states provide template Spanish language statements that you can include in your CCR. The statement typically says:

"Este informe contiene información muy importante sobre su agua potable. Tradúzcalo o hable con alguien que lo entienda bien." (This report contains very important information about your drinking water. Translate it or speak with someone who understands it well.)

Some states also require additional languages if significant populations speak languages other than English or Spanish. Check your state requirements.

Distribution Methods: How to Deliver Your CCR

CCRs must be delivered directly to each customer. You cannot simply post the CCR on your website or make it available upon request — you must proactively deliver it.

Acceptable delivery methods include:

1. Direct Mail

The most common delivery method is mailing a paper copy to each billing address. Direct mail ensures every customer receives the CCR and creates documentation of delivery (if you retain mailing records or receipts).

Advantages:

• Guaranteed delivery to all customers
• Physical copy customers can review at their convenience
• Clear documentation for certification

Disadvantages:

• Printing and postage costs (significant for large systems)
• Environmental concerns (paper waste)
• May not reach renters if mailed to property owners

2. Electronic Delivery (Email)

Systems may deliver CCRs electronically if customers have affirmatively consented to electronic delivery. Consent must be documented, and customers must be able to revoke consent.

Electronic delivery cannot be the default option. You must offer paper delivery and only send electronic copies to customers who explicitly opt in.

Advantages:

• Lower cost (no printing or postage)
• Faster delivery
• Environmental benefits

Disadvantages:

• Requires documented customer consent
• Not all customers have email access
• Email delivery failures may go unnoticed

3. Billing Insert

You can include the CCR (or a link to the CCR) with regular water bills if bills are mailed directly to each customer at least once per billing cycle during the reporting period.

Advantages:

• Piggybacks on existing mailing, reducing costs
• Likely to be seen since customers open bills

Disadvantages:

• CCR may be discarded with bill payment materials
• Requires careful tracking to ensure all customers receive it

4. Hand Delivery

For very small systems (mobile home parks, homeowner associations), you may hand-deliver CCRs to each household.

Advantages:

• No mailing cost
• Opportunity to discuss water quality directly with customers

Disadvantages:

• Labor intensive
• Requires documentation of delivery to each household

Wholesale Data Deadline: April 1

If your system purchases water wholesale from another system, you'll need data from your wholesaler to complete your CCR. Federal regulations require wholesale suppliers to provide water quality data to consecutive systems by April 1 each year.

This gives you three months (April 1 to July 1) to receive the wholesale data, incorporate it into your CCR, print and mail reports, and meet the July 1 delivery deadline.

If your wholesaler doesn't provide data by April 1, contact them immediately. Wholesale suppliers are federally required to provide this data, and their failure to do so should not cause you to miss your deadline.

Common Mistakes and How to Avoid Them

Based on decades of CCR reviews, here are the most common errors small systems make:

Mistake 1: Omitting Detected Contaminants

Error: Only reporting contaminants that exceed the MCL, or only reporting contaminants the operator considers "important."

Fix: Report ALL regulated contaminants detected during the reporting year, regardless of concentration. Review laboratory reports carefully and include every detection, even trace amounts.

Mistake 2: Using Wrong Reporting Year Data

Error: Including data from multiple years, or reporting the current year's data instead of the prior calendar year.

Fix: CCRs delivered by July 1, 2026 should report only data from calendar year 2025 (January 1 - December 31, 2025). Create a clear data collection process that pulls only the correct year's results.

Mistake 3: Missing Mandatory Health Effects Language

Error: Omitting required health effects statements for contaminants exceeding health-based levels, or paraphrasing EPA's mandatory language.

Fix: Use EPA-provided health effects language exactly as written. Copy and paste from official EPA templates rather than retyping or summarizing.

Mistake 4: Incorrect Units or Conversion Errors

Error: Reporting milligrams per liter (mg/L) as parts per million (ppm) when the values should be parts per billion (ppb), or making mathematical errors in unit conversions.

Fix: Double-check units on laboratory reports and ensure your CCR table matches exactly. Remember: 1 mg/L = 1 ppm, and 1 µg/L (microgram per liter) = 1 ppb. Don't convert unless necessary.

Mistake 5: Failure to Report Violations

Error: Omitting violations that occurred during the reporting year, or downplaying the severity of violations.

Fix: Transparency is legally required and builds trust. Report all violations clearly, explain what happened, and describe corrective actions. Hiding violations leads to worse enforcement consequences when discovered.

Mistake 6: Late or Missing Certification

Error: Delivering the CCR on time but forgetting to certify to the state by October 1.

Fix: Add the October 1 certification deadline to your calendar. Submit certification immediately after CCR delivery in July rather than waiting until fall. Most states provide online certification forms.

