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

The USA national average is 151 mg/L. Keizer (≈ 0–59 mg/L) is 121 mg/L softer than average.

Keizer Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

Source

groundwater

pH Level

7.1

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

198.1 mg/L

Est. Daily Cost

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · 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 Keizer, your appliances are currently losing 4% efficiency due to mineral buildup.

Appliance	In Keizer	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Keizer compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Keizer, Oregon	≈ 0–59 mg/L	10.8 ppt	🟢 Soft	groundwater
Hayesville, Oregon	≈ 180+ mg/L	1.4 ppt	🔴 Very Hard	reservoir
Salem, Oregon	≈ 0–60 mg/L	0 ppt	🟢 Soft	reservoir
Four Corners, Oregon	≈ 0–60 mg/L	2.7 ppt	🟢 Soft	reservoir
Woodburn, Oregon	30.5 mg/L	0 ppt	🟢 Soft	groundwater

National Benchmark

How Keizer compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Keizer	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Keizer's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 198.1 mg/LpH: 7.1

KEIZER, CITY OF serves 38,585 people across the city of Keizer in Marion County, Oregon. The drinking water source is the Troutdale Aquifer, a groundwater system within the Willamette Valley. The City of Keizer manages and maintains the supply, with no specific treatment plant names detailed in available reports. Annual Drinking Water Quality Reports (Consumer Confidence Reports) are mailed to households to ensure transparency about supply safety and treatment practices.

Keizer's water comes from the Troutdale Aquifer within the Willamette Valley watershed, influenced by the Cascade Range. The geology features Quaternary sand and gravel deposits of the Troutdale Formation, overlying Tertiary volcaniclastic sediments derived from the Cascade Range. This soft water character arises from limited dissolution of hardness-causing minerals in the unconsolidated alluvial materials, yielding moderately mineralised groundwater typical of Pacific Northwest aquifers with low calcium and magnesium content.

With soft water, scale buildup is minimal, reducing risks to appliances such as water heaters, dishwashers, and washing machines. Soap lathers easily, and skin dryness associated with hard water is not an issue. No water softener is needed or recommended; routine maintenance suffices, though monitoring for any local variations is advised. The utility earns a Quality Score of 80/100 (Good grade) per TapWaterData, with 2 contaminants above EPA health-based guidelines (MCLGs) but no Maximum Contaminant Level violations reported; treatment involves standard groundwater processes managed by the city.

Geology & Source: Willamette Valley Troutdale Aquifer — Quaternary sand, gravel, and silt over Tertiary Cascade Range volcaniclastic sediments; minimal limestone or dolomite contact yields characteristically soft Pacific Northwest water

Other Oregon Water Reports

Hayesville

≈ 180+ mg/L

🔴 Very Hard

Salem

≈ 0–60 mg/L

🟢 Soft

Four Corners

≈ 0–60 mg/L

🟢 Soft

Woodburn

30.5 mg/L

🟢 Soft

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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 Keizer's water safe to drink?

Yes. Keizer's water meets all federal safety standards. The hardness is ≈ 0–59 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Keizer?

Keizer's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Keizer compare to the USA average?

The USA national average is 151 mg/L. Keizer (≈ 0–59 mg/L) is 121 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 Keizer 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.