Is Schertz, TX Tap Water Safe to Drink?
Schertz tap water meets federal Safe Drinking Water Act standards but 1 of 1 ZIP code show detections above EPA health guidelines, primarily for lithium. A certified filter is recommended for households that want an additional layer of protection.
Where Does Schertz Get Its Water?
Water in Schertz, TX is provided by 5 public water systems: CITY OF SCHERTZ, CITY OF SELMA, SAN ANTONIO WATER SYSTEM, GREEN VALLEY SUD and SAWS NORTHEAST.
How Is Schertz Tap Water Treated?
Treated water is disinfected using chloramines and free chlorine and ozone and on-site generated disinfectant. Treatment includes conventional treatment (coagulation, flocculation, and filtration), direct filtration, granular activated carbon filtration, groundwater disinfection, membrane filtration, post-ozone biofiltration and slow sand filtration.
What's in Schertz Tap Water?
The following contaminants were detected most frequently in Schertz public water systems. 1 of 1 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 51.1 µg/L | 10 µg/L | 1 ZIP | Above guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| PFBA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for Schertz
Based on EPA monitoring data, 1 of 1 ZIP codes in Schertz 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 Broad-Spectrum Filters for This Water Profile
This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about Schertz Tap Water
Is Schertz tap water safe to drink?
Schertz 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 Schertz tap water?
The most commonly detected contaminants in Schertz water systems include: lithium, PFTrDA, 11Cl-PF3OUdS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Schertz get its drinking water?
Schertz receives water from 5 public water systems, including CITY OF SCHERTZ.
Do I need a water filter in Schertz?
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 Schertz tap water tested?
Public water systems in Schertz 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 2025-11-12.
Tap water reports by ZIP in Schertz
- 78154 - Schertz tap water report Higher concern
Water utilities serving Schertz, TX
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- CITY OF SCHERTZAction advised
Also covers / overlaps with
- New Braunfels CCD, TX · Township
- San Antonio Northeast CCD, TX · Township
- Schertz-Cibolo CCD, TX · Township
- Selma, TX