Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Bellingham Water Division

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.

 

165

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0636 ppb334ND - 0.600 ppb
20190.0788 ppb335ND - 0.600 ppb
2020N/A00N/A
20210.245 ppb3313ND - 0.780 ppb
20220.192 ppb3311ND - 0.700 ppb
20230.0670 ppb334ND - 0.630 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
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-07-31ND
2018-08-17ND
2018-08-17ND
2018-08-170.500 ppb
2018-08-170.500 ppb
2018-08-17ND
2018-08-170.600 ppb
2018-08-170.500 ppb
2018-08-17ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2019-02-05ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-070.500 ppb
2019-08-07ND
2019-08-070.600 ppb
2019-08-07ND
2019-08-07ND
2019-11-04ND
2019-11-04ND
2019-11-04ND
2019-11-040.500 ppb
2019-11-04ND
2019-11-040.500 ppb
2019-11-040.500 ppb
2019-11-04ND
2021-02-034085749ND
2021-02-034085748ND
2021-02-034085746ND
2021-02-034085750ND
2021-02-034085752ND
2021-02-034085753ND
2021-02-034085747ND
2021-02-034085751ND
2021-05-054120831ND
2021-05-054120832ND
2021-05-054120833ND
2021-05-054120834ND
2021-05-054120829ND
2021-05-054120828ND
2021-05-054120835ND
2021-05-054120830ND
2021-05-274210772ND
2021-08-1141664620.600 ppb
2021-08-1141664600.780 ppb
2021-08-1141664610.670 ppb
2021-08-114166458ND
2021-08-114166456ND
2021-08-1141664590.710 ppb
2021-08-1141664550.530 ppb
2021-08-1141664570.540 ppb
2021-11-0242064930.540 ppb
2021-11-0242064910.600 ppb
2021-11-0242064950.660 ppb
2021-11-0242064940.680 ppb
2021-11-0242064920.580 ppb
2021-11-024206490ND
2021-11-0242064890.610 ppb
2021-11-0242064960.570 ppb
2022-02-0942464990.500 ppb
2022-02-094246497ND
2022-02-094246498ND
2022-02-094246493ND
2022-02-094246494ND
2022-02-094246495ND
2022-02-094246500ND
2022-02-094246496ND
2022-05-0442893990.540 ppb
2022-05-044289397ND
2022-05-044289398ND
2022-05-044289400ND
2022-05-044289394ND
2022-05-044289401ND
2022-05-044289396ND
2022-05-044289395ND
2022-06-234331423ND
2022-09-214368357ND
2022-09-2143683550.600 ppb
2022-09-214368361ND
2022-09-2143683590.600 ppb
2022-09-2143683630.500 ppb
2022-09-2143683510.600 ppb
2022-09-2143683530.700 ppb
2022-09-2143683490.500 ppb
2022-11-0743803010.560 ppb
2022-11-074380303ND
2022-11-074380305ND
2022-11-074380296ND
2022-11-074380298ND
2022-11-0743803110.680 ppb
2022-11-074380309ND
2022-11-0743803070.550 ppb
2023-02-134412787ND
2023-02-134412794ND
2023-02-134412789ND
2023-02-134412788ND
2023-02-134412791ND
2023-02-134412793ND
2023-02-134412790ND
2023-02-134412792ND
2023-05-0344864120.560 ppb
2023-05-034486408ND
2023-05-034486405ND
2023-05-034486407ND
2023-05-034486410ND
2023-05-034486409ND
2023-05-034486411ND
2023-05-034486406ND
2023-08-154541697ND
2023-08-224512129ND
2023-08-224512131ND
2023-08-2245121330.510 ppb
2023-08-2245121350.630 ppb
2023-08-224512134ND
2023-08-2245121320.510 ppb
2023-08-224512128ND
2023-08-224512130ND
2023-11-154542897ND
2023-11-154542899ND
2023-11-154542901ND
2023-11-154542903ND
2023-11-154542896ND
2023-11-154542898ND
2023-11-154542902ND
2023-11-154542900ND