Bromoform
Candlewood Park Water District
Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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 | 1.09 ppb | 2 | 2 | 0.851 ppb - 1.33 ppb |
| 2019 | ND | 2 | 0 | ND |
| 2020 | 0.897 ppb | 5 | 5 | 0.815 ppb - 0.997 ppb |
| 2021 | 0.848 ppb | 5 | 4 | ND - 1.40 ppb |
| 2022 | 0.344 ppb | 5 | 3 | ND - 0.611 ppb |
| 2023 | 0.333 ppb | 5 | 2 | ND - 0.960 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.5 ppb
The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-05 | 420-142192-3-DBP2 | 0.851 ppb |
| 2018-09-05 | 420-142192-2-DBP2 | 1.33 ppb |
| 2019-09-05 | 420-159766-1-DBP2 | ND |
| 2019-09-05 | 420-159766-2-DBP2 | ND |
| 2020-01-27 | AW01792-DBP2 | 0.866 ppb |
| 2020-08-27 | AW16651-DBP2 | 0.943 ppb |
| 2020-08-27 | AW16649-DBP2 | 0.997 ppb |
| 2020-09-09 | 420-180398-1-DBP2 | 0.866 ppb |
| 2020-09-09 | 420-180398-2-DBP2 | 0.815 ppb |
| 2021-04-21 | AX07611-DBP2 | 0.820 ppb |
| 2021-04-21 | AX07609-DBP2 | 0.819 ppb |
| 2021-09-07 | 420-205893-2-DBP2 | 1.20 ppb |
| 2021-09-07 | 420-205893-1-DBP2 | ND |
| 2021-10-06 | AX20377-DBP2 | 1.40 ppb |
| 2022-06-16 | AY10393-DBP2 | 0.611 ppb |
| 2022-06-16 | AY10389-DBP2 | 0.588 ppb |
| 2022-09-06 | 420-234125-2-DBP2 | 0.520 ppb |
| 2022-09-06 | 420-234125-3-DBP2 | ND |
| 2022-12-08 | AY21972-DBP2 | ND |
| 2023-06-07 | AZ10248-DBP2 | ND |
| 2023-06-07 | AZ10246-DBP2 | ND |
| 2023-09-05 | CO89992-DBP2 | 0.960 ppb |
| 2023-09-05 | CO89993-DBP2 | ND |
| 2023-12-18 | AZ22799-DBP2 | 0.706 ppb |