Dibromoacetic acid
Danbury Water Department
Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.172 ppb | 32 | 8 | ND - 1.20 ppb |
| 2019 | 0.353 ppb | 32 | 17 | ND - 1.20 ppb |
| 2020 | 0.256 ppb | 32 | 14 | ND - 0.700 ppb |
| 2021 | 0.1000 ppb | 16 | 3 | ND - 0.600 ppb |
| 2022 | ND | 24 | 0 | ND |
| 2023 | ND | 32 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.03 ppb
The EWG Health Guideline of 0.03 ppb for dibromoacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-14 | 211585GE | ND |
| 2018-03-14 | 211587GE | ND |
| 2018-03-14 | 211589GE | ND |
| 2018-03-14 | 211591GE | ND |
| 2018-03-14 | 211599GE | ND |
| 2018-03-15 | 211593GE | ND |
| 2018-03-15 | 211595GE | ND |
| 2018-03-15 | 211597GE | ND |
| 2018-06-19 | 215737GE | ND |
| 2018-06-19 | 215739GE | ND |
| 2018-06-19 | 215743GE | ND |
| 2018-06-19 | 215745GE | 1.20 ppb |
| 2018-06-19 | 215751GE | ND |
| 2018-06-20 | 215747GE | ND |
| 2018-06-20 | 215749GE | ND |
| 2018-06-20 | 215741GE | ND |
| 2018-09-14 | DBP 200505484 | ND |
| 2018-09-14 | DBP 200505486 | 0.500 ppb |
| 2018-09-14 | DBP 200505491 | ND |
| 2018-09-14 | DBP 200505493 | ND |
| 2018-09-14 | DBP 200505495 | ND |
| 2018-09-14 | DBP 200505497 | ND |
| 2018-09-14 | DBP 200505499 | ND |
| 2018-09-17 | DBP 200505658 | ND |
| 2018-12-14 | DBP 200516093 | ND |
| 2018-12-14 | DBP 200516094 | 0.600 ppb |
| 2018-12-14 | DBP 200516095 | 0.600 ppb |
| 2018-12-14 | DBP 200516096 | ND |
| 2018-12-14 | DBP 200516097 | 0.700 ppb |
| 2018-12-14 | DBP 200516098 | 0.600 ppb |
| 2018-12-14 | DBP 200516099 | 0.700 ppb |
| 2018-12-14 | DBP 200516100 | 0.600 ppb |
| 2019-03-14 | DBP 200524760 | ND |
| 2019-03-14 | DBP 200524761 | ND |
| 2019-03-14 | DBP 200524762 | ND |
| 2019-03-14 | DBP 200524763 | ND |
| 2019-03-14 | DBP 200524764 | 0.600 ppb |
| 2019-03-14 | DBP 200524765 | 0.600 ppb |
| 2019-03-14 | DBP 200524766 | 0.700 ppb |
| 2019-03-14 | DBP 200524767 | 0.600 ppb |
| 2019-06-20 | DBP 200537265 | ND |
| 2019-06-20 | DBP 200537266 | 0.600 ppb |
| 2019-06-20 | DBP 200537267 | ND |
| 2019-06-20 | DBP 200537268 | ND |
| 2019-06-20 | DBP 200537269 | 0.500 ppb |
| 2019-06-20 | DBP 200537270 | 0.600 ppb |
| 2019-06-20 | DBP 200537271 | ND |
| 2019-06-20 | DBP 200537272 | 0.500 ppb |
| 2019-09-19 | DBP 200549612 | ND |
| 2019-09-19 | DBP 200549613 | ND |
| 2019-09-19 | DBP 200549615 | 1.20 ppb |
| 2019-09-19 | DBP 200549617 | ND |
| 2019-09-19 | DBP 200549618 | ND |
| 2019-10-11 | DBP 200552503 | ND |
| 2019-10-11 | DBP 200552504 | 0.800 ppb |
| 2019-10-11 | DBP 200552505 | 0.800 ppb |
| 2019-12-19 | DBP 200560926 | ND |
| 2019-12-19 | DBP 200560927 | 0.600 ppb |
| 2019-12-19 | DBP 200560929 | 0.500 ppb |
| 2019-12-19 | DBP 200560930 | 0.500 ppb |
| 2019-12-19 | DBP 200560931 | 0.900 ppb |
| 2019-12-19 | DBP 200560932 | ND |
| 2019-12-19 | DBP 200560934 | 0.500 ppb |
| 2019-12-19 | DBP 200560935 | 0.800 ppb |
| 2020-03-19 | DBP 200569976 | ND |
| 2020-03-19 | DBP 200569977 | 0.500 ppb |
| 2020-03-19 | DBP 200569978 | 0.600 ppb |
| 2020-03-19 | DBP 200569979 | ND |
| 2020-03-19 | DBP 200569980 | 0.700 ppb |
| 2020-03-19 | DBP 200569981 | ND |
| 2020-03-19 | DBP 200569982 | 0.700 ppb |
| 2020-03-19 | DBP 200569983 | 0.600 ppb |
