Know Your Environment. Protect Your Health.

Bromoform

Ringwood Water Department

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

 

55

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.360 ppb116ND - 0.830 ppb
20190.148 ppb82ND - 0.620 ppb
20200.640 ppb86ND - 1.000 ppb
20210.381 ppb116ND - 0.810 ppb
20220.333 ppb84ND - 0.730 ppb
20230.603 ppb98ND - 0.830 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-19DWS7876-20.530 ppb
2018-02-19DWS7876-10.690 ppb
2018-05-09DWS8634-2ND
2018-05-09DWS8634-3ND
2018-05-09DWS8634-1ND
2018-05-17DWS8713-10.830 ppb
2018-05-17DWS8713-20.670 ppb
2018-08-202335224001ND
2018-08-202335224002ND
2018-11-1918111624-010.670 ppb
2018-11-1918111624-020.570 ppb
2019-02-1819021555-01ND
2019-02-1819021555-02ND
2019-05-177090480001-THMND
2019-05-177090480002-THMND
2019-08-1919081721-0010.620 ppb
2019-08-1919081721-002ND
2019-11-1819111513-001ND
2019-11-1819111513-0020.560 ppb
2020-02-1820021710-0010.600 ppb
2020-02-1820021710-002ND
2020-05-1820051521-0010.840 ppb
2020-05-1820051521-002ND
2020-08-2020081937-0011.000 ppb
2020-08-2020081937-0020.870 ppb
2020-11-1920111829-0010.900 ppb
2020-11-1920111829-0020.910 ppb
2021-02-1921021815-001ND
2021-02-1921021815-002ND
2021-05-1721051702-0010.680 ppb
2021-05-1721051702-0020.670 ppb
2021-06-0121053109-001ND
2021-06-0121053109-002ND
2021-06-0121053109-003ND
2021-08-17210816047-0010.750 ppb
2021-08-17210816047-0020.810 ppb
2021-11-17211116026-0010.660 ppb
2021-11-17211116026-0020.620 ppb
2022-02-17220216023-001ND
2022-02-17220216023-002ND
2022-05-17220515022-002ND
2022-05-17220515022-001ND
2022-08-17220816030-0010.650 ppb
2022-08-17220816030-0020.610 ppb
2022-11-18221117015-0010.670 ppb
2022-11-18221117015-0020.730 ppb
2023-02-21230220034-0010.790 ppb
2023-02-21230220034-0020.830 ppb
2023-05-17230516030-0010.640 ppb
2023-05-17230516030-0020.510 ppb
2023-08-17230816059-0010.810 ppb
2023-08-17230816059-0020.620 ppb
2023-11-20231116019-0010.640 ppb
2023-11-20231116019-0020.590 ppb
2023-11-28231127045-001BND