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Water Quality Report

Cross Plains, WI

Dane County · 4,100 residents · 1 water system

18

Contaminants detected

4

PFAS compounds

200

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Cross Plains drinking water comes from groundwater wells. Based on the most recent monitoring data, 18 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 14 others. PFAS compounds have been detected at trace levels in Cross Plains water. Water hardness is 200 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Cross Plains water

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

Lead0.0048 / 0.015 mg/L
32% of EPA limit
Nitrate5.5 / 10 mg/L
55% of EPA limit
Arsenic0.0011 / 0.01 mg/L
11% of EPA limit
Copper100 / 1300 ug/L
8% of EPA limit
Radium0.284 / 5 pCi/L
6% of EPA limit
Uranium0.485 / 30 ug/L
2% of EPA limit
Gross Alpha Radiation1.4 / 15 pCi/L
10% of EPA limit
7% of EPA limit
4% of EPA limit
Atrazine0.02 / 3 ug/L
1% of EPA limit
Xylenes0.5 / 10000 ug/L
0% of EPA limit
Fluoride0.81 / 4 mg/L
20% of EPA limit
Gross Beta1.1 / 50 pCi/L
2% of EPA limit
Ethylbenzene0.11 / 700 ug/L
0% of EPA limit
Di(2-ethylhexyl) adipate0.48 / 400 ug/L
0% of EPA limit
Di(2-ethylhexyl) phthalate0.54 / 6 ug/L
9% of EPA limit
Chromium (total)0.002 / 0.1 mg/L
2% of EPA limit
Barium0.0386 / 2 mg/L
2% of EPA limit
PFAS (4 compounds detected)
Microplastics (not routinely tested)

Other cities in Dane County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Cross Plains, WI tap water safe to drink?
Cross Plains tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 18 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, 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 Cross Plains water?
Monitoring has detected 18 contaminants in Cross Plains's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Atrazine, Xylenes, Fluoride, Gross Beta, Ethylbenzene, Di(2-ethylhexyl) adipate, Di(2-ethylhexyl) phthalate, Chromium (total), Barium. Additionally, 4 PFAS compounds have been detected at trace levels. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Cross Plains water have PFAS?
Yes. 4 PFAS compounds have been detected in Cross Plains's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Cross Plains water hard?
Yes. Cross Plains water has a hardness of 200 mg/L (very 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 Cross Plains get its drinking water?
Cross Plains'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. Cross Plains is served by one water system: CROSS PLAINS WATERWORKS.

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