Know Your Environment. Protect Your Health.

Bromoform

Rra Arrowhead Lake Lots

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.

 

51

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.46 ppb993.81 ppb - 9.49 ppb
20193.58 ppb992.67 ppb - 4.35 ppb
20203.75 ppb98ND - 5.22 ppb
20210.809 ppb83ND - 2.58 ppb
20220.516 ppb83ND - 1.56 ppb
20231.22 ppb87ND - 1.93 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
2018-02-28Q18084460023.81 ppb
2018-02-28Q18084460014.03 ppb
2018-05-07Q18183160066.19 ppb
2018-05-07Q18183160036.18 ppb
2018-08-22Q18338320016.02 ppb
2018-08-22Q18338320038.18 ppb
2018-08-22Q18338320047.11 ppb
2018-11-13Q18457300017.16 ppb
2018-11-13Q18457300029.49 ppb
2019-01-28Q19039180092.88 ppb
2019-01-28Q19039180103.11 ppb
2019-05-16Q19265640014.35 ppb
2019-05-16Q19265640024.20 ppb
2019-08-20Q19573830033.76 ppb
2019-08-20Q19573830043.78 ppb
2019-08-20Q19573830012.67 ppb
2019-11-21Q19777900013.35 ppb
2019-11-21Q19777900024.08 ppb
2020-02-27Q20074640013.84 ppb
2020-02-27Q20074640023.85 ppb
2020-06-09Q20232210015.22 ppb
2020-06-09Q20232210024.25 ppb
2020-09-22Q20375650013.38 ppb
2020-09-22Q20375650034.82 ppb
2020-09-22Q20375650044.14 ppb
2020-11-17Q2045515001ND
2020-11-17Q20455150024.25 ppb
2021-03-09Q21060520042.23 ppb
2021-03-09Q21060520052.58 ppb
2021-06-08Q2114861001ND
2021-06-08Q21148610021.66 ppb
2021-09-08Q2124630001ND
2021-09-08Q2124630002ND
2021-12-06Q2133793001ND
2021-12-06Q2133793002ND
2022-03-23Q22095300011.56 ppb
2022-03-23Q22095300021.16 ppb
2022-05-25Q2215153003ND
2022-05-25Q2215153002ND
2022-08-17Q2224342001ND
2022-08-17Q2224342002ND
2022-11-09Q2233923002ND
2022-11-09Q22339230031.41 ppb
2023-02-13Q23055010021.20 ppb
2023-02-13Q23055010031.93 ppb
2023-05-10Q23179660021.25 ppb
2023-05-10Q2317966003ND
2023-08-21Q23351280011.40 ppb
2023-08-21Q23351280031.34 ppb
2023-11-01Q23468610021.35 ppb
2023-11-01Q23468610031.25 ppb