Water Quality in American Canyon, CA: No Violations — Grade A
Grade A · Score 87/100 · 1 water system · Updated 2026-05-03
American Canyon's water meets all EPA standards with no health-based violations.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
A clean federal EPA record is what the data shows for American Canyon, CA — 1 system tracked across the full available compliance history, with no MCL exceedances, no unresolved monitoring gaps, and no enforcement proceedings documented at any stage.
Water Quality by ZIP Code in American Canyon
Water quality varies across American Canyon's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 94503 | A | 87 | 0 | 0 | View report → |
Water Quality Overview
American Canyon, California receives a water quality grade of A with an overall score of 87 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 1 water system serving American Canyon. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade A Means
A grade of A indicates excellent compliance with EPA drinking water standards. American Canyon's water systems have maintained strong performance in both contaminant monitoring and regulatory compliance.
Lead Levels
Lead testing data for American Canyon is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Water Systems Serving American Canyon
American Canyon is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 21,437 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 2 enforcement actions against water systems serving American Canyon. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in American Canyon
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
EPA Enforcement History
The EPA and state regulators have taken 2 enforcement actions against water systems serving American Canyon. Recent actions:
| Date | Action Type |
|---|---|
| 2021-01-21 | State Order Extension |
| 2021-01-11 | State Filed Suit |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2021-01-21.
American Canyon vs. Nearby California Cities
How American Canyon's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| American Canyon | A | 0 | 1 | 21,437 |
| Port Hueneme Cbc Base | D | 0 | 1 | 21,407 |
| Rancho Santa Fe | A | 0 | 1 | 21,578 |
| Anderson | B | 5 | 5 | 21,245 |
Common Questions About American Canyon Water
These are the most common questions residents search for about water quality in American Canyon, California:
Is American Canyon water hard or soft? Water hardness varies by source. American Canyon's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink American Canyon tap water? American Canyon's water receives a grade of A (87/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for American Canyon? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
American Canyon vs. California Average
Understanding how American Canyon compares to the broader California average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within American Canyon.
ZIP Codes in American Canyon
American Canyon spans 1 ZIP code. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.
Frequently Asked Questions
Your Water is Safe — Here's How to Keep It That Way
Grade A is excellent news. Here's what proactive homeowners do to maintain water quality:
Annual Water Testing
EPA recommends annual testing even with clean water. Home test kits: $20-$50. Catches changes before they become problems.
Maintenance Filtration
A basic carbon filter removes chlorine taste and catches emerging contaminants like PFAS that aren't yet fully regulated.
Plumbing Check
Even safe city water picks up lead from home pipes. If your home was built before 1986, a one-time pipe inspection is recommended.