Water Quality in Big Cabin, OK: 11 Violations — Grade D
Grade D · Score 41/100 · 2 water systems · Updated 2026-05-03
Big Cabin's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The compliance record maintained by the EPA for Big Cabin, OK documents 11 water violations — each tied to a specific public water system and assigned a violation category in the federal Safe Drinking Water dataset.
Water Quality by ZIP Code in Big Cabin
Water quality varies across Big Cabin's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 74332 | D | 41 | 11 | 5 | View report → |
Violation Trend
EPA violations recorded for water systems serving Big Cabin.
Water Quality Overview
Big Cabin, Oklahoma receives a water quality grade of D with an overall score of 41 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Big Cabin have accumulated 11 EPA violations, including 5 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 4,043 people.
What Grade D Means
A grade of D indicates significant compliance issues. Big Cabin's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
The average 90th percentile lead level across Big Cabin water systems is 0.0195 mg/L — this exceeds the EPA action level of 0.015 mg/L. 1 ZIP code exceed the EPA lead action level.
With 59% of homes built before 1986, Big Cabin 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
Big Cabin is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Big Cabin
Big Cabin is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 4,043 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 10 enforcement actions against water systems serving Big Cabin. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Big Cabin
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 Big Cabin Water Systems
The following contaminants have been detected or caused violations across Big Cabin's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 7 | 1 | Yes |
| Stage 1 DBP Rule | Treatment Technique | N/A | 2 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving Big Cabin:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2021 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
Violations have increased from 1 in 2021 to 2 in 2025. This trend warrants monitoring.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Big Cabin. Recent actions:
| Date | Action Type |
|---|---|
| 2025-08-29 | State Informal Action |
| 2025-08-07 | State Informal Enforcement |
| 2025-08-07 | State Filed Suit |
| 2025-04-23 | State Informal Action |
| 2025-04-14 | State Informal Enforcement |
| 2025-04-14 | State Filed Suit |
| 2025-04-01 | State Informal Action |
| 2025-03-07 | State Informal Enforcement |
| 2025-03-07 | State Filed Suit |
| 2025-03-06 | State Informal Action |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-08-29.
Big Cabin vs. Nearby Oklahoma Cities
How Big Cabin's water quality compares to similar cities in Oklahoma:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Big Cabin | D | 11 | 2 | 4,043 |
| Choctaw | C | 14 | 2 | 4,031 |
| Adair | B | 5 | 2 | 4,064 |
| Jay | C | 19 | 4 | 4,020 |
Common Questions About Big Cabin Water
These are the most common questions residents search for about water quality in Big Cabin, Oklahoma:
Is Big Cabin water hard or soft? Water hardness varies by source. Big Cabin's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Big Cabin tap water? Big Cabin's water receives a grade of D (41/100). There are 5 health-based violations — consider filtration.
What is the best water filter for Big Cabin? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Big Cabin vs. Oklahoma Average
Understanding how Big Cabin compares to the broader Oklahoma 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 Big Cabin.
ZIP Codes in Big Cabin
Big Cabin spans 1 ZIP code. The ZIP with the lowest water quality score is 74332. 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.