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Tap water quality report

ZIP 85387 — Surprise, AZ

EPA monitoring across the 2 water suppliers serving ZIP 85387 in Surprise, AZ detected 25 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
34,226
people served
25
contaminants found

What was found in ZIP 85387

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
710 µg/L 7.1%
of the EPA limit 10000 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
Highest in the ZIP: 1300 µg/L — BEARDSLEY WATER COMPANY 1 · 10,263 people · 2019
2/2 SYR4
Fluoride
822.5 µg/L 21%
of the EPA limit 4000 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
2/2 SYR4
Nitrate-Nitrite
703 µg/L 7%
of the EPA limit 10000 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Barium
250 µg/L 13%
of the EPA limit 2000 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
2/2 SYR4
Copper
110.3 µg/L 8.5%
of the EPA limit 1300 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2018
Highest in the ZIP: 167.5 µg/L — BEARDSLEY WATER COMPANY 1 · 10,263 people · 2019
2/2 SYR4
Lithium
51 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2025
2/2 UCMR-5
TTHM
29.355 µg/L 37%
of the EPA limit 80 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Lead
26.1 µg/L 174%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2018
2/2 SYR4
Chromium
25.25 µg/L 25%
of the EPA limit 100 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
2/2 SYR4
Xylenes, Total
16.1 µg/L 0.2%
of the EPA limit 10000 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Dibromochloromethane
14.515 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Bromodichloromethane
10.035 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Arsenic
6.32 µg/L 63%
of the EPA limit 10 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
2/2 SYR4
Bromoform
6.32 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
4.88 µg/L 8.1%
of the EPA limit 60 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Selenium
4.52 µg/L 9%
of the EPA limit 50 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Combined Uranium
2.52 µg/L 8.4%
of the EPA limit 30 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Chloroform
2.52 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
2.06 pCi/L 14%
of the EPA limit 15 pCi/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.665 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Ethylbenzene
1.6 µg/L 0.2%
of the EPA limit 700 µg/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Dichloroacetic Acid
1.3 µg/L
No EPA limit set
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.8900 pCi/L 18%
of the EPA limit 5 pCi/L
Main supplier: DESERT OASIS · 23,963 people · 2019
1/2 SYR4
2,4-D
0.3200 µg/L 0.5%
of the EPA limit 70 µg/L
Highest in the ZIP: BEARDSLEY WATER COMPANY 1 · 10,263 people · 2017
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: DESERT OASIS · 23,963 people · 2024
2/2 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.

Water suppliers serving ZIP 85387

SupplierStatePopulation served
DESERT OASIS AZ 23,963
BEARDSLEY WATER COMPANY 1 AZ 10,263

Frequently asked questions about ZIP 85387 tap water

Is the tap water in ZIP 85387 safe to drink?

EPA testing detected 25 contaminants across the water suppliers serving ZIP 85387. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 85387?

2 public water suppliers report EPA drinking-water monitoring for ZIP 85387. Each is listed above with its population served.

What contaminants are in ZIP 85387's water?

EPA monitoring detected Nitrate, Fluoride, Nitrate-Nitrite, Barium, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.