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Crystal Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

river

pH Level

7.6

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

172 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 Crystal, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn CrystalSoft Water CityEfficiency 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 Crystal compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Crystal, Minnesota≈ 120–179 mg/L43.4 ppt🟠 Hardriver
Robbinsdale, Minnesota90 mg/L48.4 ppt🟡 Moderately Hardgroundwater
Golden Valley, Minnesota≈ 120–179 mg/L44.5 ppt🟠 Hardriver
New Hope, Minnesota76.8 mg/L40.9 ppt🟡 Moderately Hardriver
Brooklyn Center, Minnesota≈ 180+ mg/L51 ppt🔴 Very Hardgroundwater

National Benchmark

How Crystal compares to the USA average

BenchmarkHardnessAppliance Risk
Crystal≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Crystal's Water Unique?

Local geology and source profile

Source: RiverTDS: 172 mg/LpH: 7.6

The City of Crystal, Minnesota is served by the Crystal Water Division, which maintains the municipal water, sanitary sewer, and storm drainage infrastructure. Crystal receives water from the Minneapolis-St. Paul metropolitan system, drawing from both surface sources — the Mississippi River — and groundwater aquifers across the Upper Midwest. The utility coordinates with the Minnesota Department of Health for water quality monitoring and compliance, distributing treated water to residents throughout the city and working to meet all federal and state drinking water standards.

Crystal's water supply originates from the Upper Midwest's hydrogeological system, characterized by Pleistocene glacial deposits overlying Paleozoic sedimentary bedrock. The region includes significant Ordovician limestone formations and the St. Peter Sandstone aquifer, which contribute dissolved minerals — particularly calcium and magnesium carbonates — to groundwater and the Mississippi River surface supply. This geological setting is typical of the Twin Cities region and produces the hard water character delivered throughout Crystal's distribution system.

At hard levels, Crystal residents can expect noticeable scale buildup on fixtures, reduced soap lather, and progressive mineral impacts on water heaters, dishwashers, and washing machines. Many households benefit from point-of-use softening or whole-home water softeners to reduce maintenance costs and extend appliance lifespan. Crystal's 2025 Drinking Water Report, covering January through December 2025 and prepared in accordance with EPA regulations, is available through the city's website at crystalmn.gov. Residents with questions may contact Jose Galeano, Superintendent, at 763-531-1166 or jose.galeano@crystalmn.gov.

Geology & Source: Twin Cities; Pleistocene glacial deposits over Paleozoic Ordovician limestone and St. Peter Sandstone; limestone dissolves calcium and carbonate into Mississippi River and groundwater supplies; hard water characteristic of Minnesota region

Other Minnesota Water Reports

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Frequently Asked Questions

Is Crystal's water safe to drink?
Yes. Crystal'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 Crystal?
At ≈ 120–179 mg/L (Hard), Crystal'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 Crystal compare to the USA average?
The USA national average is 151 mg/L. Crystal (≈ 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 Crystal 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

pH

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.