Is Carlisle, OH tap water safe?
The short answer
1 of the 6 utilities serving Carlisle has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Ohio’s records: Montgomery County Water Services 1 PWS.
Franklin Public Water System, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 4.1 ppt, above EPA’s new limit, which takes effect in 2029.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Carlisle’s ZIP codes, from EPA’s estimates.
- Open report
Franklin Public Water System
Ohio · serves 11,690 people · about 1,400 in Carlisle
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 4.1 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Miamisburg City PWS
Ohio · serves 19,790 people · about 220 in Carlisle
1 result above the health goal. The worst: Lead at 1.4 ppb, above the health goal.
No health-based violations since 2016
- Open report
Carlisle City PWS
Ohio · serves 1,675 people · about 220 in Carlisle
1 result above the health goal. The worst: Lead at 1.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Middletown City PWS
Ohio · serves 51,229 people · about 140 in Carlisle
1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOS at 4.3 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Montgomery County Water Services 1 PWS
Ohio · serves 150,207 people · about 120 in Carlisle
1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 9.6 ppt, above EPA’s new limit, which takes effect in 2029.
2 health-based violations since 2016
- Open report
Southwest Regional Water District
Ohio · serves 42,856 people · under 100 in Carlisle
1 result above the health goal. The worst: Lead at 1.4 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Franklin Public Water System’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: PFOS, Lead, Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: PFOS, Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: PFOS, Lead, Arsenic
Water testing near Carlisle
The 3 labs Ohio certifies closest to Carlisle, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Greene County Sanitary Engineering Laboratory
Beavercreek, OH · about 17 miles
Certified for bacteria, nitrate, minerals and other inorganics
Dayton Central Water Quality Laboratory
Dayton, OH · about 18 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Pace Analytical Services, LLC - Dayton
Englewood, OH · about 22 miles
Certified for bacteria, nitrate, minerals and other inorganics
Which ZIP codes are in Carlisle: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Ohio EPA, laboratories certified/accepted to perform analyses on public drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Carlisle
Other towns in Warren County with a page of their own.
What to do next
- Read Franklin Public Water System’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water