Is Tap Water Safe to Drink in Henderson?
Yes, tap water in Henderson is safe to drink. Like Las Vegas, the city receives Colorado River water from Lake Mead treated by the Southern Nevada Water Authority, and it meets all EPA standards. It is notably hard.
Water Source
The City of Henderson distributes water sourced almost entirely from Lake Mead on the Colorado River, treated by the Southern Nevada Water Authority's advanced regional facilities, with ozonation as a primary disinfection step.
EPA Compliance Status
Meets all federal Safe Drinking Water Act standards. SNWA operates some of the most closely monitored treatment works in the country given the region's total dependence on the drought-stressed Colorado River.
Notable Contaminants & Context
- •No significant compliance concerns; SNWA's ozone-based treatment and intensive monitoring track hundreds of constituents
- •High natural mineral content from Lake Mead makes the water very hard — a taste and appliance issue, not a health one
- •Trace pharmaceutical and PFAS monitoring is ongoing regionally, with results within federal requirements
Water Quality Data
Key contaminants detected vs. regulatory limits. All values from the most recent published report — Source: City of Henderson Public Utilities 2024 CCR.
| Contaminant | Detected | Limit | Status |
|---|---|---|---|
| Chlorine (total) | 1.8 mg/L | 4.0 mg/L | ✓ |
| Fluoride | 0.73 mg/L | 4.0 mg/L | ✓ |
| Lead (90th percentile) | 2.7 µg/L | 15.0 µg/L | ✓ |
| Nitrate (as N) | 1.6 mg/L | 10.0 mg/L | ✓ |
| TTHM (Total Trihalomethanes) | 36.9 µg/L | 80.0 µg/L | ✓ |
| HAA5 (Haloacetic Acids) | 25.8 µg/L | 60.0 µg/L | ✓ |
✓ = below limit ⚠ = above health goal ✗ = exceeds guideline
How It Compares
Henderson's water is functionally identical to Las Vegas's: same lake, same SNWA treatment, same hardness. The valley's near-total wastewater recycling back to Lake Mead is among the most aggressive water reuse loops in the U.S.
Tips
- •Softeners are popular for scale control but unnecessary for safety
- •Chilling tap water largely resolves mineral taste complaints
- •SNWA publishes extensive water quality data online
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •US EPA Safe Drinking Water Act regulations
- •EWG Tap Water Database
- •The utility's most recent Consumer Confidence Report (CCR)
- •WHO Guidelines for Drinking-water Quality