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Tap water quality report

ZIP 85140 — Queen Creek, AZ

EPA monitoring across the 2 water suppliers serving ZIP 85140 in Queen Creek, AZ detected 18 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
182,937
people served
18
contaminants found

What was found in ZIP 85140

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
18000 µg/L 1385%
of the EPA limit, in the worst sample — 1300 µg/L
 2/2 SYR4
Nitrate
16000 µg/L 160%
of the EPA limit, in the worst sample — 10000 µg/L
 2/2 SYR4
Nitrate-Nitrite
14000 µg/L 140%
of the EPA limit, in the worst sample — 10000 µg/L
 2/2 SYR4
Fluoride
1700 µg/L 43%
of the EPA limit 4000 µg/L
 2/2 SYR4
Lithium
185 µg/L
No EPA limit set
 2/2 UCMR-5
Barium
170 µg/L 8.5%
of the EPA limit 2000 µg/L
 2/2 SYR4
TTHM
34.7 µg/L 43%
of the EPA limit 80 µg/L
 2/2 SYR4
Lead
21 µg/L 140%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Chromium
11 µg/L 11%
of the EPA limit 100 µg/L
 2/2 SYR4
Total Haloacetic Acids (HAA5)
11 µg/L 18%
of the EPA limit 60 µg/L
 2/2 SYR4
Combined Uranium
10 µg/L 33%
of the EPA limit 30 µg/L
 2/2 SYR4
Arsenic
9.6 µg/L 96%
of the EPA limit 10 µg/L
 2/2 SYR4
Selenium
8.1 µg/L 16%
of the EPA limit 50 µg/L
 1/2 SYR4
Gross Alpha, Excl. Radon And U
6.7 pCi/L 45%
of the EPA limit 15 pCi/L
 2/2 SYR4
Combined Radium (-226 And -228)
5.1 pCi/L 102%
of the EPA limit, in the worst sample — 5 pCi/L
 2/2 SYR4
Di(2-ethylhexyl) Phthalate
0.7500 µg/L 13%
of the EPA limit 6 µg/L
 1/2 SYR4
1,2-DIBROMO-3-CHLOROPROPANE
0.0120 µg/L 6%
of the EPA limit 0.2000 µg/L
 1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 85140

SupplierStatePopulation served
QUEEN CREEK TOWN OF AZ 95,502
EPCOR - SAN TAN AZ 87,435

Frequently asked questions about ZIP 85140 tap water

Is the tap water in ZIP 85140 safe to drink?

EPA testing detected 18 contaminants across the water suppliers serving ZIP 85140. 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 85140?

2 public water suppliers report EPA drinking-water monitoring for ZIP 85140. Each is listed above with its population served.

What contaminants are in ZIP 85140's water?

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