Lauderdale County Water Quality
Lauderdale County, Alabama: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.
Highest result for each contaminant
One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.
Perfluorooctanesulfonic acid (PFOS)FLORENCE WATER DEPARTMENT, CITY OF4.0 ng/L federal MCL (2024) · US EPA17 ng/L
- FLORENCE WATER DEPARTMENT, CITY OF17 ng/LSample date: 2023-08-16 to 2024-05-16
Perfluorooctanoic acid (PFOA)FLORENCE WATER DEPARTMENT, CITY OF4.0 ng/L federal MCL (2024) · US EPA9.7 ng/L
- FLORENCE WATER DEPARTMENT, CITY OF9.7 ng/LSample date: 2023-08-16 to 2024-05-16
Lead (90th percentile)FLORENCE WATER DEPARTMENT, CITY OF15 µg/L federal action level · US EPA3.4 µg/L
- FLORENCE WATER DEPARTMENT, CITY OF3.4 µg/LMonitoring period: 2023–2025
Perfluorobutanesulfonic acid (PFBS)FLORENCE WATER DEPARTMENT, CITY OF2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA5.1 ng/L
- FLORENCE WATER DEPARTMENT, CITY OF5.1 ng/LSample date: 2023-08-16 to 2024-05-16
Perfluorohexanoic acid (PFHxA)FLORENCE WATER DEPARTMENT, CITY OF400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE3.2 ng/L
- FLORENCE WATER DEPARTMENT, CITY OF3.2 ng/LSample date: 2023-08-16 to 2024-05-16
Perfluorobutanoic acid (PFBA)FLORENCE WATER DEPARTMENT, CITY OFNo federal or state limit; shown for transparency9.7 ng/L
- FLORENCE WATER DEPARTMENT, CITY OF9.7 ng/LSample date: 2023-08-16 to 2024-05-16
25 substances tested, none detected in this systemShow
Tested in this system: FLORENCE WATER DEPARTMENT, CITY OF
- 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
- 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
- 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
- 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
- 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
- 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
- Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
- Lithium
- N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
- N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
- Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
- Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
- Perfluoro-3-methoxypropanoic acid (PFMPA)
- Perfluoro-4-methoxybutanoic acid (PFMBA)
- Perfluorodecanoic acid (PFDA)
- Perfluorododecanoic acid (PFDoA)
- Perfluoroheptanesulfonic acid (PFHpS)
- Perfluoroheptanoic acid (PFHpA)
- Perfluorohexanesulfonic acid (PFHxS)
- Perfluorononanoic acid (PFNA)
- Perfluoropentanesulfonic acid (PFPeS)
- Perfluoropentanoic acid (PFPeA)
- Perfluorotetradecanoic acid (PFTA)
- Perfluorotridecanoic acid (PFTrDA)
- Perfluoroundecanoic acid (PFUnA)
Cities ranked by the records
Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.
0of 1 city above the 15 µg/L action level
Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.
Lead in AlabamaLargest water systems
- FlorenceFLORENCE WATER DEPARTMENT, CITY OF · AL000078377,766 served
Frequently asked
How does Lauderdale County tap water compare across cities?
PurityMap ranks 1 city in Lauderdale County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Florence's main water system: FLORENCE WATER DEPARTMENT, CITY OF · PWSID AL0000783 · Purity Score 53 (Poor) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.
How many Lauderdale County cities had a PFAS sample above a 2024 EPA limit?
1 of 1 Lauderdale County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Florence (PFOS 17 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 1.
Is there lead in Lauderdale County tap water?
Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Lauderdale County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
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