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Tap water quality report

Eloy, AZ

EPA monitoring detected 17 contaminants across the 4 water suppliers serving Eloy. 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.

4
water suppliers
17,413
people served
17
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Eloy'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
8410.5 µg/L 84%
of the EPA limit 10000 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2019
Highest in the city: 17735 µg/L — VILLA GRANDE DWID · 283 people · 2019
4/4 SYR4
Nitrate-Nitrite
8489.5 µg/L 85%
of the EPA limit 10000 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2013
Highest in the city: 17625 µg/L — VILLA GRANDE DWID · 283 people · 2019
4/4 SYR4
Fluoride
407.5 µg/L 10%
of the EPA limit 4000 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2017
Highest in the city: 946.5 µg/L — SILVERBELL IRRIGATION & DRAINAGE DIST · 375 people · 2019
4/4 SYR4
Copper
320 µg/L 25%
of the EPA limit 1300 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2017
4/4 SYR4
Barium
160 µg/L 8%
of the EPA limit 2000 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2017
4/4 SYR4
Lithium
89.2 µg/L
No EPA limit set
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2023
2/4 UCMR-5
TTHM
48.8 µg/L 61%
of the EPA limit 80 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2019
Highest in the city: 59.75 µg/L — ELOY CITY OF · 7,903 people · 2019
4/4 SYR4
Lead
6.22 µg/L 41%
of the EPA limit 15 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2017
Highest in the city: 22.49 µg/L — SILVERBELL IRRIGATION & DRAINAGE DIST · 375 people · 2018
4/4 SYR4
Chromium
2.86 µg/L 2.9%
of the EPA limit 100 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2017
Highest in the city: 19.5 µg/L — SILVERBELL IRRIGATION & DRAINAGE DIST · 375 people · 2019
4/4 SYR4
Arsenic
10.7 µg/L 107%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2019
Highest in the city: 15.38 µg/L — SILVERBELL IRRIGATION & DRAINAGE DIST · 375 people · 2019
4/4 SYR4
Total Haloacetic Acids (HAA5)
10.74 µg/L 18%
of the EPA limit 60 µg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2019
4/4 SYR4
Selenium
8.3 µg/L 17%
of the EPA limit 50 µg/L
Highest in the city: VILLA GRANDE DWID · 283 people · 2019
2/4 SYR4
Bromoform
4.4 µg/L
No EPA limit set
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2014
3/4 SYR4
Dibromoacetic Acid
2.6 µg/L
No EPA limit set
Highest in the city: VILLA GRANDE DWID · 283 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
1.66 pCi/L 33%
of the EPA limit 5 pCi/L
Highest in the city: SILVERBELL IRRIGATION & DRAINAGE DIST · 375 people · 2019
1/4 SYR4
Dibromochloromethane
1.2 µg/L
No EPA limit set
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2014
1/4 SYR4
Lead
0.00050 mg/L 3.3%
of the EPA limit 0.0150 mg/L
Main supplier: CCA - ELOY COMPLEX · 8,852 people · 2023
Highest in the city: 0.0018 mg/L — ELOY CITY OF · 7,903 people · 2025
4/4 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 Eloy

SupplierPopulation served
CCA - ELOY COMPLEX 8,852
ELOY CITY OF 7,903
SILVERBELL IRRIGATION & DRAINAGE DIST 375
VILLA GRANDE DWID 283

Frequently asked questions about Eloy tap water

Is Eloy tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Eloy. 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 Eloy?

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

What contaminants are in Eloy's water?

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