Know Your Environment. Protect Your Health.

Bromoform

Iola, City of

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.336 ppb84ND - 0.980 ppb
20190.249 ppb83ND - 0.860 ppb
2020ND80ND
20210.264 ppb82ND - 1.40 ppb
20220.0888 ppb81ND - 0.710 ppb
20230.384 ppb85ND - 0.750 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
2018-02-12908046ND
2018-02-12908047ND
2018-05-149708750.550 ppb
2018-05-149708760.580 ppb
2018-08-1310253390.980 ppb
2018-08-1310253400.580 ppb
2018-11-121076313ND
2018-11-121076314ND
2019-02-041114339ND
2019-02-041114340ND
2019-05-0611577780.860 ppb
2019-05-061157779ND
2019-08-051215886ND
2019-08-051215887ND
2019-11-0412687760.600 ppb
2019-11-0412687750.530 ppb
2020-02-031318410ND
2020-02-031318412ND
2020-05-111375067ND
2020-05-111375066ND
2020-08-101485393ND
2020-08-101485391ND
2020-11-021632663ND
2020-11-021632665ND
2021-02-0117603410.710 ppb
2021-02-011760342ND
2021-05-031829493ND
2021-05-031829492ND
2021-08-021901642ND
2021-08-021901643ND
2021-11-152027757ND
2021-11-2220355461.40 ppb
2022-02-142194847ND
2022-02-142194846ND
2022-05-092255422ND
2022-05-092255423ND
2022-08-082329374ND
2022-08-082329375ND
2022-11-212402395ND
2022-11-2124023960.710 ppb
2023-02-1324502870.750 ppb
2023-02-1324502860.620 ppb
2023-05-0824979080.540 ppb
2023-05-082497907ND
2023-08-1425582090.590 ppb
2023-08-1425582100.570 ppb
2023-11-062607478ND
2023-11-062607479ND