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

The USA national average is 151 mg/L. Puyallup (89 mg/L) is 62 mg/L softer than average.

Puyallup Water Hardness & Quality Report (2026)

Water Hardness

89mg/L

Moderately Hard

5.2 grains per gallon

Source

reservoir

pH Level

7.3

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

213.8 mg/L

Est. Daily Cost

$0.24

energy & soap waste

Source: See methodology section below · Updated 2026

89mg/L as CaCO₃Moderately Hard

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 Puyallup, your appliances are currently losing 12% efficiency due to mineral buildup.

Appliance	In Puyallup	Soft Water City	Efficiency Loss
Kettle	6.7 yrs	8.5 yrs	-21%
Washing Machine	10.3 yrs	12 yrs	-14%
Water Heater	12 yrs	15 yrs	-20%

Regional Water Comparison

How Puyallup compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Puyallup, Washington	89 mg/L	8.7 ppt	🟡 Moderately Hard	reservoir
South Hill, Washington	46 mg/L	2.3 ppt	🟢 Soft	reservoir
Lakeland South, Washington	≈ 0–60 mg/L	2.3 ppt	🟢 Soft	reservoir
Bonney Lake, Washington	≈ 120–179 mg/L	1.9 ppt	🟠 Hard	reservoir
Frederickson, Washington	≈ 0–60 mg/L	1.5 ppt	🟢 Soft	reservoir

National Benchmark

How Puyallup compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Puyallup	89 mg/L	🟡 Low
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Puyallup's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 213.8 mg/LpH: 7.3

The City of Puyallup Water Utility serves the Puyallup area in Pierce County, Washington, drawing from multiple groundwater sources. Primary sources include Salmon Springs and Maplewood Springs, supplemented by the city's well system. The utility tests over 80 regulated contaminants on a weekly basis in accordance with federal law, ensuring all sources meet Safe Drinking Water Act requirements before distribution.

The supply originates from the Puget Sound Lowland aquifer system underlying the greater Seattle-Tacoma region, comprising Quaternary glacial deposits — sand, gravel, and clay layers — overlying Tertiary sedimentary and volcanic rocks. Groundwater susceptibility ratings for city wells are classified as low, while Salmon Springs and Maplewood Springs carry high susceptibility ratings, indicating greater potential for surface contamination. Moderate mineralization reflects dissolution of calcium and magnesium from these glacial and bedrock formations, characteristic of the Pacific Northwest's geologically complex terrain.

At 89 mg/L (moderately soft), scale buildup effects are generally mild, though some deposits may appear on fixtures and appliances over time. Periodic descaling of dishwashers and hot water heaters is advisable if deposits accumulate; water softening may benefit households with sensitive skin, frequent laundry needs, or high-end appliances. The 2022 Water Quality Report notes an action level for lead of 1.3 mg/L with copper compliance also monitored. Distribution system loss was 11.2% in 2022, attributed to aging water main and service line infrastructure, and the utility maintains continuous monitoring of all groundwater sources.

Geology & Source: Puget Sound Lowland aquifer system; Quaternary glacial deposits — sand, gravel, clay — overlying Tertiary sedimentary and volcanic formations; calcium and magnesium dissolution from glaciated terrain yields moderately soft water

Other Washington Water Reports

South Hill

46 mg/L

🟢 Soft

Lakeland South

≈ 0–60 mg/L

🟢 Soft

Bonney Lake

≈ 120–179 mg/L

🟠 Hard

Frederickson

≈ 0–60 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 Puyallup's water safe to drink?

Yes. Puyallup's water meets all federal safety standards. The hardness is 89 mg/L (Moderately Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Puyallup?

Puyallup's water is moderately hard at 89 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Puyallup compare to the USA average?

The USA national average is 151 mg/L. Puyallup (89 mg/L) is 62 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 Puyallup 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.