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Tap water quality report

Tubac, AZ

EPA monitoring detected 16 contaminants across the 5 water suppliers serving Tubac. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

5
water suppliers
3,431
people served
16
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Tubac's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
7100 µg/L 71%
of the EPA limit 10000 µg/L
 5/5 SYR4
Nitrate-Nitrite
7100 µg/L 71%
of the EPA limit 10000 µg/L
 5/5 SYR4
Fluoride
1800 µg/L 45%
of the EPA limit 4000 µg/L
 5/5 SYR4
Copper
721 µg/L 55%
of the EPA limit 1300 µg/L
 5/5 SYR4
Lead
75.4 µg/L 503%
of the EPA limit, in the worst sample — 15 µg/L
 5/5 SYR4
Barium
60 µg/L 3%
of the EPA limit 2000 µg/L
 5/5 SYR4
TTHM
32 µg/L 40%
of the EPA limit 80 µg/L
 2/5 SYR4
Arsenic
23 µg/L 230%
of the EPA limit, in the worst sample — 10 µg/L
 5/5 SYR4
Chromium
22 µg/L 22%
of the EPA limit 100 µg/L
 3/5 SYR4
Combined Uranium
18.1 µg/L 60%
of the EPA limit 30 µg/L
 1/5 SYR4
Total Haloacetic Acids (HAA5)
4.9 µg/L 8.2%
of the EPA limit 60 µg/L
 2/5 SYR4
Gross Alpha, Excl. Radon And U
1.9 pCi/L 13%
of the EPA limit 15 pCi/L
 1/5 SYR4
Di(2-ethylhexyl) Phthalate
1.7 µg/L 28%
of the EPA limit 6 µg/L
 1/5 SYR4
Pentachlorophenol
1 µg/L 100%
of the EPA limit 1 µg/L
 2/5 SYR4
Combined Radium (-226 And -228)
0.4000 pCi/L 8%
of the EPA limit 5 pCi/L
 1/5 SYR4
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
 5/5 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 single worst sample on record — 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 Tubac

SupplierPopulation served
EPCOR - TUBAC 2,076
BACA FLOAT WATER COMPANY 1,090
AVALON GARDENS WATER SYSTEM 100
DESERT PARADISE MHP LLC 90
TRUJILLO TRAIL DWID 75

Frequently asked questions about Tubac tap water

Is Tubac tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Tubac. 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 Tubac?

5 public water suppliers report drinking-water monitoring for Tubac, Arizona to the EPA. Each is listed above with its population served.

What contaminants are in Tubac's water?

The contaminants EPA monitoring detected in Tubac include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lead. The full list, with the highest level found 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.