B74/100
Oak View Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 17,806 residents · California
What's In Oak View's Tap Water?
47
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.42 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Unresolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2024 – December 31, 2024Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2022 – February 28, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
OJAI WATER SYSTEM
Population Served
6,801
Water Source
Purchased Surface Water
System ID
CA5610014
CASITAS MUNICIPAL WATER DIST
Population Served
11,005
Water Source
Surface Water
System ID
CA5610024
Frequently Asked Questions About Oak View Water
Is Oak View tap water safe to drink?
Oak View, California tap water receives a grade of B (74/100), which is considered good. Out of 47 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Oak View's water?
Of the 47 contaminants tested in Oak View's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Oak View have any water quality violations?
Yes, Oak View has 12 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, MON. 8 of these are health-based violations, which are the most serious category.
Do I need a water filter in Oak View?
Based on EPA data, using a water filter in Oak View is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Oak View's tap water come from?
Oak View's drinking water is sourced from purchased surface water and supplied by OJAI WATER SYSTEM and 1 other water system(s). The system serves approximately 17,806 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Oak View's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Oak View's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Oak View's water compare to other cities in California?
Oak View's water quality score of 74/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Oak View's water quality?
If you have concerns about Oak View's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (OJAI WATER SYSTEM) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.