Forest Park Water Hardness & Quality Report (2026)
Water Hardness
5.5 grains per gallon
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
175.8 mg/L
Est. Daily Cost
$0.25
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 Forest Park, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Forest Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.5 yrs | 8.5 yrs | -24% |
| Washing Machine | 10.1 yrs | 12 yrs | -16% |
| Water Heater | 11.8 yrs | 15 yrs | -21% |
Regional Water Comparison
How Forest Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Forest Park, Georgia | 95 mg/L | 5.3 ppt | 🟡 Moderately Hard | reservoir |
| Riverdale, Georgia | 97.5 mg/L | 5.4 ppt | 🟡 Moderately Hard | reservoir |
| College Park, Georgia | 121 mg/L | 7.2 ppt | 🟠 Hard | reservoir |
| East Point, Georgia | 80.5 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
| Atlanta, Georgia | 101 mg/L | 5.8 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Forest Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Forest Park | 95 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Forest Park's Water Unique?
Local geology and source profile
Forest Park, Georgia, in Clayton County — a Clayton County city adjacent to Atlanta and College Park, in the south Atlanta suburban corridor adjacent to Hartsfield-Jackson Atlanta International Airport — receives its municipal water from the Clayton County Water Authority (CCWA), which draws from Lake Spivey and the Tussahaw Creek Reservoir system, supplemented by the Flint River intake for the Clayton County area.
The moderately soft 95 mg/L hardness and TDS of 175.8 mg/L reflect the Clayton County reservoir system's Georgia Piedmont crystalline watershed character. The Clayton County reservoirs collect drainage from the Georgia Piedmont — terrain underlain by Proterozoic and Cambrian metamorphic gneiss, schist, and granite of the southern Appalachian crystalline complex. This resistant silicate bedrock produces the moderately soft water characteristic of the north Georgia Piedmont supplies throughout the Atlanta region.
At 95 mg/L, Forest Park'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 5.3 ppt warrants a certified drinking water filter — Hartsfield-Jackson Atlanta International Airport (Clayton County — major aviation PFAS-AFFF user), the Ford Motor Company Hapeville assembly complex (former), the Clayton County industrial-logistics corridor, and the Atlanta metro PFAS complex contribute to Forest Park's readings.
Geology & Source: Forest Park in Clayton County draws from the Clayton County Water Authority (CCWA) on Lake Spivey (Towaliga River-Tussahaw Creek) or the Flint River (Clayton County system) — the Tussahaw-Towaliga watershed drains the Georgia Piedmont (Precambrian and Cambrian crystalline gneiss and schist) — Georgia Piedmont crystalline watershed produces moderately soft water at 95 mg/L with TDS 176 mg/L in this Clayton County Georgia city.