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Norwood Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

river

pH Level

8.5

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

681.5 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 Norwood, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn NorwoodSoft 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 Norwood compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Norwood, Ohio≈ 120–179 mg/L0 ppt🟠 Hardriver
Cincinnati, Ohio127 mg/L4.7 ppt🟠 Hardriver
Reading, Ohio≈ 120–179 mg/L8.1 ppt🟠 Hardriver
Newport, Kentucky≈ 120–179 mg/L6.1 ppt🟠 Hardriver
Finneytown, Ohio≈ 180+ mg/L8.5 ppt🔴 Very Hardriver

National Benchmark

How Norwood compares to the USA average

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

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What Makes Norwood's Water Unique?

Local geology and source profile

Source: RiverTDS: 681.5 mg/LpH: 8.5

Norwood City Public Water System (PWS) serves the city of Norwood in Hamilton County, Ohio, located just northeast of Cincinnati. The utility purchases treated surface water primarily from the Greater Cincinnati Water Works (GCWW), sourced from the Ohio River at the Richard Miller Treatment Plant and Charles M. Bolton Plant. This municipal supply covers Norwood's residential, commercial, and industrial needs via a distribution network, contactable at 513-458-4501 or 4645 Montgomery Rd., Norwood, OH 45212.

The Ohio River watershed spans 204,000 square miles, with Norwood's supply influenced by upstream geology in the Cincinnati Arch region. Ordovician shales and limestones underlay the basin alongside Silurian dolomites — including the Cincinnatian Group and Brassfield Formation — promoting dissolution of calcium and magnesium carbonates as water travels through karst terrain. This yields a hard supply characterized by significant mineral content from carbonate rock weathering, without reliance on local aquifers as Norwood uses purchased river water reflecting regional chemistry.

Hard water in Norwood leads to moderate scale buildup in pipes, water heaters, and dishwashers, reducing efficiency and lifespan. Laundry may appear dingy and soap scum forms on fixtures; boilers and appliances with heating elements are most affected. Regular vinegar descaling, low-flow aerators, and annual heater flushing help mitigate issues; a water softener is recommended for households to prevent spotting and extend equipment life. Treatment at GCWW plants involves conventional filtration, biological filtration, chlorine disinfection, and UV light; no detectable lead leaves treatment plants, and PFAS screening in recent Ohio River data shows low or none detected — check annual CCRs for pH (typically 7–8) and full contaminant summaries.

Geology & Source: Ohio River watershed — Ordovician/Silurian limestone and dolomite (Cincinnatian Group, Brassfield Formation); carbonate-rich karst terrain dissolves calcium and magnesium into river water, producing a hard supply

Other Ohio Water Reports

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Frequently Asked Questions

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