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

The USA national average is 151 mg/L. Claremont (70.5 mg/L) is 80 mg/L softer than average.

Claremont Water Hardness & Quality Report (2026)

Water Hardness

70.5mg/L

Moderately Hard

4.1 grains per gallon

Source

reservoir

pH Level

7.9

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

173.4 mg/L

Est. Daily Cost

$0.19

energy & soap waste

Source: See methodology section below · Updated 2026

70.5mg/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 Claremont, your appliances are currently losing 9% efficiency due to mineral buildup.

Appliance	In Claremont	Soft Water City	Efficiency Loss
Kettle	7.7 yrs	8.5 yrs	-9%
Washing Machine	10.9 yrs	12 yrs	-9%
Water Heater	13.7 yrs	15 yrs	-9%

Regional Water Comparison

How Claremont compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Claremont, New Hampshire	70.5 mg/L	0 ppt	🟡 Moderately Hard	reservoir
Lebanon, New Hampshire	≈ 0–60 mg/L	0 ppt	🟢 Soft	reservoir
Keene, New Hampshire	≈ 0–60 mg/L	0 ppt	🟢 Soft	reservoir
Rutland, Vermont	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
East Concord, New Hampshire	≈ 0–60 mg/L	4.6 ppt	🟢 Soft	reservoir

National Benchmark

How Claremont compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Claremont	70.5 mg/L	🟡 Low
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Claremont's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 173.4 mg/LpH: 7.9

The City of Claremont Water Utility supplies Claremont, New Hampshire, with drinking water drawn from the Sugar River. This vital source, a tributary of the Connecticut River, flows through Sullivan County and serves as the backbone of the municipal water system. The utility manages treatment facilities to ensure the water meets federal standards before reaching residents' taps. The Sugar River watershed itself winds through west-central New Hampshire, interacting with the underlying geology that shapes the water's mineral makeup.

The region's bedrock is primarily composed of metamorphic rocks, including schist and gneiss, characteristic of the New England uplands. These formations, dating from the Precambrian to early Paleozoic eras, influence the water's chemical profile as it travels through the Sugar River watershed. The landscape's moderate mineral content, dictated by these ancient rocks, contributes to the water's overall composition and quality.

While Claremont's water meets all federal drinking water standards, including lead levels well below the EPA action limit, residents might notice the impact of the water's mineral content on their appliances. Though specific hardness levels are best confirmed via the utility's Consumer Confidence Report, mineral buildup can affect the lifespan of water heaters and dishwashers. For those concerned about scale, simple descaling methods or consulting the City of Claremont Water Utility about potential treatment options for household use are recommended steps.

Geology & Source: Sugar River; metamorphic bedrock (schist, gneiss) typical of New England uplands; moderate mineral content

Other New Hampshire Water Reports

Lebanon

≈ 0–60 mg/L

🟢 Soft

Keene

≈ 0–60 mg/L

🟢 Soft

Rutland

≈ 120–179 mg/L

🟠 Hard

East Concord

≈ 0–60 mg/L

🟢 Soft

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 Claremont's water safe to drink?

Yes. Claremont's water meets all federal safety standards. The hardness is 70.5 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 Claremont?

Claremont's water is moderately hard at 70.5 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Claremont compare to the USA average?

The USA national average is 151 mg/L. Claremont (70.5 mg/L) is 80 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 Claremont 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.