Bromodichloromethane
Aquarion Water Company of Connecticut - Greenwich System
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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 | 14.5 ppb | 33 | 33 | 6.00 ppb - 22.0 ppb |
| 2019 | 15.0 ppb | 34 | 34 | 4.60 ppb - 21.0 ppb |
| 2020 | 11.2 ppb | 34 | 34 | 6.00 ppb - 18.0 ppb |
| 2021 | 11.9 ppb | 34 | 34 | 6.70 ppb - 16.0 ppb |
| 2022 | 11.0 ppb | 37 | 37 | 5.30 ppb - 15.0 ppb |
| 2023 | 11.6 ppb | 37 | 37 | 6.00 ppb - 19.0 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was based on 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 |
|---|---|---|
| 2018-02-06 | 201801639-DBP | 12.0 ppb |
| 2018-02-06 | 201801636-DBP | 11.0 ppb |
| 2018-02-06 | 201801640-DBP | 9.00 ppb |
| 2018-02-06 | 201801638-DBP | 10.00 ppb |
| 2018-02-06 | 201801637-DBP | 12.0 ppb |
| 2018-02-06 | 201801642-DBP | 7.00 ppb |
| 2018-02-06 | 201801641-DBP | 9.00 ppb |
| 2018-02-06 | 201801643-DBP | 6.00 ppb |
| 2018-04-02 | 201803873-VOC1 | 9.40 ppb |
| 2018-05-15 | 201806760-DBP | 16.0 ppb |
| 2018-05-15 | 201806754-DBP | 16.0 ppb |
| 2018-05-15 | 201806757-DBP | 15.0 ppb |
| 2018-05-15 | 201806758-DBP | 14.0 ppb |
| 2018-05-15 | 201806755-DBP | 16.0 ppb |
| 2018-05-15 | 201806756-DBP | 13.0 ppb |
| 2018-05-15 | 201806753-DBP | 12.0 ppb |
| 2018-05-15 | 201806759-DBP | 14.0 ppb |
| 2018-08-07 | 201811788-DBP | 16.0 ppb |
| 2018-08-07 | 201811782-DBP | 18.0 ppb |
| 2018-08-07 | 201811785-DBP | 13.0 ppb |
| 2018-08-07 | 201811786-DBP | 17.0 ppb |
| 2018-08-07 | 201811784-DBP | 18.0 ppb |
| 2018-08-07 | 201811783-DBP | 18.0 ppb |
| 2018-08-07 | 201811781-DBP | 22.0 ppb |
| 2018-08-07 | 201811787-DBP | 13.0 ppb |
| 2018-11-05 | 201817092-DBP | 19.0 ppb |
| 2018-11-05 | 201817098-DBP | 18.0 ppb |
| 2018-11-05 | 201817094-DBP | 21.0 ppb |
| 2018-11-05 | 201817095-DBP | 13.0 ppb |
| 2018-11-05 | 201817099-DBP | 17.0 ppb |
| 2018-11-05 | 201817093-DBP | 18.0 ppb |
| 2018-11-05 | 201817096-DBP | 17.0 ppb |
| 2018-11-05 | 201817097-DBP | 18.0 ppb |
| 2019-02-04 | 201901595-DBP | 7.00 ppb |
| 2019-02-04 | 201901591-DBP | 12.0 ppb |
| 2019-02-04 | 201901593-DBP | 12.0 ppb |
| 2019-02-04 | 201901592-DBP | 15.0 ppb |
| 2019-02-04 | 201901597-DBP | 15.0 ppb |
| 2019-02-04 | 201901596-DBP | 11.0 ppb |
| 2019-02-04 | 201901598-DBP | 9.00 ppb |
| 2019-02-04 | 201901594-DBP | 15.0 ppb |
