Water Quality in Newport Beach, CA: 6 Violations — Grade B
Grade B · Score 80/100 · 4 water systems · Updated 2026-05-03
Newport Beach's water is mostly safe. Minor violations exist but are primarily monitoring-related.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The public EPA compliance record for Newport Beach, CA holds 6 documented water violations — sourced from the federal Safe Drinking Water Information System, which tracks every reportable event for registered public water systems in the state.
Water Quality Map: Newport Beach, CA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Water Quality by ZIP Code in Newport Beach
Water quality varies across Newport Beach's 6 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 92660 | B | 75 | 1 | 0 | View report → |
| 92663 | B | 75 | 1 | 0 | View report → |
| 92661 | B | 80 | 1 | 0 | View report → |
| 92662 | B | 80 | 1 | 0 | View report → |
| 92658 | A | 86 | 1 | 0 | View report → |
| 92659 | A | 86 | 1 | 0 | View report → |
Water Quality Overview
Newport Beach, California receives a water quality grade of B with an overall score of 80 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 4 water systems serving Newport Beach have accumulated 6 EPA violations (all monitoring/reporting type). These violations are tracked across 6 ZIP codes serving approximately 69,136 people.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, Newport Beach's water systems meet the vast majority of federal requirements. Minor violations may exist but typically relate to monitoring or reporting rather than health-based standards.
Lead Levels
The average 90th percentile lead level across Newport Beach water systems is 0.0090 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 75% of homes built before 1986, Newport Beach 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.
Water Systems Serving Newport Beach
Newport Beach is served by 4 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 69,136 people across 6 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 48 enforcement actions against water systems serving Newport Beach. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Newport Beach
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 6 enforcement actions against water systems serving Newport Beach. Recent actions:
| Date | Action Type |
|---|---|
| 2025-09-15 | State Order Extension |
| 2025-08-27 | State Filed Judgment |
| 2023-04-06 | State Order Extension |
| 2023-03-09 | State Filed Suit |
| 2021-03-19 | State Filed Suit |
| 2021-03-19 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-09-15.
Newport Beach vs. Nearby California Cities
How Newport Beach's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Newport Beach | B | 6 | 4 | 69,136 |
| Corona Del Mar | C | 0 | 1 | 68,572 |
| Lodi | A | 6 | 4 | 69,927 |
| Victor | C | 0 | 1 | 68,272 |
Water Quality by ZIP Code in Newport Beach
Water quality varies across Newport Beach's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 92660 | 75 | B | 1 | 0 |
| 92663 | 75 | B | 1 | 0 |
| 92661 | 80 | B | 1 | 0 |
| 92662 | 80 | B | 1 | 0 |
| 92658 | 86 | A | 1 | 0 |
| 92659 | 86 | A | 1 | 0 |
Common Questions About Newport Beach Water
These are the most common questions residents search for about water quality in Newport Beach, California:
Is Newport Beach water hard or soft? Water hardness varies by source. Newport Beach's 4 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Newport Beach tap water? Newport Beach's water receives a grade of B (80/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Newport Beach? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Newport Beach vs. California Average
Understanding how Newport Beach 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 Newport Beach.
ZIP Codes in Newport Beach
Newport Beach spans 6 ZIP codes. The ZIP with the lowest water quality score is 92658. 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 B 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.