Farmington Water Hardness & Quality Report (2026)
Water Hardness
4.9 grains per gallon
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
205 mg/L
Est. Daily Cost
$0.23
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 Farmington, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Farmington | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 10.5 yrs | 12 yrs | -13% |
| Water Heater | 12.2 yrs | 15 yrs | -19% |
Regional Water Comparison
How Farmington compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Farmington, Connecticut | 84.5 mg/L | 10.6 ppt | 🟡 Moderately Hard | reservoir |
| Plainville, Connecticut | 41 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
| New Britain, Connecticut | 79.5 mg/L | 10.1 ppt | 🟡 Moderately Hard | reservoir |
| Avon, Connecticut | 31.5 mg/L | 6 ppt | 🟢 Soft | reservoir |
| West Hartford, Connecticut | 23 mg/L | 5.2 ppt | 🟢 Soft | reservoir |
National Benchmark
How Farmington compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Farmington | 84.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Farmington's Water Unique?
Local geology and source profile
Farmington, Connecticut, in the Capitol Planning Region west of Hartford, receives its municipal water from the Metropolitan District Commission (MDC) — the regional water utility serving Hartford and surrounding communities — drawing from the Farmington River and Barkhamsted Reservoir system in the Western Connecticut Highlands. The Farmington River, one of New England's premier trout streams, originates in the Berkshire Hills of Massachusetts and drains southward through the Western Highlands into the Hartford Basin. MDC treats this mountain river water before distribution throughout the Capitol Region.
The moderately soft 84.5 mg/L hardness reflects the Farmington River's journey from the Western Connecticut Highlands — a region of Paleozoic metamorphic rocks including schists, gneisses, and amphibolites of the Berkshire Zone and Merrimack Zone — through the Mesozoic Hartford Basin, a rift valley filled with Triassic and Jurassic red sandstone and basalt (the Holyoke and Talcott basalt flows). Neither the metamorphic Highlands nor the Mesozoic basin sedimentary rocks contribute significant calcium carbonate, yielding water comfortably in the soft range with only minor hardness from mineral weathering.
At 84.5 mg/L, Farmington's water is soft — comfortable for everyday household use without softening treatment. Soap lathers well, appliances scale slowly, and glassware from the dishwasher shows minimal spotting. The significant concern for Farmington residents is the elevated PFAS level of 10.6 ppt — one of the highest in the Hartford metro area — reflecting decades of aerospace and defense industry activity in central Connecticut. Residents are strongly advised to use a certified NSF/ANSI 58 reverse osmosis or high-performance activated carbon filter for all drinking and cooking water, irrespective of the favorable hardness profile.
Geology & Source: Farmington in the Capitol Planning Region of Connecticut draws from the Farmington River watershed and MDC (Metropolitan District Commission) reservoir system — the Farmington River drains the Western Highlands through Paleozoic metamorphic schists, gneisses, and Mesozoic Hartford Basin sedimentary formations — producing moderately soft water at 84.5 mg/L, with elevated PFAS from the Hartford metro industrial corridor.