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

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

Newton Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.8

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

305.9 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 Newton, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Newton	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 Newton compares to its nearest neighbours

City	Hardness	Risk	Source
▶ Newton, Iowa	≈ 120–179 mg/L	🟠 Hard	groundwater
Pella, Iowa	≈ 120–179 mg/L	🟠 Hard	groundwater
Marshalltown, Iowa	≈ 180+ mg/L	🔴 Very Hard	groundwater
Altoona, Iowa	≈ 120–179 mg/L	🟠 Hard	groundwater
Ankeny, Iowa	≈ 120–179 mg/L	🟠 Hard	river

National Benchmark

How Newton compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Newton	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

Bring Scarsdale-quality water to your Newton home

Shop water softeners on Amazon.com →

Shop Now

What Makes Newton's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 305.9 mg/LpH: 7.8

Newton Water Supply draws its water from groundwater sources within Jasper County, Iowa. Specifically, the supply taps into the Alluvial and Cambrian-Ordovician aquifers. The Alluvial aquifer consists of unconsolidated sands and gravels, while the deeper Cambrian-Ordovician aquifer draws from ancient sandstone and dolomite formations. Water is treated at the utility's facility to reduce hardness, iron, calcium, magnesium, and manganese before distribution to approximately 15,254 residents in Newton, Iowa (ZIP 50208).

The geology underlying Jasper County plays a significant role in the water's natural chemistry. The Alluvial aquifer's sands and gravels sit atop bedrock formations from the Paleozoic era, including the Jordan Sandstone and St. Lawrence Formation. These carbonate and mineral-rich layers, along with Pleistocene deposits and glacial till, contribute to naturally hard water due to the slow dissolution of calcium and magnesium-bearing rocks over geological time. This interior Iowa geology, influenced by karst processes, results in a mineralized supply.

Homeowners may notice that even after treatment, some residual hardness can affect appliances. Scale buildup can accelerate in water heaters, dishwashers, and washing machines, potentially reducing their efficiency and lifespan. To combat this, regular descaling of fixtures and considering a whole-house water softener are recommended. The utility actively softens the water, but a softener can provide an extra layer of protection against mineral deposits, especially given the inherent hardness from the local geology. The 2025 Consumer Confidence Report confirms the water meets EPA standards, with pH regulated post-treatment. Routine monitoring for contaminants like lead and copper occurs, and while some contaminants exceed health guidelines, regulated levels are met.

Geology & Source: Alluvial and Cambrian-Ordovician aquifers; sandstone and dolomite formations impart moderate to hard water

Other Iowa Water Reports

Pella

≈ 120–179 mg/L

🟠 Hard

Marshalltown

≈ 180+ mg/L

🔴 Very Hard

Altoona

≈ 120–179 mg/L

🟠 Hard

Ankeny

≈ 120–179 mg/L

🟠 Hard

Report an Issue

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 Newton's water safe to drink?

Yes. Newton'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 Newton?

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

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