| 2019-04-01 | 201904114-VOC1 | 12.4 ppb |
| 2019-04-01 | 201904109-VOC1 | 4.60 ppb |
| 2019-05-06 | 201906159-DBP | 20.0 ppb |
| 2019-05-06 | 201906128-DBP | 14.0 ppb |
| 2019-05-06 | 201906161-DBP | 21.0 ppb |
| 2019-05-06 | 201906158-DBP | 20.0 ppb |
| 2019-05-06 | 201906129-DBP | 18.0 ppb |
| 2019-05-06 | 201906130-DBP | 17.0 ppb |
| 2019-05-06 | 201906160-DBP | 18.0 ppb |
| 2019-05-06 | 201906127-DBP | 14.0 ppb |
| 2019-08-05 | 201912209-DBP | 16.0 ppb |
| 2019-08-05 | 201912210-DBP | 17.0 ppb |
| 2019-08-05 | 201912208-DBP | 13.0 ppb |
| 2019-08-05 | 201912207-DBP | 16.0 ppb |
| 2019-08-06 | 201912345-DBP | 16.0 ppb |
| 2019-08-06 | 201912346-DBP | 18.0 ppb |
| 2019-08-06 | 201912348-DBP | 16.0 ppb |
| 2019-08-06 | 201912347-DBP | 17.0 ppb |
| 2019-11-04 | 201918072-DBP | 14.0 ppb |
| 2019-11-04 | 201918101-DBP | 18.0 ppb |
| 2019-11-04 | 201918073-DBP | 10.00 ppb |
| 2019-11-04 | 201918104-DBP | 19.0 ppb |
| 2019-11-04 | 201918103-DBP | 17.0 ppb |
| 2019-11-04 | 201918074-DBP | 14.0 ppb |
| 2019-11-04 | 201918075-DBP | 14.0 ppb |
| 2019-11-04 | 201918102-DBP | 20.0 ppb |
| 2020-02-04 | 202001707-DBP | 6.00 ppb |
| 2020-02-04 | 202001742-DBP | 12.0 ppb |
| 2020-02-04 | 202001741-DBP | 10.00 ppb |
| 2020-02-04 | 202001708-DBP | 10.00 ppb |
| 2020-02-04 | 202001709-DBP | 10.00 ppb |
| 2020-02-04 | 202001739-DBP | 10.00 ppb |
| 2020-02-04 | 202001740-DBP | 11.0 ppb |
| 2020-02-04 | 202001706-DBP | 7.00 ppb |
| 2020-04-06 | 202004726-VOC1 | 7.00 ppb |
| 2020-04-07 | 202004860-VOC1 | 14.5 ppb |
| 2020-05-04 | 202006208-DBP | 9.00 ppb |
| 2020-05-04 | 202006207-DBP | 11.0 ppb |
| 2020-05-04 | 202006210-DBP | 10.00 ppb |
| 2020-05-04 | 202006211-DBP | 9.00 ppb |
| 2020-05-05 | 202006307-DBP | 8.00 ppb |
| 2020-05-05 | 202006310-DBP | 8.00 ppb |
| 2020-05-05 | 202006309-DBP | 10.00 ppb |
| 2020-05-05 | 202006308-DBP | 7.00 ppb |
| 2020-08-03 | 202011707-DBP | 18.0 ppb |
| 2020-08-03 | 202011708-DBP | 16.0 ppb |
| 2020-08-03 | 202011706-DBP | 13.0 ppb |
| 2020-08-03 | 202011704-DBP | 16.0 ppb |
| 2020-08-03 | 202011705-DBP | 14.0 ppb |
| 2020-08-04 | 202011845-DBP | 15.0 ppb |
| 2020-08-04 | 202011847-DBP | 10.00 ppb |
| 2020-08-04 | 202011846-DBP | 15.0 ppb |
| 2020-11-02 | 202017838-DBP | 10.00 ppb |
| 2020-11-02 | 202017836-DBP | 13.0 ppb |
| 2020-11-02 | 202017840-DBP | 12.0 ppb |
| 2020-11-02 | 202017837-DBP | 11.0 ppb |
