← Waukesha, WI

Tap water quality report

ZIP 53189 — Waukesha, WI

EPA monitoring across the 1 water supplier serving ZIP 53189 in Waukesha, WI detected 24 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

1
water supplier
70,718
people served
24
contaminants found

What was found in ZIP 53189

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
Fluoride
970 µg/L 24%
of the EPA limit 4000 µg/L
1/1 SYR4
Copper
320 µg/L 25%
of the EPA limit 1300 µg/L
1/1 SYR4
Barium
180 µg/L 9%
of the EPA limit 2000 µg/L
1/1 SYR4
Nitrate
170 µg/L 1.7%
of the EPA limit 10000 µg/L
1/1 SYR4
Nitrate-Nitrite
100 µg/L 1%
of the EPA limit 10000 µg/L
1/1 SYR4
Gross Alpha, Excl. Radon And U
48.2 pCi/L 321%
of the EPA limit, in the worst sample — 15 pCi/L
1/1 SYR4
Cyanide
40 µg/L 20%
of the EPA limit 200 µg/L
1/1 SYR4
Gross Beta Particle Activity
28.8 pCi/L
No EPA limit set
1/1 SYR4
TTHM
22.18 µg/L 28%
of the EPA limit 80 µg/L
1/1 SYR4
Combined Radium (-226 And -228)
22 pCi/L 440%
of the EPA limit, in the worst sample — 5 pCi/L
1/1 SYR4
Lead
8.1 µg/L 54%
of the EPA limit 15 µg/L
1/1 SYR4
Bromodichloromethane
7.15 µg/L
No EPA limit set
1/1 SYR4
Chloroform
6.96 µg/L
No EPA limit set
1/1 SYR4
Dibromochloromethane
6.2 µg/L
No EPA limit set
1/1 SYR4
Total Haloacetic Acids (HAA5)
4.19 µg/L 7%
of the EPA limit 60 µg/L
1/1 SYR4
Arsenic
2.8 µg/L 28%
of the EPA limit 10 µg/L
1/1 SYR4
Dichloroacetic Acid
2.6 µg/L
No EPA limit set
1/1 SYR4
Bromoform
1.9 µg/L
No EPA limit set
1/1 SYR4
Dibromoacetic Acid
1.7 µg/L
No EPA limit set
1/1 SYR4
Combined Uranium
1.64 µg/L 5.5%
of the EPA limit 30 µg/L
1/1 SYR4
Trichloroacetic Acid
0.7500 µg/L
No EPA limit set
1/1 SYR4
Monobromoacetic Acid
0.4900 µg/L
No EPA limit set
1/1 SYR4
Antimony, Total
0.4200 µg/L 7%
of the EPA limit 6 µg/L
1/1 SYR4
Lead
0.00056 mg/L 3.7%
of the EPA limit 0.0150 mg/L
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 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 53189

SupplierStatePopulation served
WAUKESHA WATER UTILITY 70,718

Frequently asked questions about ZIP 53189 tap water

Is the tap water in ZIP 53189 safe to drink?

EPA testing detected 24 contaminants across the water suppliers serving ZIP 53189. 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 53189?

1 public water supplier report EPA drinking-water monitoring for ZIP 53189. Each is listed above with its population served.

What contaminants are in ZIP 53189's water?

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