What was found in Clay Center'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 | 2300 µg/L 23% of the EPA limit 10000 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 5990 µg/L — HAWKS LANDING · 51 people · 2019 | 3/3 | SYR4 |
| Copper | 290 µg/L 22% of the EPA limit 1300 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2017
Highest in the city: 1700 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Barium | 10.94 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2017
Highest in the city: 399.5 µg/L — HAWKS LANDING · 51 people · 2017 | 3/3 | SYR4 |
| Fluoride | 199.5 µg/L 5% of the EPA limit 4000 µg/L Highest in the city: CLAY CO RWD 2 · 950 people · 2017 | 2/3 | SYR4 |
| TTHM | 18.4 µg/L 23% of the EPA limit 80 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 20.4 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Lithium | 13.2 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2025 | 1/3 | UCMR-5 |
| Dibromochloromethane | 6.33 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 7.14 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.34 µg/L 7.2% of the EPA limit 60 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 6.795 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 5.52 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 6.4 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 2/3 | SYR4 |
| Selenium | 5.825 µg/L 12% of the EPA limit 50 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2017 | 3/3 | SYR4 |
| Chloroform | 5.33 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019 | 3/3 | SYR4 |
| Lead | 5.155 µg/L 34% of the EPA limit 15 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2017 | 3/3 | SYR4 |
| Bromoform | 3.88 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019 | 3/3 | SYR4 |
| Chromium | 3.2 µg/L 3.2% of the EPA limit 100 µg/L Highest in the city: CLAY CO RWD 2 · 950 people · 2017 | 2/3 | SYR4 |
| Dibromoacetic Acid | 2.29 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 3.065 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 2.025 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 2.265 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1.1 µg/L 11% of the EPA limit 10 µg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2017
Highest in the city: 2.175 µg/L — HAWKS LANDING · 51 people · 2017 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.6000 pCi/L 12% of the EPA limit 5 pCi/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 1.4 pCi/L — CLAY CO RWD 2 · 950 people · 2014 | 3/3 | SYR4 |
| Monobromoacetic Acid | 1.052 µg/L No EPA limit set Highest in the city: CLAY CO RWD 2 · 950 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 0.6365 µg/L No EPA limit set Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2019
Highest in the city: 0.6545 µg/L — CLAY CO RWD 2 · 950 people · 2019 | 3/3 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L Highest in the city: HAWKS LANDING · 51 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: CLAY CENTER, CITY OF · 4,138 people · 2023 | 3/3 | 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 Clay Center
| Supplier | Population served |
|---|---|
| CLAY CENTER, CITY OF | 4,138 |
| CLAY CO RWD 2 | 950 |
| HAWKS LANDING | 51 |
Frequently asked questions about Clay Center tap water
Is Clay Center tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Clay Center. 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 Clay Center?
3 public water suppliers report drinking-water monitoring for Clay Center, Kansas to the EPA. Each is listed above with its population served.
What contaminants are in Clay Center's water?
The contaminants EPA monitoring detected in Clay Center include Nitrate, Copper, Barium, 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.