Is Carroll, OH Tap Water Safe to Drink?
Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
93.4/100
waterverge.com Carroll, OH — Water Quality Report
Carroll's drinking water received a grade of A (93.4 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 524 residents using purchased ground 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 29 violations on record, including 0 health-based violations. 3 remain unresolved.
What to know about Carroll's water
Carroll ranks #10 out of 511 cities in Ohio for water quality, placing it one of the best in the state.
Carroll purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Carroll may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Carroll, OH water safe to drink?
Carroll's drinking water has significant quality concerns based on EPA testing data. With a grade of A (93.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 524 residents using groundwater (wells).
Recent water quality updates for Carroll
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Carroll's water quality assessment. Grade: A (93.4/100).
Contaminants: Coliform (TCR).
Contaminants: Lead and Copper Rule, Coliform (TCR).
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-3250). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-243). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Carroll's water supply.
Well within EPA limits.
Violation history
Carroll's water system has 29 total violations on record, including 0 health-based violations. 3 remain unresolved.
Flood & environmental risk
Fairfield County has experienced 2 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 Hocking River At Lancaster, Blacklick Creek Near Pickerington, Sycamore Creek Below Pickerington.
Where does Carroll's water come from?
Carroll's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 524 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Hocking River At Lancaster (river), Blacklick Creek Near Pickerington (river), Sycamore Creek Below Pickerington (river).
What Carroll residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Carroll'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 Carroll
Industrial polluters nearby
Reported releases to surface water by facilities near Carroll, ranked by pounds discharged annually.
Total reported releases to surface water: 1 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
OHIO PAPERBOARD BALTIMORE, OH43105 | Lead | 1 | 6.2 mi |
HFI LLC (0125034004) CANAL WINCHESTER, OH43110 | — | — | 7.2 mi |
TS TRIM INDUSTRIES INC. CANAL WINCHESTER, OH43110 | — | — | 7.4 mi |
3 SIGMA LLC PLANT 3 LANCASTER, OH43130 | — | — | 5.1 mi |
CROWN CORK & SEAL CO (USA) INC CROWN CLOSURES DIV LANCASTER, OH43130 | — | — | 5.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Fairfield County has experienced 2 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 Carroll compares by contaminant
Explore where Carroll ranks among all Ohio cities for specific contaminants.
Water source & infrastructure
Where Carroll's water comes from
Carroll purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Carroll's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 524 people through 1 water system.
Water bodies near Carroll
Carroll is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Carroll
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CARROLL VILLAGE PWS | OH2300312 | 524 | GWP |
How Carroll compares
Full Ohio rankings →Carroll's score of 93.4/100 is above the average of 58/100 among major Ohio cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Ohio rankings →About Carroll, OH
Wikipedia →Carroll is a village in Fairfield County, Ohio, United States. The population was 501 at the 2020 census.
Learn more about your water
Guides and resources related to Carroll's water quality findings.
Explore water quality across Fairfield
Frequently asked questions
Is Carroll, OH tap water safe to drink?
Carroll's water quality earned a grade of A (93.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #10 out of 511 cities tested in Ohio.
What contaminants are in Carroll's water?
Lead was measured at 0.0 ppb (90th percentile). 29 violations are on record.
How is Carroll'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 Carroll?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Carroll's water come from?
Carroll's water is sourced from Purchased ground water. The city has 1 water system serving approximately 524 residents.
Is Carroll's groundwater at risk of contamination?
Carroll 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 29 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 Carroll's water compare to other cities?
Carroll ranks #10 out of 511 cities in Ohio (better than 98% of state cities) and #869 out of 15744 cities nationally (95th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Carroll's small water system affect quality?
Carroll's system serves approximately 524 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 29 violations on record.