How does Stonecrest's water compare to the national average?

The USA national average is 151 mg/L. Stonecrest (≈ 0–59 mg/L) is 121 mg/L softer than average.

Stonecrest Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

Source

reservoir

pH Level

7.2

neutral = 7.0

Lead

0.006 mg/L

✓ Below action level

TDS

59 mg/L

Est. Daily Cost

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · est.

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 Stonecrest, your appliances are currently losing 4% efficiency due to mineral buildup.

Appliance	In Stonecrest	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Stonecrest compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Stonecrest, Georgia	≈ 0–59 mg/L	7 ppt	🟢 Soft	reservoir
Redan, Georgia	≈ 0–60 mg/L	9.5 ppt	🟢 Soft	reservoir
Conyers, Georgia	≈ 180+ mg/L	9.7 ppt	🔴 Very Hard	reservoir
Mountain Park, Georgia	≈ 120–179 mg/L	5.8 ppt	🟠 Hard	reservoir
Candler-McAfee, Georgia	≈ 0–60 mg/L	8.8 ppt	🟢 Soft	reservoir

National Benchmark

How Stonecrest compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Stonecrest	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Stonecrest's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 59 mg/LpH: 7.2

DeKalb County Department of Watershed Management (DKWDM) provides water to Stonecrest, located in DeKalb County, Georgia, serving over 700,000 residents across DeKalb and portions of Fulton County. The primary source is surface water from the Chattahoochee River, treated at the Scott Candler Water Treatment Plant (70 MGD capacity) and the Big Creek Water Treatment Plant. Supplemental groundwater may be drawn from local wells tied to the Floridan aquifer system during peak demand.

The Chattahoochee River originates in the Blue Ridge Mountains and flows through the Piedmont region's metamorphic terrain before reaching treatment intakes near Atlanta. This watershed features ancient gneiss and granite bedrock from the Grenville orogeny, overlain by thin soils that limit mineral leaching into surface flows. Where groundwater supplements are used, the Upper Floridan aquifer in Tertiary limestone contributes, but the overall soft water character stems from low rock-water interaction and dilution in the large river basin, avoiding heavy mineralization typical of karst limestone areas.

With soft water, Stonecrest residents experience minimal scale buildup on fixtures and appliances, good soap lathering, and reduced spotting on dishes or glassware. Water heaters and coffee makers see extended lifespans without calcification — no water softener is needed or recommended. Maintenance is straightforward: regular cleaning suffices. The utility meets all EPA standards for lead and copper, with no action level exceedances; treatment includes coagulation, sedimentation, filtration, and chloramination. The water is fluoridated to 0.7 ppm and total trihalomethanes remain below 60 ppb.

Geology & Source: Chattahoochee River Piedmont watershed; Precambrian-Paleozoic gneiss, schist, and granite from Grenville orogeny — low mineral leaching yields soft supply; supplemental Upper Floridan aquifer in Tertiary limestone contributes minimally

Other Georgia Water Reports

Redan

≈ 0–60 mg/L

🟢 Soft

Conyers

≈ 180+ mg/L

🔴 Very Hard

Mountain Park

≈ 120–179 mg/L

🟠 Hard

Candler-McAfee

≈ 0–60 mg/L

🟢 Soft

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Stonecrest's water safe to drink?

Yes. Stonecrest's water meets all federal safety standards. The hardness is ≈ 0–59 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Stonecrest?

Stonecrest's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Stonecrest compare to the USA average?

The USA national average is 151 mg/L. Stonecrest (≈ 0–59 mg/L) is 121 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Stonecrest is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.