Enfield Water Hardness & Quality Report (2026)
Water Hardness
5.5 grains per gallon
Source
groundwater
pH Level
7.6
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
79 mg/L
Est. Daily Cost
$0.25
energy & soap waste
Source: See methodology section below · Updated 2026
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 Enfield, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Enfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.5 yrs | 8.5 yrs | -24% |
| Washing Machine | 10.1 yrs | 12 yrs | -16% |
| Water Heater | 11.8 yrs | 15 yrs | -21% |
Regional Water Comparison
How Enfield compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Enfield, Connecticut | 94 mg/L | 73.5 ppt | 🟡 Moderately Hard | groundwater |
| Windsor Locks, Connecticut | ≈ 120–179 mg/L | 6.8 ppt | 🟠 Hard | reservoir |
| Longmeadow, Massachusetts | ≈ 0–60 mg/L | 0 ppt | 🟢 Soft | reservoir |
| Agawam, Massachusetts | 61 mg/L | 0 ppt | 🟡 Moderately Hard | reservoir |
| East Longmeadow, Massachusetts | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | reservoir |
National Benchmark
How Enfield compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Enfield | 94 mg/L | 🟡 Low |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Enfield's Water Unique?
Local geology and source profile
Hazardville Water Company (HWC) serves the Hazardville System, covering Enfield, Somersville, and East Windsor in Hartford County, Connecticut (PWS ID: CT0490021). The utility draws groundwater from wells in the local aquifer system within the Connecticut River Valley. Water is treated with chlorination for disinfection and food-grade phosphate sequesterants to manage mineral effects. The company maintains low turbidity levels throughout the distribution system to ensure effective disinfection; no specific treatment plant names are detailed, but the supply serves communities across the Hartford County service area.
The watershed aligns with the Connecticut River Valley, where groundwater interacts with glacial and bedrock aquifers in the Hartford Basin. Triassic sedimentary rocks — including New Haven Arkose and Meriden Group formations of arkose sandstones and shales interspersed with basalt flows — form the basin's geology. Glacial deposits overlay these formations, introducing limestone fragments in glacial till that dissolve calcium and magnesium, contributing to the moderately mineralised, hard character of the supply typical of New England valley aquifers.
At moderately hard levels, scale buildup affects water heaters, dishwashers, laundry machines, and fixtures, reducing efficiency and lifespan. White deposits on dishes and plumbing are common. Regular maintenance including vinegar descaling, low-flow aerators, and flushing heaters helps; a water softener is recommended for households noticing significant scaling or soap inefficiency. The 2022 CCR notes one site exceeding the EPA copper action level (1.3 ppm) in Rye Hill, Somers, and one lead exceedance (15 ppb) in Enfield/Somersville out of 35 sites; overall compliance is maintained via corrosion control.
Geology & Source: Connecticut River Valley Lowland — glacial drift over Hartford Basin Triassic New Haven Arkose and Meriden Group sandstones and shales; limestone fragments in glacial till dissolve calcium and magnesium, producing moderately hard water
Other Connecticut Water Reports
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Frequently Asked Questions
Is Enfield's water safe to drink?
Do I need a water softener in Enfield?
How does Enfield compare to the USA average?
Data Sources & Methodology
Water quality data for Enfield is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
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.
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.
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.
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.
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.
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.