Windsor Water Hardness & Quality Report (2026)
Water Hardness
2.4 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
74.6 mg/L
Est. Daily Cost
$0.11
energy & soap waste
Source: USGS Water Quality Portal · 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 Windsor, your appliances are currently losing 5% efficiency due to mineral buildup.
| Appliance | In Windsor | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.3 yrs | 8.5 yrs | -2% |
| Washing Machine | 12.1 yrs | 12 yrs | — |
| Water Heater | 14 yrs | 15 yrs | -7% |
Regional Water Comparison
How Windsor compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Windsor, Connecticut | 40.5 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
| South Windsor, Connecticut | 41 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
| East Hartford, Connecticut | 54 mg/L | 7.9 ppt | 🟢 Soft | reservoir |
| Windsor Locks, Connecticut | 41 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
| Bloomfield, Connecticut | 59.5 mg/L | 8.4 ppt | 🟢 Soft | reservoir |
National Benchmark
How Windsor compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Windsor | 40.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Windsor's Water Unique?
Local geology and source profile
Windsor, Connecticut, in Hartford County — a major north Connecticut Hartford suburban community (Windsor is a significant Hartford County town — Windsor holds the distinction of being the first permanent English settlement in Connecticut (settled in 1633 — one year before Hartford was settled in 1635; the Windsor settlement dispute is one of the most celebrated episodes in Connecticut colonial history); Windsor is adjacent to Bradley International Airport (one of the most important regional airports in New England, serving the Hartford–Springfield metro), home of the Windsor Town Green (one of the most historically significant colonial-era town greens in Connecticut), a diverse Hartford County community with a primarily working-class and middle-class suburban and airport service industry population, adjacent to Windsor Locks (home of Bradley Airport) in the north Hartford County corridor, and a community proud of its status as Connecticut's first English settlement — draws its municipal water supply via the Metropolitan District Commission. Water hardness in Windsor measures 40.5 mg/L — classified as very soft.
Windsor's very soft supply reflects the north Connecticut Hartford Basin watershed's calcareous-poor Triassic basalt and arkose geology. The MDC distributes Farmington River watershed supply (draining Triassic Hartford Basin arkose and basalt — calcareous-poor) to the north Hartford County Windsor zone, producing the very soft 40.5 mg/L.
With hardness at 40.5 mg/L, Windsor residents enjoy very soft water. Metropolitan District Commission consistently delivers water meeting all Connecticut DEEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Metropolitan District Commission (MDC Farmington River watershed) via the MDC — the Hartford County north Connecticut Hartford suburban Windsor corridor (Triassic calcareous-poor Hartford Basin basalt and arkose — the extremely calcareous-poor north Connecticut Triassic Hartford Basin watershed; MDC excellent treatment); very soft supply at 40.5 mg/L in Hartford County.