Step-by-Step CCR Preparation Workflow

Here's a recommended timeline for CCR preparation that avoids last-minute scrambles:

January - February: Data Assembly

• Pull all laboratory reports for the preceding calendar year
• Request wholesale supplier data (if applicable)
• Review for any detected contaminants or violations
• Organize data by contaminant and sample date

March: Draft Preparation

• Download CCR template from your state or EPA
• Enter system information (name, PWSID, contact details)
• Complete source water description
• Build contaminant detection table with all required data
• Add violation language if applicable
• Include all required educational statements

April: Review and Revisions

• Review draft for accuracy and completeness
• Have another operator or board member proofread
• Verify all mandatory elements are included
• Check for common errors (omitted contaminants, wrong units, missing definitions)
• Finalize design and layout

May: Production and Printing

• Obtain printing quotes if mailing paper copies
• Approve final proof
• Send to printer (allow 2-3 weeks for printing)
• Prepare mailing list or email distribution list
• Obtain postage and envelopes

June: Distribution

• Mail or email CCRs to all customers
• Post CCR on system website
• Provide copies to state drinking water program
• Document delivery (keep mailing receipts, email reports, or delivery logs)

July 1: Deadline

• Ensure all CCRs are delivered by July 1
• Retain documentation for certification

September - October 1: Certification

• Complete state certification form
• Submit copy of CCR and proof of delivery to state
• File documentation for future reference

Using Templates and Tools

You don't have to create a CCR from scratch every year. Numerous free templates and tools are available:

State-Provided Templates

Most state drinking water programs provide CCR templates customized to state-specific requirements. These templates include all required federal elements plus any additional state requirements.

Contact your state drinking water program and ask for the current year's CCR template. Many states provide both Word and PDF versions, along with detailed instructions.

EPA Drinking Water Watch Tools

EPA offers online tools and resources at epa.gov/ccr including:

• Model CCR templates
• Mandatory health effects language
• Spanish translation resources
• Guidance documents and FAQs

Software Tools

Some commercial software packages can generate CCRs automatically from your water quality database. If your system uses laboratory information management software (LIMS) or utility billing software, check whether CCR generation is included.

Software-generated CCRs still require careful review to ensure accuracy and completeness, but they can save data entry time and reduce transcription errors.

TapWorks CCR Export Tool

TapWorks offers a free CCR data export tool that organizes your compliance data in the format required for CCR tables. Simply export your data and paste it into your state's CCR template — no manual data entry required.

Our tool pulls data directly from EPA's SDWIS database, ensuring you don't miss any required contaminants or violations. Learn more at tapworks.report

Beyond Compliance: Making Your CCR Customer-Friendly

While meeting federal requirements is essential, the best CCRs go beyond regulatory compliance to truly inform and engage customers. Consider these enhancements:

Use Plain Language

Replace jargon and technical terms with everyday language. For example:

• Instead of: "The system achieved compliance with all applicable monitoring requirements."
• Try: "We tested your water for all required contaminants and met all deadlines."

Add Visual Elements

Tables of numbers can be intimidating. Consider adding:

• Photos of your water source, treatment plant, or operators
• Maps showing the system's service area
• Charts or graphs comparing detected levels to safety standards
• Icons or graphics to highlight key messages

Highlight Good News

If your water quality is excellent, say so prominently. Many customers assume water utilities only communicate when there are problems. Lead with: "Your water met all federal and state safety standards in 2025."

Provide Context

Help customers understand what numbers mean. If you detected 2.5 ppb of arsenic and the MCL is 10 ppb, explain: "This is one-fourth of the EPA's safety limit — well within the safe range."

Include Operator Photos and Messages

Personalize your CCR with a photo and brief message from your certified operator or system manager. Customers appreciate knowing the real people responsible for their water.

Offer Additional Resources

Point customers to resources for learning more:

• System website or social media
• EPA Safe Drinking Water Hotline: 1-800-426-4791
• State drinking water program contact information
• Information about attending board meetings or providing public comment

A customer-friendly CCR builds community trust, demonstrates professionalism, and can even reduce customer complaints and billing disputes.

Conclusion

The Consumer Confidence Report is more than a regulatory requirement — it's your annual opportunity to communicate directly with every customer about the quality and safety of their drinking water. By understanding federal and state requirements, following a structured preparation workflow, and using available templates and tools, you can create accurate, compliant CCRs efficiently.

Remember the key deadlines: April 1 for wholesale data, July 1 for CCR delivery, and October 1 for state certification. Start early, document thoroughly, and don't hesitate to ask for help from your state drinking water program or technical assistance providers.

A well-prepared CCR protects your system from enforcement actions, educates your customers, and demonstrates your commitment to transparency and public health. That's worth the annual effort.

Sources

• eCFR Title 40 Part 141 Subpart O: Consumer Confidence Reports
• EPA Consumer Confidence Report Information
• Federal Register: Consumer Confidence Report Rule Revisions (2023)
• Federal Register: Consumer Confidence Reports Final Rule (2024)
• EPA CCR Quick Reference Guide
• EPA Lead and Copper Rule Improvements