Is Enon, OH Tap Water Safe to Drink?
Graded A- — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
85.5/100
waterverge.com Enon, OH — Water Quality Report
Enon's drinking water received a grade of A- (85.5 out of 100), indicating good water quality. The city's 2 water systems serve approximately 2,500 residents using groundwater.
Lead levels were measured at 1.2 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 72 violations on record, including 0 health-based violations. 6 remain unresolved.
What to know about Enon's water
Enon ranks #124 out of 511 cities in Ohio for water quality, placing it above average in the state.
Enon 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, Enon may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Enon, OH water safe to drink?
Enon's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 2,500 residents using groundwater (wells).
Recent water quality updates for Enon
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Enon's water quality assessment. Grade: A- (85.5/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Public Notice.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-3250). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Enon's water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Enon's water system has 72 total violations on record, including 0 health-based violations. 6 remain unresolved. 1 violation was issued in the last 5 years.
Flood & environmental risk
Clark County has experienced 1 federally declared disaster since 2005. 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 Little Miami River Near Oldtown, Mad River At St Paris Pike At Eagle City, Mad River Near Springfield.
Where does Enon's water come from?
Enon's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 2,500 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Little Miami River Near Oldtown (river), Mad River At St Paris Pike At Eagle City (river), Mad River Near Springfield (river).
What Enon residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Enon'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.
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 Enon
Industrial polluters nearby
Reported releases to surface water by facilities near Enon, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
FAIRBORN CEMENT CO XENIA, OH45385 | — | — | 5.9 mi |
MIAMI PRODUCTS & CHEMICAL CO FAIRBORN, OH45324 | — | — | 4.2 mi |
RUST-OLEUM FAIRBORN FAIRBORN, OH45324 | — | — | 3.2 mi |
PFI PRECISION NEW CARLISLE OHIO NEW CARLISLE, OH45344 | — | — | 7.6 mi |
CONCRETE SEALANTS INC TIPP CITY, OH45371 | — | — | 8.7 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Enon
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- DONNELSVILLE CONTAMINATED AQUIFER3.9 mi
- NEW CARLISLE LANDFILL6.7 mi
- WRIGHT PATTERSON AIR FORCE BASE8.3 mi
Source: EPA Superfund National Priorities List
Flood & disaster history
Clark County has experienced 1 federally declared disaster since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Enon's water supply, we recommend the following filter types.
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. | 1.2 | 15 | ppb | Inorganic | Safe |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 256.00 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level (90th percentile)
Latest reading: 114.600 mg/L (2005)
EPA action level: 1.3 mg/L
See how Enon compares by contaminant
Explore where Enon ranks among all Ohio cities for specific contaminants.
Water source & infrastructure
Where Enon's water comes from
Enon'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 2,500 people through 2 water systems.
Water bodies near Enon
Enon is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Enon
| System Name | PWSID | Population | Source |
|---|---|---|---|
| ENON VILLAGE PWS | OH1201812 | 2,415 | GW |
| ENON HEIGHTS MHP PWS | OH1202012 | 85 | GW |
How Enon compares
Full Ohio rankings →Enon's score of 85.5/100 is above the average of 58/100 among major Ohio cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Ohio rankings →About Enon, OH
Learn more about your water
Guides and resources related to Enon's water quality findings.
Explore water quality across Clark
Frequently asked questions
Is Enon, OH tap water safe to drink?
Enon's water quality earned a grade of A- (85.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #124 out of 511 cities tested in Ohio.
What contaminants are in Enon's water?
Lead was measured at 1.2 ppb (90th percentile). 72 violations are on record.
How is Enon'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 Enon?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Enon's water come from?
Enon's water is sourced from Groundwater. The city has 2 water systems serving approximately 2,500 residents.
Is Enon's groundwater at risk of contamination?
Enon 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 72 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 Enon's water compare to other cities?
Enon ranks #124 out of 511 cities in Ohio (better than 76% of state cities) and #5291 out of 15744 cities nationally (66th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.