Dibromochloromethane
Lakehaven Utility District
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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 | 0.246 ppb | 24 | 5 | ND - 1.50 ppb |
| 2019 | 0.664 ppb | 26 | 13 | ND - 2.60 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.0827 ppb | 22 | 3 | ND - 0.670 ppb |
| 2022 | 0.421 ppb | 18 | 4 | ND - 2.50 ppb |
| 2023 | 0.617 ppb | 16 | 10 | ND - 1.40 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 |
|---|---|---|
| 2018-01-03 | 1.40 ppb | |
| 2018-01-03 | 1.30 ppb | |
| 2018-01-03 | ND | |
| 2018-01-03 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-14 | ND | |
| 2018-05-15 | ND | |
| 2018-06-19 | ND | |
| 2018-07-09 | ND | |
| 2018-07-09 | ND | |
| 2018-07-09 | ND | |
| 2018-07-09 | ND | |
| 2018-07-10 | ND | |
| 2018-07-10 | ND | |
| 2018-10-08 | ND | |
| 2018-10-08 | 1.000 ppb | |
| 2018-10-08 | 1.50 ppb | |
| 2018-10-08 | 0.710 ppb | |
| 2019-01-09 | 0.620 ppb | |
| 2019-01-09 | ND | |
| 2019-01-09 | 0.630 ppb | |
| 2019-01-09 | 1.20 ppb | |
| 2019-04-11 | 2.30 ppb | |
| 2019-04-11 | ND | |
| 2019-04-11 | 2.40 ppb | |
| 2019-04-11 | 1.80 ppb | |
| 2019-06-05 | ND | |
| 2019-06-05 | ND | |
| 2019-06-12 | ND | |
| 2019-06-12 | ND | |
| 2019-07-09 | 0.640 ppb | |
| 2019-07-09 | 0.650 ppb | |
| 2019-07-09 | 0.520 ppb | |
| 2019-07-09 | 0.690 ppb | |
| 2019-07-23 | ND | |
| 2019-07-31 | ND | |
| 2019-08-27 | ND | |
| 2019-09-03 | ND | |
| 2019-09-04 | ND | |
| 2019-10-01 | 2.60 ppb | |
| 2019-10-01 | ND | |
| 2019-10-01 | 2.60 ppb | |
| 2019-10-01 | 0.620 ppb | |
| 2019-10-30 | ND | |
| 2021-01-13 | 4069472 | ND |
| 2021-01-13 | 4069471 | ND |
| 2021-01-13 | 4069469 | ND |
| 2021-01-13 | 4069470 | ND |
| 2021-04-14 | 4107060 | ND |
| 2021-04-14 | 4107063 | ND |
| 2021-04-14 | 4107061 | ND |
| 2021-04-14 | 4107062 | ND |
| 2021-05-25 | 4122783 | ND |
| 2021-05-25 | 4122783 | ND |
| 2021-05-25 | 4122783 | ND |
| 2021-07-07 | 4149118 | ND |
| 2021-07-07 | 4149124 | ND |
| 2021-07-07 | 4149120 | ND |
| 2021-07-07 | 4149122 | ND |
| 2021-07-13 | 4149400 | ND |
| 2021-07-13 | 4149400 | ND |
| 2021-09-14 | 4178936 | ND |
| 2021-10-13 | 4198505 | 0.640 ppb |
| 2021-10-13 | 4198507 | ND |
| 2021-10-13 | 4198506 | 0.670 ppb |
| 2021-10-13 | 4198508 | 0.510 ppb |
| 2022-01-04 | 4286981 | ND |
| 2022-01-04 | 4286982 | 2.00 ppb |
| 2022-01-04 | 4286983 | ND |
| 2022-01-04 | 4286984 | ND |
| 2022-01-25 | 4234480 | ND |
| 2022-01-25 | 4248102 | ND |
| 2022-04-06 | 4269252 | ND |
| 2022-04-06 | 4269264 | ND |
| 2022-04-06 | 4269248 | ND |
| 2022-04-06 | 4269257 | ND |
| 2022-07-07 | 4323683 | ND |
| 2022-07-07 | 4323682 | ND |
| 2022-07-07 | 4323680 | ND |
| 2022-07-07 | 4323681 | ND |
| 2022-10-11 | 4368449 | 2.50 ppb |
| 2022-10-11 | 4368451 | 0.570 ppb |
| 2022-10-11 | 4368450 | ND |
| 2022-10-11 | 4368448 | 2.50 ppb |
| 2023-02-22 | 4416391 | 1.000 ppb |
| 2023-02-22 | 4416392 | 1.40 ppb |
| 2023-02-22 | 4416393 | ND |
| 2023-02-22 | 4416390 | 0.960 ppb |
| 2023-04-06 | 4444319 | ND |
| 2023-04-06 | 4444320 | 0.770 ppb |
| 2023-04-06 | 4444321 | ND |
| 2023-04-06 | 4444318 | ND |
| 2023-08-22 | 4547302 | 1.10 ppb |
| 2023-08-22 | 4547301 | 1.000 ppb |
| 2023-08-22 | 4547303 | ND |
| 2023-08-22 | 4547304 | ND |
| 2023-10-03 | 4525838 | 0.550 ppb |
| 2023-10-03 | 4525839 | 0.590 ppb |
| 2023-10-03 | 4525837 | 1.30 ppb |
| 2023-10-03 | 4525836 | 1.20 ppb |