| 2020-06-18 | DBP 200579794 | ND |
| 2020-06-18 | DBP 200579795 | 0.600 ppb |
| 2020-06-18 | DBP 200579796 | 0.500 ppb |
| 2020-06-18 | DBP 200579797 | ND |
| 2020-06-18 | DBP 200579798 | 0.500 ppb |
| 2020-06-18 | DBP 200579799 | 0.500 ppb |
| 2020-06-18 | DBP 200579800 | ND |
| 2020-06-18 | DBP 200579801 | 0.600 ppb |
| 2020-09-17 | DBP 200590661 | ND |
| 2020-09-17 | DBP 200590662 | ND |
| 2020-09-17 | DBP 200590663 | ND |
| 2020-09-17 | DBP 200590664 | ND |
| 2020-09-17 | DBP 200590665 | ND |
| 2020-09-17 | DBP 200590666 | ND |
| 2020-09-17 | DBP 200590667 | ND |
| 2020-09-17 | DBP 200590668 | ND |
| 2020-12-18 | DBP 200601598 | ND |
| 2020-12-18 | DBP 200601599 | 0.500 ppb |
| 2020-12-18 | DBP 200601600 | 0.500 ppb |
| 2020-12-18 | DBP 200601601 | ND |
| 2020-12-18 | DBP 200601602 | 0.700 ppb |
| 2020-12-18 | DBP 200601603 | ND |
| 2020-12-18 | DBP 200601604 | 0.700 ppb |
| 2020-12-18 | DBP 200601605 | ND |
| 2021-03-18 | DBP 200610316 | ND |
| 2021-03-18 | DBP 200610317 | ND |
| 2021-03-18 | DBP 200610318 | ND |
| 2021-03-18 | DBP 200610319 | 0.500 ppb |
| 2021-03-18 | DBP 200610320 | ND |
| 2021-03-18 | DBP 200610321 | ND |
| 2021-03-18 | DBP 200610322 | 0.600 ppb |
| 2021-03-18 | DBP 200610323 | ND |
| 2021-06-17 | DBP 200621341 | ND |
| 2021-06-17 | DBP 200621342 | ND |
| 2021-06-17 | DBP 200621343 | ND |
| 2021-06-17 | DBP 200621344 | ND |
| 2021-06-17 | DBP 200621345 | ND |
| 2021-06-17 | DBP 200621346 | ND |
| 2021-06-17 | DBP 200621347 | ND |
| 2021-06-17 | DBP 200621348 | 0.500 ppb |
| 2022-06-14 | 288297 | ND |
| 2022-06-14 | 288299 | ND |
| 2022-06-14 | 288303 | ND |
| 2022-06-14 | 288305 | ND |
| 2022-06-15 | 288301 | ND |
| 2022-06-15 | 288291 | ND |
| 2022-06-15 | 288293 | ND |
| 2022-06-15 | 288295 | ND |
| 2022-09-14 | 296290 | ND |
| 2022-09-15 | 296292 | ND |
| 2022-09-15 | 296294 | ND |
| 2022-09-15 | 296296 | ND |
| 2022-09-15 | 296298 | ND |
| 2022-09-15 | 296300 | ND |
| 2022-09-15 | 296302 | ND |
| 2022-09-15 | 296308 | ND |
| 2022-12-13 | 303035 | ND |
| 2022-12-13 | 303037 | ND |
| 2022-12-13 | 303039 | ND |
| 2022-12-13 | 303028 | ND |
| 2022-12-13 | 303031 | ND |
| 2022-12-14 | 303033 | ND |
| 2022-12-15 | 303024 | ND |
| 2022-12-15 | 303026 | ND |
| 2023-03-06 | 307813 | ND |
| 2023-03-07 | 307811 | ND |
| 2023-03-07 | 307812 | ND |
| 2023-03-07 | 307817 | ND |
| 2023-03-07 | 307818 | ND |
| 2023-03-07 | 307814 | ND |
| 2023-03-07 | 307816 | ND |
| 2023-03-08 | 307815 | ND |
| 2023-06-06 | N3F0423-01 | ND |
| 2023-06-06 | N3F0423-03 | ND |
| 2023-06-06 | N3F0423-06 | ND |
| 2023-06-06 | N3F0423-08 | ND |
| 2023-06-07 | N3F0423-07 | ND |
| 2023-06-07 | N3F0423-04 | ND |
| 2023-06-07 | N3F0423-02 | ND |
| 2023-06-08 | N3F0423-05 | ND |
| 2023-09-12 | CO99982 | ND |
| 2023-09-12 | CO99983 | ND |
| 2023-09-12 | CO99989 | ND |
| 2023-09-13 | CO99986 | ND |
| 2023-09-13 | CO99987 | ND |
| 2023-09-13 | CO99988 | ND |
| 2023-09-14 | CO99984 | ND |
| 2023-09-14 | CO99985 | ND |
| 2023-12-11 | CP68213 | ND |
| 2023-12-12 | CP68216 | ND |
| 2023-12-12 | CP68217 | ND |
| 2023-12-12 | CP68218 | ND |
| 2023-12-12 | CP68214 | ND |
| 2023-12-12 | CP68211 | ND |
| 2023-12-12 | CP68212 | ND |
| 2023-12-13 | CP68215 | ND |