Water Quality in Ladera Ranch, CA: No Violations — Grade C
Grade C · Score 66/100 · 1 water system · Updated 2026-05-03
Ladera Ranch'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
EPA compliance data for Ladera Ranch, CA covers 1 water system and returns the same result across every reporting period on file: zero violations documented, zero enforcement initiated, zero health-based findings registered anywhere in the federal dataset.
Water Quality by ZIP Code in Ladera Ranch
Water quality varies across Ladera Ranch's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 92694 | C | 66 | 0 | 0 | View report → |
Water Quality Overview
Ladera Ranch, California receives a water quality grade of C with an overall score of 66 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 Ladera Ranch. 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. Ladera Ranch'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 Ladera Ranch is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Water Systems Serving Ladera Ranch
Ladera Ranch is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 39,684 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
How to Check Your Water in Ladera Ranch
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
Ladera Ranch vs. Nearby California Cities
How Ladera Ranch's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Ladera Ranch | C | 0 | 1 | 39,684 |
| Laguna Niguel | C | 0 | 1 | 39,684 |
| Lebec | C | 12 | 3 | 39,636 |
| San Juan Capistrano | A | 2 | 5 | 40,113 |
Common Questions About Ladera Ranch Water
These are the most common questions residents search for about water quality in Ladera Ranch, California:
Is Ladera Ranch water hard or soft? Water hardness varies by source. Ladera Ranch's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Ladera Ranch tap water? Ladera Ranch's water receives a grade of C (66/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Ladera Ranch? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Ladera Ranch vs. California Average
Understanding how Ladera Ranch 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 Ladera Ranch.
ZIP Codes in Ladera Ranch
Ladera Ranch 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.