Is Hammond, IN Tap Water Safe to Drink?
Hammond, IN tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Contaminants including lithium have been detected at or below guideline thresholds.
Where Does Hammond Get Its Water?
Water in Hammond, IN is provided by 2 public water systems: HAMMOND WATER WORKS DEPARTMENT and WHITING WATER DEPARTMENT.
How Is Hammond Tap Water Treated?
Treated water is disinfected using free chlorine. Treatment includes conventional treatment (coagulation, flocculation, and filtration) and granular activated carbon filtration.
What's in Hammond Tap Water?
The following contaminants were detected most frequently in Hammond public water systems. All detected levels fall at or below EPA health guidelines in this dataset.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 9 µg/L | — | 0 ZIPs | Within guideline |
| PFTrDA | 0.007 µg/L | 0.007 µg/L | 1 ZIP | Within guideline |
| 8:2 FTS | 0.005 µg/L | 0.005 µg/L | 5 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for Hammond
Current EPA monitoring data for Hammond shows contaminant levels within guideline thresholds across all ZIP codes in this dataset. As with all public water systems, sensitive populations may choose to use a certified filter for additional peace of mind.
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 Hammond Tap Water
Is Hammond tap water safe to drink?
Hammond tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Sensitive populations may still choose to use a certified filter as a precaution.
What contaminants are in Hammond tap water?
The most commonly detected contaminants in Hammond water systems include: lithium, PFTrDA, 8:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Hammond get its drinking water?
Hammond receives water from 2 public water systems, including HAMMOND WATER WORKS DEPARTMENT.
Do I need a water filter in Hammond?
Current data does not show guideline exceedances in Hammond. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.
How often is Hammond tap water tested?
Public water systems in Hammond 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 2025-08-26.
Tap water reports by ZIP in Hammond
- 46320 - Columbia Center, Hammond tap water report Some concern
- 46323 - Columbia Center, Hammond tap water report Some concern
- 46324 - Columbia Center, Hammond tap water report Some concern
- 46325 - Hammond tap water report Some concern
- 46327 - North, Hammond tap water report Some concern
- 46394 - Whiting, Hammond tap water report Some concern
Water utilities serving Hammond, 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.
- HAMMOND WATER WORKS DEPARTMENTSome concern
- ROCKWELL SHORES APARTMENTSNo recent federal sampling
Also covers / overlaps with
- North, IN · Township
- Whiting, IN