What was found in Tonganoxie'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 |
|---|---|---|---|
| Copper | 1400 µg/L 108% of the EPA limit, at the 95th percentile of samples — 1300 µg/L Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019 | 4/4 | SYR4 |
| Nitrate | 350 µg/L 3.5% of the EPA limit 10000 µg/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2019 | 1/4 | SYR4 |
| Fluoride | 179 µg/L 4.5% of the EPA limit 4000 µg/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2017 | 1/4 | SYR4 |
| Barium | 158.5 µg/L 7.9% of the EPA limit 2000 µg/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2017 | 1/4 | SYR4 |
| TTHM | 25.75 µg/L 32% of the EPA limit 80 µg/L Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 75 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 14.3 µg/L 24% of the EPA limit 60 µg/L Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 49 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Chloroform | 15 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 46.4 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Lithium | 40 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2023 | 1/4 | UCMR-5 |
| Dichloroacetic Acid | 6.51 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 25 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 8.17 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 21 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 5.495 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 16.2 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 4/4 | SYR4 |
| Lead | 9.5 µg/L 63% of the EPA limit 15 µg/L Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 14.63 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2017 | 4/4 | SYR4 |
| Monochloroacetic Acid | 0.5760 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 11.51 µg/L — LEAVENWORTH CO RWD 6 · 240 people · 2019 | 3/4 | SYR4 |
| Dibromochloromethane | 2.645 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 9.7 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 3/4 | SYR4 |
| P-Dichlorobenzene | 5.9 µg/L 7.9% of the EPA limit 75 µg/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2019 | 1/4 | SYR4 |
| Chromium | 5.6 µg/L 5.6% of the EPA limit 100 µg/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2017 | 1/4 | SYR4 |
| Dibromoacetic Acid | 1.52 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 4.775 µg/L — LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 3/4 | SYR4 |
| Monobromoacetic Acid | 0.9325 µg/L No EPA limit set Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2019
Highest in the city: 2.59 µg/L — LEAVENWORTH CO RWD 6 · 240 people · 2019 | 3/4 | SYR4 |
| Combined Radium (-226 And -228) | 2.4 pCi/L 48% of the EPA limit 5 pCi/L Highest in the city: PARADISE PARK MOBILE HOME COURT · 110 people · 2017 | 1/4 | SYR4 |
| Bromoform | 1.855 µg/L No EPA limit set Highest in the city: LEAVENWORTH CO RWD 9 · 2,000 people · 2019 | 2/4 | SYR4 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L Main supplier: TONGANOXIE, CITY OF · 5,702 people · 2023
Highest in the city: 0.0031 mg/L — LEAVENWORTH CO RWD 6 · 240 people · 2023 | 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 Tonganoxie
| Supplier | Population served |
|---|---|
| TONGANOXIE, CITY OF | 5,702 |
| LEAVENWORTH CO RWD 9 | 2,000 |
| LEAVENWORTH CO RWD 6 | 240 |
| PARADISE PARK MOBILE HOME COURT | 110 |
Frequently asked questions about Tonganoxie tap water
Is Tonganoxie tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Tonganoxie. 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 Tonganoxie?
4 public water suppliers report drinking-water monitoring for Tonganoxie, Kansas to the EPA. Each is listed above with its population served.
What contaminants are in Tonganoxie's water?
The contaminants EPA monitoring detected in Tonganoxie include Copper, Nitrate, Fluoride, Barium, 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.