Know Your Environment. Protect Your Health.

Dibromochloromethane

City of West

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.

 

60

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.46 ppb94ND - 20.9 ppb
20197.49 ppb119ND - 27.2 ppb
20207.57 ppb109ND - 24.6 ppb
20217.18 ppb108ND - 18.8 ppb
20227.73 ppb105ND - 22.6 ppb
20236.67 ppb105ND - 17.8 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
2018-02-13AE13520ND
2018-02-13AE1351912.3 ppb
2018-05-02AE24777ND
2018-05-02AE2475511.0 ppb
2018-07-17AE33564ND
2018-07-17AE3356613.9 ppb
2018-07-17AE33603ND
2018-10-11AE43219ND
2018-10-11AE4322520.9 ppb
2019-03-12AE580231.80 ppb
2019-03-12AE5803011.5 ppb
2019-04-18AE629442.50 ppb
2019-04-18AE6294511.8 ppb
2019-04-18AE629671.40 ppb
2019-08-12AE78070ND
2019-08-12AE779731.40 ppb
2019-08-12AE7797123.2 ppb
2019-11-04AE882871.60 ppb
2019-11-04AE8829027.2 ppb
2019-11-04AE88315ND
2020-02-18AE986592.60 ppb
2020-02-18AE9866024.6 ppb
2020-02-18AE98684ND
2020-05-05AF093063.10 ppb
2020-05-05AF093078.90 ppb
2020-05-05AF093701.20 ppb
2020-08-25AF250061.60 ppb
2020-08-25AF2500712.0 ppb
2020-12-02AF3622420.4 ppb
2020-12-02AF362251.30 ppb
2021-02-10Q2104479001ND
2021-02-10Q2104479003ND
2021-03-16AF470447.30 ppb
2021-03-16AF4704510.00 ppb
2021-05-11AF532132.50 ppb
2021-06-01AF5603214.4 ppb
2021-08-10AF6557014.4 ppb
2021-08-10AF655722.70 ppb
2021-10-26AF7467318.8 ppb
2021-10-26AF746751.70 ppb
2022-02-17AF85482ND
2022-02-17AF8548412.7 ppb
2022-06-02AF99388ND
2022-06-02AF99386ND
2022-06-02AF9931219.7 ppb
2022-06-02AF99309ND
2022-08-10AG085076.10 ppb
2022-08-10AG0850816.2 ppb
2022-11-22AG19588ND
2022-11-22AG1961322.6 ppb
2023-03-15AG330761.70 ppb
2023-03-15AG3307714.7 ppb
2023-05-18AG41005ND
2023-05-18AG4100617.0 ppb
2023-05-18AG41100ND
2023-05-18AG41102ND
2023-08-22AG53406ND
2023-08-22AG5340815.5 ppb
2023-10-05AG5860317.8 ppb
2023-10-05AG58605ND