Southgate Water Hardness & Quality Report (2026)
Water Hardness
5.9 grains per gallon
Source
river
pH Level
7.6
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
166.7 mg/L
Est. Daily Cost
$0.27
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 Southgate, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Southgate | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.3 yrs | 8.5 yrs | -26% |
| Washing Machine | 9.9 yrs | 12 yrs | -17% |
| Water Heater | 11.6 yrs | 15 yrs | -23% |
Regional Water Comparison
How Southgate compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Southgate, Michigan | 101 mg/L | 6.1 ppt | 🟡 Moderately Hard | river |
| Lincoln Park, Michigan | 204.5 mg/L | 11.4 ppt | 🔴 Very Hard | river |
| Wyandotte, Michigan | 87.5 mg/L | 5.4 ppt | 🟡 Moderately Hard | river |
| Allen Park, Michigan | 216.5 mg/L | 12 ppt | 🔴 Very Hard | river |
| Trenton, Michigan | 224.5 mg/L | 12.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Southgate compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Southgate | 101 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Southgate's Water Unique?
Local geology and source profile
Southgate, Michigan, in Wayne County — a major south Wayne County suburban community (Southgate is a significant Wayne County city — a south Wayne County suburb in the Downriver Detroit suburban belt; 'Downriver' is the collective term for the cluster of south Wayne County suburban communities (Southgate, Wyandotte, Taylor, Brownstown, etc.) along the Detroit River south of Detroit; the Downriver communities have a strong industrial and working-class identity — historically home of steel mills, automotive manufacturing, and chemical plants along the Detroit River), a diverse Wayne County community with a primarily Polish-American, Irish-American, and working-class suburban population, adjacent to Allen Park and Taylor in the south Wayne County corridor, home of Southgate Anderson High School (one of the major high schools in the Downriver community), and a classic Downriver Detroit suburban community — draws its municipal water supply from Lake Erie via the Detroit River via the Great Lakes Water Authority. Water hardness in Southgate measures 101 mg/L — classified as moderately hard.
Southgate's moderate hardness reflects the south Wayne County GLWA distribution zone's effective treatment. The GLWA distributes Lake Erie–Detroit River supply to the south Wayne County Southgate zone with effective treatment, producing the moderate 101 mg/L.
At 101 mg/L, Southgate residents encounter moderate scale accumulation. Monthly cleaning is recommended. Great Lakes Water Authority consistently delivers water meeting all Michigan EGLE and EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from the Lake Erie (Detroit River watershed) via the Great Lakes Water Authority (GLWA) — the Wayne County south Wayne County suburban Southgate corridor (Devonian calcareous-moderate Michigan Basin dolomite — the calcareous south Wayne County GLWA distribution to Southgate zone; effective treatment); moderately hard supply at 101 mg/L in Wayne County.