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Tap water quality report

ZIP 54303 — Green Bay, WI

EPA monitoring across the 2 water suppliers serving ZIP 54303 in Green Bay, 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.

2
water suppliers
128,502
people served
24
contaminants found

What was found in ZIP 54303

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
2900 µg/L 73%
of the EPA limit 4000 µg/L
 2/2 SYR4
Nitrate
2300 µg/L 23%
of the EPA limit 10000 µg/L
 2/2 SYR4
Copper
1200 µg/L 92%
of the EPA limit 1300 µg/L
 2/2 SYR4
Lead
490 µg/L 3267%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Nitrate-Nitrite
350 µg/L 3.5%
of the EPA limit 10000 µg/L
 2/2 SYR4
Barium
170 µg/L 8.5%
of the EPA limit 2000 µg/L
 2/2 SYR4
TTHM
82.3 µg/L 103%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Chloroform
57 µg/L
No EPA limit set
 2/2 SYR4
Total Haloacetic Acids (HAA5)
37.22 µg/L 62%
of the EPA limit 60 µg/L
 2/2 SYR4
Gross Alpha, Excl. Radon And U
35.2 pCi/L 235%
of the EPA limit, in the worst sample — 15 pCi/L
 2/2 SYR4
Arsenic
20 µg/L 200%
of the EPA limit, in the worst sample — 10 µg/L
 2/2 SYR4
Bromodichloromethane
19 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
19 µg/L
No EPA limit set
 2/2 SYR4
Trichloroacetic Acid
18 µg/L
No EPA limit set
 2/2 SYR4
Bromate
12 µg/L 120%
of the EPA limit, in the worst sample — 10 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
10.87 pCi/L 217%
of the EPA limit, in the worst sample — 5 pCi/L
 2/2 SYR4
Dibromochloromethane
8.5 µg/L
No EPA limit set
 2/2 SYR4
Combined Uranium
4.8 µg/L 16%
of the EPA limit 30 µg/L
 2/2 SYR4
P-Dichlorobenzene
2.2 µg/L 2.9%
of the EPA limit 75 µg/L
 1/2 SYR4
Dibromoacetic Acid
2 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
1.5 µg/L
No EPA limit set
 1/2 SYR4
Monobromoacetic Acid
1.3 µg/L
No EPA limit set
 2/2 SYR4
Thallium, Total
0.5500 µg/L 28%
of the EPA limit 2 µg/L
 1/2 SYR4
Lead
0.0025 mg/L 17%
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 54303

SupplierStatePopulation served
GREEN BAY WATERWORKS WI 107,369
HOWARD WATERWORKS WI 21,133

Frequently asked questions about ZIP 54303 tap water

Is the tap water in ZIP 54303 safe to drink?

EPA testing detected 24 contaminants across the water suppliers serving ZIP 54303. 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 54303?

2 public water suppliers report EPA drinking-water monitoring for ZIP 54303. Each is listed above with its population served.

What contaminants are in ZIP 54303's water?

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