National Drinking Water Database
Dibromomethane in Massachusetts
Dibromomethane is an unregulated byproduct of tap water disinfection and a manufactured chemical used in chemical synthesis and as an ingredient in fire extinguishing fluids.
The Most Polluted Communities in Massachusetts
12 water utilities reported detecting Dibromomethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Dibromomethane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Andover Water Dept Andover, MA | 31,344 | 2 of 3 | 4.37 ppb (0 to 7.2 ppb) |
| 2 | Cambridge Water Department Cambridge, MA | 101,355 | 1 of 1 | 3.5 ppb (3.5 ppb) |
| 3 | Hingham/Hull Aquarion Water Co MA | 43,736 | 1 of 2 | 0.83 ppb (0 to 1.65 ppb) |
| 4 | Reading Water Dept. Reading, MA | 23,693 | 3 of 11 | 0.8 ppb (0 to 7 ppb) |
| 5 | Hanover Water Dept Hanover, MA | 13,727 | 2 of 2 | 0.75 ppb (0.7 to 0.8 ppb) |
| 6 | Aquarion Water Company: Millbury Millbury, MA | 8,906 | 4 of 5 | 0.72 ppb (0 to 1.4 ppb) |
| 7 | Ipswich Dpu Water Dept Ipswich, MA | 16,348 | 1 of 8 | 0.59 ppb (0 to 4.75 ppb) |
| 8 | Needham Water Dept Needham, MA | 30,115 | 1 of 3 | 0.4 ppb (0 to 1.2 ppb) |
| 9 | Harvard Water Department Harvard, MA | 970 | 1 of 3 | 0.27 ppb (0 to 0.8 ppb) |
| 10 | Millis Water Dept MA | 8,019 | 1 of 7 | 0.24 ppb (0 to 1.7 ppb) |
Health Based Limits for Dibromomethane
There are no health based standards that EWG is using for this chemical
Violation Summary for Dibromomethane in Massachusetts
There are no violations reported for this contaminant in Massachusetts