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Tap water quality report

Upper Moenkopi, AZ

EPA monitoring detected 13 contaminants across the 1 water supplier serving Upper Moenkopi. 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.

1
water supplier
1,740
people served
13
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Upper Moenkopi'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
Nitrate
1970 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Fluoride
721.5 µg/L 18%
of the EPA limit 4000 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Barium
91.25 µg/L 4.6%
of the EPA limit 2000 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Selenium
16.2795 µg/L 33%
of the EPA limit 50 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
TTHM
14.4 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
10.25 µg/L 17%
of the EPA limit 60 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
8.17435 pCi/L 163%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: Upper Moenkopi · 1,740 people · 2017
1/1 SYR4
Combined Uranium
5.8 µg/L 19%
of the EPA limit 30 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2017
1/1 SYR4
Arsenic
4.92 µg/L 49%
of the EPA limit 10 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
4.33385 pCi/L 29%
of the EPA limit 15 pCi/L
Main supplier: Upper Moenkopi · 1,740 people · 2017
1/1 SYR4
Chlorobenzene
1.2 µg/L 1.2%
of the EPA limit 100 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Toluene
1.1 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: Upper Moenkopi · 1,740 people · 2019
1/1 SYR4
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
Main supplier: Upper Moenkopi · 1,740 people · 2025
1/1 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 Upper Moenkopi

SupplierPopulation served
Upper Moenkopi 1,740

Frequently asked questions about Upper Moenkopi tap water

Is Upper Moenkopi tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Upper Moenkopi. 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 Upper Moenkopi?

1 public water supplier report drinking-water monitoring for Upper Moenkopi, Arizona to the EPA. Each is listed above with its population served.

What contaminants are in Upper Moenkopi's water?

The contaminants EPA monitoring detected in Upper Moenkopi include Nitrate, Fluoride, Barium, Selenium, TTHM. 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.