| 2020-11-02 | 202017839-DBP | 10.00 ppb |
| 2020-11-03 | 202017924-DBP | 13.0 ppb |
| 2020-11-03 | 202017923-DBP | 12.0 ppb |
| 2020-11-03 | 202017922-DBP | 13.0 ppb |
| 2021-02-02 | 202101414-DBP | 9.00 ppb |
| 2021-02-02 | 202101413-DBP | 8.00 ppb |
| 2021-02-02 | 202101415-DBP | 9.00 ppb |
| 2021-02-02 | 202101416-DBP | 9.00 ppb |
| 2021-02-03 | 202101513-DBP | 9.00 ppb |
| 2021-02-03 | 202101512-DBP | 8.00 ppb |
| 2021-02-03 | 202101511-DBP | 15.0 ppb |
| 2021-02-03 | 202101510-DBP | 10.00 ppb |
| 2021-04-05 | 202104315-VOC1 | 10.6 ppb |
| 2021-05-03 | 202106144-DBP | 14.0 ppb |
| 2021-05-03 | 202106143-DBP | 14.0 ppb |
| 2021-05-03 | 202106145-DBP | 13.0 ppb |
| 2021-05-03 | 202106141-DBP | 9.00 ppb |
| 2021-05-04 | 202106218-DBP | 14.0 ppb |
| 2021-05-04 | 202106214-DBP | 15.0 ppb |
| 2021-05-04 | 202106219-DBP | 16.0 ppb |
| 2021-05-04 | 202106217-DBP | 9.00 ppb |
| 2021-05-10 | 202106584-VOC1 | 6.70 ppb |
| 2021-08-02 | 202112020-DBP | 13.0 ppb |
| 2021-08-02 | 202112018-DBP | 15.0 ppb |
| 2021-08-02 | 202112016-DBP | 11.0 ppb |
| 2021-08-02 | 202112021-DBP | 14.0 ppb |
| 2021-08-02 | 202112019-DBP | 13.0 ppb |
| 2021-08-03 | 202112160-DBP | 15.0 ppb |
| 2021-08-03 | 202112156-DBP | 15.0 ppb |
| 2021-08-03 | 202112159-DBP | 16.0 ppb |
| 2021-11-01 | 202117929-DBP | 10.00 ppb |
| 2021-11-01 | 202117931-DBP | 11.0 ppb |
| 2021-11-01 | 202117932-DBP | 11.0 ppb |
| 2021-11-01 | 202117933-DBP | 13.0 ppb |
| 2021-11-01 | 202117934-DBP | 13.0 ppb |
| 2021-11-02 | 202118000-DBP | 13.0 ppb |
| 2021-11-02 | 202118003-DBP | 10.00 ppb |
| 2021-11-02 | 202118004-DBP | 12.0 ppb |
| 2022-02-08 | 202202166-DBP | 10.00 ppb |
| 2022-02-08 | 202202167-DBP | 11.0 ppb |
| 2022-02-08 | 202202168-DBP | 8.00 ppb |
| 2022-02-08 | 202202169-DBP | 7.00 ppb |
| 2022-02-08 | 202202170-DBP | 11.0 ppb |
| 2022-02-08 | 202202171-DBP | 12.0 ppb |
| 2022-02-08 | 202202172-DBP | 11.0 ppb |
| 2022-02-08 | 202202173-DBP | 10.00 ppb |
| 2022-02-08 | 202202174-DBP | 13.0 ppb |
| 2022-04-05 | 202204953-VOC1 | 8.70 ppb |
| 2022-05-02 | 202206668-DBP | 12.0 ppb |
| 2022-05-02 | 202206669-DBP | 11.0 ppb |
| 2022-05-02 | 202206670-DBP | 8.00 ppb |
| 2022-05-02 | 202206671-DBP | 10.00 ppb |
| 2022-05-02 | 202206672-DBP | 12.0 ppb |
| 2022-05-02 | 202206673-DBP | 12.0 ppb |
| 2022-05-02 | 202206674-DBP | 10.00 ppb |
| 2022-05-02 | 202206675-DBP | 10.00 ppb |
