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Tap water quality report

Las Vegas Valley Water District

EPA monitoring tested this supplier for 112 contaminants and detected 31. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
31
detected
1,539,277
people served
0
health-based violations
Nevada rankingsLead in NevadaPFAS in Nevada
Water source
SWP
Ownership
Local government
Counties served
Clark

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
191
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0056 µg/L 2/61 2025
Pfpea 0.0048 µg/L 2/61 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
7780 µg/L 78%
of the EPA limit 10000 µg/L
 1056/1056 SYR4 2012–2019
Chloroform
55 µg/L
No EPA limit set
 527/530 SYR4 2012–2019
TTHM
94 µg/L 118%
of the EPA limit, in the worst sample — 80 µg/L
 524/528 SYR4 2012–2019
Bromodichloromethane
25 µg/L
No EPA limit set
 511/530 SYR4 2012–2019
Dibromochloromethane
19.5 µg/L
No EPA limit set
 507/530 SYR4 2012–2019
Bromoform
6 µg/L
No EPA limit set
 504/530 SYR4 2012–2019
Dichloroacetic Acid
35 µg/L
No EPA limit set
 499/508 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
58 µg/L 97%
of the EPA limit 60 µg/L
 499/508 SYR4 2012–2019
Trichloroacetic Acid
14 µg/L
No EPA limit set
 498/508 SYR4 2012–2019
Dibromoacetic Acid
28.1 µg/L
No EPA limit set
 497/508 SYR4 2012–2019
Fluoride
753 µg/L 19%
of the EPA limit 4000 µg/L
 427/427 SYR4 2012–2019
Nitrate-Nitrite
7780 µg/L 78%
of the EPA limit 10000 µg/L
 353/353 SYR4 2012–2019
Combined Uranium
3.7 µg/L 12%
of the EPA limit 30 µg/L
 220/221 SYR4 2012–2019
Monochloroacetic Acid
5.4 µg/L
No EPA limit set
 201/508 SYR4 2012–2019
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 143/143 SYR4 2012–2019
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
 139/143 SYR4 2012–2019
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 134/143 SYR4 2012–2019
Monobromoacetic Acid
2.3 µg/L
No EPA limit set
 106/508 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
11 pCi/L 73%
of the EPA limit 15 pCi/L
 69/97 SYR4 2012–2019
Lithium
43.3 µg/L
No EPA limit set
 52/61 UCMR-5 2025
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2025
Copper
11 µg/L 0.8%
of the EPA limit 1300 µg/L
 14/143 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
3.9 µg/L 65%
of the EPA limit 6 µg/L
 13/364 SYR4 2012–2019
Lead
2.8 µg/L 19%
of the EPA limit 15 µg/L
 13/144 SYR4 2012–2019
Combined Radium (-226 And -228)
1.24 pCi/L 25%
of the EPA limit 5 pCi/L
 5/156 SYR4 2012–2019
Picloram
0.3500 µg/L 0.1%
of the EPA limit 500 µg/L
 2/299 SYR4 2012–2019
2,4-D
0.2300 µg/L 0.3%
of the EPA limit 70 µg/L
 1/296 SYR4 2012–2019
Chromium
5.5 µg/L 5.5%
of the EPA limit 100 µg/L
 1/143 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
3.3 µg/L 0.8%
of the EPA limit 400 µg/L
 1/318 SYR4 2012–2019
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OSBORNE, BUCKSHANE
Phone
702-862-3776
Email
BUCK.OSBORNE@LVVWD.COM

Frequently asked questions about Las Vegas Valley Water District

Is Las Vegas Valley Water District tap water safe to drink?

EPA monitoring detected 31 contaminants in Las Vegas Valley Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Las Vegas Valley Water District's water?

EPA monitoring detected Nitrate, Chloroform, TTHM, Bromodichloromethane, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Las Vegas Valley Water District serve?

Las Vegas Valley Water District reports serving 1,539,277 people in Nevada, per its EPA record.

Has Las Vegas Valley Water District had any water quality violations?

The EPA has 191 violations on file for Las Vegas Valley Water District, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.