Water Quality in Canoga Park, CA: No Violations — Grade C
Grade C · Score 56/100 · 1 water system · Updated 2026-05-03
Canoga Park's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Canoga Park, CA has zero reported violations — 1 water system, all compliant.
Water Quality by ZIP Code in Canoga Park
Water quality varies across Canoga Park's 4 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 91305 | D | 53 | 0 | 0 | View report → |
| 91309 | D | 53 | 0 | 0 | View report → |
| 91304 | C | 55 | 0 | 0 | View report → |
| 91303 | C | 63 | 0 | 0 | View report → |
Water Quality Overview
Canoga Park, California receives a water quality grade of C with an overall score of 56 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 Canoga Park. 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 C Means
A grade of C indicates moderate compliance issues. Canoga Park's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
Lead testing data for Canoga Park is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 66% of homes built before 1986, Canoga Park has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Canoga Park is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Canoga Park
Canoga Park is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 72,602 people across 4 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
How to Check Your Water in Canoga Park
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
Canoga Park vs. Nearby California Cities
How Canoga Park's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Canoga Park | C | 0 | 1 | 72,602 |
| Calabasas | B | 0 | 1 | 72,602 |
| Topanga | D | 0 | 1 | 72,602 |
| West Hills | D | 0 | 1 | 72,602 |
Water Quality by ZIP Code in Canoga Park
Water quality varies across Canoga Park's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 91305 | 53 | D | 0 | 0 |
| 91309 | 53 | D | 0 | 0 |
| 91304 | 55 | C | 0 | 0 |
| 91303 | 63 | C | 0 | 0 |
Common Questions About Canoga Park Water
These are the most common questions residents search for about water quality in Canoga Park, California:
Is Canoga Park water hard or soft? Water hardness varies by source. Canoga Park's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Canoga Park tap water? Canoga Park's water receives a grade of C (56/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Canoga Park? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Canoga Park vs. California Average
Understanding how Canoga Park 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 Canoga Park.
ZIP Codes in Canoga Park
Canoga Park spans 4 ZIP codes. 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.