Know Your Environment. Protect Your Health.

Dibromochloromethane

Polkton Water System

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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20191.15 ppb43ND - 1.80 ppb
20200.563 ppb84ND - 1.20 ppb
20210.750 ppb84ND - 2.00 ppb
20220.630 ppb104ND - 1.80 ppb
20231.04 ppb43ND - 1.79 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
2018-02-0746468-02ND
2018-02-0746468-01ND
2018-05-0250207-02ND
2018-05-0250207-01ND
2018-08-1554962-01ND
2018-08-1554962-02ND
2018-11-0859232-01ND
2018-11-0859232-02ND
2019-05-0966647-011.000 ppb
2019-05-0966647-02ND
2019-08-1370837-021.80 ppb
2019-08-1370837-011.80 ppb
2020-02-0778417-01ND
2020-02-0778417-02ND
2020-05-0181605-011.20 ppb
2020-05-0181605-021.20 ppb
2020-08-1085960-011.10 ppb
2020-08-1085960-021.000 ppb
2020-11-0592505193001_37706ND
2020-11-0592505193002_37706ND
2021-02-0592521523002_37706ND
2021-02-0592521523001_37706ND
2021-05-0737729_21-185751.000 ppb
2021-05-0737729_21-185761.000 ppb
2021-08-1692556268001_377062.00 ppb
2021-08-1692556268002_377062.00 ppb
2021-11-1292572880001_37706ND
2021-11-1292572880002_37706ND
2022-02-1192588386002_37706ND
2022-02-1192588386002A_37706ND
2022-02-1192588386001_37706ND
2022-02-1192588386001A_37706ND
2022-05-0492602957001_37706ND
2022-05-0492602957002_37706ND
2022-08-1292621136001_377061.80 ppb
2022-08-1292621136002_377061.80 ppb
2022-11-0492635445001_377061.40 ppb
2022-11-0492635445002_377061.30 ppb
2023-02-0337729_23-07078ND
2023-05-0837729_23-242411.14 ppb
2023-08-0337729_23-439361.21 ppb
2023-12-1337729_23-707441.79 ppb