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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Water quality data for 2 cities serving 308,190 residents
Mobile County in Alabama has an average water quality score of 70/100 (Grade C) based on analysis of 2 municipal water systems. The county's water systems serve approximately 308,190 residents.
Water quality in Mobile County is fair, with some cities showing room for improvement. 1 cities have scores below 70, indicating elevated contaminant levels that residents should be aware of. Mobile has the best water quality at 87/100.
2 cities ranked by water quality score
Real EPA readings across county water systems (lead: latest 90th percentile; PFAS: UCMR5 2023–2026; others: 2012–2019 averages)
| Contaminant | Avg Level | Max Level | EPA Limit | % of Limit | Cities |
|---|---|---|---|---|---|
| TTHM (2012–2019 avg) | 41.785 ug/L | 48.927 ug/L | 80 ug/L | 52.2% | 2 |
| HAA5 (2012–2019 avg) | 24.906 ug/L | 29.648 ug/L | 60 ug/L | 41.5% | 2 |
| Fluoride (2012–2019 avg) | 0.668 mg/L | 0.668 mg/L | 4 mg/L | 16.7% | 1 |
| Radium (2012–2019 avg) | 0.733 pCi/L | 0.733 pCi/L | 5 pCi/L | 14.7% | 1 |
| Lead (90th percentile) | 0.75 ppb | 1.5 ppb | 15 ppb | 5% | 2 |
| Nitrate (2012–2019 avg) | 0.111 mg/L | 0.111 mg/L | 10 mg/L | 1.1% | 1 |
| Arsenic (2012–2019 avg) | 0.035 ug/L | 0.035 ug/L | 10 ug/L | 0.4% | 1 |
| PFAS (PFOA/PFOS max, UCMR5) | 0 ppt | 0 ppt | 4 ppt | 0% | 2 |
Recent violations across county water systems
Showing 10 of 20 recent violations
Water quality in Mobile County, Alabama reflects the region's unique combination of water sources, treatment infrastructure, and environmental factors. Our comprehensive analysis examines 2 municipal water systems serving a combined population of over 308,190 residents.
The county shows moderate water quality performance, with scores ranging from 52/100 in Prichard to 87/100 in Mobile. This 35-point spread indicates significant variation in water quality across the county, suggesting different water sources or treatment approaches.
The most prevalent contaminants detected across Mobile County water systems include TTHM (2012–2019 avg), HAA5 (2012–2019 avg), Fluoride (2012–2019 avg). At least one reading averages above 50% of its EPA limit across the county's systems, worth attention from residents and utilities.
Water quality in Mobile County is fair but shows room for improvement. Residents in cities scoring below 70 should consider water filtration, particularly for drinking and cooking. Check your specific city's report above for personalized recommendations.
Mobile County has an average water quality score of 70/100 (Grade C) based on analysis of 2 municipal water systems serving 308,190 residents.
Mobile has the highest water quality score in Mobile County at 87/100. View the detailed report for Mobile.
Given the water quality variation across Mobile County, we recommend reviewing your specific city's water quality report. 1 cities have scores below 70, where filtration is particularly recommended.
Click on any city in the rankings table above to view its detailed water quality report, including contaminant levels, EPA compliance history, and filter recommendations.