| 2022-05-02 | 202206676-DBP | 11.0 ppb |
| 2022-05-16 | 202207710-VOC1 | 5.30 ppb |
| 2022-08-01 | 202213190-DBP | 14.0 ppb |
| 2022-08-01 | 202213191-DBP | 12.0 ppb |
| 2022-08-01 | 202213193-DBP | 13.0 ppb |
| 2022-08-01 | 202213194-DBP | 14.0 ppb |
| 2022-08-02 | 202213348-DBP | 11.0 ppb |
| 2022-08-02 | 202213349-DBP | 15.0 ppb |
| 2022-08-02 | 202213350-DBP | 14.0 ppb |
| 2022-08-02 | 202213351-DBP | 13.0 ppb |
| 2022-08-09 | 202213983-DBP | 13.0 ppb |
| 2022-11-07 | 202220347-DBP | 11.0 ppb |
| 2022-11-07 | 202220348-DBP | 11.0 ppb |
| 2022-11-07 | 202220349-DBP | 9.00 ppb |
| 2022-11-07 | 202220350-DBP | 12.0 ppb |
| 2022-11-07 | 202220351-DBP | 9.00 ppb |
| 2022-11-08 | 202220545-DBP | 11.0 ppb |
| 2022-11-08 | 202220463-DBP | 11.0 ppb |
| 2022-11-08 | 202220465-DBP | 11.0 ppb |
| 2023-02-06 | 202301818-DBP | 9.00 ppb |
| 2023-02-06 | 202301819-DBP | 11.0 ppb |
| 2023-02-06 | 202301820-DBP | 8.00 ppb |
| 2023-02-06 | 202301821-DBP | 7.00 ppb |
| 2023-02-06 | 202301822-DBP | 8.00 ppb |
| 2023-02-06 | 202301823-DBP | 8.00 ppb |
| 2023-02-06 | 202301824-DBP | 9.00 ppb |
| 2023-02-06 | 202301825-DBP | 7.00 ppb |
| 2023-04-03 | 202304838-VOC1 | 9.70 ppb |
| 2023-05-01 | 202306846-DBP | 9.00 ppb |
| 2023-05-01 | 202306848-DBP | 6.00 ppb |
| 2023-05-01 | 202306849-DBP | 7.00 ppb |
| 2023-05-01 | 202306850-DBP | 12.0 ppb |
| 2023-05-01 | 202306851-DBP | 11.0 ppb |
| 2023-05-02 | 202307059-DBP | 13.0 ppb |
| 2023-05-02 | 202307060-DBP | 10.00 ppb |
| 2023-05-02 | 202307062-DBP | 11.0 ppb |
| 2023-05-19 | 202308624-DBP | 8.00 ppb |
| 2023-06-06 | 202309335-VOC1 | 6.00 ppb |
| 2023-08-07 | 202313827-DBP | 17.0 ppb |
| 2023-08-07 | 202313829-DBP | 12.0 ppb |
| 2023-08-07 | 202313831-DBP | 16.0 ppb |
| 2023-08-07 | 202313832-DBP | 17.0 ppb |
| 2023-08-08 | 202313971-DBP | 16.0 ppb |
| 2023-08-08 | 202313972-DBP | 16.0 ppb |
| 2023-08-08 | 202313974-DBP | 15.0 ppb |
| 2023-08-16 | 202314763-DBP | 13.0 ppb |
| 2023-08-16 | 202314764-DBP | 16.0 ppb |
| 2023-11-06 | 202320411-DBP | 12.0 ppb |
| 2023-11-06 | 202320413-DBP | 12.0 ppb |
| 2023-11-06 | 202320414-DBP | 11.0 ppb |
| 2023-11-06 | 202320415-DBP | 11.0 ppb |
| 2023-11-06 | 202320416-DBP | 17.0 ppb |
| 2023-11-07 | 202320577-DBP | 19.0 ppb |
| 2023-11-07 | 202320578-DBP | 16.0 ppb |
| 2023-11-07 | 202320580-DBP | 16.0 ppb |
| 2023-11-16 | 202321414-DBP | 8.00 ppb |