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Tap water quality report

Tsaile, Dine College, AZ

EPA monitoring detected 12 contaminants across the 1 water supplier serving Tsaile, Dine College. 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
1,190
people served
12
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Tsaile, Dine College'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
Nitrite
429 µg/L 43%
of the EPA limit 1000 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Fluoride
312 µg/L 7.8%
of the EPA limit 4000 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Barium
210.45 µg/L 11%
of the EPA limit 2000 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
32.545 pCi/L 217%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2017
1/1 SYR4
Combined Radium (-226 And -228)
23.76 pCi/L 475%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2017
1/1 SYR4
TTHM
21.275 µg/L 27%
of the EPA limit 80 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2018
1/1 SYR4
Arsenic
18.71 µg/L 187%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Combined Uranium
3.25 µg/L 11%
of the EPA limit 30 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2017
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.985 µg/L 5%
of the EPA limit 60 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2018
1/1 SYR4
Mercury
0.8750 µg/L 44%
of the EPA limit 2 µg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 people · 2019
1/1 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: Tsaile-Dine College NTUA · 1,190 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 Tsaile, Dine College

SupplierPopulation served
Tsaile-Dine College NTUA 1,190

Frequently asked questions about Tsaile, Dine College tap water

Is Tsaile, Dine College tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Tsaile, Dine College. 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 Tsaile, Dine College?

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

What contaminants are in Tsaile, Dine College's water?

The contaminants EPA monitoring detected in Tsaile, Dine College include Nitrite, Fluoride, Barium, Gross Alpha, Excl. Radon And U, Combined Radium (-226 And -228). 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.