What was found in St. Augustine'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 | 111 µg/L 1.1% of the EPA limit 10000 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2019
Highest in the city: 1100 µg/L — ST. AUGUSTINE RV PARK (FKA SHAMROCK) · 96 people · 2019 | 7/10 | SYR4 |
| Fluoride | 430 µg/L 11% of the EPA limit 4000 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2017
Highest in the city: 880 µg/L — ST. AUGUSTINE WS · 43,069 people · 2017 | 8/10 | SYR4 |
| Nitrite | 20 µg/L 2% of the EPA limit 1000 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2019
Highest in the city: 360 µg/L — CAMACHEE COVE YACHT HARBOR WTP · 312 people · 2019 | 3/10 | SYR4 |
| TTHM | 26.85 µg/L 34% of the EPA limit 80 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2019
Highest in the city: 215.884 µg/L — OAK HAVEN RETIREMENT VILLAGE · 40 people · 2019 | 10/10 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.0335 µg/L 18% of the EPA limit 60 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2019
Highest in the city: 199.718 µg/L — OAK HAVEN RETIREMENT VILLAGE · 40 people · 2019 | 10/10 | SYR4 |
| Barium | 10.94 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2017
Highest in the city: 16 µg/L — SJCU-NORTHWEST UTILITIES WTP · 48,040 people · 2019 | 8/10 | SYR4 |
| Selenium | 13 µg/L 26% of the EPA limit 50 µg/L Highest in the city: CAMACHEE COVE YACHT HARBOR WTP · 312 people · 2018 | 2/10 | SYR4 |
| Dalapon | 12 µg/L 6% of the EPA limit 200 µg/L Highest in the city: OAK HAVEN RETIREMENT VILLAGE · 40 people · 2015 | 1/10 | SYR4 |
| Lithium | 9.2 µg/L No EPA limit set Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2024 | 2/10 | UCMR-5 |
| Copper | 6.7 µg/L 0.5% of the EPA limit 1300 µg/L Highest in the city: WILDWOOD WATER COMPANY · 858 people · 2015 | 7/10 | SYR4 |
| Cyanide | 3.5 µg/L 1.8% of the EPA limit 200 µg/L Highest in the city: ST. AUGUSTINE RV PARK (FKA SHAMROCK) · 96 people · 2018 | 2/10 | SYR4 |
| Arsenic | 2.7 µg/L 27% of the EPA limit 10 µg/L Highest in the city: CAMACHEE COVE YACHT HARBOR WTP · 312 people · 2018 | 2/10 | SYR4 |
| Chromium | 0.1000 µg/L 0.1% of the EPA limit 100 µg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2017
Highest in the city: 2 µg/L — ST. AUGUSTINE WS · 43,069 people · 2017 | 3/10 | SYR4 |
| Dichloromethane | 0.9200 µg/L 18% of the EPA limit 5 µg/L Highest in the city: SJCU-NORTHWEST UTILITIES WTP · 48,040 people · 2019 | 1/10 | SYR4 |
| Lead | 0.2000 µg/L 1.3% of the EPA limit 15 µg/L Highest in the city: OAK HAVEN RETIREMENT VILLAGE · 40 people · 2018 | 2/10 | SYR4 |
| Hexachlorocyclopentadiene | 0.1400 µg/L 0.3% of the EPA limit 50 µg/L Highest in the city: OAK HAVEN RETIREMENT VILLAGE · 40 people · 2015 | 1/10 | SYR4 |
| Antimony, Total | 0.1000 µg/L 1.7% of the EPA limit 6 µg/L Highest in the city: ST. AUGUSTINE WS · 43,069 people · 2017 | 1/10 | SYR4 |
| Thallium, Total | 0.1000 µg/L 5% of the EPA limit 2 µg/L Highest in the city: ST. AUGUSTINE RV PARK (FKA SHAMROCK) · 96 people · 2018 | 1/10 | SYR4 |
| Lead | 0.00060 mg/L 4% of the EPA limit 0.0150 mg/L Main supplier: SJCU-CR214 MAINLAND WTP · 66,953 people · 2024
Highest in the city: 0.0023 mg/L — WILDWOOD WATER COMPANY · 858 people · 2024 | 10/10 | LCR |
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 St. Augustine
| Supplier | Population served |
|---|---|
| SJCU-CR214 MAINLAND WTP | 66,953 |
| SJCU-NORTHWEST UTILITIES WTP | 48,040 |
| ST. AUGUSTINE WS | 43,069 |
| SJCU-NORTHEAST UTILITIES WS | 14,790 |
| SJCU-NORTH BEACH UTILITIES | 4,200 |
| WILDWOOD WATER COMPANY | 858 |
| SJCU-EAGLE CREEK WS | 655 |
| CAMACHEE COVE YACHT HARBOR WTP | 312 |
| ST. AUGUSTINE RV PARK (FKA SHAMROCK) | 96 |
| OAK HAVEN RETIREMENT VILLAGE | 40 |
Frequently asked questions about St. Augustine tap water
Is St. Augustine tap water safe to drink?
EPA testing detected 19 contaminants in the water serving St. Augustine. 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 St. Augustine?
10 public water suppliers report drinking-water monitoring for St. Augustine, Florida to the EPA. Each is listed above with its population served.
What contaminants are in St. Augustine's water?
The contaminants EPA monitoring detected in St. Augustine include Nitrate, Fluoride, Nitrite, TTHM, Total Haloacetic Acids (HAA5). 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.