Know Your Environment. Protect Your Health.

Bromodichloromethane

Skagit County Public Utility District 1 Judy Reservoir

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

161

Samples

0

Samples exceeding legal limit (MCL)

161

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.834 ppb32320.600 ppb - 1.10 ppb
20190.803 ppb32320.500 ppb - 1.10 ppb
2020N/A00N/A
20210.975 ppb32320.700 ppb - 1.50 ppb
20220.828 ppb32320.510 ppb - 1.10 ppb
20230.750 ppb33330.520 ppb - 1.10 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-01-290.800 ppb
2018-01-290.900 ppb
2018-01-290.800 ppb
2018-01-290.900 ppb
2018-01-301.000 ppb
2018-01-300.800 ppb
2018-01-300.700 ppb
2018-01-300.900 ppb
2018-04-230.900 ppb
2018-04-230.800 ppb
2018-04-230.900 ppb
2018-04-230.700 ppb
2018-04-230.800 ppb
2018-04-240.800 ppb
2018-04-241.000 ppb
2018-04-240.900 ppb
2018-07-231.10 ppb
2018-07-231.000 ppb
2018-07-231.000 ppb
2018-07-231.000 ppb
2018-07-241.10 ppb
2018-07-241.000 ppb
2018-07-241.000 ppb
2018-07-241.000 ppb
2018-10-220.700 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2018-10-220.600 ppb
2019-01-280.800 ppb
2019-01-280.700 ppb
2019-01-280.800 ppb
2019-01-280.800 ppb
2019-01-290.800 ppb
2019-01-290.900 ppb
2019-01-290.800 ppb
2019-01-290.800 ppb
2019-04-251.10 ppb
2019-04-251.000 ppb
2019-04-251.000 ppb
2019-04-251.10 ppb
2019-04-251.000 ppb
2019-04-291.10 ppb
2019-04-301.000 ppb
2019-04-301.10 ppb
2019-07-290.800 ppb
2019-07-290.800 ppb
2019-07-290.800 ppb
2019-07-290.800 ppb
2019-07-300.800 ppb
2019-07-300.800 ppb
2019-07-300.800 ppb
2019-07-310.800 ppb
2019-10-280.500 ppb
2019-10-280.500 ppb
2019-10-280.500 ppb
2019-10-280.700 ppb
2019-10-280.700 ppb
2019-10-280.500 ppb
2019-10-280.500 ppb
2019-10-280.600 ppb
2021-01-2540737210.800 ppb
2021-01-2540737090.700 ppb
2021-01-2540737230.700 ppb
2021-01-2540737130.800 ppb
2021-01-2540737110.800 ppb
2021-01-2540737190.700 ppb
2021-01-2540737150.700 ppb
2021-01-2540737170.700 ppb
2021-04-2641129311.10 ppb
2021-04-2641128991.10 ppb
2021-04-2641129291.000 ppb
2021-04-2641129331.000 ppb
2021-04-2641129271.10 ppb
2021-04-2641129371.10 ppb
2021-04-2641129351.000 ppb
2021-04-2641129011.000 ppb
2021-07-2641490081.10 ppb
2021-07-2641490061.20 ppb
2021-07-2641490041.30 ppb
2021-07-2641490101.50 ppb
2021-07-2641490141.40 ppb
2021-07-2641490121.40 ppb
2021-07-2641490001.20 ppb
2021-07-2641490021.40 ppb
2021-10-1841977380.800 ppb
2021-10-1841977240.800 ppb
2021-10-1841977280.800 ppb
2021-10-1841977320.800 ppb
2021-10-1841977260.800 ppb
2021-10-1841977300.800 ppb
2021-10-1841977340.800 ppb
2021-10-1841977360.800 ppb
2022-01-2442402780.510 ppb
2022-01-2442402790.640 ppb
2022-01-2442402810.530 ppb
2022-01-2442402760.620 ppb
2022-01-2442402750.560 ppb
2022-01-2442402770.560 ppb
2022-01-2442402800.530 ppb
2022-01-2442402820.550 ppb
2022-04-2542893880.760 ppb
2022-04-2542893920.790 ppb
2022-04-2542893910.850 ppb
2022-04-2542893900.800 ppb
2022-04-2542893870.940 ppb
2022-04-2542893930.790 ppb
2022-04-2542893890.750 ppb
2022-04-2542893860.790 ppb
2022-08-0243351091.10 ppb
2022-08-0243351070.990 ppb
2022-08-0243351140.990 ppb
2022-08-0243351080.810 ppb
2022-08-0243351130.940 ppb
2022-08-0243351110.860 ppb
2022-08-0243351100.940 ppb
2022-08-0243351121.10 ppb
2022-10-2443803341.000 ppb
2022-10-2443803361.000 ppb
2022-10-2443803411.10 ppb
2022-10-2443803390.950 ppb
2022-10-2443803350.780 ppb
2022-10-2443803330.890 ppb
2022-10-2443803320.990 ppb
2022-10-2443803431.10 ppb
2023-01-2344038460.530 ppb
2023-01-2344038440.700 ppb
2023-01-2344038510.530 ppb
2023-01-2344038490.520 ppb
2023-01-2344038470.530 ppb
2023-01-2344038450.540 ppb
2023-01-2344038480.650 ppb
2023-01-2344038500.540 ppb
2023-04-2445024051.10 ppb
2023-04-2445024031.10 ppb
2023-04-2445024081.000 ppb
2023-04-2445024011.000 ppb
2023-04-2445024061.000 ppb
2023-04-2445024070.940 ppb
2023-04-2445024040.990 ppb
2023-04-2445024021.10 ppb
2023-07-2745296780.650 ppb
2023-07-2745296760.670 ppb
2023-07-2745296720.600 ppb
2023-07-2745296740.600 ppb
2023-07-2745296730.610 ppb
2023-07-2745296750.660 ppb
2023-07-2745296710.680 ppb
2023-07-2745296770.660 ppb
2023-08-1045098780.710 ppb
2023-10-2345417230.810 ppb
2023-10-2345417260.790 ppb
2023-10-2345417250.800 ppb
2023-10-2345417240.800 ppb
2023-10-2345417220.770 ppb
2023-10-2345417200.670 ppb
2023-10-2345417190.710 ppb
2023-10-2345417210.800 ppb