Know Your Environment. Protect Your Health.

Dibromochloromethane

Rocky Mount, Town of

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.691 ppb10100.420 ppb - 0.980 ppb
20190.686 ppb880.250 ppb - 1.03 ppb
20200.414 ppb95ND - 1.000 ppb
20210.190 ppb82ND - 1.000 ppb
2022ND80ND
2023ND80ND

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
2018-02-1318021754-06A0.450 ppb
2018-02-1318021754-04A0.540 ppb
2018-05-0918051655-03A0.980 ppb
2018-05-0918051655-05A0.960 ppb
2018-08-0718081653-04A0.720 ppb
2018-08-0718081653-06A0.760 ppb
2018-08-2918084316-01A0.790 ppb
2018-08-2918084316-03A0.840 ppb
2018-11-0718111281-01A0.420 ppb
2018-11-0718111281-03A0.450 ppb
2019-02-1119021456-04A0.250 ppb
2019-02-1119021456-06A0.420 ppb
2019-05-0719051103-03A0.750 ppb
2019-05-0719051103-04A0.940 ppb
2019-08-0519080727-04A0.781 ppb
2019-08-0519080727-06A1.03 ppb
2019-11-187387490040.720 ppb
2019-11-187387490060.600 ppb
2020-02-107317523004-TTHM0.610 ppb
2020-02-107317523003-TTHMND
2020-02-247319002002ND
2020-05-1173273700040.570 ppb
2020-05-117327370030.770 ppb
2020-08-1073382740061.000 ppb
2020-08-1073382740040.780 ppb
2020-11-097349740006_460165ND
2020-11-097349740004_460165ND
2021-02-087359716004_460165ND
2021-02-087359716003_460165ND
2021-05-107370870003_460165ND
2021-05-107370870005_460165ND
2021-08-117384218006_4601651.000 ppb
2021-08-117384218004_460165ND
2021-11-10810-8267-4ND
2021-11-10810-8267-20.520 ppb
2022-02-212025210-04ND
2022-02-212025210-02ND
2022-05-112054055-01ND
2022-05-112054055-03ND
2022-08-102084897-02ND
2022-08-102084897-04ND
2022-11-092113916-01ND
2022-11-092113916-03ND
2023-02-083023686-01ND
2023-02-083023686-03ND
2023-05-103053983-0BND
2023-05-103053983-0DND
2023-08-093084072-01ND
2023-08-093084072-03ND
2023-11-083113719-01ND
2023-11-083113719-04ND