Is Patoka, IN Tap Water Safe to Drink?
Graded B, with 13 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
79.4/100
waterverge.com Patoka, IN — Water Quality Report
Patoka's drinking water received a grade of B (79.4 out of 100), indicating good water quality. The city's 1 water system serves approximately 750 residents using groundwater.
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 65 violations on record, including 2 health-based violations. 13 remain unresolved.
What to know about Patoka's water
Patoka ranks #247 out of 414 cities in Indiana for water quality, placing it below average in the state.
Patoka relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Patoka may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Patoka, IN water safe to drink?
Patoka's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 750 residents using groundwater (wells).
Recent water quality updates for Patoka
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Patoka's water quality assessment. Grade: B (79.4/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4363). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3238). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Patoka's water supply.
Well within EPA limits.
Violation history
Patoka's water system has 65 total violations on record, including 2 health-based violations. 13 remain unresolved. 6 violations were issued in the last 5 years.
Flood & environmental risk
Gibson County has experienced 6 federally declared disasters since 1968. 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 White River, Patoka River.
Where does Patoka's water come from?
Patoka's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 750 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include White River (river), Patoka River (river).
What Patoka residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Patoka'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.
Patoka'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 Patoka
Industrial polluters nearby
Reported releases to surface water by facilities near Patoka, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
NIDEC MOTOR CORP PRINCETON PRINCETON, IN47670 | — | — | 3.7 mi |
MID-STATES RUBBER PRODUCTS INC PRINCETON, IN47670 | — | — | 4.0 mi |
GIBSON GENERATING STATION OWENSVILLE, IN47665 | — | — | 8.5 mi |
TOYOTA MOTOR MANUFACTURING INDIANA INC PRINCETON, IN47670 | — | — | 7.3 mi |
TOYOTA BOSHOKU INDIANA LLC PRINCETON, IN47670 | — | — | 4.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Gibson County has experienced 6 federally declared disasters since 1968. 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 Patoka compares by contaminant
Explore where Patoka ranks among all Indiana cities for specific contaminants.
Water source & infrastructure
Where Patoka's water comes from
Patoka's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 750 people through 1 water system.
Water bodies near Patoka
Patoka is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Patoka
| System Name | PWSID | Population | Source |
|---|---|---|---|
| PATOKA WATER & ELECTRIC | IN5226007 | 750 | GW |
How Patoka compares
Full Indiana rankings →Patoka's score of 79.4/100 is above the average of 70/100 among major Indiana cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Indiana rankings →About Patoka, IN
Wikipedia →Patoka is the fourth largest town and sixth largest community in Gibson County, Indiana, United States. As of the 2020 census, Patoka had a population of 706.
Learn more about your water
Guides and resources related to Patoka's water quality findings.
Explore water quality across Gibson
Frequently asked questions
Is Patoka, IN tap water safe to drink?
Patoka's water quality earned a grade of B (79.4/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #247 out of 414 cities tested in Indiana.
What contaminants are in Patoka's water?
Lead was measured at 0.0 ppb (90th percentile). 65 violations are on record.
How is Patoka'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 Patoka?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Patoka's water come from?
Patoka's water is sourced from Groundwater. The city has 1 water system serving approximately 750 residents.
What health violations has Patoka's water system had?
Patoka has 2 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 13 violations remain unresolved.
Is Patoka's groundwater at risk of contamination?
Patoka uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 65 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Patoka's water compare to other cities?
Patoka ranks #247 out of 414 cities in Indiana (better than 40% of state cities) and #8280 out of 15744 cities nationally (47th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Patoka's small water system affect quality?
Patoka's system serves approximately 750 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 65 violations on record.