What was found in Wellington'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 | 5800 µg/L 58% of the EPA limit 10000 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Fluoride | 1200 µg/L 30% of the EPA limit 4000 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Copper | 48 µg/L 3.7% of the EPA limit 1300 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 150 µg/L — SUMNER CO RWD 1 · 280 people · 2018 | 4/4 | SYR4 |
| TTHM | 93.9 µg/L 117% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 101.5 µg/L — SUMNER CO RWD 1 · 280 people · 2019 | 4/4 | SYR4 |
| Barium | 66.25 µg/L 3.3% of the EPA limit 2000 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Chloroform | 36.6 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 42.7 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 38 µg/L 63% of the EPA limit 60 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 42.5 µg/L — SUMNER CO RWD 2 · 490 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 36.15 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 38.15 µg/L — SUMNER CO RWD 1 · 280 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 31 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 36.9 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 19 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 22.95 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Lead | 16 µg/L 107% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 4/4 | SYR4 |
| Bromoform | 12 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 13 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 9.83 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 12.975 µg/L — SUMNER CO RWD 2 · 490 people · 2019 | 4/4 | SYR4 |
| Lithium | 12.4 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2025 | 1/4 | UCMR-5 |
| Dibromoacetic Acid | 9.83 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 11.9 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 7.655 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 10.08 µg/L — SUMNER CO RWD 3 · 80 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 2.685 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019
Highest in the city: 3.86 µg/L — SUMNER CO RWD 1 · 280 people · 2019 | 4/4 | SYR4 |
| Selenium | 3.465 µg/L 6.9% of the EPA limit 50 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Atrazine | 2.163 µg/L 72% of the EPA limit 3 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Arsenic | 1.765 µg/L 18% of the EPA limit 10 µg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0074 µg/L No EPA limit set Main supplier: WELLINGTON, CITY OF · 7,664 people · 2025 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: WELLINGTON, CITY OF · 7,664 people · 2024
Highest in the city: 0.0053 mg/L — SUMNER CO RWD 1 · 280 people · 2024 | 4/4 | 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 Wellington
| Supplier | Population served |
|---|---|
| WELLINGTON, CITY OF | 7,664 |
| SUMNER CO RWD 2 | 490 |
| SUMNER CO RWD 1 | 280 |
| SUMNER CO RWD 3 | 80 |
Frequently asked questions about Wellington tap water
Is Wellington tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Wellington. 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 Wellington?
4 public water suppliers report drinking-water monitoring for Wellington, Kansas to the EPA. Each is listed above with its population served.
What contaminants are in Wellington's water?
The contaminants EPA monitoring detected in Wellington include Nitrate, Fluoride, Copper, TTHM, Barium. 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.