Know Your Environment. Protect Your Health.

Bromochloroacetic acid

City of Chico

Bromochloroacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Bromochloroacetic acid and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

 

20

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.650 ppb42ND - 1.30 ppb
20190.350 ppb41ND - 1.40 ppb
20200.250 ppb41ND - 1.000 ppb
20210.775 ppb42ND - 1.90 ppb
20220.500 ppb21ND - 1.000 ppb
20230.500 ppb21ND - 1.000 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.02 ppb

The EWG Health Guideline of 0.02 ppb for bromochloroacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-28Q1808235001ND
2018-06-07Q18227020011.30 ppb
2018-09-26Q18385000011.30 ppb
2018-12-13Q1851676023ND
2019-01-08Q1900653007ND
2019-04-09Q1914098001ND
2019-08-13Q19541520011.40 ppb
2019-11-21Q1977808001ND
2020-03-02Q2007727006ND
2020-06-01Q2021442003ND
2020-08-19Q20332090131.000 ppb
2020-12-16Q2049866001ND
2021-03-10Q2106372001ND
2021-05-12Q21124180011.20 ppb
2021-08-11Q21213720221.90 ppb
2021-12-14Q2135210001ND
2022-09-08Q2226813010ND
2022-09-08Q22268130111.000 ppb
2023-05-30Q2319948001ND
2023-05-30Q23199480021.000 ppb