What was found in Carmel'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 | 1060.5 µg/L 11% of the EPA limit 10000 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019 | 2/3 | SYR4 |
| Fluoride | 965.3 µg/L 24% of the EPA limit 4000 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019 | 2/3 | SYR4 |
| Copper | 186.4 µg/L 14% of the EPA limit 1300 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2017
Highest in the city: 711.45 µg/L — CARMEL CLAY WATER · 393 people · 2019 | 3/3 | SYR4 |
| Barium | 166 µg/L 8.3% of the EPA limit 2000 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019
Highest in the city: 342.045 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| Nitrate-Nitrite | 177.6 µg/L 1.8% of the EPA limit 10000 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2013
Highest in the city: 321 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| TTHM | 42.055 µg/L 53% of the EPA limit 80 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019
Highest in the city: 73.48 µg/L — CARMEL CLAY WATER · 393 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 19.675 µg/L 33% of the EPA limit 60 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019
Highest in the city: 67.005 µg/L — CARMEL CLAY WATER · 393 people · 2019 | 3/3 | SYR4 |
| Chloroform | 7 µg/L No EPA limit set Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2015
Highest in the city: 18.24 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| Lead | 6.7 µg/L 45% of the EPA limit 15 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2017
Highest in the city: 13.776 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2018 | 3/3 | SYR4 |
| Lithium | 9.57 µg/L No EPA limit set Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2023 | 1/3 | UCMR-5 |
| Bromodichloromethane | 9.185 µg/L No EPA limit set Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2015 | 2/3 | SYR4 |
| Dibromochloromethane | 6.76 µg/L No EPA limit set Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2015 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.495 pCi/L 43% of the EPA limit 15 pCi/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2014 | 2/3 | SYR4 |
| Combined Uranium | 5.16 µg/L 17% of the EPA limit 30 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2014 | 2/3 | SYR4 |
| Selenium | 4.14 µg/L 8.3% of the EPA limit 50 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019 | 1/3 | SYR4 |
| Arsenic | 1.78 µg/L 18% of the EPA limit 10 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019
Highest in the city: 2.3 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| Antimony, Total | 2.075 µg/L 35% of the EPA limit 6 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.805 pCi/L 36% of the EPA limit 5 pCi/L Highest in the city: CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 1/3 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2015
Highest in the city: 1.8 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019
Highest in the city: 1.2 µg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 people · 2019 | 2/3 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0029 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: CARMEL WATER DEPARTMENT · 99,927 people · 2023
Highest in the city: 0.0031 mg/L — CITIZENS WATER OF WESTFIELD, LLC · 61,493 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 Carmel
| Supplier | Population served |
|---|---|
| CARMEL WATER DEPARTMENT | 99,927 |
| CITIZENS WATER OF WESTFIELD, LLC | 61,493 |
| CARMEL CLAY WATER | 393 |
Frequently asked questions about Carmel tap water
Is Carmel tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Carmel. 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 Carmel?
3 public water suppliers report drinking-water monitoring for Carmel, Indiana to the EPA. Each is listed above with its population served.
What contaminants are in Carmel's water?
The contaminants EPA monitoring detected in Carmel include Nitrate, Fluoride, Copper, Barium, Nitrate-Nitrite. 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.