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Water Quality Report

La Valle, WI

Sawyer County · 365 residents · 1 water system

19

Contaminants detected

0

PFAS compounds

142

Hardness (mg/L)

0

Above legal limits

3

Above health guidelines

La Valle drinking water comes from groundwater wells. Based on the most recent monitoring data, 19 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radon, and 15 others. PFAS testing has been conducted with no detections. Water hardness is 142 mg/L (hard), which is within a typical range for the region.

Contaminants detected in La Valle water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.0018 / 0.015 mg/L
12% of EPA limit
Nitrate1.1 / 10 mg/L
11% of EPA limit
Copper1180 / 1300 ug/L
91% of EPA limit
Radon159 pCi/L
UnregulatedRadionuclide
Radium1.5 / 5 pCi/L
31% of EPA limit
Uranium0.12 / 30 ug/L
0% of EPA limit
Gross Alpha Radiation0.845 / 15 pCi/L
6% of EPA limit
6% of EPA limit
15% of EPA limit
Xylenes4.7 / 10000 ug/L
0% of EPA limit
Benzene2.2 / 5 ug/L
44% of EPA limit
Ethylbenzene2.6 / 700 ug/L
0% of EPA limit
Toluene2.7 / 1000 ug/L
0% of EPA limit
Styrene2.9 / 100 ug/L
3% of EPA limit
1,2-Dichloroethane0.15 / 5 ug/L
3% of EPA limit
Chromium (total)0.0025 / 0.1 mg/L
3% of EPA limit
Barium0.0096 / 2 mg/L
0% of EPA limit
Nitrite0.18 / 1 mg/L
18% of EPA limit
Fluoride0.9 / 4 mg/L
23% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)

Other cities in Sawyer County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is La Valle, WI tap water safe to drink?
La Valle tap water meets EPA legal standards (Maximum Contaminant Levels). However, 3 contaminants are present above independent health guidelines, which are often stricter than legal limits. 19 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radon, Radium. View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in La Valle water?
Monitoring has detected 19 contaminants in La Valle's water supply: Lead, Nitrate, Copper, Radon, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Xylenes, Benzene, Ethylbenzene, Toluene, Styrene, 1,2-Dichloroethane, Chromium (total), Barium, Nitrite, Fluoride. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does La Valle water have PFAS?
La Valle's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Is La Valle water hard?
Yes. La Valle water has a hardness of 142 mg/L (hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does La Valle get its drinking water?
La Valle's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. La Valle is served by one water system: LA VALLE WATERWORKS.

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