What was found in Grant City'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 |
|---|---|---|---|
| Chlorite | 830 µg/L 83% of the EPA limit 1000 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 600 µg/L 6% of the EPA limit 10000 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Copper | 342.2 µg/L 26% of the EPA limit 1300 µg/L Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2018 | 3/3 | SYR4 |
| Fluoride | 150 µg/L 3.8% of the EPA limit 4000 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| TTHM | 84.885 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 130.8 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Chloroform | 70.45 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 109 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Barium | 82.1 µg/L 4.1% of the EPA limit 2000 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 73.825 µg/L 123% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 75.215 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 39.2 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 41.355 µg/L — GRANT CITY PWS · 850 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 30.07 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 33.545 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 20.41 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 11.555 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 17.4 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 11.64 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 14.4 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Lead | 8.4045 µg/L 56% of the EPA limit 15 µg/L Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2018 | 2/3 | SYR4 |
| Dibromochloromethane | 3.5975 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019 | 3/3 | SYR4 |
| Atrazine | 3.082 µg/L 103% of the EPA limit, at the 95th percentile of samples — 3 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 2.1065 µg/L No EPA limit set Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2019
Highest in the city: 2.246 µg/L — NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 3/3 | SYR4 |
| Chromium | 1.8415 µg/L 1.8% of the EPA limit 100 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Arsenic | 1.4685 µg/L 15% of the EPA limit 10 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Lasso | 0.7500 µg/L 38% of the EPA limit 2 µg/L Highest in the city: NODAWAY CO EAST PWSD 1 · 25 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0022 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: WORTH COUNTY PWSD 1 · 1,497 people · 2024
Highest in the city: 0.0044 mg/L — GRANT CITY PWS · 850 people · 2023 | 2/3 | 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 Grant City
| Supplier | Population served |
|---|---|
| WORTH COUNTY PWSD 1 | 1,497 |
| GRANT CITY PWS | 850 |
| NODAWAY CO EAST PWSD 1 | 25 |
Frequently asked questions about Grant City tap water
Is Grant City tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Grant City. 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 Grant City?
3 public water suppliers report drinking-water monitoring for Grant City, Missouri to the EPA. Each is listed above with its population served.
What contaminants are in Grant City's water?
The contaminants EPA monitoring detected in Grant City include Chlorite, Nitrate-Nitrite, Copper, Fluoride, 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.