How does Roseville's water compare to the national average?

The USA national average is 151 mg/L. Roseville (≈ 120–179 mg/L) is 1 mg/L softer than average.

Roseville Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

river

pH Level

8.5

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

758 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 Roseville, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Roseville	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 Roseville compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Roseville, Minnesota	≈ 120–179 mg/L	51.2 ppt	🟠 Hard	river
Little Canada, Minnesota	≈ 120–179 mg/L	5.5 ppt	🟠 Hard	groundwater
Shoreview, Minnesota	257 mg/L	39.9 ppt	🔴 Very Hard	groundwater
New Brighton, Minnesota	410.88 mg/L	51.2 ppt	🔴 Very Hard	groundwater
Saint Paul, Minnesota	≈ 60–120 mg/L	10 ppt	🟡 Moderately Hard	river

National Benchmark

How Roseville compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Roseville	≈ 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 Roseville's Water Unique?

Local geology and source profile

Source: RiverTDS: 758 mg/LpH: 8.5

Roseville, Minnesota is served by the City of Roseville Water Utility, which purchases treated water from St. Paul Regional Water Service and distributes it through more than 100 miles of municipal pipes to residential and commercial customers throughout the city. The utility is required by the EPA to publish an annual Consumer Confidence Report detailing all detected substances and water quality parameters, with testing conducted multiple times throughout the year by sampling from residents' homes across the service area.

The Twin Cities watershed supplying Roseville is underlain by Paleozoic-age carbonate and sandstone formations dominated by dolomite and limestone aquifers — remnants of ancient marine environments. These mineral-rich rock formations, particularly calcite and dolomite deposits, naturally dissolve into groundwater as it percolates through the aquifer system, leaching calcium and magnesium ions that create the hard water supply characteristic of the entire Twin Cities metropolitan area.

Roseville's hard water causes noticeable mineral buildup in pipes, appliances, and fixtures throughout the home. Water heaters, dishwashers, and washing machines are particularly affected by scale accumulation, which reduces efficiency and shortens equipment lifespan. Residents commonly experience dry skin and dull hair after bathing, and soap and detergent effectiveness is diminished. Many homeowners install water softeners to mitigate these effects and extend appliance longevity, though softening is not universally required.

Geology & Source: Twin Cities glaciated terrain; Paleozoic-age dolomite and limestone aquifers — calcite and dolomite dissolve calcium and magnesium into groundwater, producing hard water typical of the metropolitan area

Other Minnesota Water Reports

Little Canada

≈ 120–179 mg/L

🟠 Hard

Shoreview

257 mg/L

🔴 Very Hard

New Brighton

410.88 mg/L

🔴 Very Hard

Saint Paul

≈ 60–120 mg/L

🟡 Moderately Hard

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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 Roseville's water safe to drink?

Yes. Roseville'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 Roseville?

At ≈ 120–179 mg/L (Hard), Roseville'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 Roseville compare to the USA average?

The USA national average is 151 mg/L. Roseville (≈ 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 Roseville 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.