Compliance record
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 640 µg/L 6.4% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Chloroform | 5.106 µg/L No EPA limit set
worst single sample: 5.25 µg/L | 9/9 | SYR4 | 2013–2019 |
| Bromodichloromethane | 2.7705 µg/L No EPA limit set
worst single sample: 3.18 µg/L | 8/9 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 7.531 µg/L No EPA limit set
worst single sample: 7.54 µg/L | 7/7 | SYR4 | 2013–2019 |
| TTHM | 8.644 µg/L 11% of the EPA limit 80 µg/L
worst single sample: 9.34 µg/L | 7/7 | SYR4 | 2013–2019 |
| Arsenic | 1.13 µg/L 11% of the EPA limit 10 µg/L | 2/2 | SYR4 | 2014–2017 |
| Barium | 46.13 µg/L 2.3% of the EPA limit 2000 µg/L
worst single sample: 46.5 µg/L | 2/2 | SYR4 | 2014–2017 |
| Copper | 4.3215 µg/L 0.3% of the EPA limit 1300 µg/L
worst single sample: 4.4 µg/L | 2/2 | SYR4 | 2014–2017 |
| Chromium | 1.872 µg/L 1.9% of the EPA limit 100 µg/L
worst single sample: 1.89 µg/L | 2/2 | SYR4 | 2014–2017 |
| Dibromochloromethane | 1.237 µg/L No EPA limit set
worst single sample: 1.27 µg/L | 2/9 | SYR4 | 2013–2019 |
| Fluoride | 169 µg/L 4.2% of the EPA limit 4000 µg/L
worst single sample: 170 µg/L | 2/2 | SYR4 | 2014–2017 |
| Trichloroacetic Acid | 1.1765 µg/L No EPA limit set
worst single sample: 1.19 µg/L | 2/7 | SYR4 | 2013–2019 |
| Atrazine | 0.4300 µg/L 14% of the EPA limit 3 µg/L | 1/1 | SYR4 | 2017 |
| Dibromoacetic Acid | 1.84 µg/L No EPA limit set | 1/7 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 4.89 µg/L No EPA limit set | 1/7 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 15 µg/L 25% of the EPA limit 60 µg/L | 1/7 | SYR4 | 2013–2019 |
51 contaminants tested, none detected
Utility contact
Frequently asked questions about Tri County Water Authority
Is Tri County Water Authority tap water safe to drink?
EPA monitoring detected 16 contaminants in Tri County Water Authority'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 Tri County Water Authority's water?
EPA monitoring detected Nitrate-Nitrite, Chloroform, Bromodichloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.
How many people does Tri County Water Authority serve?
Tri County Water Authority reports serving 25 people in Missouri, per its EPA record.
Has Tri County Water Authority had any water quality violations?
The EPA has no formal drinking-water violations on file for Tri County Water Authority.
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.