What was found in Florence's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1388.5 µg/L 14% of the EPA limit 10000 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019
Highest in the city: 2734 µg/L — GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2019 | 2/4 | SYR4 |
| Nitrate-Nitrite | 1354.5 µg/L 14% of the EPA limit 10000 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019
Highest in the city: 2718 µg/L — GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2019 | 2/4 | SYR4 |
| Fluoride | 927.5 µg/L 23% of the EPA limit 4000 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 2/4 | SYR4 |
| Chlorite | 646.8 µg/L 65% of the EPA limit 1000 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2014 | 1/4 | SYR4 |
| Copper | 210.75 µg/L 16% of the EPA limit 1300 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 3/4 | SYR4 |
| TTHM | 66.9 µg/L 84% of the EPA limit 80 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019
Highest in the city: 74.145 µg/L — WEST LAUDERDALE CO, WATER & FPA · 15,681 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 47.13 µg/L 79% of the EPA limit 60 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019
Highest in the city: 70.09 µg/L — WEST LAUDERDALE CO, WATER & FPA · 15,681 people · 2019 | 4/4 | SYR4 |
| Lead | 24.04 µg/L 160% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 2/4 | SYR4 |
| Barium | 21.9 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 2/4 | SYR4 |
| Chloroform | 18.025 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 2/4 | SYR4 |
| Dibromochloromethane | 14.672 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 1/4 | SYR4 |
| Bromodichloromethane | 6.536 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.26 pCi/L 15% of the EPA limit 15 pCi/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2018 | 2/4 | SYR4 |
| Nitrite | 2 µg/L 0.2% of the EPA limit 1000 µg/L Highest in the city: GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2019 | 1/4 | SYR4 |
| Dalapon | 1.2 µg/L 0.6% of the EPA limit 200 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 1/4 | SYR4 |
| Chromium | 0.6796 µg/L 0.7% of the EPA limit 100 µg/L Highest in the city: GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2019 | 1/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.4180 µg/L 7% of the EPA limit 6 µg/L Highest in the city: GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2019 | 1/4 | SYR4 |
| Atrazine | 0.2900 µg/L 9.7% of the EPA limit 3 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 1/4 | SYR4 |
| Beryllium, Total | 0.2500 µg/L 6.3% of the EPA limit 4 µg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2019 | 1/4 | SYR4 |
| PFOS | 0.0170 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2024
Highest in the city: 0.0223 µg/L — GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2025 | 4/4 | UCMR-5 |
| Pfba | 0.0097 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2024
Highest in the city: 0.0133 µg/L — GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2025 | 4/4 | UCMR-5 |
| PFOA | 0.0097 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2024
Highest in the city: 0.0130 µg/L — WEST LAUDERDALE CO, WATER & FPA · 15,681 people · 2025 | 4/4 | UCMR-5 |
| PFBS | 0.0051 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2024 | 4/4 | UCMR-5 |
| Pfhxa | 0.0032 µg/L No EPA limit set Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2024
Highest in the city: 0.0042 µg/L — GREENHILL WATER & FIRE PRO AUTHORITY · 8,214 people · 2025 | 3/4 | UCMR-5 |
| Lead | 0.0034 mg/L 23% of the EPA limit 0.0150 mg/L Main supplier: FLORENCE WATER DEPARTMENT, CITY OF · 77,766 people · 2025 | 4/4 | LCR |
| Pfhpa | 0.0031 µg/L No EPA limit set Highest in the city: WEST LAUDERDALE CO, WATER & FPA · 15,681 people · 2025 | 2/4 | UCMR-5 |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Florence
| Supplier | Population served |
|---|---|
| FLORENCE WATER DEPARTMENT, CITY OF | 77,766 |
| WEST LAUDERDALE CO, WATER & FPA | 15,681 |
| GREENHILL WATER & FIRE PRO AUTHORITY | 8,214 |
| CHISHOLM HEIGHTS, WATER & F P AUTHORITY | 4,881 |
Frequently asked questions about Florence tap water
Is Florence tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Florence. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Florence?
4 public water suppliers report drinking-water monitoring for Florence, Alabama to the EPA. Each is listed above with its population served.
What contaminants are in Florence's water?
The contaminants EPA monitoring detected in Florence include Nitrate, Nitrate-Nitrite, Fluoride, Chlorite, Copper. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.