What was found in Dorset'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 | 1030 µg/L 10% of the EPA limit 10000 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 1500 µg/L — DORSET COMMUNITY HOUSING · 50 people · 2019 | 3/3 | SYR4 |
| Copper | 506 µg/L 39% of the EPA limit 1300 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2013 | 1/3 | SYR4 |
| Lead | 13.48 µg/L 90% of the EPA limit 15 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019 | 3/3 | SYR4 |
| TTHM | 7.2 µg/L 9% of the EPA limit 80 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 10.51 µg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 2/3 | SYR4 |
| Chloroform | 4.85 µg/L No EPA limit set Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 8.575 µg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1 µg/L 1.7% of the EPA limit 60 µg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 5.5 µg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 2/3 | SYR4 |
| Dichloroacetic Acid | 1 µg/L No EPA limit set Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 3.1 µg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 2/3 | SYR4 |
| Trichloroacetic Acid | 2.4 µg/L No EPA limit set Highest in the city: EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 1/3 | SYR4 |
| Bromodichloromethane | 1.28 µg/L No EPA limit set Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019
Highest in the city: 1.875 µg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.11 pCi/L 22% of the EPA limit 5 pCi/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2018
Highest in the city: 1.501 pCi/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2018 | 2/3 | SYR4 |
| Dibromochloromethane | 0.7950 µg/L No EPA limit set Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019 | 2/3 | SYR4 |
| Bromoform | 0.5000 µg/L No EPA limit set Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: DORSET FIRE DISTRICT 1 · 530 people · 2025
Highest in the city: 0.0126 mg/L — EAST DORSET FIRE DISTRICT 1 · 192 people · 2023 | 3/3 | LCR |
Water suppliers serving Dorset
| Supplier | Population served |
|---|---|
| DORSET FIRE DISTRICT 1 | 530 |
| EAST DORSET FIRE DISTRICT 1 | 192 |
| DORSET COMMUNITY HOUSING | 50 |
Frequently asked questions about Dorset tap water
Is Dorset tap water safe to drink?
EPA testing detected 14 contaminants in the water serving Dorset. 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 Dorset?
3 public water suppliers report drinking-water monitoring for Dorset, Vermont to the EPA. Each is listed above with its population served.
What contaminants are in Dorset's water?
The contaminants EPA monitoring detected in Dorset include Nitrate, Copper, Nitrate-Nitrite, Lead, 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.