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Salem Water Hardness & Quality Report (2026)

Water Hardness

162mg/L
Hard

9.5 grains per gallon

Source

groundwater

pH Level

8

neutral = 7.0

Lead

0.004 mg/L

βœ“ Below action level

TDS

436.2 mg/L

Est. Daily Cost

$0.43

energy & soap waste

Source: USGS Water Quality Portal Β· Updated 2026

162mg/L as CaCO₃Hard

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Salem, your appliances are currently losing 22% efficiency due to mineral buildup.

ApplianceIn SalemSoft Water CityEfficiency Loss
Kettle
4.3 yrs
8.5 yrs-49%
Washing Machine
7.6 yrs
12 yrs-37%
Water Heater
9.1 yrs
15 yrs-39%

Regional Water Comparison

How Salem compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Salem, Wisconsin162 mg/L4.5 ppt🟠 Hardgroundwater
Antioch, Illinois249.5 mg/L8.7 pptπŸ”΄ Very Hardriver
Lindenhurst, Illinois146 mg/L5.2 ppt🟠 Hardriver
Fox Lake, Illinois194.5 mg/L6.8 pptπŸ”΄ Very Hardriver
Pleasant Prairie, Wisconsin206.5 mg/L5.5 pptπŸ”΄ Very Hardgroundwater

National Benchmark

How Salem compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Salem162 mg/L🟠 Moderate
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟒 None

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What Makes Salem's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 436.2 mg/LpH: 8

Salem, Wisconsin, in Kenosha County β€” a Kenosha County town adjacent to Paddock Lake and Bristol in the southeast Wisconsin lake district β€” receives its water from the Town of Salem Water system, drawing from deep Silurian dolomite wells through the southeast Wisconsin distribution.

The hard 162 mg/L hardness and TDS of 436.2 mg/L reflect the Kenosha County Silurian dolomite supply's hard dolomitic character β€” the Silurian Niagaran Dolomite and Ordovician Prairie du Chien Dolomite are among the most calcareous and dolomitic formations in Wisconsin, and the elevated TDS reflects concentrated groundwater mineral content from deep dolomite dissolution in southeast Wisconsin (compare Paddock Lake WI: 158/424 in Kenosha County comparable; Bristol WI: 166/448 in Kenosha County comparable; Salem consistent hard from the same Kenosha County Silurian dolomitic groundwater supply). The Kenosha County aquifer β€” Silurian Niagaran Dolomite (highly dolomitic β€” primary hardness contributor), Ordovician Prairie du Chien Dolomite (dolomitic β€” secondary contributor), and Quaternary glacial till (calcareous β€” TDS contributor).

At 162 mg/L with TDS 436, Salem's water is hard β€” scale builds notably in appliances. Quarterly descaling is appropriate. The PFAS level of 4.5 ppt is moderate and well-managed. Review the Salem town water utility's annual water quality report.

Geology & Source: Salem in Kenosha County draws from the Salem Water on the Kenosha County aquifer (Kenosha County, southeast Wisconsin) β€” the Kenosha County aquifer is developed in Silurian Niagaran Dolomite (highly dolomitic) and Ordovician Prairie du Chien Dolomite (dolomitic) β€” Wisconsin Kenosha County Silurian dolomitic groundwater produces hard water at 162 mg/L with TDS 436.2 mg/L.

Other Wisconsin Water Reports

Frequently Asked Questions

Is Salem's water safe to drink?
Yes. Salem's water meets all federal safety standards. The hardness is 162 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Salem?
At 162 mg/L (Hard), Salem's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 22%.
How does Salem compare to the USA average?
The USA national average is 150 mg/L. Salem at 162 mg/L is 12 mg/L above the national average. The softest major city is Badger at just 8.5 mg/L.