Water Quality Report · Updated October 07, 2026
HENDERSON CITY OF
HENDERSON CITY OF delivers tap water graded D (59/100) by TapWaterSafety.org. The utility serves approximately 336,534 residents in HENDERSON, Nevada using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Arsenic significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 702-267-3676.
Is HENDERSON tap water safe to drink?
HENDERSON CITY OF delivers tap water that earns a grade of D (59/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including haloacetic acids (haa9) significantly above health guideline.
The utility serves 336,534 residents in HENDERSON, drawing from surface water (purchased).
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Arsenic, Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Dibromochloromethane, Dibromoacetic acid, Dichloroacetic acid, Trichloroacetic acid, Chloroform, Uranium, Bromoform, Nitrate, Nitrate and nitrite, Chromium (hexavalent). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for HENDERSON CITY OF (system ID NV0000076) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for HENDERSON residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for HENDERSON CITY OF.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 34.7 ppb, 579x above the EWG health guideline of 0.06 ppb.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 1.45 ppb, 363x above the EWG health guideline of 0.004 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 48.0 ppb, 320x above the EWG health guideline of 0.15 ppb.
Contact HENDERSON CITY OF
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for HENDERSON
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 59/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
34.7 ppb | 0.06 | — | — | — | — | — | 579× over |
| Arsenic Heavy metal |
1.45 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 363× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
48.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 320× over |
| Bromodichloromethane Disinfection byproduct |
15.3 ppb | 0.06 | — | — | — | — | — | 254× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
18.9 ppb | 0.1 | 60.0 | 60 | — | — | — | 189× over |
| Dibromochloromethane Disinfection byproduct |
13.5 ppb | 0.1 | — | — | — | — | — | 135× over |
| Dibromoacetic acid Disinfection byproduct |
3.34 ppb | 0.03 | — | — | — | — | — | 111× over |
| Dichloroacetic acid Disinfection byproduct |
10.6 ppb | 0.2 | — | — | — | — | — | 53× over |
| Trichloroacetic acid Disinfection byproduct |
4.82 ppb | 0.1 | — | — | — | — | — | 48× over |
| Chloroform Disinfection byproduct |
16.7 ppb | 0.4 | — | — | — | — | — | 42× over |
| Uranium Radiological |
2.49 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 5.8× over |
| Bromoform Disinfection byproduct |
2.46 ppb | 0.5 | — | — | — | — | — | 4.9× over |
| Nitrate Inorganic |
0.524 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 3.7× over |
| Nitrate and nitrite Inorganic |
0.524 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 3.7× over |
| Chromium (hexavalent) Heavy metal |
0.0571 ppb | 0.02 | — | — | — | — | — | 2.9× over |
| Chlorate Disinfection byproduct |
107.9 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
103.7 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Bromochloromethane Other |
0.00675 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
2.08 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Molybdenum Other |
2.55 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.816 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.17 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.059 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
1.18 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.0184 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Bromide Other |
4.33 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.711 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
55.0 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
HENDERSON CITY OF service area
This water system serves 1 community in Clark County, Nevada. Click any city for its dedicated tap water quality page.
Find the right filter for HENDERSON water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.