Brookfield Water Hardness & Quality Report (2026)
Water Hardness
12.4 grains per gallon
Source
groundwater
pH Level
8.3
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
634.6 mg/L
Est. Daily Cost
$0.57
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 Brookfield, your appliances are currently losing 28% efficiency due to mineral buildup.
| Appliance | In Brookfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.6 yrs | 8.5 yrs | -69% |
| Washing Machine | 5.8 yrs | 12 yrs | -52% |
| Water Heater | 7.1 yrs | 15 yrs | -53% |
Regional Water Comparison
How Brookfield compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Brookfield, Wisconsin | 212 mg/L | 5.7 ppt | 🔴 Very Hard | groundwater |
| New Berlin, Wisconsin | 172 mg/L | 4.8 ppt | 🟠 Hard | groundwater |
| Wauwatosa, Wisconsin | 240 mg/L | 6.3 ppt | 🔴 Very Hard | groundwater |
| West Allis, Wisconsin | 260 mg/L | 6.8 ppt | 🔴 Very Hard | groundwater |
| Menomonee Falls, Wisconsin | 236.5 mg/L | 6.2 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Brookfield compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Brookfield | 212 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Brookfield's Water Unique?
Local geology and source profile
Brookfield, Wisconsin, in Waukesha County — one of the most affluent and fastest-growing communities in Wisconsin (Brookfield is consistently ranked among the best places to live in Wisconsin — a wealthy Waukesha County community adjacent to Milwaukee's western border), home of the Brookfield Square Mall (one of the primary retail centers in the Milwaukee western suburbs), a major Waukesha County commercial and residential community, and a diverse west Milwaukee suburban community — draws its municipal water supply from the Silurian Niagara Dolomite Aquifer via the City of Brookfield Water Division. Water hardness in Brookfield measures 212 mg/L — classified as very hard.
Brookfield's very hard supply reflects the Waukesha County Silurian Niagara Dolomite aquifer's highly calcareous geology — the characteristic of virtually all southeast Wisconsin communities. The Silurian Niagara Dolomite at Brookfield–Waukesha County is a highly calcareous marine dolomite (95–98% CaMg(CO3)2). Brookfield's wells draw from deeper Niagara Dolomite zones than some communities, accumulating very high dolomite hardness. City of Brookfield's treatment of the Niagara Dolomite produces the very hard 212 mg/L.
At 212 mg/L, Brookfield residents face severe hard water challenges. Weekly descaling and appliance protection measures are strongly recommended. City of Brookfield Water Division consistently delivers water meeting all Wisconsin DNR and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Silurian Niagara Dolomite Aquifer via the City of Brookfield Water Division — the Waukesha County southeast Wisconsin dolomite plateau (Silurian Niagara Dolomite — the dominant highly calcareous dolomite aquifer of Waukesha County; Brookfield's deeper Niagara Dolomite wells); very hard supply at 212 mg/L in Waukesha County.