Know Your Environment. Protect Your Health.

Dibromochloromethane

Lewistown PWS

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

47

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.44 ppb880.510 ppb - 2.96 ppb
20190.933 ppb87ND - 1.46 ppb
20201.36 ppb880.730 ppb - 1.75 ppb
20211.03 ppb880.630 ppb - 1.47 ppb
20221.21 ppb880.660 ppb - 1.81 ppb
20232.07 ppb881.14 ppb - 3.10 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
2018-02-20AD142061.05 ppb
2018-02-20AD142071.23 ppb
2018-05-09AD204391.38 ppb
2018-05-09AD204401.33 ppb
2018-08-08AD311102.56 ppb
2018-08-08AD311112.96 ppb
2018-11-12AD356500.530 ppb
2018-11-12AD356490.510 ppb
2019-02-12AD393170.720 ppb
2019-02-12AD393180.810 ppb
2019-05-14AD473981.000 ppb
2019-05-14AD473991.09 ppb
2019-08-15AD538351.34 ppb
2019-08-15AD538361.46 ppb
2019-11-21AD580251.04 ppb
2019-11-21AD58024ND
2020-02-1020019690.800 ppb
2020-02-1020019680.730 ppb
2020-05-2020087931.17 ppb
2020-05-2020087921.62 ppb
2020-08-1920142311.74 ppb
2020-08-1920142301.75 ppb
2020-11-0920179121.50 ppb
2020-11-0920179131.60 ppb
2021-02-0821005631.47 ppb
2021-02-0821005641.000 ppb
2021-05-1021108340.630 ppb
2021-05-1021108350.770 ppb
2021-08-3021175350.930 ppb
2021-08-3021175361.02 ppb
2021-11-1521193991.16 ppb
2021-11-1521193981.28 ppb
2022-03-1422018570.730 ppb
2022-03-1422018580.660 ppb
2022-05-1222114540.980 ppb
2022-05-1622114550.910 ppb
2022-08-1022161361.41 ppb
2022-08-1022161371.40 ppb
2022-11-1522210601.79 ppb
2022-11-1522210591.81 ppb
2023-02-1423004821.14 ppb
2023-02-1423004811.21 ppb
2023-05-1523080291.66 ppb
2023-05-1523080281.71 ppb
2023-08-1723131973.10 ppb
2023-08-1723131963.00 ppb
2023-11-1523181642.35 ppb
2023-11-1523181632.38 ppb