Hazel Park Water Hardness & Quality Report (2026)
Water Hardness
7.8 grains per gallon
Source
river
pH Level
7.8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
252.3 mg/L
Est. Daily Cost
$0.36
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 Hazel Park, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Hazel Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.2 yrs | 8.5 yrs | -39% |
| Washing Machine | 8.6 yrs | 12 yrs | -28% |
| Water Heater | 10.2 yrs | 15 yrs | -32% |
Regional Water Comparison
How Hazel Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hazel Park, Michigan | 134 mg/L | 7.8 ppt | 🟠 Hard | river |
| Madison Heights, Michigan | 112.5 mg/L | 6.7 ppt | 🟡 Moderately Hard | river |
| Ferndale, Michigan | 104.5 mg/L | 6.3 ppt | 🟡 Moderately Hard | river |
| Royal Oak, Michigan | 84 mg/L | 5.3 ppt | 🟡 Moderately Hard | river |
| Oak Park, Michigan | 185.5 mg/L | 10.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Hazel Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hazel Park | 134 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Hazel Park's Water Unique?
Local geology and source profile
Hazel Park, Michigan, in Oakland County — an Oakland County city adjacent to Ferndale and Royal Oak in the north Detroit metro — receives its municipal water from the Great Lakes Water Authority (GLWA), drawing from the Detroit River through the Detroit Water and Sewerage Department treatment system (Oakland County).
The moderately hard 134 mg/L hardness and TDS of 252.3 mg/L reflect the north Oakland County GLWA supply, somewhat softer than the south Wayne County readings (Wayne: 167 mg/L; Westland: ~190 mg/L), reflecting the northern distribution zone receiving a slightly more diluted Lake Huron component. The Detroit River Great Lakes basin drains the Silurian Niagara Dolomite, Devonian Columbus Limestone, and calcareous Pleistocene Erie Lobe till, but the GLWA multi-intake blending (Lake Erie-Lake Huron corridor) produces moderate hardness at north Oakland County delivery points.
At 134 mg/L, Hazel Park's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 7.8 ppt warrants a certified drinking water filter — the Oakland County north Detroit industrial corridor (auto-manufacturing PFAS legacy from Royal Oak-Hazel Park corridor), and the Detroit metro Great Lakes multi-state PFAS drainage contribute to Hazel Park's elevated readings.
Geology & Source: Hazel Park in Oakland County draws from the Great Lakes Water Authority on the Detroit River (Oakland County, southeast Michigan) — the Detroit River connects Lake Erie to the upper Great Lakes (Silurian Niagara Dolomite, Devonian Columbus Limestone, calcareous Pleistocene Erie Lobe till) — Michigan Oakland County Detroit River Great Lakes carbonate basin produces moderately hard water at 134 mg/L with TDS 252.3 mg/L in this Oakland County Michigan city.