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Tap water quality report

ZIP 53549 — Jefferson, WI

EPA monitoring across the 1 water supplier serving ZIP 53549 in Jefferson, WI detected 22 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
7,926
people served
22
contaminants found

What was found in ZIP 53549

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
1070 µg/L 11%
of the EPA limit 10000 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Fluoride
1058 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Nitrate-Nitrite
1045 µg/L 10%
of the EPA limit 10000 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Copper
327.8 µg/L 25%
of the EPA limit 1300 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Barium
151.95 µg/L 7.6%
of the EPA limit 2000 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Gross Alpha, Excl. Radon And U
21.51 pCi/L 143%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Lead
17.992 µg/L 120%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
TTHM
17.726 µg/L 22%
of the EPA limit 80 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Gross Beta Particle Activity
10.844 pCi/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2014
1/1 SYR4
Bromoform
6.265 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
5.94 pCi/L 119%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Dibromochloromethane
5.655 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Bromodichloromethane
3.11 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.925 µg/L 4.9%
of the EPA limit 60 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Di(2-ethylhexyl) Phthalate
2.2 µg/L 37%
of the EPA limit 6 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Chloroform
1.82 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.675 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Combined Uranium
1.66983 µg/L 5.6%
of the EPA limit 30 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2017
1/1 SYR4
Xylenes, Total
1.02 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Dichloroacetic Acid
0.7910 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Monobromoacetic Acid
0.6005 µg/L
No EPA limit set
Main supplier: JEFFERSON WATERWORKS · 7,926 people · 2019
1/1 SYR4
Lead
0.0035 mg/L 23%
of the EPA limit 0.0150 mg/L
Main supplier: JEFFERSON WATERWORKS · 7,926 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 53549

SupplierStatePopulation served
JEFFERSON WATERWORKS WI 7,926

Frequently asked questions about ZIP 53549 tap water

Is the tap water in ZIP 53549 safe to drink?

EPA testing detected 22 contaminants across the water suppliers serving ZIP 53549. 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 53549?

1 public water supplier report EPA drinking-water monitoring for ZIP 53549. Each is listed above with its population served.

What contaminants are in ZIP 53549's water?

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