States ›Ohio ›Warren County ›Carlisle

Carlisle, OH Tap Water Quality 2026

Water quality report for Carlisle, OH — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Carlisle's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Franklin Public Water System PWSID: OH8300412 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.10 ppb, 14% of the action level and no violations are open. PFAS was detected below the federal limit.

A

Carlisle earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.10 ppb — 14% of the federal action level
PFAS detected below the federal limit
2 violations since 2015, 0 health-based
No violations currently open
Carlisle's lead level vs. all Ohio community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.10 ppb — 14% of the federal action level
✓ Lower lead than 35% of Ohio utilities
Population Served
3057
~4835 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
2 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
14% of EPA action level
2.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.10 ppb, 14% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Consumer Confidence Rule OTHER — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

2 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Franklin Public Water System
PWSID OH8300412
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 3,057
Service connections 4,835
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Carlisle tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.10 ppb, 14% of the action level.
Does Carlisle water have PFAS? ▼
PFAS was detected but stayed below the federal limit.
Who supplies water to Carlisle? ▼
Franklin Public Water System (PWSID OH8300412), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-09-06. No significant deficiencies were recorded.

What Should Carlisle Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Ohio

Mason, Oh Tap Water Quality 2026 Warren Lebanon, Oh Tap Water Quality 2026 Warren Springboro, Oh Tap Water Quality 2026 Warren Franklin, Oh Tap Water Quality 2026 Warren Landen, Oh Tap Water Quality 2026 Warren South Lebanon, Oh Tap Water Quality 2026 Warren