Water Quality in Oak View, CA: 3 Violations - Grade C
Grade C · Score 59/100 · 6 water systems · Updated 2026-07-18
Oak View's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-07-18
Looking at EPA compliance data for Oak View, CA, the record shows 3 violations - findings that span health-based exceedances, monitoring lapses, and enforcement events tied to local utilities in the SDWIS database.
Water Quality by ZIP Code in Oak View
Oak View is covered by a single ZIP code, so one water-quality profile applies citywide. See the contaminant data below.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 93022 | C | 59 | 3 | 1 | View report → |
Water Quality Overview
Oak View, California receives a water quality grade of C with an overall score of 59 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 6 water systems serving Oak View have accumulated 3 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP code serving approximately 5,929 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Oak View'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
The average 90th percentile lead level across Oak View water systems is 0.0008 mg/L - within EPA limits. No ZIP codes exceed the EPA lead action level.
With 87% of homes built before 1986, Oak View 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
Oak View is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Oak View
Oak View is served by 6 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 5,929 people across 1 ZIP code.
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 9 enforcement actions against water systems serving Oak View. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Oak View
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
Contaminants Detected in Oak View Water Systems
The following contaminants have been detected or caused violations across Oak View's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 1 | 1 | Yes |
| E. coli | Microbiological | N/A | 1 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 9 enforcement actions against water systems serving Oak View. Recent actions:
| Date | Action Type |
|---|---|
| 2025-09-29 | State Filed Suit |
| 2025-01-17 | State Filed Suit |
| 2024-11-14 | State Order Extension |
| 2024-03-05 | State Order Extension |
| 2024-02-27 | State Filed Suit |
| 2024-02-01 | State Order Extension |
| 2023-12-19 | State Filed Suit |
| 2022-07-11 | State Order Extension |
| 2022-05-05 | State Filed Suit |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-09-29.
Oak View vs. Nearby California Cities
How Oak View's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Oak View | C | 3 | 6 | 5,929 |
| Mojave | D | 36 | 4 | 5,944 |
| Topanga | D | 0 | 2 | 5,948 |
| Pixley | B | 3 | 1 | 5,900 |
Common Questions About Oak View Water
These are the most common questions residents search for about water quality in Oak View, California:
Is Oak View water hard or soft? Water hardness varies by source. Oak View's 6 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Oak View tap water? Oak View's water receives a grade of C (59/100). There are 1 health-based violation - consider filtration.
What is the best water filter for Oak View? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Oak View vs. California Average
Understanding how Oak View 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 Oak View.
ZIP Codes in Oak View
Oak View spans 1 ZIP code. The ZIP with the lowest water quality score is 93022. 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.