Waterford Water Hardness & Quality Report (2026)
Water Hardness
4.5 grains per gallon
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
180.8 mg/L
Est. Daily Cost
$0.21
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 Waterford, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Waterford | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7 yrs | 8.5 yrs | -18% |
| Washing Machine | 10.7 yrs | 12 yrs | -11% |
| Water Heater | 12.5 yrs | 15 yrs | -17% |
Regional Water Comparison
How Waterford compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Waterford, Connecticut | 77.5 mg/L | 10 ppt | 🟡 Moderately Hard | reservoir |
| New London, Connecticut | 83.5 mg/L | 10.5 ppt | 🟡 Moderately Hard | reservoir |
| Montville Center, Connecticut | 65.5 mg/L | 8.9 ppt | 🟡 Moderately Hard | reservoir |
| Ledyard, Connecticut | 22 mg/L | 5.2 ppt | 🟢 Soft | reservoir |
| Norwich, Connecticut | 98.5 mg/L | 11.8 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Waterford compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Waterford | 77.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Waterford's Water Unique?
Local geology and source profile
Waterford, Connecticut, in New London County — a New London County town adjacent to New London and Groton, home of the Millstone Nuclear Power Station (Dominion Energy) and bordering the US Navy Submarine Base New London — receives its municipal water from the Waterford Water Department or Connecticut Water, drawing from local southeast Connecticut reservoirs in the New London County area.
The moderately soft 77.5 mg/L hardness and TDS of 180.8 mg/L reflect the southeastern Connecticut reservoir system's crystalline upland character. Southeast Connecticut's reservoirs drain the Eastern Connecticut Upland — terrain underlain by Proterozoic gneiss, Ordovician crystalline metamorphic, and the Pennsylvanian Narragansett Basin fringe (graphitic schist and quartzite). All are insoluble silicate rocks, producing the moderately soft water characteristic of the southeast Connecticut upland region.
At 77.5 mg/L, Waterford's water is moderately soft — comfortable for household use. Scale forms slowly, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 10.0 ppt warrants a certified reverse osmosis drinking water filter — the US Navy Submarine Base New London (Groton, adjacent to Waterford — a major submarine AFFF-using installation), the Millstone Nuclear Plant industrial corridor, and the US Coast Guard Academy (New London) PFAS complex are major documented PFAS contributors to the southeast Connecticut water system.
Geology & Source: Waterford in New London County draws from the Waterford Water Department or Connecticut Water on local Norwich reservoirs or the Quinebaug-Shetucket watershed — the southeast Connecticut reservoir system drains the Eastern Connecticut Upland (Proterozoic-Cambrian gneiss and Pennsylvanian metamorphic) — Connecticut crystalline upland watershed produces moderately soft water at 77.5 mg/L with TDS 181 mg/L in this New London County Connecticut town.