How does Eden Prairie's water compare to the national average?

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

Eden Prairie Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

8.5

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

585.2 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 Eden Prairie, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Eden Prairie	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 Eden Prairie compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Eden Prairie, Minnesota	≈ 120–179 mg/L	23.4 ppt	🟠 Hard	groundwater
Chanhassen, Minnesota	≈ 180+ mg/L	0 ppt	🔴 Very Hard	groundwater
Minnetonka, Minnesota	≈ 180+ mg/L	58.1 ppt	🔴 Very Hard	groundwater
Hopkins, Minnesota	≈ 180+ mg/L	12.8 ppt	🔴 Very Hard	groundwater
Shakopee, Minnesota	≈ 180+ mg/L	562.2 ppt	🔴 Very Hard	groundwater

National Benchmark

How Eden Prairie compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Eden Prairie	≈ 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 Eden Prairie's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 585.2 mg/LpH: 8.5

The City of Eden Prairie Water Utility serves approximately 65,000 residents across 35 square miles in Hennepin County, Minnesota. Water is sourced exclusively from groundwater wells tapping the Prairie du Chien and Jordan aquifers. The Split-Treatment Water Plant, operational since 1974 and expanded to 28 million gallons per day capacity, handles treatment through fifteen wells each capable of 1–2 MGD pumping, distributing water via over 265 miles of mains.

The supply originates within the Prairie du Chien-Jordan aquifer system, overlying Paleozoic bedrock. The Prairie du Chien Group consists of Ordovician-age dolomites and sandstones, while the Jordan Sandstone Formation is Cambrian in age. Both formations dissolve over time to release calcium and magnesium, resulting in a hard supply prone to scaling — karst features of the aquifer enhance mineral dissolution before treatment adjusts water chemistry.

Hard water causes scale buildup in water heaters, dishwashers, and laundry appliances, reducing efficiency and lifespan; fixtures develop spots and films while soaps lather poorly. Deliming heaters every 1–2 years and using high-efficiency detergents helps; a water softener is recommended to prevent mineral deposits and extend appliance life. Water quality meets EPA legal limits, though haloacetic acids (4.3–11.1 ppb), total trihalomethanes (27–32 ppb), barium (up to 1.03 ppm), and fluoride (up to 1.2 ppm) exceed some health goals; treatment includes lime softening, ferric chloride coagulation, dual media filtration, and chloramination disinfection.

Geology & Source: Prairie du Chien Group (Ordovician dolomites/sandstones) and Jordan Sandstone (Cambrian) aquifers, ~400 ft deep — prolonged groundwater contact with limestone and dolomite bedrock yields hard supply

Other Minnesota Water Reports

Chanhassen

≈ 180+ mg/L

🔴 Very Hard

Minnetonka

≈ 180+ mg/L

🔴 Very Hard

Hopkins

≈ 180+ mg/L

🔴 Very Hard

Shakopee

≈ 180+ mg/L

🔴 Very Hard

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Frequently Asked Questions

Is Eden Prairie's water safe to drink?

Yes. Eden Prairie'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 Eden Prairie?

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

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