What was found in Kaplan'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 |
|---|---|---|---|
| Barium | 1000 µg/L 50% of the EPA limit 2000 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 1128.5 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2018 | 2/2 | SYR4 |
| Nitrate-Nitrite | 900 µg/L 9% of the EPA limit 10000 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Copper | 395 µg/L 30% of the EPA limit 1300 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Fluoride | 240 µg/L 6% of the EPA limit 4000 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| TTHM | 64.52 µg/L 81% of the EPA limit 80 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 157.3 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 25.46 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 64.35 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Bromoform | 7.8 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 64.3 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 25.1 µg/L 42% of the EPA limit 60 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 61.975 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 15.2 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 48.35 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 20.5 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 27.04 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Lead | 22.25 µg/L 148% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 0.8430 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 19.44 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Lithium | 17.5 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2025 | 1/2 | UCMR-5 |
| Dibromoacetic Acid | 6.75 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 17.22 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Chloroform | 13.88 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 13.86 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 5.125 µg/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 12.65 µg/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Selenium | 10 µg/L 20% of the EPA limit 50 µg/L Highest in the city: PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2018 | 1/2 | SYR4 |
| Chromium | 8.95 µg/L 9% of the EPA limit 100 µg/L Highest in the city: PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2018 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 7.7225 pCi/L No EPA limit set Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.1993 pCi/L 24% of the EPA limit 5 pCi/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019
Highest in the city: 2.79 pCi/L — PECAN ISLAND WW DISTRICT NO 3 · 1,230 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.8335 µg/L 14% of the EPA limit 6 µg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: CITY OF KAPLAN WATER SYSTEM · 4,340 people · 2023 | 2/2 | 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 Kaplan
| Supplier | Population served |
|---|---|
| CITY OF KAPLAN WATER SYSTEM | 4,340 |
| PECAN ISLAND WW DISTRICT NO 3 | 1,230 |
Frequently asked questions about Kaplan tap water
Is Kaplan tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Kaplan. 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 Kaplan?
2 public water suppliers report drinking-water monitoring for Kaplan, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Kaplan's water?
The contaminants EPA monitoring detected in Kaplan include Barium, Nitrate-Nitrite, Copper, Fluoride, TTHM. 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.