Covering Guntersville, Albertville, Boaz, Arab, Guntersville Lake area. Updated with the latest utility data and the February 2026 Sierra Club PFAS findings.
Water Source
Lake Guntersville (primary municipal source)
| Metric | Reading | Risk Level |
|---|---|---|
| Water Hardness | 10.0–13.0 GPG | High |
| PFAS | UNDETECTED — Below detection limits in current testing | Low–Moderate |
| Disinfectant | Chlorine (standard) | Standard |
| Primary Concerns | Moderate hardness, seasonal algae/taste from Lake Guntersville, occasional turbidity after heavy rain | |
✅ Relatively Good Profile: Marshall County has one of the better water quality profiles in North Alabama. PFAS is undetected, and hardness is moderate rather than extreme. The main concerns are seasonal taste and odor changes from Lake Guntersville algae blooms (typically July–September) and moderate scale buildup from 10–13 GPG hardness. A standard 48,000-grain softener addresses the hardness effectively.
Recommended system: Water softener (standard capacity) + whole-home carbon filter for taste/odor. RO optional for drinking water.
✔ Recommendation reviewed by a 19-Year Water Industry Veteran
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 use our free quiz: