Drinking water quality · 2024
· Verified
What's in Henderson, NV tap water
15 contaminants were measured in the Henderson, NV water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 15
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- NV
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound detected in Henderson, NV
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
Lithium
● Detected (no federal limit)near national p90 (76.59999999999991 mg/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Henderson, NV buys its drinking water from SOUTHERN NEVADA WATER SYSTEM.
Source
Treatment
- R-24 AERATOR ST29
- R-24A AERATOR ST30
- CHLORINATOR FOR CC FROM AMS TP AT SNWS
- + 7 more
Distribution
Also buys water from SOUTHERN NEVADA WATER SYSTEM.
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in Henderson, NV
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2014 | 0.103 mg/L 1.3× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2012 | 0.043 mg/L within | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
GROSS ALPHA worst: 2017 | 4.1 pCi/L within | 15 pCi/L | '15'17 |
DEHP worst: 2016 | 0.0015 mg/L within | 0.006 mg/L | '16 |
FLUORIDE worst: 2014 | 0.81 mg/L within | 4 mg/L | '12'13'14'15'16'17'18'19 |
ARSENIC worst: 2016 | 0.002 mg/L within below national p90 | 0.01 mg/L | '12'13'14'15'16'17'18'19 |
RADIUM 226 228 worst: 2016 | 0.72 pCi/L within below national p90 | 5 pCi/L | '16 |
BARIUM worst: 2016 | 0.14 mg/L within near national p90 | 2 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2015 | 0.68 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2015 | 0.68 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
SELENIUM worst: 2016 | 0.003 mg/L within | 0.05 mg/L | '12'13'14'15'16'17'18'19 |
DIQUAT worst: 2016 | 0.00048 mg/L within | 0.02 mg/L | '16 |
GLYPHOSATE worst: 2016 | 0.0051 mg/L within | 0.7 mg/L | '16 |
URANIUM worst: 2015 | 0.0046 ug/L within below national p90 | 30 ug/L | '12'13'14'15'16'17'18'19 |
COPPER worst: 2015 | 0.0052 mg/L below national p90 | — | '15'18'19 |
DBAA worst: 2012 | 0.0037 mg/L | — | '12'13'14'15'16'17'18'19 |
DCAA worst: 2012 | 0.029 mg/L | — | '12'13'14'15'16'17'18'19 |
MBAA worst: 2012 | 0.001 mg/L | — | '12'13'14'15'16'17'18'19 |
MCAA worst: 2012 | 0.0028 mg/L | — | '12'13'14'16'17'18 |
TCAA worst: 2012 | 0.013 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.024 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2012 | 0.0024 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.042 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.016 mg/L | — | '12'13'14'15'16'17'18'19 |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 4.3 ug/LAverageRiver Mountains Water Treatment Facility | 10 ug/LMCL | Within the limit |
+By source (2)— Alfred Merritt Smith Water Treatment Facility, River Mountains Water Treatment Facility
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0.3AverageCity Of Henderson Distribution System | 5MCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.78 mg/LAverageCity Of Henderson Distribution System | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 2.5 ug/LAverageCity Of Henderson Distribution System | 0 ug/LMCLG | Detected — no federal limit |
People also ask about Henderson, NV's water
+Is Henderson, NV tap water safe to drink in 2024?
Every one of the 15 contaminants measured in Henderson, NV's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Henderson, NV tap water?
15 contaminants were measured in Henderson, NV's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 13 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Henderson, NV tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: TTHM. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Henderson, NV's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Henderson, NV's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.