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

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

Colchester Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.8

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

31.2 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 Colchester, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Colchester	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 Colchester compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Colchester, Vermont	≈ 120–179 mg/L	5.2 ppt	🟠 Hard	reservoir
Essex Junction, Vermont	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
South Burlington, Vermont	61.632 mg/L	0 ppt	🟡 Moderately Hard	reservoir
Burlington, Vermont	64 mg/L	0 ppt	🟡 Moderately Hard	reservoir
Plattsburgh, New York	≈ 0–60 mg/L	3.1 ppt	🟢 Soft	reservoir

National Benchmark

How Colchester compares to the USA average

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

Local geology and source profile

Source: ReservoirTDS: 31.2 mg/LpH: 7.8

Colchester Fire District No 2 (VT0005059) provides drinking water to parts of Colchester, Vermont, in Chittenden County. The utility operates a groundwater system drawing from local wells in the Champlain Valley area, as indicated by state records. No specific treatment plant names are detailed in available reports, but the system serves residential and fire protection needs in the community. The 2023 Consumer Confidence Report is accessible via cfd2vt.com, offering a snapshot of delivered water quality.

The water supply is shaped by the Champlain Valley watershed, encompassing groundwater recharge zones around Lake Champlain. Underlying geology features Paleozoic carbonate rocks — limestone, dolomite, and marble from Ordovician and Cambrian periods — which impart a moderately mineralised character through natural dissolution of calcium and magnesium. Fractured bedrock aquifers and glacial till overlays facilitate mineral pickup, resulting in water with noticeable dissolved solids from these formations without reliance on surface sources.

At moderately hard levels, scale buildup becomes noticeable on fixtures, reducing efficiency in water heaters, dishwashers, and washing machines. Soap lathering decreases, leading to scum in bathrooms and spots on glassware. Regular vinegar descaling of faucets and showerheads helps with maintenance; a water softener is recommended for households to extend appliance life and improve cleaning performance. The groundwater receives basic disinfection and complies with primary standards; no notable violations appear in available summaries. State health department labs handle private well testing for bacteria annually and comprehensive packages every five years.

Geology & Source: Champlain Valley, Vermont — Paleozoic carbonate rocks including limestone, dolomite, and marble from Ordovician and Cambrian periods; fractured bedrock aquifers and glacial till; calcium and magnesium dissolution yields moderate hardness

Other Vermont Water Reports

Essex Junction

≈ 120–179 mg/L

🟠 Hard

South Burlington

61.632 mg/L

🟡 Moderately Hard

Burlington

64 mg/L

🟡 Moderately Hard

Plattsburgh

≈ 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 Colchester's water safe to drink?

Yes. Colchester'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 Colchester?

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

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