What's inside every report
EPA lists what a Consumer Confidence Report has to include:
- Where the water comes from. For Crest Hill: Groundwater from the City's wells, disinfected with chlorine before it reaches the distribution system.
- The regulated contaminants that were detected, and how much
- Possible health effects of anything found above an EPA standard
- Any violations, and what the water system is doing about them
- Extra information about lead, and phone numbers for questions
The table, column by column
| Column | What it means |
|---|---|
| MCLG | The health goal: the level with no known health risk. For lead it's 0. |
| MCL | The legal limit: the most the law allows. |
| Action level (AL) | Used for lead and copper. If more than 1 in 10 tested homes are over it, the system must take extra steps. |
| Level found / 90th percentile | The result used to judge compliance. For lead, 9 out of 10 tested homes were at or below this number. |
| Range | The lowest and highest individual results. The highest one is worth noticing. |
| Violation (Y/N) | Whether the result broke a rule. This is the first column CDC suggests checking. |
Crest Hill's key numbers
- Lead (90th percentile): 1.23 ppb against a 15 ppb action level and a health goal of 0.
- TTHM: 54 ppb against an 80 ppb limit.
- HAA5: 25 ppb against a 60 ppb limit.
- Chlorine: 0.9 ppm against a 4 ppm limit.
- Violations: The 2025 report lists routine monitoring violations (January 2023–December 2025) for a number of regulated contaminants, including antimony, arsenic, barium, fluoride, and mercury, where required tests were not completed for the period. These are missed tests, not results over a limit. Under the Lead and Copper Rule, the report lists a violation for not proposing corrosion-control treatment to regulators after results indicated treatment was needed, and for not certifying that annual notices were delivered to customers with lead, galvanized-requiring-replacement, or unknown service lines.
See each one in plain English, with color-coded status, on the Crest Hill water report card.
What the report can't tell you
The report covers the whole water system. It can't see your service line, your faucets, or the solder inside your walls. If you want to know what's coming out of your own tap, test it. Our guide to testing your water for lead walks through how.
Still have questions? Call your water department, or EPA's Safe Drinking Water Hotline at 1-800-426-4791.
Quick questions
When does Crest Hill publish its water report?
EPA requires every community water system to deliver its annual report, called a Consumer Confidence Report, by July 1 each year.
What should I look at first?
CDC suggests looking for a column called "violations" or "meets standard" to see whether any result broke EPA's rules, then reading any violation notes.
Sources
- City of Crest Hill 2025 Consumer Confidence Report — City of Crest Hill
- CCR Information for Consumers — U.S. EPA
- How to Read Drinking Water Quality Reports — CDC
This guide is general information, not medical or legal advice. Crest Hill Water Filtration is an independent business and is not affiliated with the City of Crest Hill. Product certifications are model-specific and can change; check the current listing before you buy.
