Tap Water Quality Report by ZIP Code
Your water utility must send you a yearly Consumer Confidence Report under US EPA rules. To find yours, enter your ZIP code below. The tool opens the EWG Tap Water Database for that ZIP and the EPA page that explains how to get your utility's report. It shows no invented numbers.
Enter 5 digits, then open the EWG database and search that ZIP.
Check one number from your report
How it works
The ZIP box builds a search link to the EWG Tap Water Database. EWG compiles utility test data from state records. Your utility's own Consumer Confidence Report (CCR) is the primary source, and EPA requires community water systems to deliver one every year by July 1. The EPA link explains how to find yours.
The comparison box checks one number you copy from your report against the federal limit. The limits are EPA values: lead 15 ppb (action level), copper 1.3 mg/L (action level), arsenic 10 ppb, nitrate 10 mg/L as nitrogen, fluoride 4 mg/L, chlorine 4 mg/L (maximum residual disinfectant level), PFOA 4.0 ppt and PFOS 4.0 ppt (2024 PFAS rule). EPA updates rules and compliance dates, so confirm on the EPA page.
Sources
- EPA, Consumer Confidence Reports (CCR)
- EPA, National Primary Drinking Water Regulations
- EWG Tap Water Database
Reference information only. Not medical advice. Last reviewed 2026-10-30.
Frequently asked questions
How do I find my local tap water quality report?
Enter your ZIP code in the tool to open the EWG Tap Water Database for it. For the primary source, ask your water utility for its Consumer Confidence Report. Utilities must deliver one every year.
What is a Consumer Confidence Report?
It is a yearly water quality report that community water systems must provide to customers under the US Safe Drinking Water Act. It lists the contaminants found and compares them with EPA limits.
What is the EPA limit for lead in tap water?
EPA's current lead action level is 15 parts per billion. EPA's health goal for lead is zero. Check the EPA page for the latest rule.
Does this tool show my water test results?
No. It does not store or invent numbers. It links to EWG and EPA sources and compares one value you enter with the federal limit.
What if I use well water?
Private wells are not covered by EPA utility reports. Contact your state or county health department about testing a private well.
The Hydrogen Water RO Machine includes a filter that the product page rates for up to 1,000 gallons (4,000 liters).
See the RO MachineMore free tools
- Daily Water Intake CalculatorAdequate daily water by age and life stage, in liters, ounces and bottles.
- Hydrogen Water PPB to PPM ConverterConvert ppb, ppm, mg/L and millimolar for dissolved hydrogen.
- Water Filter Replacement CalculatorTurn a filter's gallon rating and your daily use into a replacement date and calendar reminder.
- Reusable Bottle vs Plastic Bottle Savings CalculatorBottles avoided, money saved and break-even time for a reusable bottle.
- Printable Hydration TrackerA weekly water log with one circle per bottle. Print it or save as PDF.
