Is Vian, OK Tap Water Safe to Drink?
Graded D+, with 11 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
51/100
waterverge.com Vian, OK — Water Quality Report
Vian's drinking water received a grade of D+ (51 out of 100), indicating poor water quality. The city's 2 water systems serve approximately 1,471 residents using purchased surface water.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 688 violations on record, including 7 health-based violations. 11 remain unresolved.
What to know about Vian's water
Vian ranks #198 out of 358 cities in Oklahoma for water quality, placing it below average in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Vian may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 672 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Vian, OK water safe to drink?
Vian's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (51/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,471 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Vian
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Vian's water quality assessment. Grade: D+ (51/100).
Contaminants: Revised Total Coliform Rule, Chlorine, Surface Water Treatment Rule.
Contaminants: Surface Water Treatment Rule, Chlorine, Total Haloacetic Acids (HAA5).
Contaminants: Chlorine, Revised Total Coliform Rule, Surface Water Treatment Rule.
Federal disaster declaration (FEMA DR-3411). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-1754). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Vian's water supply.
Well within EPA limits.
Violation history
Vian's water system has 688 total violations on record, including 7 health-based violations. 11 remain unresolved. 672 violations were issued in the last 5 years.
Flood & environmental risk
Sequoyah County has experienced 6 federally declared disasters since 1972. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Illinois River Near Gore.
Where does Vian's water come from?
Vian's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 1,471 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Illinois River Near Gore (river).
What Vian residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Vian's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Vian's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Vian
Industrial polluters nearby
Reported releases to surface water by facilities near Vian, ranked by pounds discharged annually.
Total reported releases to surface water: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
U.S. LIME CO ST CLAIR MARBLE CITY, OK74945 | Lead compounds | 0 | 10.0 mi |
AVIAGEN FEED PROCESSING UNIT SALLISAW, OK74955 | — | — | 9.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D2 — severe droughtCherokee County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Sequoyah County has experienced 6 federally declared disasters since 1972. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Vian compares by contaminant
Explore where Vian ranks among all Oklahoma cities for specific contaminants.
Water source & infrastructure
Where Vian's water comes from
Vian's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 1,471 people through 2 water systems.
Water bodies near Vian
Vian is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Vian
| System Name | PWSID | Population | Source |
|---|---|---|---|
| VIAN | OK3006812 | 1,445 | SWP |
| CANOE MOUNTAIN WATER SYSTEM | OK1021778 | 26 | SW |
How Vian compares
Full Oklahoma rankings →Vian's score of 51/100 is above the average of 45/100 among major Oklahoma cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Oklahoma rankings →About Vian, OK
Learn more about your water
Guides and resources related to Vian's water quality findings.
Explore water quality across Sequoyah
Frequently asked questions
Is Vian, OK tap water safe to drink?
Vian's water quality earned a grade of D+ (51/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #198 out of 358 cities tested in Oklahoma.
What contaminants are in Vian's water?
Lead was measured at 0.0 ppb (90th percentile). 688 violations are on record.
How is Vian's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Vian?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Vian's water come from?
Vian's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 1,471 residents.
What health violations has Vian's water system had?
Vian has 7 health-based violations on record. The most recent violation was recorded in November 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.
How does Vian's water compare to other cities?
Vian ranks #198 out of 358 cities in Oklahoma (better than 45% of state cities) and #12936 out of 15744 cities nationally (18th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.