Is St. Leon, IN Tap Water Safe to Drink?
St. Leon tap water meets federal Safe Drinking Water Act standards but 1 of 1 ZIP code show detections above EPA health guidelines, primarily for PFTrDA. A certified filter is recommended for households that want an additional layer of protection.
Where Does St. Leon Get Its Water?
Water in St. Leon, IN is provided by 5 public water systems: FRANKLIN COUNTY WATER ASSOCIATION, HOOSIER HILLS REGIONAL WATER DISTRICT, NORTH DEARBORN WATER CORPORATION, SOUTHWEST REGIONAL WATER DISTRICT and TRI-TOWNSHIP WATER CORPORATION.
How Is St. Leon Tap Water Treated?
Treated water is disinfected using chloramines. Treatment includes conventional treatment (coagulation, flocculation, and filtration), groundwater disinfection, ion exchange, in-line filtration and slow sand filtration.
What's in St. Leon Tap Water?
The following contaminants were detected most frequently in St. Leon public water systems. 1 of 1 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| PFTrDA | 0.007 µg/L | 0.007 µg/L | 1 ZIP | Above guideline |
| lithium | 9 µg/L | — | 0 ZIPs | Within guideline |
| 8:2 FTS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| PFBA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for St. Leon
Based on EPA monitoring data, 1 of 1 ZIP codes in St. Leon have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.
Best Filters for PFAS Water Profile
PFAS compounds are detected in this water supply. A reverse osmosis (RO) system or an activated-carbon filter specifically certified under NSF/ANSI P473 is required for reliable PFAS reduction. Standard pitcher and faucet filters without P473 certification do not remove PFAS.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about St. Leon Tap Water
Is St. Leon tap water safe to drink?
St. Leon tap water meets Safe Drinking Water Act requirements but 1 of 1 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.
What contaminants are in St. Leon tap water?
The most commonly detected contaminants in St. Leon water systems include: PFTrDA, lithium, 8:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does St. Leon get its drinking water?
St. Leon receives water from 5 public water systems, including FRANKLIN COUNTY WATER ASSOCIATION.
Do I need a water filter in St. Leon?
If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.
How often is St. Leon tap water tested?
Public water systems in St. Leon are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-09-08.
Tap water reports by ZIP in St. Leon
- 47012 - St. Leon tap water report Higher concern
Water utilities serving St. Leon, IN
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
Also covers / overlaps with
- Bath, IN · Township
- Blooming Grove, IN · Township
- Brookville, IN
- Butler, IN · Township
- Fairfield, IN · Township
- Highland, IN · Township
- Springfield, IN · Township