← Surprise, AZ

Tap water quality report

ZIP 85355 — Surprise, AZ

EPA monitoring across the 1 water supplier serving ZIP 85355 in Surprise, AZ detected 14 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.

1
water supplier
127,718
people served
14
contaminants found

What was found in ZIP 85355

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
4970 µg/L 50%
of the EPA limit 10000 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Nitrate-Nitrite
4692.5 µg/L 47%
of the EPA limit 10000 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Fluoride
1262.5 µg/L 32%
of the EPA limit 4000 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Copper
278 µg/L 21%
of the EPA limit 1300 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Barium
130 µg/L 6.5%
of the EPA limit 2000 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Lithium
95.7 µg/L
No EPA limit set
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2024
1/1 UCMR-5
TTHM
86.41 µg/L 108%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Chromium
59.1 µg/L 59%
of the EPA limit 100 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Lead
49.2 µg/L 328%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
28 µg/L 47%
of the EPA limit 60 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Arsenic
8.6 µg/L 86%
of the EPA limit 10 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2019
1/1 SYR4
Selenium
5.05 µg/L 10%
of the EPA limit 50 µg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2018
1/1 SYR4
Combined Radium (-226 And -228)
0.8700 pCi/L 17%
of the EPA limit 5 pCi/L
Main supplier: EPCOR - AGUA FRIA · 127,718 people · 2017
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: EPCOR - AGUA FRIA · 127,718 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.

Water suppliers serving ZIP 85355

SupplierStatePopulation served
EPCOR - AGUA FRIA AZ 127,718

Frequently asked questions about ZIP 85355 tap water

Is the tap water in ZIP 85355 safe to drink?

EPA testing detected 14 contaminants across the water suppliers serving ZIP 85355. 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 85355?

1 public water supplier report EPA drinking-water monitoring for ZIP 85355. Each is listed above with its population served.

What contaminants are in ZIP 85355's water?

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