What was found in Jackson'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-Nitrite | 124.5 µg/L 1.2% of the EPA limit 10000 µg/L Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 3230 µg/L — COUNTRY VILLAGE ESTATES SUBDIVISION · 54 people · 2019 | 4/4 | SYR4 |
| Fluoride | 1342.5 µg/L 34% of the EPA limit 4000 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 4/4 | SYR4 |
| Copper | 578.25 µg/L 44% of the EPA limit 1300 µg/L Main supplier: JACKSON PWS · 15,000 people · 2019 | 4/4 | SYR4 |
| Barium | 150 µg/L 7.5% of the EPA limit 2000 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 4/4 | SYR4 |
| TTHM | 8.095 µg/L 10% of the EPA limit 80 µg/L Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 27.22 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Lithium | 19.5 µg/L No EPA limit set Main supplier: JACKSON PWS · 15,000 people · 2025 | 1/4 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 1.1 µg/L 1.8% of the EPA limit 60 µg/L Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 14.41 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Chloroform | 13.6975 µg/L No EPA limit set Highest in the city: CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Dichloroacetic Acid | 8.516 µg/L No EPA limit set Highest in the city: CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 1.2125 µg/L No EPA limit set Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 8.0825 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Chromium | 7.435 µg/L 7.4% of the EPA limit 100 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 4/4 | SYR4 |
| Lead | 4.926 µg/L 33% of the EPA limit 15 µg/L Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 7.371 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 6.18 µg/L No EPA limit set Highest in the city: COUNTRY VILLAGE ESTATES SUBDIVISION · 54 people · 2017 | 2/4 | SYR4 |
| Dibromochloromethane | 3.242 µg/L No EPA limit set Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 4.7 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 3/4 | SYR4 |
| Bromoform | 3.608 µg/L No EPA limit set Main supplier: JACKSON PWS · 15,000 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 1.3375 µg/L No EPA limit set Main supplier: JACKSON PWS · 15,000 people · 2019
Highest in the city: 2.358 µg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 people · 2019 | 2/4 | SYR4 |
| Arsenic | 1.76 µg/L 18% of the EPA limit 10 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 1/4 | SYR4 |
| Vinyl Chloride | 0.6800 µg/L 34% of the EPA limit 2 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 1/4 | SYR4 |
| Xylenes, Total | 0.6500 µg/L 0% of the EPA limit 10000 µg/L Main supplier: JACKSON PWS · 15,000 people · 2018 | 2/4 | SYR4 |
| Lead | 0.0010 mg/L 6.9% of the EPA limit 0.0150 mg/L Main supplier: JACKSON PWS · 15,000 people · 2025
Highest in the city: 0.0054 mg/L — CAPE PERRY COUNTY PWSD 1 SOUTH · 8,545 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 Jackson
| Supplier | Population served |
|---|---|
| JACKSON PWS | 15,000 |
| CAPE PERRY COUNTY PWSD 1 SOUTH | 8,545 |
| CAROLINA OAKS PLANTATION | 126 |
| COUNTRY VILLAGE ESTATES SUBDIVISION | 54 |
Frequently asked questions about Jackson tap water
Is Jackson tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Jackson. 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 Jackson?
4 public water suppliers report drinking-water monitoring for Jackson, Missouri to the EPA. Each is listed above with its population served.
What contaminants are in Jackson's water?
The contaminants EPA monitoring detected in Jackson include Nitrate-Nitrite, Fluoride, Copper, 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.