What was found in Odessa'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 |
|---|---|---|---|
| TTHM | 9.0525 µg/L 11% of the EPA limit 80 µg/L Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 131.99999999999994 µg/L — ODESSA PWS · 5,202 people · 2019 | 3/3 | SYR4 |
| Fluoride | 129.5 µg/L 3.2% of the EPA limit 4000 µg/L Highest in the city: ODESSA PWS · 5,202 people · 2017 | 1/3 | SYR4 |
| Nitrate-Nitrite | 110 µg/L 1.1% of the EPA limit 10000 µg/L Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Copper | 18.759999999999994 µg/L 1.4% of the EPA limit 1300 µg/L Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2017
Highest in the city: 63.71 µg/L — ODESSA PWS · 5,202 people · 2018 | 3/3 | SYR4 |
| Chloroform | 7.005 µg/L No EPA limit set Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 54.25 µg/L — ODESSA PWS · 5,202 people · 2019 | 3/3 | SYR4 |
| Lithium | 44 µg/L No EPA limit set Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2024 | 2/3 | UCMR-5 |
| Bromodichloromethane | 1.9084999999999996 µg/L No EPA limit set Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 38.45 µg/L — ODESSA PWS · 5,202 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15 µg/L 25% of the EPA limit 60 µg/L Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 33.949999999999996 µg/L — ODESSA PWS · 5,202 people · 2019 | 2/3 | SYR4 |
| Barium | 31.495 µg/L 1.6% of the EPA limit 2000 µg/L Highest in the city: ODESSA PWS · 5,202 people · 2017 | 1/3 | SYR4 |
| Dibromochloromethane | 0.6535 µg/L No EPA limit set Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 31.450000000000003 µg/L — ODESSA PWS · 5,202 people · 2019 | 2/3 | SYR4 |
| Lead | 18.136499999999995 µg/L 121% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2017 | 3/3 | SYR4 |
| Dichloroacetic Acid | 12.6 µg/L No EPA limit set Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2019
Highest in the city: 16.499999999999996 µg/L — ODESSA PWS · 5,202 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 10.719999999999999 µg/L No EPA limit set Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Bromoform | 7.82 µg/L No EPA limit set Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 6.629999999999997 µg/L No EPA limit set Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 6.296 µg/L No EPA limit set Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Chromium | 4.173 µg/L 4.2% of the EPA limit 100 µg/L Highest in the city: ODESSA PWS · 5,202 people · 2017 | 1/3 | SYR4 |
| Monochloroacetic Acid | 4.01 µg/L No EPA limit set Highest in the city: ODESSA PWS · 5,202 people · 2019 | 1/3 | SYR4 |
| Arsenic | 2.7175000000000002 µg/L 27% of the EPA limit 10 µg/L Highest in the city: ODESSA PWS · 5,202 people · 2017 | 1/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LAFAYETTE COUNTY PWSD 1 · 8,250 people · 2025
Highest in the city: 0.0033 mg/L — ODESSA PWS · 5,202 people · 2024 | 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 Odessa
| Supplier | Population served |
|---|---|
| LAFAYETTE COUNTY PWSD 1 | 8,250 |
| ODESSA PWS | 5,202 |
| LAKE LAFAYETTE PWS | 327 |
Frequently asked questions about Odessa tap water
Is Odessa tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Odessa. 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 Odessa?
3 public water suppliers report drinking-water monitoring for Odessa, Missouri to the EPA. Each is listed above with its population served.
What contaminants are in Odessa's water?
The contaminants EPA monitoring detected in Odessa include TTHM, Fluoride, Nitrate-Nitrite, Copper, Chloroform. 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.