Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 1996-01-01 → 1996-03-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-03-31 |
| MCL | Health-based | Resolved | 1996-01-01 → 1996-03-31 |
| MCL | Health-based | Resolved | 1995-10-01 → 1995-12-31 |
| MCL | Health-based | Resolved | 1995-10-01 → 1995-12-31 |
| MCL | Health-based | Resolved | 1995-10-01 → 1995-12-31 |
| MCL | Health-based | Resolved | 1995-10-01 → 1995-12-31 |
| MCL | Health-based | Archived | 1989-10-01 → 1990-09-30 |
| MCL | Health-based | Archived | 1989-10-01 → 1990-09-30 |
| MCL | Health-based | Resolved | 1987-02-18 → 1987-05-17 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 9500 µg/L 95% of the EPA limit 10000 µg/L | 58/58 | SYR4 | 2012–2019 |
| Copper | 169.5 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 200 µg/L | 22/23 | SYR4 | 2012–2018 |
| Lead | 4.85 µg/L 32% of the EPA limit 15 µg/L
worst single sample: 6 µg/L | 11/23 | SYR4 | 2012–2018 |
| Lead | 0.0072 mg/L 48% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2024 |
| Arsenic | 3.75 µg/L 38% of the EPA limit 10 µg/L
worst single sample: 3.8 µg/L | 6/6 | SYR4 | 2012–2018 |
| Barium | 255 µg/L 13% of the EPA limit 2000 µg/L
worst single sample: 260 µg/L | 6/6 | SYR4 | 2012–2018 |
| Chromium | 3.75 µg/L 3.8% of the EPA limit 100 µg/L
worst single sample: 3.8 µg/L | 6/6 | SYR4 | 2012–2018 |
| Fluoride | 422.5 µg/L 11% of the EPA limit 4000 µg/L
worst single sample: 430 µg/L | 6/6 | SYR4 | 2012–2018 |
| Selenium | 4.775 µg/L 9.6% of the EPA limit 50 µg/L
worst single sample: 4.8 µg/L | 6/6 | SYR4 | 2012–2018 |
| Bromodichloromethane | 2.52 µg/L No EPA limit set
worst single sample: 2.8 µg/L | 5/5 | SYR4 | 2013–2019 |
| Bromoform | 4.6 µg/L No EPA limit set
worst single sample: 4.7 µg/L | 5/5 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.74 µg/L No EPA limit set
worst single sample: 1.8 µg/L | 5/5 | SYR4 | 2013–2019 |
| Dibromochloromethane | 3.58 µg/L No EPA limit set
worst single sample: 3.6 µg/L | 5/5 | SYR4 | 2013–2019 |
| TTHM | 9.96 µg/L 12% of the EPA limit 80 µg/L
worst single sample: 10 µg/L | 5/5 | SYR4 | 2013–2019 |
| Chloroform | 1.2615 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 2/5 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 0.9920 µg/L No EPA limit set
worst single sample: 1 µg/L | 2/5 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 0.7845 µg/L No EPA limit set
worst single sample: 0.7900 µg/L | 2/5 | SYR4 | 2013–2019 |
| Atrazine | 2 µg/L 67% of the EPA limit 3 µg/L | 1/5 | SYR4 | 2016–2019 |
| Combined Radium (-226 And -228) | 1.4 pCi/L 28% of the EPA limit 5 pCi/L | 1/2 | SYR4 | 2015–2017 |
| Total Haloacetic Acids (HAA5) | 2.3 µg/L 3.8% of the EPA limit 60 µg/L | 1/5 | SYR4 | 2013–2019 |
42 contaminants tested, none detected
Utility contact
Frequently asked questions about Bison, City of
Is Bison, City of tap water safe to drink?
EPA monitoring detected 20 contaminants in Bison, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Bison, City of's water?
EPA monitoring detected Nitrate, Copper, Lead, Lead, Arsenic, and others. The full list with the level and data source for each is above.
How many people does Bison, City of serve?
Bison, City of reports serving 178 people in Kansas, per its EPA record.
Has Bison, City of had any water quality violations?
The EPA has 75 violations on file for Bison, City of, of which 18 are health-based (a contaminant limit or required treatment was breached) and 3 remain open. The rest are monitoring or reporting failures.
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.