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Tap water quality report

Pioneer, AZ

EPA monitoring detected 11 contaminants across the 1 water supplier serving Pioneer. 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
583
people served
11
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Pioneer'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
3910 µg/L 39%
of the EPA limit 10000 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2019
1/1 SYR4
Nitrate-Nitrite
3300 µg/L 33%
of the EPA limit 10000 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2013
1/1 SYR4
Fluoride
420 µg/L 11%
of the EPA limit 4000 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2018
1/1 SYR4
Copper
203 µg/L 16%
of the EPA limit 1300 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2018
1/1 SYR4
TTHM
20.93 µg/L 26%
of the EPA limit 80 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2017
1/1 SYR4
Chromium
20 µg/L 20%
of the EPA limit 100 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2013
1/1 SYR4
Arsenic
15.6 µg/L 156%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2019
1/1 SYR4
Barium
10 µg/L 0.5%
of the EPA limit 2000 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2013
1/1 SYR4
Total Haloacetic Acids (HAA5)
9.595 µg/L 16%
of the EPA limit 60 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2017
1/1 SYR4
Lead
4.96 µg/L 33%
of the EPA limit 15 µg/L
Main supplier: PIONEER RV RESORT · 583 people · 2018
1/1 SYR4
Lead
0.0093 mg/L 62%
of the EPA limit 0.0150 mg/L
Main supplier: PIONEER RV RESORT · 583 people · 2024
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 Pioneer

SupplierPopulation served
PIONEER RV RESORT 583

Frequently asked questions about Pioneer tap water

Is Pioneer tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Pioneer. 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 Pioneer?

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

What contaminants are in Pioneer's water?

The contaminants EPA monitoring detected in Pioneer include Nitrate, Nitrate-Nitrite, Fluoride, Copper, 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.