What was found in Concord'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 | 6000 µg/L 60% of the EPA limit 10000 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Fluoride | 648 µg/L 16% of the EPA limit 4000 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| TTHM | 48.3 µg/L 60% of the EPA limit 80 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Copper | 44 µg/L 3.4% of the EPA limit 1300 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Chloroform | 41.45 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 27.475 µg/L 46% of the EPA limit 60 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 15.65 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 14 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Barium | 6.545 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 5.9 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Lead | 4 µg/L 27% of the EPA limit 15 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2017 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.125 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.1 µg/L 52% of the EPA limit 6 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.95 µg/L 2% of the EPA limit 100 µg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.71 pCi/L 11% of the EPA limit 15 pCi/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2016 | 1/1 | SYR4 |
| Dibromochloromethane | 0.8490 µg/L No EPA limit set Main supplier: CONCORD WATER DEPT · 44,215 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.8200 pCi/L 16% of the EPA limit 5 pCi/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2016 | 1/1 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: CONCORD WATER DEPT · 44,215 people · 2023 | 1/1 | LCR |
Water suppliers serving Concord
| Supplier | Population served |
|---|---|
| CONCORD WATER DEPT | 44,215 |
Frequently asked questions about Concord tap water
Is Concord tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Concord. 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 Concord?
1 public water supplier report drinking-water monitoring for Concord, New Hampshire to the EPA. Each is listed above with its population served.
What contaminants are in Concord's water?
The contaminants EPA monitoring detected in Concord include Nitrate, Fluoride, TTHM, 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.