Know Your Environment. Protect Your Health.

Bromoform

City of Alto

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.

 

61

Samples

0

Samples exceeding legal limit (MCL)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201815.1 ppb10107.09 ppb - 21.9 ppb
201913.6 ppb1110ND - 22.3 ppb
202010.6 ppb108ND - 21.3 ppb
202110.4 ppb108ND - 23.2 ppb
20225.72 ppb105ND - 24.0 ppb
20238.30 ppb109ND - 21.0 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
2018-02-22Q180763400218.3 ppb
2018-02-22Q180763400119.8 ppb
2018-05-29Q182130200117.6 ppb
2018-05-29Q18213020069.82 ppb
2018-05-29Q182130201014.0 ppb
2018-08-16Q183296800118.6 ppb
2018-08-16Q183296800221.9 ppb
2018-10-30Q184387900110.2 ppb
2018-10-30Q184387900213.4 ppb
2018-12-11Q18508970047.09 ppb
2019-03-20Q19117200028.81 ppb
2019-03-20Q191172000413.6 ppb
2019-03-20Q191172000614.2 ppb
2019-03-29Q191291600219.9 ppb
2019-05-20Q1927027002ND
2019-05-20Q19270270073.03 ppb
2019-05-20Q192702700622.3 ppb
2019-09-19Q196802400118.2 ppb
2019-09-19Q196802400221.4 ppb
2019-12-04Q197919400113.3 ppb
2019-12-04Q197919400214.8 ppb
2020-03-23Q201215400115.1 ppb
2020-03-23Q201215400218.2 ppb
2020-05-27Q20211860016.79 ppb
2020-05-27Q20211860029.19 ppb
2020-08-05Q2031226001ND
2020-08-05Q2031226002ND
2020-10-22Q204119801021.3 ppb
2020-10-22Q204119800913.5 ppb
2020-10-22Q20411980013.17 ppb
2020-10-22Q204119800319.0 ppb
2021-03-11Q210646400113.6 ppb
2021-03-11Q210646400214.5 ppb
2021-05-11Q2112089001ND
2021-05-11Q2112089002ND
2021-08-09Q21209490014.47 ppb
2021-08-09Q21209490026.08 ppb
2021-10-14Q212884500614.3 ppb
2021-10-14Q212884500811.4 ppb
2021-10-14Q212884501416.1 ppb
2021-10-14Q212884501523.2 ppb
2022-03-03Q2207391003ND
2022-03-03Q2207391005ND
2022-03-03Q2207391010ND
2022-03-03Q22073910111.52 ppb
2022-05-16Q221443800113.7 ppb
2022-05-16Q2214438002ND
2022-08-04Q222234700116.9 ppb
2022-08-04Q222234700224.0 ppb
2022-10-10Q2230465001ND
2022-10-10Q22304650021.06 ppb
2023-01-10Q23012180017.58 ppb
2023-01-10Q230121800220.5 ppb
2023-04-20Q2314880004ND
2023-04-20Q23148800063.47 ppb
2023-04-20Q23148800096.58 ppb
2023-04-20Q23148800105.18 ppb
2023-07-10Q232654500110.4 ppb
2023-07-10Q232654500221.0 ppb
2023-10-24Q23457420012.51 ppb
2023-10-24Q23457420025.81 ppb