Covering Athens, Ardmore, Lester, Elkmont, Tanner. Updated with the latest utility data and the February 2026 Sierra Club PFAS findings.
Water Source
Groundwater wells; Limestone County Water & Sewer Authority
| Metric | Reading | Risk Level |
|---|---|---|
| Water Hardness | 16.0–20.0 GPG (among highest in North Alabama) | High |
| PFAS | LOW — Below detection limits in current utility monitoring | Low–Moderate |
| Disinfectant | Chlorine (standard) | Standard |
| Primary Concerns | Extreme hardness (16–20 GPG), iron in well water, calcium carbonate scale | |
⚠️ Hardness Warning: Limestone County regularly records the highest water hardness in North Alabama — some areas reaching 20 GPG. At this level, water heaters lose efficiency within 12–18 months and appliance lifespan is significantly shortened. A high-capacity softener rated for 20+ GPG is essential.
Recommended system: High-capacity water softener (48,000+ grain) + under-sink RO for drinking water
✔ Recommendation reviewed by a 18-Year Water Treatment Professional
Read the Full System Guide →County-wide data is a useful starting point, but your specific water source matters. Use our interactive diagnostic tool to get a recommendation based on your exact city, or run our free city diagnostic: