Forest Park Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
7.1
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
63 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 20% efficiency due to mineral buildup.
| Appliance | In Forest Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Forest Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Forest Park, Georgia | ≈ 120–179 mg/L | 5.3 ppt | 🟠 Hard | reservoir |
| Riverdale, Georgia | ≈ 0–60 mg/L | 5.4 ppt | 🟢 Soft | reservoir |
| College Park, Georgia | ≈ 0–60 mg/L | 7.2 ppt | 🟢 Soft | reservoir |
| East Point, Georgia | ≈ 120–179 mg/L | 109.7 ppt | 🟠 Hard | reservoir |
| Atlanta, Georgia | 20 mg/L | 4 ppt | 🟢 Soft | reservoir |
National Benchmark
How Forest Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Forest Park | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Forest Park's Water Unique?
Local geology and source profile
Clayton County Water Authority (CCWA) serves Forest Park, Georgia, alongside College Park and parts of Henry County within Clayton County. Primary water sources are surface water drawn from the Chattahoochee River, treated at the Robert McAllister Water Treatment Plant near Atlanta, supplemented by groundwater from wells tapping the Upper Floridan aquifer. CCWA manages distribution for over 300,000 residents across approximately 200 square miles, publishing annual Consumer Confidence Reports at ccwa.us for detailed compliance and testing data.
The Chattahoochee River originates in the Blue Ridge Mountains, flowing through the Piedmont physiographic province where Forest Park is located. The watershed features Precambrian granitic gneiss, amphibolite, and schist, releasing moderate dissolved minerals into surface runoff. Groundwater components derive from the Upper Floridan aquifer, a karst system with Eocene and Oligocene limestone and dolomitic layers that impart a moderately mineralised character to the blended supply through natural leaching of calcium and magnesium from alkaline earth rock formations.
Moderately hard water leads to moderate scale buildup in water heaters, dishwashers, and washing machines over time, reducing efficiency and lifespan. Faucets and glassware may show visible mineral deposits; skin dryness is possible. Regular vinegar descaling, installing scale-inhibiting filters, or annual appliance maintenance helps mitigate these effects. A water softener is recommended for households noticing spotting or reduced appliance performance. CCWA's water meets EPA standards; pH is typically 7.2–7.8, lead and copper compliance is strong, and low levels of disinfection byproducts such as TTHMs (<60 µg/L MCL) have been detected. Treatment at the McAllister plant involves coagulation, sedimentation, filtration, and chloramination.
Geology & Source: Piedmont province; Precambrian granitic gneiss, amphibolite, and schist over Upper Floridan aquifer Eocene-Oligocene limestone and dolomite — mixed surface and karst sources yield moderately mineralised water
Other Georgia Water Reports
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Frequently Asked Questions
Is Forest Park's water safe to drink?
Do I need a water softener in Forest Park?
How does Forest Park compare to the USA average?
Data Sources & Methodology
Water quality data for Forest Park is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.