Mount Pleasant Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.8

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

338.5 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Mount Pleasant, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Mount Pleasant	Soft Water City	Efficiency Loss
Kettle	6.8 yrs	8.5 yrs	-20%
Washing Machine	9.6 yrs	12 yrs	-20%
Water Heater	12 yrs	15 yrs	-20%

Regional Water Comparison

How Mount Pleasant compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Mount Pleasant, Wisconsin	≈ 120–179 mg/L	3.9 ppt	🟠 Hard	groundwater
Racine, Wisconsin	≈ 180+ mg/L	0 ppt	🔴 Very Hard	reservoir
Kenosha, Wisconsin	≈ 120–179 mg/L	0 ppt	🟠 Hard	river
Caledonia, Wisconsin	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Pleasant Prairie, Wisconsin	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir

National Benchmark

How Mount Pleasant compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Mount Pleasant	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Mount Pleasant's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 338.5 mg/LpH: 7.8

Mount Pleasant, Wisconsin, receives its water supply from the Racine Water Utility, which draws from Lake Michigan and distributes treated surface water to communities across Racine County, including Caledonia, Mount Pleasant, Wind Point, and Sturtevant. The utility operates a treatment plant processing Lake Michigan water before distribution to approximately 27,000 residents in the Mount Pleasant service area. Treatment includes conventional filtration, disinfection, and compliance monitoring published in annual Drinking Water Quality Reports.

Southeastern Wisconsin is underlain by Silurian and Ordovician dolomite and limestone formations, with Cambrian sandstone aquifers beneath Pleistocene glacial till and outwash deposits. Lake Michigan itself reflects the carbonate-rich geology of its watershed, with dissolved calcium and magnesium contributing to the moderately hard character of Racine County water. Hardness in the county typically ranges from 10–40 grains per gallon, driven by this regional carbonate geology.

Hard water in Mount Pleasant causes scale buildup in water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Faucet aerators and coffee makers clog over time, and soap scum forms on fixtures and laundry. Regular deliming, scale-inhibiting filters, and flushing water heaters annually help manage deposits. A water softener is strongly recommended. The utility monitors for iron, hydrogen sulfide, lead, copper, and PFAS; annual water quality reports confirm EPA compliance.

Geology & Source: Lake Michigan surface water — SE Wisconsin underlain by Silurian/Ordovician dolomite and limestone over Cambrian sandstone; Pleistocene glacial till; carbonate watershed geology contributes moderate-to-hard mineral content typical of Racine County

Other Wisconsin Water Reports

Racine

≈ 180+ mg/L

🔴 Very Hard

Kenosha

≈ 120–179 mg/L

🟠 Hard

Caledonia

≈ 120–179 mg/L

🟠 Hard

Pleasant Prairie

≈ 120–179 mg/L

🟠 Hard

Report an Issue

Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Mount Pleasant's water safe to drink?

Yes. Mount Pleasant's water meets all federal safety standards. The hardness is ≈ 120–179 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 Mount Pleasant?

At ≈ 120–179 mg/L (Hard), Mount Pleasant'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 20%.

How does Mount Pleasant compare to the USA average?

The USA national average is 151 mg/L. Mount Pleasant (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Mount Pleasant is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.