Is Moapa Valley Water District Tap Water Safe? Quality Report

Water source: Ground water
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2007-11-01 → 2007-11-30
MCL	Health-based	Resolved	2007-11-01 → 2007-11-30
MCL	Health-based	Resolved	2007-11-01 → 2007-11-30
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Archived	1990-09-01 → 1990-11-30
MCL	Health-based	Archived	1990-04-01 → 1990-06-30
MCL	Health-based	Archived	1989-10-01 → 1989-12-31
MCL	Health-based	Archived	1980-07-16 → 1980-10-15

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Arsenic	9.1845 µg/L 92% of the EPA limit 10 µg/L worst single sample: 11 µg/L	252/257	SYR4	2012–2019
Nitrate	480 µg/L 4.8% of the EPA limit 10000 µg/L	42/48	SYR4	2012–2019
Copper	137.5 µg/L 11% of the EPA limit 1300 µg/L worst single sample: 170 µg/L	26/29	SYR4	2012–2019
Fluoride	2300 µg/L 57% of the EPA limit 4000 µg/L worst single sample: 2400 µg/L	21/21	SYR4	2012–2019
Dibromochloromethane	4.259 µg/L No EPA limit set worst single sample: 4.49 µg/L	15/20	SYR4	2012–2019
Nitrate-Nitrite	480 µg/L 4.8% of the EPA limit 10000 µg/L	15/15	SYR4	2012–2018
TTHM	14.571 µg/L 18% of the EPA limit 80 µg/L worst single sample: 15.6 µg/L	15/23	SYR4	2012–2019
Bromoform	9.388 µg/L No EPA limit set worst single sample: 11 µg/L	14/20	SYR4	2012–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	13/13	LCR	2025
Bromodichloromethane	1.352 µg/L No EPA limit set worst single sample: 1.4 µg/L	9/20	SYR4	2012–2019
Combined Uranium	4.73075 µg/L 16% of the EPA limit 30 µg/L worst single sample: 4.768 µg/L	6/6	SYR4	2013–2019
Lithium	150 µg/L No EPA limit set	6/6	UCMR-5	2024
Combined Radium (-226 And -228)	2.418 pCi/L 48% of the EPA limit 5 pCi/L worst single sample: 2.72 pCi/L	5/5	SYR4	2013–2019
Dibromoacetic Acid	1.538 µg/L No EPA limit set worst single sample: 1.58 µg/L	5/14	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.538 µg/L 2.6% of the EPA limit 60 µg/L worst single sample: 1.58 µg/L	5/14	SYR4	2012–2019
Chloroform	0.6445 µg/L No EPA limit set worst single sample: 0.6700 µg/L	4/20	SYR4	2012–2019
Barium	64 µg/L 3.2% of the EPA limit 2000 µg/L worst single sample: 65 µg/L	3/3	SYR4	2015
Selenium	2 µg/L 4% of the EPA limit 50 µg/L	3/3	SYR4	2015
Antimony, Total	1.95 µg/L 33% of the EPA limit 6 µg/L worst single sample: 2 µg/L	2/3	SYR4	2015
Chromium	1 µg/L 1% of the EPA limit 100 µg/L	2/3	SYR4	2015
Lead	4.88 µg/L 33% of the EPA limit 15 µg/L worst single sample: 5 µg/L	2/20	SYR4	2019
Gross Alpha, Excl. Radon And U	0.2000 pCi/L 1.3% of the EPA limit 15 pCi/L	1/3	SYR4	2013

91 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-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: DALLEY, LON
Phone: 702-397-6893
Email: [email protected]

Frequently asked questions about Moapa Valley Water District

Is Moapa Valley Water District tap water safe to drink?

EPA monitoring detected 22 contaminants in Moapa 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 Moapa Valley Water District's water?

EPA monitoring detected Arsenic, Nitrate, Copper, Fluoride, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Moapa Valley Water District serve?

Moapa Valley Water District reports serving 8,500 people in Nevada, per its EPA record.

Has Moapa Valley Water District had any water quality violations?

The EPA has 81 violations on file for Moapa Valley Water District, of which 12 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.