Are you wondering if lead is a problem in your home’s water supply? The Atlanta water system serving DeKalb and Fulton counties has been tested for lead, among other substances. Understanding what these findings mean can help you decide your next steps.
If Certain Fixtures or Appliances Show Signs of Lead, What Should You Know?
Lead can leach into water primarily through plumbing materials such as old pipes, solder, or fixtures containing lead. Faucets, especially those used for drinking or cooking water, can be the first points where lead levels become noticeable. Homes with older plumbing may see lead concentrations at taps even if the public water system itself meets regulatory standards.
If You Notice Water Quality Issues, How Do Health-Based Limits Relate to Secondary Aesthetic Standards for Lead?
The Environmental Protection Agency (EPA) sets health-based limits to protect people from contaminants at levels linked to adverse health effects. There are also secondary standards focused on taste, staining, or corrosivity, which are not health-related limits. For lead, health-based standards aim to minimize exposure because it poses health concerns, especially to children and pregnant women. A detection of lead does not automatically imply a violation or immediate risk—it means the instrument measured lead at a certain level during sampling.
If You Get a Certified Laboratory Test for Lead, What Will It Report and How Should You Interpret the Results?
Certified lab tests for lead in water report concentrations often in milligrams per liter (mg/L). Results include numeric values and sometimes percentiles like the 90th percentile—a statistical value indicating the lead concentration below which 90% of samples fall. For example, the Atlanta water system had a 90th percentile lead result of 0.0014 mg/L from samples collected in late 2024, measured at taps within the distribution system. This reflects plumbing and distribution system conditions, not the raw source water.
If Treated Water Passes Through an Autotrol Lead in Water Filter, How Will It Change at the Tap?
The Autotrol Lead in Water Filter is designed to reduce lead present in water at the point where it enters your home plumbing. It uses filtration technologies documented for effective lead removal, improving water quality where you use it most. After the system ships ready to configure, it creates a barrier that captures lead particles, resulting in lower lead levels in the water delivered to your faucets and appliances.
If You Consider How Lead Enters Groundwater or the Distribution System in the Atlanta Area, What Does the Data Show?
Atlanta’s water supply comes from surface water sources rather than groundwater. Lead presence in the distribution system and household taps usually arises from corrosion of plumbing materials rather than from the water source itself. The EPA’s records for the Atlanta water system, serving nearly 1.1 million people, include five health-based violations among many total tests, but these do not conclusively show unsafe lead levels in tap water generally.
If You Look at Terms Like 'Detected,' 'Median,' and 'Range' in the Sampling Data, What Do They Mean for Your Water?
- Detected: Indicates the presence of lead was measured by instruments during sampling, but detection alone does not mean a violation or unsafe water.
- Median: The middle value of all sample results, showing a typical concentration but not extremes.
- Range: The span between the lowest and highest measured lead concentrations in samples, illustrating variability.
These terms help describe the overall condition of the water system but do not specify the exact lead level at any one home’s tap, which can be influenced by individual plumbing.
What you should not conclude from this area data is that your home's water definitely contains a certain amount of lead or is unsafe. The documented public water system data applies to the overall distribution and includes plumbing effects in many locations but cannot replace a specific test of your home’s water. To understand your own water, consider a certified laboratory test of samples taken from your taps.
For households concerned about lead, the Autotrol Lead in Water Filter offers a documented approach to reduce lead at your tap, improving water safety and peace of mind.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2024-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for ATLANTA (GA1210001), surface water supply, serving 1089893 people: 5 health-based violations of 13 total; lead 90th percentile 0.0014 mg/L
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.