Nevada
Water quality data from the EPA Safe Drinking Water Information System
Water Systems
1,566
Active public water systems
Population Served
3.54M
Residents with piped water
Lead Violations
10
Systems exceeding 15 ppb
Copper Violations
55
Lead & Copper Rule
Average Lead Level
EPA Action Level: 15 ppb
MCLG (health goal): 0 ppb
Average across 551 systems with reported lead data.
Violations Detected
65 water systems in Nevada have reported violations under the Lead and Copper Rule. These utilities are required to notify customers and take corrective action.
Water Systems: Highest Lead Levels
| System Name | City | Population | Lead Level | Status | Sample Date |
|---|---|---|---|---|---|
| LAS VEGAS | 15,500 | 8.00 ppb | OK | 2025-12-31 | |
| NELLIS AFB | 19,081 | 6.66 ppb | OK | 2025-12-31 | |
| HENDERSON | 336,534 | 3.80 ppb | OK | 2025-12-31 | |
| ELKO | 23,000 | 3.00 ppb | OK | 2025-12-31 | |
| CARSON CITY | 59,000 | 2.70 ppb | OK | 2023-12-31 | |
| BOULDER CITY | 15,000 | 2.41 ppb | OK | 2024-12-31 | |
| LAS VEGAS | 1,539,277 | 2.08 ppb | OK | 2025-12-31 | |
| LAS VEGAS | 19,387 | 2.00 ppb | OK | 2025-12-31 | |
| SUN VALLEY | 17,000 | 2.00 ppb | OK | 2024-12-31 | |
| MCCARRAN | 13,360 | 2.00 ppb | OK | 2025-12-31 | |
| NORTH LAS VEGAS | 376,515 | 1.38 ppb | OK | 2024-12-31 | |
| DAYTON | 16,000 | 0.80 ppb | OK | 2023-12-31 | |
| RENO | 442,000 | 0.00 ppb | OK | 2025-12-31 | |
| MESQUITE | 26,000 | 0.00 ppb | OK | 2024-12-31 | |
| FERNLEY | 23,064 | 0.00 ppb | OK | 2023-12-31 |
Showing top 15 of 508 systems with lead data. Action level: 15 ppb.
Systems With Active Violations
These water systems have exceeded EPA limits and must take corrective action.
NORTH LAS VEGAS · Pop. 376,515
Lead: 1.38 ppb (2024-12-31)
HENDERSON · Pop. 336,534
Lead: 3.80 ppb (2025-12-31)
NELLIS AFB · Pop. 19,081
Lead: 6.66 ppb (2025-12-31)
LAS VEGAS · Pop. 15,500
Lead: 8.00 ppb (2025-12-31)
PAHRUMP · Pop. 11,322
Lead: 0.00 ppb (2025-12-31)
Water Source Types
Air Quality
GoodAvg AQI
45
PM2.5
6.8 µg/m³
Unhealthy Days
8
Primary Pollutant
PM2.5, Dust
Source: EPA AirNow & American Lung Association 2024 State of the Air. AQI scale: 0–50 Good · 51–100 Moderate · 101–150 Sensitive Groups · 151+ Unhealthy.
PFAS Contamination
Moderate DetectionPFAS (per- and polyfluoroalkyl substances), known as “forever chemicals,” are a group of synthetic chemicals that persist indefinitely in the environment and human body. The EPA set a maximum contaminant level (MCL) of 4 parts per trillion (ppt) for PFOA and PFOS in April 2024. View national PFAS tracker →
Systems Tested
98
PFAS Detected
32
Detection Rate
32.7%
Exceeding MCL (4 ppt)
6(6.1%)
Highest recorded level: 18 ppt (EPA MCL: 4 ppt). Nellis AFB and Fallon NAS are key contamination sources