What was found in Florence's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 10000 µg/L 100% of the EPA limit 10000 µg/L | 6/7 | SYR4 |
| Nitrate-Nitrite | 9970 µg/L 100% of the EPA limit 10000 µg/L | 6/7 | SYR4 |
| Copper | 3600 µg/L 277% of the EPA limit, in the worst sample — 1300 µg/L | 6/7 | SYR4 |
| Fluoride | 1400 µg/L 35% of the EPA limit 4000 µg/L | 4/7 | SYR4 |
| Lead | 450 µg/L 3000% of the EPA limit, in the worst sample — 15 µg/L | 5/7 | SYR4 |
| Lithium | 320 µg/L No EPA limit set | 3/7 | UCMR-5 |
| Barium | 97 µg/L 4.9% of the EPA limit 2000 µg/L | 5/7 | SYR4 |
| TTHM | 26.9 µg/L 34% of the EPA limit 80 µg/L | 5/7 | SYR4 |
| Arsenic | 15.6 µg/L 156% of the EPA limit, in the worst sample — 10 µg/L | 5/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.4 µg/L 9% of the EPA limit 60 µg/L | 2/7 | SYR4 |
| Dibromochloromethane | 5 µg/L No EPA limit set | 1/7 | SYR4 |
| Bromoform | 4.8 µg/L No EPA limit set | 2/7 | SYR4 |
| Combined Uranium | 3.874 µg/L 13% of the EPA limit 30 µg/L | 1/7 | SYR4 |
| Chromium | 3.6 µg/L 3.6% of the EPA limit 100 µg/L | 5/7 | SYR4 |
| Dibromoacetic Acid | 2.7 µg/L No EPA limit set | 1/7 | SYR4 |
| Bromodichloromethane | 1.8 µg/L No EPA limit set | 1/7 | SYR4 |
| Combined Radium (-226 And -228) | 1.8 pCi/L 36% of the EPA limit 5 pCi/L | 2/7 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.5 pCi/L 10% of the EPA limit 15 pCi/L | 1/7 | SYR4 |
| Selenium | 0.8700 µg/L 1.7% of the EPA limit 50 µg/L | 1/7 | SYR4 |
| PFBS | 0.0600 µg/L No EPA limit set | 1/7 | UCMR-5 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0160 µg/L 8% of the EPA limit 0.2000 µg/L | 1/7 | SYR4 |
| Lead | 0.0150 mg/L 100% of the EPA limit 0.0150 mg/L | 7/7 | LCR |
| Pfba | 0.0090 µg/L No EPA limit set | 1/7 | UCMR-5 |
| PFHXS | 0.0070 µg/L No EPA limit set | 1/7 | UCMR-5 |
Water suppliers serving Florence
| Supplier | Population served |
|---|---|
| FLORENCE WATER COMPANY | 15,900 |
| ADOC EYMAN UNIT | 3,969 |
| ADOC FLORENCE ASP | 1,001 |
| PINAL COUNTY JUSTICE COMPLEX | 820 |
| TONTO BASIN WATER - CACTUS FOREST | 613 |
| DESERT GARDENS RV RESORT CO-OP, INC | 532 |
| PARK WATER COMPANY INC | 416 |
Frequently asked questions about Florence tap water
Is Florence tap water safe to drink?
EPA testing detected 24 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?
7 public water suppliers report drinking-water monitoring for Florence, Arizona 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, Copper, Fluoride, Lead. The full list, with the highest level found 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.