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

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

Aloha Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.4

neutral = 7.0

Lead

0.006 mg/L

✓ Below action level

TDS

146 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 Aloha, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Aloha	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 Aloha compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Aloha, Oregon	≈ 120–179 mg/L	2.1 ppt	🟠 Hard	groundwater
Oak Hills, Oregon	≈ 0–60 mg/L	1.5 ppt	🟢 Soft	reservoir
Bethany, Oregon	≈ 0–60 mg/L	2.2 ppt	🟢 Soft	reservoir
Beaverton, Oregon	≈ 0–60 mg/L	0 ppt	🟢 Soft	reservoir
Cedar Mill, Oregon	≈ 0–60 mg/L	1.9 ppt	🟢 Soft	reservoir

National Benchmark

How Aloha compares to the USA average

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

Local geology and source profile

Source: GroundwaterTDS: 146 mg/LpH: 7.4

Aloha, Oregon is served by the Tualatin Valley Water District (TVWD), which draws from multiple sources: the Portland Water Bureau's Bull Run Watershed (surface reservoirs on the Western Cascade Range), the Joint Water Commission (JWC) drawing from the Tualatin River and Scoggins Creek Reservoir, and supplemental groundwater wells in the Tualatin Basin. Treatment occurs at the JWC plant, with blending at distribution points to balance demand across Washington County communities including Beaverton and Tigard.

The Bull Run Watershed originates in forested granitic and volcanic Cascade slopes, contributing very soft, low-mineral water due to minimal contact with limestones. JWC surface sources tap the Tualatin River sub-basin, influenced by Cascade volcanics and Willamette Valley sediments. Groundwater comes from unconfined aquifers in Quaternary alluvium overlying Columbia River Basalt Group flows of Miocene age, which weather to release modest calcium and magnesium. The blended result is a generally soft to moderately mineralized supply shaped by limited carbonate rock exposure.

Aloha's blended supply may cause minor scale buildup in water heaters, dishwashers, and coffee makers over time, with subtle spotting on glassware and reduced soap efficiency. Regular vinegar descaling, low-flow aerators, and magnetic descalers help manage mineral deposits; a water softener is optional but worth considering for households noticing dry skin or film on fixtures. TVWD water maintains pH 7.5–8.5, is fully compliant with EPA lead and copper rules, and no PFAS detections above limits have been reported in recent Consumer Confidence Reports. Disinfection is via chloramination, with corrosion control through orthophosphate and fluoride addition.

Geology & Source: Bull Run Watershed volcanic and granitic Cascades headwaters yield very soft water; Tualatin Basin Quaternary alluvium and Columbia River Basalt (Miocene) add moderate calcium and magnesium — blended supply ranges soft to moderately mineralized

Other Oregon Water Reports

Oak Hills

≈ 0–60 mg/L

🟢 Soft

Bethany

≈ 0–60 mg/L

🟢 Soft

Beaverton

≈ 0–60 mg/L

🟢 Soft

Cedar Mill

≈ 0–60 mg/L

🟢 Soft

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

Frequently Asked Questions

Is Aloha's water safe to drink?

Yes. Aloha'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 Aloha?

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

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