Know Your Environment. Protect Your Health.

Bromodichloromethane

Walnut Grove Utilities

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.

 

61

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.78 ppb440.900 ppb - 4.90 ppb
20191.63 ppb32ND - 3.80 ppb
20201.83 ppb126ND - 6.40 ppb
20212.23 ppb138ND - 9.60 ppb
20224.25 ppb119ND - 12.0 ppb
20231.76 ppb1812ND - 5.90 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
2018-03-08282649-2018-DW0.900 ppb
2018-03-08282650-2018-DW1.000 ppb
2018-08-14292104-2018-DW4.30 ppb
2018-08-14292105-2018-DW4.90 ppb
2019-07-16309019-2019-DWND
2019-08-21310993-2019-DW3.80 ppb
2019-08-21310994-2019-DW1.10 ppb
2020-02-19320756-2020-DWND
2020-02-19320756-2020-DWND
2020-02-24320967-2020-DWND
2020-02-24320967-2020-DWND
2020-02-24320966-2020-DWND
2020-02-24320966-2020-DWND
2020-05-27325626-2020-DW3.80 ppb
2020-05-28325700-2020-DW2.00 ppb
2020-08-24331120-2020-DW3.90 ppb
2020-08-25331241-2020-DW0.600 ppb
2020-11-17335908-2020-DW6.40 ppb
2020-11-17335909-2020-DW5.20 ppb
2021-02-257361577001ND
2021-02-2573615770020.470 ppb
2021-03-187364280001ND
2021-03-187364282001V0.940 ppb
2021-04-2273685890010.830 ppb
2021-05-1373713270019.60 ppb
2021-05-137371329001ND
2021-05-137371332001VND
2021-08-111085091-014.00 ppb
2021-08-111085094-015.00 ppb
2021-08-167384685001VND
2021-09-077387721001A0.870 ppb
2021-12-22810-11094-17.30 ppb
2022-02-22810-15826-18.70 ppb
2022-02-22810-15825-12.50 ppb
2022-05-16FWE0089-016.00 ppb
2022-05-16FWE0077-012.60 ppb
2022-08-09FWG0302-0112.0 ppb
2022-08-10FWG0299-015.10 ppb
2022-10-26FWJ0181-010.800 ppb
2022-11-14FWJ0184ND
2022-11-14FWJ0172-015.00 ppb
2022-11-14FWJ0190-014.00 ppb
2022-11-15FWJ0191ND
2023-02-07FXB0070-01ND
2023-02-07FXB0061-01ND
2023-02-09FXB0077-01ND
2023-02-15FXB0428-015.00 ppb
2023-02-15FXB0444-011.40 ppb
2023-04-04FXC05100.740 ppb
2023-04-04FXC0539-010.590 ppb
2023-04-05FXC0546-010.570 ppb
2023-04-05FXC0561-013.20 ppb
2023-04-06FXC0504-01ND
2023-04-06FXD0264-01ND
2023-05-31FXE0919-015.90 ppb
2023-05-31FXE0920-013.20 ppb
2023-08-02FXF0580-01ND
2023-08-15FXF0561-012.80 ppb
2023-08-15FXF0562-013.20 ppb
2023-11-14683540012.70 ppb
2023-11-14683539012.40 ppb