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Tap water quality report

Moapa, NV

EPA monitoring detected 22 contaminants across the 2 water suppliers serving Moapa. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
8,525
people served
22
contaminants found
Nevada rankings Lead in Nevada PFAS in Nevada

What was found in Moapa's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
2300 µg/L 57%
of the EPA limit 4000 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
2/2 SYR4
Nitrate
480 µg/L 4.8%
of the EPA limit 10000 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
2/2 SYR4
Nitrate-Nitrite
480 µg/L 4.8%
of the EPA limit 10000 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2018
2/2 SYR4
Lithium
150 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2024
1/2 UCMR-5
Copper
137.5 µg/L 11%
of the EPA limit 1300 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Barium
64 µg/L 3.2%
of the EPA limit 2000 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2015
2/2 SYR4
TTHM
14.571 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Bromoform
9.388 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Arsenic
9.1845 µg/L 92%
of the EPA limit 10 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
2/2 SYR4
Lead
4.88 µg/L 33%
of the EPA limit 15 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Combined Uranium
4.73075 µg/L 16%
of the EPA limit 30 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
0.2000 pCi/L 1.3%
of the EPA limit 15 pCi/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2013
Highest in the city: 4.63 pCi/L — SNWA COYOTE SPRING VALLEY-MOAPA PWS · 25 people · 2015
2/2 SYR4
Dibromochloromethane
4.259 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2015
Highest in the city: 3 µg/L — SNWA COYOTE SPRING VALLEY-MOAPA PWS · 25 people · 2015
2/2 SYR4
Combined Radium (-226 And -228)
2.418 pCi/L 48%
of the EPA limit 5 pCi/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Antimony, Total
1.95 µg/L 33%
of the EPA limit 6 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2015
2/2 SYR4
Dibromoacetic Acid
1.538 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
1.538 µg/L 2.6%
of the EPA limit 60 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Bromodichloromethane
1.352 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2015
1/2 SYR4
Chloroform
0.6445 µg/L
No EPA limit set
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2019
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: MOAPA VALLEY WATER DISTRICT · 8,500 people · 2025
1/2 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Moapa

SupplierPopulation served
MOAPA VALLEY WATER DISTRICT 8,500
SNWA COYOTE SPRING VALLEY-MOAPA PWS 25

Frequently asked questions about Moapa tap water

Is Moapa tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Moapa. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Moapa?

2 public water suppliers report drinking-water monitoring for Moapa, Nevada to the EPA. Each is listed above with its population served.

What contaminants are in Moapa's water?

The contaminants EPA monitoring detected in Moapa include Fluoride, Nitrate, Nitrate-Nitrite, Lithium, Copper. The full list, with the level at the main supplier and the data source, is in the table above.

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.