Water Quality in Terra Bella, CA: 1 Violation — Grade B
Grade B · Score 75/100 · 1 water system · Updated 2026-05-03
Terra Bella'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
Federal EPA data for Terra Bella, CA shows 1 water compliance event in the record — the table below identifies system names and violation types.
Water Quality by ZIP Code in Terra Bella
Water quality varies across Terra Bella's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 93270 | B | 75 | 1 | 0 | View report → |
Water Quality Overview
Terra Bella, California receives a water quality grade of B with an overall score of 75 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Terra Bella have accumulated 1 EPA violations (all monitoring/reporting type). These violations are tracked across 1 ZIP codes serving approximately 2,656 people.
What Grade B Means
A grade of B indicates good compliance with EPA drinking water standards. While not perfect, Terra Bella'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
Lead testing data for Terra Bella is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 60% of homes built before 1986, Terra Bella 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
Terra Bella is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Terra Bella
Terra Bella is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 2,656 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
The EPA has taken 3 enforcement actions against water systems serving Terra Bella. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Terra Bella
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 3 enforcement actions against water systems serving Terra Bella. Recent actions:
| Date | Action Type |
|---|---|
| 2025-07-08 | State Order Extension |
| 2025-06-01 | State Order Extension |
| 2025-01-10 | State Filed Suit |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-07-08.
Terra Bella vs. Nearby California Cities
How Terra Bella's water quality compares to similar cities in California:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Terra Bella | B | 1 | 1 | 2,656 |
| Skyforest | C | 0 | 1 | 2,654 |
| Mount Laguna | C | 0 | 1 | 2,645 |
| Mi Wuk Village | C | 4 | 3 | 2,630 |
Common Questions About Terra Bella Water
These are the most common questions residents search for about water quality in Terra Bella, California:
Is Terra Bella water hard or soft? Water hardness varies by source. Terra Bella's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Terra Bella tap water? Terra Bella's water receives a grade of B (75/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Terra Bella? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Terra Bella vs. California Average
Understanding how Terra Bella 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 Terra Bella.
ZIP Codes in Terra Bella
Terra Bella spans 1 ZIP code. The ZIP with the lowest water quality score is 93270. 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.